2009 GM Medium Duty Electrical Manual.PDF

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 E  LECTR ICAL  M  ANUA L – 2009 M  EDIU M  D UTY  – C-S  ERIE S – C ONVENTIONAL  C  AB Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab       P       A       G       E i OVERVIEW  ORGANIZA TION............................................................................................................................................................................. A-1  What’ s New For The 2009 Medium Duty C-Series ................................................................................................................. A-1  Navigation/Viewing.................................................................................................................................................................. A-2  Printing .................................................................................................................................................................................... A-2 SYSTEM OPERA TING INSTRUCTIONS ............................................................................................................................................... A-3  UF3 Fast Idle Option Electrical Requirements...................................................................................................................... A-4  OUTLINE ................................................................................................................................................................................. A-4  Overview ......................................................................................................................................................................... A-4  Engine/T ransmission Variations ...................................................................................................................................... A-4  Factory Installed Equipment ........................................................................................................................................... A-4  Uptter Installed Equipment ........................................................................................................................................... A-5 Operation ........................................................................................................................................................................ A-5  Appendix ......................................................................................................................................................................... A-6  PTO Power T ake Off Option Electrical Requirements ......................................................................................................... A-7  OUTLINE ................................................................................................................................................................................. A-7  Overview ......................................................................................................................................................................... A-8  Engine/T ransmission Variations ...................................................................................................................................... A-9  Voc ation/Modes .............................................................................................................................................................. A-9  Factory Installed Equipment ......................................................................................................................................... A-10 Uptter Ins talled Equipment ......................................................................................................................................... A-10  Operation ...................................................................................................................................................................... A-11  Stationary Preset Mode ........................................................................................................................................... A-12  Stationary Variab le Mode ......................................................................................................................................... A-14  Mobile Variable Mode .............................................................................................................................................. A-16  Index (continued on next page)

Transcript of 2009 GM Medium Duty Electrical Manual.PDF

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E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB

Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

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i

OVERVIEW

ORGANIZATION ............................................................................................................................................................................. A-1

What’s New For The 2009 Medium Duty C-Series ................................................................................................................. A-1

Navigation/Viewing.................................................................................................................................................................. A-2

Printing .................................................................................................................................................................................... A-2

SYSTEM OPERATING INSTRUCTIONS ............................................................................................................................................... A-3

UF3 – Fast Idle Option – Electrical Requirements ...................................................................................................................... A-4

OUTLINE ................................................................................................................................................................................. A-4

Overview ......................................................................................................................................................................... A-4

Engine/Transmission Variations ...................................................................................................................................... A-4

Factory Installed Equipment ........................................................................................................................................... A-4

Upfitter Installed Equipment ........................................................................................................................................... A-5

Operation ........................................................................................................................................................................ A-5

Appendix ......................................................................................................................................................................... A-6

PTO – Power Take Off Option – Electrical Requirements ......................................................................................................... A-7

OUTLINE ................................................................................................................................................................................. A-7

Overview ......................................................................................................................................................................... A-8 Engine/Transmission Variations ...................................................................................................................................... A-9

Vocation/Modes .............................................................................................................................................................. A-9

Factory Installed Equipment ......................................................................................................................................... A-10

Upfitter Installed Equipment ......................................................................................................................................... A-10

Operation ...................................................................................................................................................................... A-11

Stationary Preset Mode ........................................................................................................................................... A-12

Stationary Variable Mode ......................................................................................................................................... A-14

Mobile Variable Mode .............................................................................................................................................. A-16

Index

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PTO – Power Take Off Option – Electrical Requirements – Operation (continued)

PTO Engine Shutdown ............................................................................................................................................. A-18

Reprogramming ....................................................................................................................................................... A-20

Fast Idle & PTO Switches ........................................................................................................................................ A-22

DIESEL PARTICULATE FILTER (DPF) SYSTEM DESCRIPTION

Exhaust Particulate Filter .............................................................................................................................................................. A-25

Diesel Particulate Filter Layout ..................................................................................................................................................... A-25

Diesel Oxidation Catalyst .............................................................................................................................................................. A-25

Differential Pressure Sensor (DPS) and Pressure Lines ................................................................................................................ A-25

Exhaust Gas Temperature Sensors ............................................................................................................................................... A-26

Intake Air (AI) Valve ....................................................................................................................................................................... A-26

Exhaust Cooler.............................................................................................................................................................................. A-26

Normal Regeneration .................................................................................................................................................................... A-26

Service Regeneration .................................................................................................................................................................... A-27

Regeneration Process ................................................................................................................................................................... A-27

Ash Loading .................................................................................................................................................................................. A-27DIESEL PARTICULATE FILTER (DPF) REGENERATION ENABLE

Regeneration Enable Process ....................................................................................................................................................... A-28

DIESEL PARTICULATE FILTER (DPF) SERVICE REGENERATION

Conditions For Running ................................................................................................................................................................ A-29

Test Procedure .............................................................................................................................................................................. A-29

6.6L (LMM) DIESEL EXHAUST COMPONENT SURFACE TEMPERATURES

Exhaust Component Surface Temperatures Chart ....................................................................................................................... A-32

Index (continued)

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E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB

Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

ELECTRICAL COMPONENT LOCATIONS

Electrical Component Legend ........................................................................................................................................................B-1

Ground Zones ................................................................................................................................................................................. B-2

Underhood Distribution Center ....................................................................................................................................................... B-3

Fuse Block – Underhood (Primary) Label Usage ............................................................................................................................ B-4

Fuse Block – Underhood (Primary) Top View .................................................................................................................................. B-5

Fuse Block – Underhood (Primary) Bottom View ............................................................................................................................ B-6

Fuse Block – Underhood (Primary) Wire Entry ................................................................................................................................ B-7

Fuse Block – Underhood (Secondary) Label .................................................................................................................................. B-9 Fuse Block – Underhood (Secondary) .......................................................................................................................................... B-10

Fuse Block – Underhood (Secondary) Wire Entry ......................................................................................................................... B-11

Fuse Block – I/P 1 Label ............................................................................................................................................................... B-12

Fuse Block – I/P 1 Label Usage .................................................................................................................................................... B-13

Fuse Block – I/P 1 Front View ....................................................................................................................................................... B-15

Fuse Block – I/P 1 Back View ....................................................................................................................................................... B-16

Fuse Block – I/P 1 Wire Entry ....................................................................................................................................................... B-17

Fuse Block – I/P 2 Label ............................................................................................................................................................... B-18

Fuse Block – I/P 2 ......................................................................................................................................................................... B-19

Fuse Block – I/P 2 Wire Entry ....................................................................................................................................................... B-20

Location Views – U/H Fuse Center ............................................................................................................................................... B-22

Location Views – I/P Harness w/I/P-1 & I/P-2 .............................................................................................................................. B-23

Location Views – I/P-2 Fuse Center .............................................................................................................................................. B-24

Turn Signal Flasher ....................................................................................................................................................................... B-25

Index (continued)

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Index (continued)ELECTRICAL AND PIN-OUT ILLUSTRATIONS

12-Way Body Builder Connector .................................................................................................................................................... C-1

Body Builder Connector Location...................................................................................................................................................C-2

10-Way Bus Connector / 2-Way Bus Connector – Family 2 ........................................................................................................... C-3

Bus Connector Location – Family 2 ................................................................................................................................................ C-4

8.1L (L18) Powertrain Control Module (PCM) – Connector C-1 ..................................................................................................... C-6

8.1L (L18) Powertrain Control Module (PCM) – Connector C-2 ..................................................................................................... C-8

7.8L (LF8) Engine Control Module (ECM) – Location .................................................................................................................... C-10

7.8L (LF8) Engine Control Module (ECM) – Connector C-1 .......................................................................................................... C-11

7.8L (LF8) Engine Control Module (ECM) – Connector C-2 .......................................................................................................... C-13 6.6L (LMM) Engine Control Module (ECM) – Location .................................................................................................................. C-15

6.6L (LMM) Engine Control Module (ECM) – Connector C-1 ........................................................................................................ C-16

6.6L (LMM) Engine Control Module (ECM) – Connector C-2 ........................................................................................................ C-19

7.2L (LF6) CAT Engine Control Module (ECM) – Connector C-1 .................................................................................................. C-21

7.2L (LF6) CAT Engine Control Module (ECM) – Connector C-2 .................................................................................................. C-23

16-Way Serial Data Link Connector .............................................................................................................................................. C-26

Serial Data Link Connector Location ............................................................................................................................................ C-27

8-Way Tail Lamp Connector ..........................................................................................................................................................C-28

Tail Lamp Connector Location ...................................................................................................................................................... C-30

7-Way Tractor Connector – Family 3 ............................................................................................................................................ C-31

Tractor Connector – Family 3 Location ......................................................................................................................................... C-32

7-Way Trailer Connector – Family 2 .............................................................................................................................................. C-33

Trailer Connector Location – Family 2 .......................................................................................................................................... C-34

7-Way Trailer Connector – Family 3 .............................................................................................................................................. C-35

Trailer Connector Location – Family 3 .......................................................................................................................................... C-36

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Index (continued)

ELECTRICAL AND PIN-OUT ILLUSTRATIONS (continued)

10-Way Transmission Optional Connector ................................................................................................................................... C-37

Transmission Optional Connector Location .................................................................................................................................. C-38

10-Way Upfitter PTO Connector ................................................................................................................................................... C-39

Upfitter PTO Connector Location ................................................................................................................................................. C-40

C127 Engine Chassis Harness to Remote Power Take Off (PTO) (LF8) ....................................................................................... C-41

Right Rear Side of Engine Compartment (LF8) ............................................................................................................................. C-42

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Index (continued)

SUBSYSTEM ELECTRICAL SCHEMATICS

Schematic Description and Navigation Instructions .................................................................................................................D-1

Power Distribution

(L18) 8.1L V8 GMPT VORTEC® - Gas ..................................................................................................................................... D-3

(LMM) 6.6L V8 Isuzu DURAMAX® - Diesel ............................................................................................................................ D-12

(LF8) 7.8L L6 Isuzu 6H - Diesel ............................................................................................................................................. D-21

(LF6) 7.2L L6 Caterpillar® C7 - Diesel....................................................................................................................................D-30

Ground Distribution

(L18) 8.1L V8 GMPT VORTEC®

- Gas – (LMM) 6.6L V8 Isuzu DURAMAX®

- Diesel ............................................................. D-39 (LF8) 7.8L L6 Isuzu 6H - Diesel ............................................................................................................................................. D-51

(LF6) 7.2L L6 Caterpillar® C7 - Diesel....................................................................................................................................D-64

Power Take-Off

(L18) 8.1L V8 GMPT VORTEC® - Gas – (LMM) 6.6L V8 Isuzu DURAMAX® - Diesel –

(LF8) 7.8L L6 Isuzu 6H - Diesel ..................................................................................................................................... D-76

(LF6) 7.2L L6 Caterpillar® C7 - Diesel .................................................................................................................................. D-78

Auxiliary Power............................................................................................................................................................................D-80

Engine Controls

(L18) 8.1L V8 GMPT VORTEC® - Gas ................................................................................................................................... D-81

(LMM) 6.6L V8 Isuzu DURAMAX® - Diesel ............................................................................................................................ D-93

(LF8) 7.8L L6 Isuzu 6H - Diesel ........................................................................................................................................... D-107

(LF6) 7.2L L6 Caterpillar® C7 - Diesel..................................................................................................................................D-119

Fan Control ................................................................................................................................................................................D-131

ETC

(L18) 8.1L V8 GMPT VORTEC® - Gas ................................................................................................................................. D-132

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Index (continued)

SUBSYSTEM ELECTRICAL SCHEMATICS (continued)

Fuel

(L18) 8.1L V8 GMPT VORTEC® - Gas - Family 2 ................................................................................................................ D-134

(L18) 8.1L V8 GMPT VORTEC® - Gas - Family 3 ................................................................................................................ D-136

(LMM) 6.6L V8 Isuzu DURAMAX® - Diesel .......................................................................................................................... D-138

(LF8) 7.8L L6 Isuzu 6H - Diesel - (LF6) 7.2L L6 Caterpillar® C7 - Diesel ............................................................................. D-139

Heated Fuel/Water In Fuel

(LMM) 6.6L V8 Isuzu DURAMAX® - Diesel .......................................................................................................................... D-140

(LF6) 7.2L L6 Caterpillar® C7 - Diesel..................................................................................................................................D-141

(LF8) 7.8L L6 Isuzu 6H - Diesel ........................................................................................................................................... D-142

Automatic Transmissions

LCT Transmission ................................................................................................................................................................ D-143

MD Transmission ................................................................................................................................................................. D-146

Exhaust Brake/Restrictor

(LMM) 6.6L V8 Isuzu DURAMAX® - Diesel – (LF8) 7.8L L6 Isuzu 6H - Diesel –

(LF6) 7.2L L6 Caterpillar® C7 - Diesel .........................................................................................................................D-149

Starting & Charging (L18) 8.1L V8 GMPT VORTEC® - Gas ................................................................................................................................. D-150

(LMM) 6.6L V8 Isuzu DURAMAX® - Diesel .......................................................................................................................... D-153

(LF8) 7.8L L6 Isuzu 6H - Diesel ........................................................................................................................................... D-156

(LF6) 7.2L L6 Caterpillar® C7 - Diesel..................................................................................................................................D-158

Cruise Control

(L18) 8.1L V8 GMPT VORTEC® - Gas – (LMM) 6.6L V8 Isuzu DURAMAX® - Diesel ........................................................... D-160

(LF8) 7.8L L6 Isuzu 6H - Diesel ........................................................................................................................................... D-161

(LF6) 7.2L L6 Caterpillar® C7 - Diesel..................................................................................................................................D-162

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Index (continued)

SUBSYSTEM ELECTRICAL SCHEMATICS (continued)

Batteries (L18) 8.1L V8 GMPT VORTEC® - Gas - Top Post ................................................................................................................ D-163

(L18) 8.1L V8 GMPT VORTEC® - Gas - Side Post ..............................................................................................................D-165

(L18) 8.1L V8 GMPT VORTEC® - Gas - Bus ........................................................................................................................ D-166

(LMM) 6.6L V8 Isuzu DURAMAX® - Diesel .......................................................................................................................... D-167

(LMM) 6.6L V8 Isuzu DURAMAX® - Diesel - Bus ................................................................................................................D-169

(LF8) 7.8L L6 Isuzu 6H - Diesel ........................................................................................................................................... D-170

(LF6) 7.2L L6 Caterpillar® C7 - Diesel..................................................................................................................................D-171

2-Speed Rear Axle

(L18) 8.1L V8 GMPT VORTEC® - Gas – (LF8) 7.8L L6 Isuzu 6H - Diesel ............................................................................ D-172

(LF6) 7.2L L6 Caterpillar® C7 - Diesel..................................................................................................................................D-174

Active Transfer Case ................................................................................................................................................................D-176

Horn ...........................................................................................................................................................................................D-178

Brakes

Hydraulic (C4500 thru C7500) ............................................................................................................................................. D-179

Air (C7500 thru C8500) ....................................................................................................................................................... D-185

Park Brake

Park Brake (Family 2) .......................................................................................................................................................... D-190

Park Brake (Family 3) .......................................................................................................................................................... D-191

SIR ..............................................................................................................................................................................................D-192

Rear Air Suspension .................................................................................................................................................................D-194

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Index (continued)

SUBSYSTEM ELECTRICAL SCHEMATICS (continued)

Serial Data

Data Link Connector ........................................................................................................................................................... D-195

Serial Data Link (Class 2) .................................................................................................................................................... D-198

Serial Data Gateway ............................................................................................................................................................ D-199

Diagnostic Tool Connector .................................................................................................................................................. D-200

J1939 - (L18) 8.1L V8 GMPT VORTEC® - Gas – (LF8) 7.8L L6 Isuzu 6H - Diesel –

(LF6) 7.2L L6 Caterpillar® C7 - Diesel .........................................................................................................................D-201

HVAC Heater Only ......................................................................................................................................................................... D-208

Active - (LMM) 6.6L V8 Isuzu DURAMAX® - Diesel ............................................................................................................. D-209

Passive - (LF8) 7.8L L6 Isuzu 6H - Diesel ........................................................................................................................... D-211

Rear Heater - Crew Cab ...................................................................................................................................................... D-213

Rear Defogger - Crew Cab..................................................................................................................................................D-214

Chime ........................................................................................................................................................................................D-215

Displays

Instrument Panel Cluster (IPC) ............................................................................................................................................ D-216

Tell Tale Module & Gauges .................................................................................................................................................. D-218

Windshield Wiper/Washer ........................................................................................................................................................D-220

Headlamps

Dual Headlamps .................................................................................................................................................................. D-221

Quad Headlamps (Family 2) ................................................................................................................................................ D-222

Daytime Running Lamps (DRL) ................................................................................................................................................D-223

Exterior Lighting ........................................................................................................................................................................D-224

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Index (continued)

SUBSYSTEM ELECTRICAL SCHEMATICS (continued)

Interior Lighting .........................................................................................................................................................................D-230

Truck/Trailer Wiring

Truck/Trailer Wiring (Family 2) ............................................................................................................................................. D-235

Truck/Trailer Wiring (Family 3) ............................................................................................................................................. D-236

Tractor Wiring (Family 3) ...................................................................................................................................................... D-238

Body Builder Connector ...........................................................................................................................................................D-240

School Bus Upfitter ...................................................................................................................................................................D-241

Power Windows Power Windows - Regular Cab ........................................................................................................................................... D-242

Power Windows - Crew Cab ............................................................................................................................................... D-243

Power Door Locks ....................................................................................................................................................................D-245

Remote Keyless Entry (RKE) ....................................................................................................................................................D-247

Power Mirrors ............................................................................................................................................................................D-248

Entertainment

Radio ................................................................................................................................................................................... D-250

Speakers ............................................................................................................................................................................. D-251

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UPFITTER’S QUICK REFERENCE

Connector Terminal Contacts

Delphi ...................................................................................................................................................................................... E-1

Bosch ...................................................................................................................................................................................... E-1

Sumitomo ................................................................................................................................................................................ E-1

Power Take-off (PTO)

Description and Operation ...................................................................................................................................................... E-2

Diagnostic Checks

Diagnostic Starting Point – Power Take-Off (PTO) .......................................................................................................... E-7

Symptoms – Power Take-Off (PTO) ................................................................................................................................ E-7

Power Take-off (PTO) Does Not Engage ......................................................................................................................... E-9

Engine RPM Does Not Increase With Power Take-Off (PTO) Engaged ........................................................................ E-13

Power Take-Off (PTO) Indicator Inoperative ................................................................................................................. E-15

Schematics

L18–LMM–LF8 .............................................................................................................................................................. E-17

LF6 ................................................................................................................................................................................ E-19

Vehicle – Diagnostic System Check .......................................................................................................................................... E-20 Checking Aftermarket Accessories .......................................................................................................................................... E-22

Wiring Repairs

Testing for Intermittent Conditions and Poor Connections ................................................................................................... E-23

Flat Wire Repairs ................................................................................................................................................................... E-27

GMLAN Wiring Repairs ......................................................................................................................................................... E-28

High Temperature Wiring Repairs ......................................................................................................................................... E-31

Heated Oxygen Sensor Wiring Repairs................................................................................................................................. E-35

Upfitter’s Quick Reference Index

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UPFITTER’S QUICK REFERENCE (continued)

Wiring Repairs (continued) Splicing Copper Wire Using Splice Clips .............................................................................................................................. E-36

Splicing Copper Wire Using Splice Sleeves.......................................................................................................................... E-38

Splicing Twisted or Shielded Cable ....................................................................................................................................... E-40

Splicing Inline Harness Diodes ............................................................................................................................................. E-41

SIR/SRS Wiring Repairs ........................................................................................................................................................ E-42

Lighting

Separating Stop from Turn Signal Lamps ............................................................................................................................. E-46

Diesel Emissions

CARB Idle Shutdown Requirements (California Only)........................................................................................................... E-48

Engine Idle Control System Description

Idle Shutdown ....................................................................................................................................................................... E-49

Upfitter’s Quick Reference Index (continued)

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Overview

ORGANIZATION

The 2009 Medium Duty C-Series Electrical Body Builder Manual is organized as follows:

A. System Operation – Description of how things function

B. Components (including Electronic Modules) – Location and Pinouts

C. Connectors – Location and Pinouts

D. Subsystem Schematics – Detailed wiring and electrical schematic information

E. Upfitter’s Quick Reference – Additional information on existing and new features, as well as Frequently Asked Questions

WHAT’S NEW FOR THE 2009 MEDIUM DUTY C-SERIES

Major changes for the 2009 Model Year include:

• The 8.1L (L18) gas engine will no longer be available on C6500/C7500/C8500 models starting in December 2008

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NAVIGATION/VIEWING

The Index items are linked to the actual page. Click on the item of interest and you’ll go to the corresponding page.The tab at the top of the page has other options available. From left to right:

• Print

• Save

• Previous page

• Next Page

• Page Number (in box)

• Zoom – Decrease Magnification

• Zoom – Increase Magnification

• Percentage Option (with drop-down menu)

• Scroll Through Pages

• Step Through Pages (one at a time)

• Find (with drop down menu)

PRINTING

Specific pages can be printed out. Be careful to select a print range or “current page” otherwise all 411 pages will be printed out.

The information provided in this document is believed to be accurate at time of publication.General Motors reserves the right to change the information contained in this document at any time.

Overview (cont’d)

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System Operating Instructions

UF3 – Fast Idle Option – Electrical Requirements

OUTLINE• Overview• Engine/Transmission Variations• Factory Installed Equipment• Upfitter Installed Equipment• Operation• Appendix

Reprogramming the PCM / Using the Tech 2 Scan Tool – (Attachment 1)Illustrations

IP Switch Panel (Figure 1)Fast Idle Switch (Figure 2)

A-3

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A-4

OVERVIEW

The UF3 fast idle option allows the operator to push a switch and raise the engine speed to a predetermined Idle RPM value. This featurecan only be used when the vehicle is stationary. Examples of Fast Idle applications are battery charging, idle operation of High ElectricalLoad vehicles, quick warm ups, and improved AC performance.

Scope

The GM (UF3) option described here is the necessary electrical and electronic content to control the engine idle speed. This is not adescription of how to install these features if not ordered as part of the option. Base factory settings and procedures to change the factorysettings are described here. Responsibility for proper and safe operation for any additional equipment remains with the Upfitter.

(PTO) vs. (UF3) Fast Idle

The (PTO) option allows for increased engine speed operation for increased power output to the PTO unit. The (UF3) fast idle option also

allows for increased engine speed but is used for quick warm up, A/C performance, or battery charging. The (PTO) Power Take Off and(UF3) fast idle options are mutually exclusive on the same vehicle with the L18/LLY/LMM/LG4/LF8 engines.

ENGINE/TRANSMISSION VARIATIONS

The 2009 Medium Duty C Series uses 4 engines as shown below:

FACTORY INSTALLED EQUIPMENT

The UF3 fast idle option includes the Fast Idle Switch, the Fast Idle Indicator Lamp and necessary wiring to the ECM for operation.

• Fast Idle Switch - Use to increase Engine speed to a preset value.

• Fast Idle Indicator Lamp – ECM turns on light to indicate operation in the Fast Idle Mode. This indicator is in the switch.

Engine RPO Engine Description Truck Family Available

L18 8.1L V8 GMPT VORTEC® - Gas 2 & 3

LMM 6.6L V8 Isuzu DURAMAX® - Diesel 2

LF8 7.8L L6 Isuzu 6H - Diesel w/2007i Emissions 3LF6 7.2L L6 Caterpillar® - Diesel 3

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UPFITTER INSTALLED EQUIPMENT

No upfitter installed equipment is required to operate the function. Responsibility for proper and safe operation for any additional equipment

remains with the Upfitter.

OPERATION

Description

Vehicles ordered with the UF3 (Fast Idle) option come with a dash mounted switch which allows the user to increase the engine idle speedto a fixed value. The Fast Idle Switch is located to the right of the steering wheel as shown in the illustration (Figure 1). An indicator in theswitch lights to show Fast Idle mode is active.

How To O perate

To enable the Fast Idle, the following conditions must be met:

1. Engine must be running

2. Transmission must be in Park or Neutral

3. Vehicle speed must be less than 5 mph

4. Brake or Clutch must not be depressed.

When the above conditions are met, the operator can activate the Fast Idle mode by pressing the Fast Idle Switch. If the switch is pressed

while the engine is in the Fast Idle mode, the engine will return to normal base idle.

P A G E

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A-6

Engine Calibrations

The factory preset and minimum and maximum programmable speeds are shown in the table below for the

L18/LMM/LF8/LF6 engines:

NOITULOSERTNEMTSUJD A EUL A V MUMI X A MEUL A V MUMINIMSGNITTESTLU A FEDELB A MM A RGORP )MPR( )MPR( )MPR( )MPR( SRETEM A R A P

Maximum Fast Idle Speed 1000

Accelerator Disables Fast Idle 2500 Can’t be set below base 520083

Fast Idle Speed Parameters

0031006

Base Idle Speed 1200 Normal engine idle will override Cannot be set above the maximum 25

if higher than Fast Idle. Fast Idle Speed Parameter

Note: The Values shown in the above chart are accurate at the time of publication but may change in time for various reasons including

running changes made to the ECM, Calibrations, Tech 2 programming, software. Etc.

Caterpillar LF6 Engine

Base Fast Idle is set at the Factory to 1000 RPM. Fast Idle can be programmed from 700 to 2640 RPM.

Adjusting the Factory Preset Engine Speed

The Above parameters can be reprogrammed with a GM Tech 2 Diagnostic scan tool for the L18/LMM/LF8/LF6 engines.

The Tech 2 connects to the Data Link Connector under the dash. Information regarding reprogramming with the Tech 2 tool can

(Attachment 1). Reprogramming the LG5 engine requires a Caterpillar electronic service tool.

APPENDIX

Reprogramming the PCM / Using the Tech 2 Scan Tool(Attachment 1)

IllustrationsLocation of Fast Idle Switch and Indicator – (Figure 1)Switch Detail – (Figure 2)

be found in the Appendix.

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P A G E

System Operating Instructions

PTO – Power Take Off Option – Electrical Requirements

OUTLINE• Overview• Engine/Transmission Variations• Vocation/Modes• Factory Installed Equipment• Upfitter Installed Equipment• Operation *

Stationary Preset ModeStationary Variable ModeMobile Variable ModePTO Engine Shutdown

Remote Operation• Appendix

Reprogramming the PCM / Using the Tech 2 Scan Tool – (Attachment 1)Illustrations

Location of PTO Switch and Indicator – (Figure 1)PTO Switch Detail – (Figure 3)

Note: *Caterpillar has different programming capability. See your dealer for more information.

A-7

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P A G E

OVERVIEW

A Power Take Off (PTO) is a gearbox or mechanical device used to transmit mechanical power from the powertrain, through gears or atransmission, to another mechanical or hydraulic device. Examples of PTO applications are: salt spreaders, refuse equipment, plows,pumps, drills, lifts, wrecker equipment, dump bodies, fire/rescue equipment, etc.

PTO Advantages

• PTO’s are inexpensive, convenient, safe and reliable.

• PTO’s bolt on to the transmission, engine, transfer case or can be incorporated into the accessory belt drive system.

• PTO’s eliminate the need for a complex array of levers, controllers, electric motors, etc., which would be required to duplicatethe operation of a PTO.

Scope

The PTO unit itself is installed by the Upfitter or Specialty Vehicle Assembler on the vehicle. The GM (PTO) option described here is thenecessary electrical and electronic content to control the PTO unit. Responsibility for proper and safe operation remains with the Upfitter.Other PTO related RPO’s such as V66 (mechanical provisions for Front PTO) are not addressed here.

(PTO) vs. (UF3) Fast Idle

The (PTO) option allows for increased engine speed operation for increased power output to the PTO unit. The (UF3) fast idle option alsoallows for increased engine speed but is used for quick warm up, A/C performance, or battery charging. The (PTO) Power Take Off and(UF3) fast idle options are mutually exclusive on the same vehicle with the L18/LMM/LF8/LF6 engines.

A-8

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ENGINE/TRANSMISSION VARIATIONS

The 2009 Medium Duty C Series uses 6 engines as shown below:

Many transmissions are available on the 2009 Medium Duty C Series. 13 manual and six automatics are available on Family 3 trucks alone.The Caterpillar engine and some Allison transmissions have dedicated PTO connectors that interface with their control modules. The EngineController and Transmission Controller communicate with each other on a high-speed serial data link. The PTO functions are interfaced tothe ECM on 2009 Medium Duty C Series to reduce variation in wiring and function. The LF6 Caterpillar engine requires different PTO wiring

from the other engine applications but functions in a similar manner. Specific wiring is supplied with the PTO option.

VOCATION/MODES

The primary difference in PTO operation is whether the vehicle is stationary or moving. Stationary operation can have either preset orvariable PTO speeds. Some examples of modes and vocations are:

• Stationary Preset – Three preset high idle speeds – Refuse & Wrecker equipment, Fire truck pumpers,

• Stationary Variable – Variable high idle speeds - Drills, Lifts,

• Mobile Variable – Allows variable PTO speeds while the vehicle is moving – Salt Spreaders, Plows, Street Cleaners.

Note: The ECM can be programmed to only one of these modes at any given time. Caterpillar has different programming capability. Seeyour dealer for more information.

Engine RPO Engine Description Truck Family Available

L18 8.1L V8 GMPT VORTEC® - Gas 2 & 3

LMM 6.6L V8 Isuzu DURAMAX® - Diesel 2

LF8 7.8L L6 Isuzu 6H - Diesel w/2007i Emissions 3

LF6 7.2L L6 Caterpillar® - Diesel 3

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FACTORY INSTALLED EQUIPMENT

The PTO option includes the PTO Enable Switch, PTO Relay, K34 Cruise Control Switch, Upfitter Connector to allow optional Upfitterinstalled switches, and necessary wiring.

• PTO Enable Switch – Located on Dash

• PTO Relay – Turned on by ECM, Provides power for Engage Switch and Load Solenoid.

• K34 Cruise Control Switch – Steering column mounted - use to adjust idle speeds under PTO operation.

• Upfitter Connector – allows interconnection of optional Upfitter installed switches.

UPFITTER INSTALLED EQUIPMENT

Optional Upfitter installed equipment includes Remote PTO Up / Down Switches, PTO Load Engage Switch, PTO Load Solenoid, andRemote Kill Switch. All of these devices interface with the Upfitter Connector.

• Remote PTO Up / Down Switches – Same function as Cruise Control Switches, allows operation outside of Cab for Stationary PTOapplications.

• PTO Load Engage Switch – Allows for positive action feedback to ECM for before idle speed is increased. A 5 sec (calibrated) delayoccurs without this feedback.

Note: The Caterpillar ECM does not provide a feedback for PTO operation.

• PTO Load Solenoid – Causes PTO engagement if so equipped.

• Remote Kill Switch – This Normally Closed Switch allows the operator to stop the engine for remote Applications.

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OPERATION

Description

The PTO RPO is an option that allows the user to raise the engine speed through the use of designated switches and ECM programming.The ECM can be programmed to one of the following three PTO modes:

• Stationary Preset mode – Three preset high idle speeds. Vehicle must be stationary.

• Stationary Variable mode – Variable high idle speeds. Vehicle must be stationary.

• Mobile Variable mode – Allows variable PTO speeds while vehicle is moving.

These PTO modes are addressed separately and in detail in the following pages.Please note the ECM can be programmed to only one of the three modes at any one time.

PTO Switches

Vehicles ordered with the PTO option come with an IP mounted switch which allows the user to enable the function. The PTO Switch is locatedto the right of the steering wheel as shown in the illustration (Figure 1 & Figure 3). An indicator in the switch lights to show PTO mode isactive. The engine speed can then be changed with either the cruise control switches or upfitter installed remote PTO switches. CruiseControl Switches come with the PTO option on the 2009 Medium Duty C Series. The following chart shows how the switches operate.

PTO SWITCH CONVERSION CHART

noitcnuFnoitarepOhctiwSOTPetomeRnoitarepOhctiwSesiurC / wOTP

elbanEhctiwSesiurC A / NffO / nOesiurC

elbanEOTP A / NelbanEOTP

MPRrewoLnwoDOTPTES

MPResiaRpUOTPSER

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Stationary Preset Mode

Description

The Stationary Preset Mode allows the user to select from three high idle speeds which are programmed in the ECM. The user can togglebetween three preset speeds using the SET or RES switches or the Remote PTO Switches.

How To Operate

Prior to enabling the Stationary PTO Mode, the following conditions must be met:

1. Engine must be running.

2. Transmission must be in Park or Neutral.

3. Vehicle speed must be less than 5 mph.

4. Brake or Clutch must not be depressed.

When the above conditions are met, the operator can activate the Stationary PTO by the following sequence:

1. Set the Park Brake.

2. Set the Cruise On/Off Switch to the On position – L18 only.

3. Set PTO Enable Switch to On position.

Upon Completion of the above steps, the PTO Stationary Preset Mode will be enabled and the engine speed will increase to the PTO Base

Idle Speed. Toggling the SET and RESume switches will cause the engine RPM to change from normal to either the PTO Preset #1 or PTOPreset #2 speed depending on which switch is pressed first.

Note: LMM/LF8 – ECM enables PTO relay with switch activation. Once on, the ECM won’t turn the relay off until the switch is turned off.

Any changes in the above conditions, including depressing the brake or clutch pedals or shifting an automatic transmission in gear, willdisable the Stationary Preset Mode causing the engine to return to normal base idle.

Note: L18 - Using the Accelerator to raise the engine above the Maximum Fast Idle Speed will result in disabling the PTO StationaryPreset Mode.LMM/LF8 – Engine will be governed to PTO Max engine speed with throttle activation. Engine speed will return to pre-activatio

value after the pedal is released.

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Engine Calibrations

The factory preset and minimum and maximum programmable speeds are shown in the table below for the

NOITULOSERTNEMTSUJD A EUL A V MUMI X A MEUL A V MUMINIMSGNITTESTLU A FEDELB A MM A RGORP )MPR( )MPR( )MPR( )MPR( SRETEM A R A P

Maximum Fast Idle Speed 2500 – L181000

3800 – L18 Accelerator Disables Fast Idle 2200 – LMM/LF8

Can’t be set below base2200 – LMM/LF8

50

Fast Idle Speed Parameters

6001300 – L18

1400 – LMM/LF8 50

Cannot be set above the maximumFast Idle Speed Parameter

1000

05deepSeldItsaFmumixaM

1000Can’t be set below base 05deepSeldItsaFmumixaM

Fast Idle Speed Parameters

05deepSeldItsaFmumixaM006

Note: The Values shown in the above chart are accurate at the time of publication but may change in time for various reasons includingrunning changes made to the ECM, Calibrations, Tech 2 programming, software. Etc.

Caterpillar LF6 Engine

PTO Engine RPM Set Speed is factory set at 1200 rpm. PTO Engine RPM Set Speed can be programmed between 700 and 2640 rpm.

Adjusting the Factor y Preset Engine Speed

The Above parameters can be reprogrammed with a GM Tech 2 Diagnostic scan tool for the L18/LMM/LF6/LF8 engines.

The Tech 2 connects to the Data Link Connector under the dash. Information regarding reprogramming with the Tech 2 tool can

(Attachment 1) . Reprogramming the LF6 engine requires a Caterpillar electronic service tool.

A-13 P A G E

L18/LMM/LF8 engines:

be found in the Appendix

1200 – L18 850 – LMM1000 – LF8

1200 – L18

1250 – LMM1400 – LF8

1000 – LMM /LF8

LMM/LF8

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Adjusting the Factor y Preset Engine Speed

The Above parameters can be reprogrammed with a GM Tech 2 Diagnostic scan tool for the L18/LMM/LF8 engines.

The Tech 2 connects to the Data Link Connector under the dash. Information regarding reprogramming with the Tech 2 tool(Attachment 1). Reprogramming the LG5 engine requires a Caterpillar electronic service tool.

Any changes in the above conditions, including depressing the brake or clutch pedals or shifting an automatic transmission in gear, willdisable the Stationary Variable Preset Mode causing the engine to return to normal base idle. Using the Accelerator to raise the engineabove the Maximum Fast Idle Speed will result in disabling the PTO Stationary Variable Mode.

Mobile Variable Mode

Description

The PTO Mobile Mode allows the driver to maintain a desired engine speed (not vehicle speed) while the vehicle is moving. This feature is

available with both manual and automatic transmissions. The engine speed must be greater than the PTO Base Fast Idle Speed and lowerthan the Maximum Fast Idle Speed. The Vehicle speed must be between the Minimum and Maximum Vehicle Speed Values.

How To O perate

To engage the PTO Mobile Variable Mode, the following conditions must be met in the following order:

1. Engine must be running

2. Transmission must be in gear.

3. Vehicle speed must be between the Minimum and Maximum Vehicle Speeds

4. Brake or Clutch must not be depressed.

5. PTO Enable Switch must be set to the On position

When the above conditions are met, the operator can activate the Mobile Variable mode by the following sequence:

7. Depress the Accelerator Pedal to obtain the desired engine speed.

8. Press the SET button to hold engine at the desired high idle speed.

The SET and RES switches can then be used to adjust the engine speed within the Maximum and Minimum RPM values shown in the Engine

calibration table (Table B). The adjustment increments are 25 RPM (L18/LF8), 100 RPM (LMM).

A-16 P A G E

can be found in the Appendix

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P A G E

PTO – MOBILE VARIABLE MODE FUNCTION CHART

SERTESHCTIWS

decrements and will maintain the new engine speed value. Engine increments and will maintain the new engine speed value. Engine

PRESSING speed can be decreased down to the engine base idle speed value. speed can increase up to the maximum fast idle speed value. IfONCE If engine speed is at this value, all SET inputs will be ignored. If the engine speed is at this value, all RES inputs will be ignored. If the

vehicle reaches the Minimum Vehicle Speed Value, PTO mode will vehicle reaches the Maximum Vehicle Speed Value, PTO mode will.degagnesideb.degagnesideb

Decelerates engine down to the engine base idle speed. Increases engine speed up to the maximum fast idle speed value.HELD If the vehicle reaches the Minimum Vehicle Speed Value, If the vehicle reaches the Maximum Vehicle Speed Value,

.degagnesideblliwedomOTP.degagnesideblliwedomOTP

Note: If the Stationary Variable Mode is disabled (i.e., brake depressed), it may be re-enabled by pressing the RES switch. This will causethe engine to resume the speed it was prior to disabling.

TABLE “B” — Engine Calibrations

The factory preset and minimum and maximum programmable speeds are shown in the table below for the L18/LMM/LF8 engines:

NOITULOSERTNEMTSUJD A EUL A V MUMI X A MEUL A V MUMINIMSGNITTESTLU A FEDELB A MM A RGORP )MPR( )MPR( )MPR( )MPR( SRETEM A R A P

Maximum Fast Idle Speed1000

3800 – L18 25 – L18/LF8 Accelerator Disables Fast Idle

Can’t be set below base2200 – LMM/LF8 100 – LMM

Fast Idle Speed Parameters

600 1300 – L18PTO Base Idle Speed

1200 – L18Normal engine idle will override

1400 – LMM/LF8 25 – L18/LF81000 – LMM/LF8

if higher than Fast Idle.Cannot be set above the maximum 100 – LMM

Fast Idle Speed Parameter

Maximum Vehicle Speed20 – L18 30 – L18

Governing MPH80 – LMM 3 MPH 80 – LMM 175 – LF8 255 – LF8

PTO Relay Engage Max Engine Speed 1000 – LMM/LF8 05deepSeldItsaFmumixaM006

Note: The Values shown in the above chart are accurate at the time of publication but may change in time for various reasons includingrunning changes made to the ECM, Calibrations, Tech 2 programming, software. Etc.

A-17

Engine speed will decrease by 25 RPM (L18/LF8), 100 RPM (LMM) Engine speed will increase by 25 RPM (L18/LF8), 100 RPM (LMM)

2500 – L18

2200 – LMM/LF8

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Caterpillar LF6 Engine

PTO Engine RPM Set Speed is factory set at 1200 rpm. PTO Engine RPM Set Speed can be programmed between 700 and 2640 rpm. ThePTO bump rate is 50 RPM.

Adjusting the Factor y Preset Engine Speed

The Above parameters can be reprogrammed with a GM Tech 2 Diagnostic scan tool for the L18/LMM/LF8 engines.

The Tech 2 connects to the Data Link Connector under the dash. Information regarding reprogramming with the Tech 2

(Attachment 1). Reprogramming the LF6 engine requires a Caterpillar electronic service tool.

PTO Engine Shutdown

Description

The PTO option includes provisions for PTO engine fault shutdown. This feature allows the operator to stop the engine while in PTO modewith an aftermarket installed switch. If the truck is not in PTO mode, pressing the switch will have no effect on engine operation. ThePTO Upfitter Connector (located on the right side of the engine compartment near the right wheel) Component legend has been providedfor installation of remote PTO controls. The upfitter can access the PTO engine fault shutdown circuits through this connector. The upfittermust provide the mating connector, wiring, and remoter switches shown on the Upfitter (PTO) Connector. To install this feature see theupfitter provisions schematics. Important. If the PTO engine shutdown feature is to be used, it must be turned on in the ECM. If thisfeature is not turned on it will have no effect on the engine.

The Above parameters can be reprogrammed with a GM Tech 2 Diagnostic scan tool for the L18/LMM/LF8 engines.to the Data Link Connector under the dash. Information regarding reprogramming with the Tech 2 tool can

(Attachment 1). Reprogramming the LF6 engine requires a Caterpillar electronic service tool.

Remote Operation

Description

The PTO Upfitter Connector (located on the right side of the engine compartment near the right wheel) Component legend has beenprovided for installation of remote PTO idle controls. The upfitter can access the PTO high idle circuits through this connector. The upfittermust provide the mating connector, wiring, and remoter switches shown on the Upfitter (PTO) Connector. Two momentary switched arerequired to duplicate the operation of the SET and RESume switches in the cab. The schematics showing the switches can be found on theSubsystem Electrical schematics under Upfitter Provisions. PTO UP switches duplicate the RES switch operation and the PTO Down switchduplicates the SET switch operation. Please note that the PTO high idle must still be enabled from the Cruise On/Off and the PTO

enable switches in the cab.

A-18 P A G E

tool can be found in the Appendix

The Tech 2 connectsbe found in the Appendix

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APPENDIX

Reprogramming the PCM / Using the Tech 2 Scan Tool – (Attachment 1)

IllustrationsLocation Illustrations

IP Switch Panel (Figure 1)PTO Enable Switch – See Component Locations – (Figure 3)Upfitter PTO Connector is shown in the connector and pin-out illustrations

Connector DrawingsUpfitter Provisions Connector are shown in the connector and pin-out illustrations

Circuit Schematic References (Circuit Schematics are shown in the Subsystem Electrical Schematic portion of the Body Builders Manual)Upfitter Provision Connector – L18/LMM/LF8

Upfitter Provision Connector – LF6L18 Gas EngineDuramax 6.6L and 7.8L Diesel EnginesCaterpillar 7.2L Diesel EnginePTO Operation w/Isuzu 7.8L Diesel Engine

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ATTACHMENT 1

REPROGRAMMING THE PCM/ECM FOR FAST IDLE/PTO USING THE TECH 2 SCAN TOOL

The Tech 2 scan tool MUST be used to enable the Fast Idle and PTO options and adjust the factory preset parameters to desired settings.The Tech 2 menu driven device is a hand held scan tool that plugs into the datalink connector located underneath the dash near the driver’sseat. Once the Tech 2 is connected, the following chart will guide the user.

TCELESUNEMTNERRUCPETS

SCITSONG A ID:OFNI A M1

ELCIHE VFOR A EYNOIT A CIFITNEDIELCIHE V2

KCURTYTUDMUIDEMNOIT A CIFITNEDIELCIHE V3

NI A RTREWOP:OFNOITCELESMETSYS4

12LRO4PLNOIT A CIFITNEDIELCIHE V5

L A UN A MROCIT A MOTU A NOIT A CIFITNEDIELCIHE V6

SNOITCNUFL A ICEPS:2FNI A RTREWOP7

SNOITPOOTP:3FSNOITCNUFL A ICEPS8

SNOITPOEGN A HCSGNITTESOTPTNERRUC9

E MENU BELOWESSNOITPOOTP01

TO ADJUST THE MODE OF OPERATION:

The PTO OPTIONS MENU will appear with the selections:

FO: FAST IDLE

Fl: STATIONARY PRESET FAST IDLE

F2: STATIONARY VARIABLE FAST IDLE

F3: MOBILE VARIABLE FAST IDLE

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Once the mode of operation is selected the CURRENT PTO SETTINGS menu will appear with the adjustable parameters for the currentmode.

This screen allows the user to increase or decrease engine RPM values using the INCREASE and DECREASE buttons. If the Engine FaultShutdown feature is selected, the YES or NO buttons will determine if this feature is enabled.

After all the settings are adjusted, the user will press the REPROGRAM button and the CURRENT PTO SETTINGS menu will appear withthe changes. The ignition must be turned off for ten seconds to ensure that the program values are stored in the PCM.

SERVICE CONSIDERATIONS

IMPORTANT: Please be aware that UF3 and PTO high idle settings must be reprogrammed in the event that the PCM is replaced. It maybe advisable to provide the PCM settings information to the customer in case the PCM requires servicing during some pointin the life of the vehicle.

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IP, Switch Trim Plate, Fast Idle and PTO Switch Location (Figure 1)

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Switch – Fast Idle (Figure 2)

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PTO Enable Switch (Figure 3)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

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Exhaust Particulate Filter

The exhaust particulate filter (EPF) captures diesel exhaust gas

particulates, preventing their release into the atmosphere. Thisis accomplished by forcing particulate-laden exhaust (1) througha filter substrate of porous cells, which removes the particu-lates from the exhaust gas. The exhaust gas enters the filter, butbecause every other cell of the filter is capped at the oppositeend, the exhaust particulates cannot exit the cell. Instead, theexhaust gas passes through the porous walls of the cell leavingthe particulates trapped on the cell wall. The cleaned exhaustgas exits the filter through the adjacent cell. The EPF is capableof reducing more than 90 percent of particulate matter (PM).

Diesel Particulate Filter Layout

(1) Exhaust Gas Temperature (EGT) Sensor 2

(2) Differential Pressure Sensor (DPS)

(3) Diesel Oxidation Catalyst (DOC)

(4) Exhaust Particulate Filter (EPF)

(5) Differential Pressure Sensor (DPS) Pressure Lines

(6) Exhaust Gas Temperature (EGT) Sensor 1

Diesel Oxidation Catalyst

The diesel oxidation catalyst (DOC) (7) has two functions. Onefunction is to reduce emissions of non methane hydro-carbons(NMHC) and carbon monoxide (CO), from the exhaust gases.The other function is to help start a regeneration event by con-verting the fuel-rich exhaust gases to heat. The engine controlmodule (ECM) monitors the functionally of the DOC by determin-ing if the exhaust gas temperature (EGT) sensor 1 (1) reachesa predetermined temperature during a regeneration event. The

Diesel Particulate Filter (DPF) System Description

DOC and the exhaust particulate filter (EPF) (6) are downstreamof the turbocharger, and are two separate components under

the vehicle.Differential Pressure Sensor (DPS) and Pressure Lines

The differential pressure sensor (DPS) (3) measures the pressuredifference between the inlet and outlet of the exhaust particu-late filter (EPF). When pressure difference has increased abovea calibrated threshold, a high particulate loading condition isindicated. The ECM will command a regeneration event in or-der to restore the filter. If the pressure differential continues toincrease across the exhaust filter without a regeneration event,the ECM will illuminate an EPF lamp or send a message to the

driver information center (DIC) referring the customer to cleanthe exhaust filter. To clean the exhaust filter the vehicle must bedriven under the conditions necessary for a regeneration to takeplace. If these lamps and messages are ignored, the ECM willeventually illuminate the malfunction indicator lamp (MIL) andrevert to Reduced Engine Power which will require the vehicle tobe serviced.

The DPS sensor provides a voltage signal to the ECM on a sig-nal circuit relative to the pressure differential changes in the EPF.

The ECM converts the signal voltage input to a pressure value.The DPS pressure lines (2) are connected before and after theEPF. To provide the pressure sensor with accurate back pressuremeasurements, the DPS pressure lines should have a continu-ous downward gradient without any sharp bends.

(continues on next page)

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Exhaust Gas Temperature Sensors

The ECM uses two exhaust gas temperature (EGT) sensors to

measure the temperature of the exhaust gases at the inlet andoutlet of the exhaust particulate filter (EPF). The EGT sensors arevariable resistors, when the EGT sensors are cold, the sensorresistance is low, and as the temperature increases, the sen-sor resistance increases. When sensor resistance is high, theECM detects a high voltage on the signal circuit. When sensorresistance is low, the ECM detects a lower voltage on the signalcircuit. Proper EGTs at the inlet and outlet of the EPF are crucialfor proper operation and for initiating the regeneration process. A temperature that is too high in the EPF will cause the EPF sub-

strate to melt or crack. The ECM monitors the temperatures atthe EPF inlet and outlet to regulate EPF temperatures.

Intake Air (IA) Valve

The intake air (IA) valve is located upstream of the intake airheater, and is normally in the open position. The ECM com-mands the valve to close in order to precisely control combus-tion temperature control during exhaust particulate filter (EPF)regeneration. The IA valve will ensure the temperature of theexhaust gas remains in an efficient range under all operatingconditions. The IA valve system uses a position sensor locatedwithin the valve assembly to monitor the position of the valve.The IA valve uses a motor to move the valve to a closed positionand spring tension returns it to the open position. The motor isoperated through Motor Control 1 and 2 circuits.

Diesel Particulate Filter (DPF) System Description (cont’d)

(continues on next page)

Exhaust Cooler

The exhaust system has been designed to reduce exhaust gas

temperatures during regeneration. The exhaust cooler (4) at the endof the tailpipe draws in cooler air as exhaust gases flow throughits openings. The cooler air mixes with the warmer exhaust gas,reducing exhaust gas temperatures at the tailpipe outlet.

Normal Regeneration

Regeneration is the process of removing the captured particu-lates through incineration within the exhaust particulate filer(EPF). Elevated temperatures are created in the diesel oxidationcatalyst (DOC) through a calibrated strategy in the enginecontrol system.

Regeneration occurs when the ECM calculates that the particu-late level in the filter has reached a calibrated threshold using anumber of different factors, including engine run time, distancetraveled, fuel used since the last regeneration, and the exhaustdifferential pressure. In general, the vehicle will need to be op-erating continuously at speeds above 48 km/h (30 mph) forapproximately 20-30 minutes for a full and effective regenera-tion to complete. During regeneration the exhaust gases reachtemperatures above 550°C (1,022°F). The ECM monitors the

EGT sensors during regeneration. If the sensors indicate thatregeneration temperatures are exceeding a calibrated thresh-old, regeneration will be temporally suspended until the sensorsreturn to a normal temperature. If EGT temperatures fall belowa normal calibrated threshold, regeneration will be terminatedand a corresponding DTC should set. If a regeneration event isinterrupted for any reason, it will continue, including the next keycycle, when the conditions are met for regeneration enablement.Normal regeneration is transparent to the customer.

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Diesel Particulate Filter (DPF) System Description (cont’d)

Service Regeneration

Warning: Tailpipe outlet exhaust temperature will be greater

than 300°C (572°F) during service regeneration.To help prevent personal injury or property damage from fire orburns, perform the following:

1. Do not connect any shop exhaust removal hoses to thevehicle’s tailpipe.

2. Park the vehicle outdoors and keep people, other vehicles,and combustible material away during service regeneration.

3. Do not leave the vehicle unattended.

Warning: To avoid extremely elevated exhaust temperatures,inspect and remove any debris or mud build up at theexhaust cooler located at the tailpipe.

Caution: Due to the elevated engine temperatures createdwhile performing this procedure it is imperative tokeep the front of vehicle in an open environment, withthe hood open, away from any walls or buildings. Thiswill ensure proper airflow across the radiator.

A scan tool is an essential tool that is required for service regen-

eration. Commanding a service regeneration is accomplishedusing the output control function. The vehicle will need to beparked outside the facility and away from nearby objects, suchas other vehicles and buildings, due to the elevated exhaustgas temperature at the tail pipe during regeneration. The serviceregeneration can be terminated by applying the brake pedal,commanding service regeneration OFF using the scan tool, ordisconnecting the scan tool from the vehicle.

A manual regeneration can be accomplished by pressuringthe EPF regeneration switch. Refer to Instrument Panel/Center

Console Component Views and Diesel Particulate Filter WarningIndicator Malfunction.

Regeneration Process

A number of engine components are required to function to-gether for the regeneration process to be performed. Thesecomponents are the fuel injectors, turbocharger, IA valve, fuelpressure control, and the intake air heater (IAH).

The regeneration process consists of several stages:

Warming up the diesel oxidation catalyst (DOC) to 350°C (662°F)

by performing the following:• Reducing air flow with the intake air valve

• Increasing or decreasing boost pressure with the turbo- charger, depending on engine load

• Elevating the engine speed

• Reduce fuel rail pressure

• Retard fuel injection timing

• Add late fuel injection pulses. The added fuel is not combusted but is oxidized by the DOC and exhaustparticulate filter (EPF) to create heat.

Ash Loading

Ash is a non-combustible by product from normal oil con-sumption. Low Ash content engine oil (CJ-4 API) is required forvehicles with the exhaust particulate filter (EPF) system. Ashaccumulation in the EPF will eventually cause a restriction inparticulate filter. Regeneration will not burn off the ash, only par-ticulate matter is burned off. An ash loaded EPF will need to beremoved from the vehicle and cleaned or replaced.

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Diesel Particulate Filter (DPF) Regeneration Enable

1. Ignition ON, clear all DTCs with a scan tool.

2. Select DPF Regeneration Enable within the Special Function menu.

3. Select ON.The selection can be confirmed by the DPF Regeneration Reason parameter indicating Device Control.

4. Exit the Special Function Menu. The scan tool can now be removed.

The vehicle will perform an active Regeneration as soon as the engine running conditions are met.

IMPORTANT

The DPF Regeneration Enable is required when specific service procedures have been performed. Do not perform a DPFRegeneration Enable unless instructed to in the Repair Instruction section of the service procedure. After the system repairperform the following to avoid possible damage to the DPF.

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

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Service Regeneration Unsuccessful

The scan tool DPF Regeneration Inhibit reason parameter will

display a reason for not enabling or aborting the DPF serviceregeneration. Refer to the reasons that are displayed and thecorrective action for each reason.

Diesel Particulate Filter (DPF) Service Regeneration (cont’d)

Table 2. Service Regeneration Unsuccessful

DPF Regeneration Param-eters

Unsuccessful Regeneration– Number of CompletedRegenerations Did NotIncrement By One

Corrective Action For AnUnsuccessful Regeneration

DPF RegenerationInhibit Reason

APP – The APP positionsensor indicated over 1percent

Ensure the acceleratorpedal was not appliedduring the service re-

generation. If the acceleratorpedal was not applied,test the acceleratorpedal position (APP)sensor.

BPP Applied – Thebrake pedal positionindicated Applied.

Ensure that the brakepedal was not appliedduring the service re-generation procedure.

If the brake pedal wasnot applied, test the

brake pedal switch.Important: The scantool must remain con-nected to the data com-munication link (DCL)during the entire serviceregeneration procedure.

Device Control – Thescan tool has interrupedservice regeneration. A loss of communica-tion between the scantool and the vehicle has

occured.

• The scan tool Exit orOFF soft key buttonwas depressed.

• Inspect for a poorconnection at DCL.

• Ignition OFF for 90seconds, the DPFtemperature mustbe less than 752ºF(400ºC). Restart the

service regeneration.

Table 2. Service Regeneration Unsuccessful (cont’d)

DPF RegenerationParameters

Unsuccessful Regeneration– Number of Completed

Regenerations Did NotIncrement By One

Corrective Action For An Unsuc-cessful Regeneration

DPF RegenerationInhibit Reason

DPF Temperature –DPF service regenera-tion temperatures areless than a calibratedthreshold.

• Observe the DTC informa-tion.

• Test for a degraded dieseloxidation catalyst (DOC).

• Test for a skewed exhausttemperature sensor, EGTsensor 1.

EGT 1 High – EGTsensor 1 temperaturerange was greater than

a calibrated thresholdfor greater than 1 sec.

Replace the DPF and per-form the DPF Reset or ForReplace The DPF with a

scan tool.

EGT 2 High – EGTsensor 2 temperaturerange was greater thana calibrated thresholdfor greater than 1 sec.

Replace the DPF and per-form the DPF Reset or ForReplace The DPF with ascan tool.

Ignition Voltage –battery voltage wasless than 10 volts.

Test the battery and chargingsystem for proper opration.

None Refer to the DPF Regenera-tion Status parameter.

Not in Park – Trans-mission gear selectoris not in Park.

Ensure that the transmis-sion gear selector remainedin Park during the ServiceRegeneration procedure.

If the gear selector re-mained in the Park position,test the transmission rangeswitch and circuits.

DPF RegenerationStatus

Required or Active The DPF may be excessivelyrestricted. Replace the DPFand perform the DPF ResetFor replace the DPF with a

scan tool.

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6.6L (LMM) Diesel Exhaust Component Surface Temperatures

Note 1: Shown above are typical maximum exhaust component surface temperatures. The actual temperatures may varybased on ambient temperature, operating conditions, and body applications.

Note 2: The Diesel Oxidation Catalyst (DOC) and Diesel Particulate Filter (DPF) are emission control devices and cannotbe modified or re-positioned.

Note 3: For LMM equipped vehicles with RPO N1B (Side Exit Tailpipe) or RPO N12 (Rear Exit Tailpipe), the Body Builder/ Upfitter is responsible for the required installation of the GM diesel exhaust gas cooler at the end of the tailpipe.

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E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

B-1

Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

ETC- ELECTRONICTHROTTLECONTROL

PRELIM

L18 : GMPT 8.1L V8 GAS

DLC- DATALINKCONNECTOR

TCS- TRACTIONCONTROL SYSTEMTTM - TELL TALEMODULE

IPC- INSTRUMENT PANEL CLUSTERCLASS-2 FAMILY VALUES:

OF

DESCRIPTION

JE3 : HYDRAULICBRAKESPAGE NO.

SDM - SENSING & DIAGNOSTICSMODULE

RADIO - RADIO MODULE

L18 : GMPT 8.1L V8 GAS

LG5 : CATERPILLAR7.2L L6 DIESEL

HVAC- HVACMODULE

CHIME- CHIMEMODULE

DTC- DIAGNOSTICTOOL CONNECTOR

LG4 : DURAMAX7800 7.8L L6 DIESEL

TCM - TRANSMISSIONCONTROL MODULE

MK8/MK9/MKO/MLO/MS9/MUT/MM8 : MANUAL TRANS

PANEL

RELEASE LEVEL EDU- ELECTRONICDRIVERUNIT

RFA- REMOTEFUNCTIONACTUATOR

LCT - LIGHT COMMERCIAL TRANS

ML6 : MANUAL TRANS

II

DATE LESCR

FAMILY

FAMILY

ECU- ENGINECONTROL UNIT - L6

MX4/MTW: LCT 2000/2400 AUTO TRANSWIRE

DRL - DAYTIMERUNNING LAMPS

II:

EBC- ELECTRONICBRAKECONTROLLB7 : DURAMAX6600 6.6L V8 DIESELM74/MTW: LCT 1000/2400 AUTO TRANS

J1939

PCM - POWERTRAINCONTROL MODULE- V8

PROPOSAL

MNK/MNZ/MP8/MTP: MD AUTO TRANS

PPS- PEDAL POSITIONSENSOR

JE4 : AIRBRAKESJE3 : HYDRAULICBRAKES

WTEC- TCM FORMD TRANS

SDG - SERIAL DATAGATEWAY

III

FAMILYIII:

FAMILYGM Proprietary M69/MM7/MPU/MSC/MSG/MT3 : MANUAL TRANSLAST CHANGEDBY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

7

8

ECU ISZ LG4

7

6

12

18

BODY BUILDER CONNECTOR

CHIME/RADIO

EBC AIR/TCS

18

4

24

25

25

3

14510

LOCATION LEGEND

19

MAXI FUSE CTR.

2

1

TRANS OPTION CONNECTOR

PTO UPFITTER CONNECTOR

TRAILER CONNECTOR FAM 3

24

IP DISTRIBUTION/RELAY CTR.

4

3

2

13

IP DISTRIBUTION CTR.

UNDERHOOD DISTRIBUTION CTR.

1

23

13

14

EDU ISZ LB7

9

10

11

12

ETC/PPS

IPC

HVAC

PCM/LCT TCM/WTEC TCM

23

GROUND BLOCK

16

21

20

11

9

8

15

16

15

17

SDM

RFA

TRAILER CONNECTOR FAM 2

17

19

20

TTM

21

22

ECU ISZ LB7

ECU CAT. LG522

DRL

EBC HYD./TCS

5

6

X

X

1a(REFERENCE)MAJOR MODULE

LOCATIONS

MAJORMODULELOCATIONS

0177

h22m_ref_modulessheet1 710__seludom_fer_m22h / KROWDEVI$citamehcs

9:06:20 am

Wednesday, July 18, 200103 2003 M. D. CSeriesPROJECT

Reference0 2003 Medium Duty C SeriesX

1

PILOTX

PROTO

11

N/A A19OC00

Electrical Component Legend

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E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

8

5

1B

BATT NEG

S2

12B

1A3D

7B

4A

6

11

4B 10

2A

9

2B

3C

S1

7A

12A3 A 3 B

Ground Zones

001PILOT B - INITIAL CREATION000560 00ES12GJ3021SE00JG0 3 5 60 0 00 S ta ck ed Gnd Block Conn wi th S2 001

Panel Set: 1

REFERENCE ONLY

B1

seireSCytuDmuideM3002toliP

Ground Zones2 00 3 M . D. C S er ie s X03

Thursday, September 21, 2000

4:14:11 pm

$IVEDWORK/h22009a__003schematic sh eet1h22009a

2003

Ground Zones

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E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

B-3

Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

1

Fuse Block – Underhood (Primary) Label

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E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

B-5

Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Fuse Block – Underhood (Primary) Top View

C S C C

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Fuse Block – Underhood (Primary) Bottom View

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Connector Part Information

OEM: 12146281

Description: 86-Way Electrical Center (BK)

Terminal Part Information

Terminal/Tray: See Terminal Repair Kit

Core/Insulation Crimp: See Terminal Repair Kit

Release Tool/Test Probe: See Terminal Repair Kit

Pin Wire Color Circuit No. Function

A1

PK 339 Ignition 1 Voltage (LF8/LF6)

D-GN/WH 465Fuel Pump Relay Control -

Primary (L18/LMM)

A3

OG 1640Battery Positive Voltage(L18/LMM)

OG 1440Fuel Injection Control

(LF8/LF6)

A4

RD 1042Battery Positive Voltage

(LMM)

PK 439Ignition 1 Voltage

(w/o LMM)

A6 RD 1042 Battery Positive Voltage

A7 PU 806 Crank Voltage

A9 RD 242 Battery Positive Voltage

B1

GY 120Fuel Pump Supply Voltage

(L18/LMM)

PK 2677Battery Positive Voltage

(LF8/LF6)

B2 -- -- Not Used

B3 BK 250 Ground (w/o LF6/LF8)

B4 PU 2000 Ignition 1 Relay Output

B5 -- -- Not Used

Fuse Block – Underhood (Primary) Wire Entry

Pin Wire Color Circuit No. Function

B7 PU 6 Starter Solenoid Crank Voltage

B8 -- -- Not Used

B9 YE 447 Starter Relay Coil Control

C1 OG 740 Battery Positive Voltage

C3 OG 740 Battery Positive Voltage

C4 PK 439 Ignition 1 Voltage

C6 RD 1042 Battery Positive Voltage

D1 D-Gn 29 Horn Control

D2 -- -- Not Used

D3 BK 28 Horn Relay Control

D4 PU 2000 Ignition 1 Relay OutputD5 -- -- Not Used

D6 BK 250 Ground

D7

PK 539 Ignition 1 Voltage (LF6)

L-GN 488PTO On Switch - Signal

(L18/LMM)

OG 488Battery Positive Voltage

(LF8)

D9

PK 239 Ignition 1 Voltage (L18/LMM)

WH 2561 PTO Supply Voltage (LF6)

OG 440 Battery Positive Voltage (LF6/LF8)

E7

BK/WH 1120 Ignition 1 Voltage (LF8)

WH 2561 PTO Supply Voltage (L18/LMM)

D-GN/WH 2665 PTO Supply Voltage (LF6)

E8 -- -- Not Used

E9

L-GN 488 PTO On Switch - Signal (LF6)

L-BU 1121 Battery Relay Output - Coil (LF8)

PU 2562 PTO Control (L18/LMM)

F1 RD 1 Battery Positive Voltage

(continued on next page)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Fuse Block – Underhood (Primary) Wire Entry (continued)(continued from previous page)

Pin Wire Color Circuit No. Function

F3

-- 2000 Ignition Voltage Bus (w/o LG5)

PU 2000 Ignition Voltage (LG5)

F5 -- 2000 Ignition Voltage Bus

F9 L-GN 24 Backup Lamp Supply Voltage (A/T)

F11 GY 1524 Backup Lamp Supply Voltage (A/T)

G2 PU 1093Rear Defog Element Supply

Voltage

G4 PK 239 Ignition 1 Voltage

G6 PK 539 Ignition 1 Voltage (w/o LMM)

G8 OG 440 Battery Positive Voltage

G10 -- -- Not Used

G12 -- -- Not Used

H1 -- -- Not Used

H3 PU 2000 Ignition Voltage

H5 PU 2000 Ignition Voltage

H7 RD 1 Battery Positive Voltage

H9PK 539 Ignition 1 Voltage (Allison® MD)

PK 139 Ignition 1 Voltage (Allison® LCT)

H11 PK 139 Ignition 1 Voltage (Allison® MD)

J2 OG 440 Battery Positive Voltage (LF8)

J4 PK 639 Ignition 1 Voltage (w/o LG5)

J6 PK 339 Ignition 1 Voltage

J8 OG 1440 Battery Positive Voltage (w/o L18)

J10 D-Gn 1433Clutch Start Switch Signal

(Allison® MD)

J12YE 1479 A/T Neutral Signal (Allison® MD)

OG 440 Battery Positive Voltage (LMM)

K1 -- -- Not Used

K3 -- -- Not Used

Pin Wire Color Circuit No. Function

K5 -- -- Not Used

K7 -- -- Not Used

K9 BK 250 Ground (LMM)

K11 WH 2368Cooling Fan Clutch Supply

Voltage (LMM)

L2 -- -- Not Used

L4 -- -- Not Used

L6OG 440 Battery Positive Voltage (LMM)

PK 739 Ignition 1 Voltage (L18)

L8 OG 1240 Battery Positive Voltage

L10 BK 250 Ground (Allison® MD)

L12PU 806 Crank Voltage (Allison® MD)

WH/BK 2366 Colling Fan Clutch Control (LMM)

M1 RD 442 Battery Positive Voltage

M2 RD 1642 Battery Positive Voltage

M3 RD 42 Battery Positive Voltage

M4 RD 1042 Battery Positive Voltage

M5 OG 1840 Battery Positive Voltage

M6OG 740 Battery Positive Voltage

OG 740 Battery Positive Voltage

M7OG 1640 Battery Positive Voltage

(L18/LLY/LMM)

OG 1540 Battery Positive Voltage (LG5

M8 OG 1540 Battery Positive Voltage

N1-N8 -- 1 Battery Positive Voltage Bus

P7 -- 1 Battery Positive Voltage Bus

P8 -- 1 Battery Positive Voltage Bus

R7 -- --Battery Positive Voltage (AUX BODY

B+ Upfitter Provision Stud A)

R8 -- --Battery Positive Voltage (AUX BODY

B+ Upfitter Provision Stud B)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Fuse Block – Underhood (Secondary) Label

No. Device Rating Description

1 IGN 1 Fuse 40A Ignition Switch, Starter Relay, Transfer

Case Shift Control Module (NP1)

2 IGN 2 Fuse 50A Ignition 4 Relay

3 IGN 3 Fuse 60A Ignition Switch

4 BAT/HAZ Fuse 60A Fuse Block - I/P5 HDLP Fuse 40A Headlamp Switch, Fuse Block - I/P

6 LIGHTING Fuse 40A Courtesy Fuse, Park Fuse

7 HVAC Fuse 50A Blower Motor Resistor Assembly

(C40/C60)

8

ELEC BRK/

BRKLP Circuit

Breaker

30A

Brake Lamps (C6/C7/C8)

Electronic Brake Control Module

(EBCM) (C4/C5)

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Fuse Block – Underhood (Secondary)

Top View

Fuse Block – Underhood (Secondary)

Bottom View

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Fuse Block – Underhood (Secondary) Wire Entry

Connector Part Information

OEM: 12092231

Description: 16-Way Fuse Block Component (BK)

Terminal Part Information

Terminal/Tray: See Terminal Repair Kit

Core/Insulation Crimp: See Terminal Repair Kit

Release Tool/Test Probe: See Terminal Repair Kit

Pin Wire Color Circuit No. Function

A1 RD 242 Battery Positive Voltage

A2 RD 1242 Battery Positive Voltage

A3 RD 342 Battery Positive Voltage

A4 RD 142 Battery Positive Voltage

A5 RD 1142 Battery Positive Voltage

A6 RD 1342 Battery Positive Voltage

A7 RD 542 Battery Positive Voltage

A8 RD

642 Battery Positive Voltage (C4/C5)

1542Battery Positive Voltage

(RQ2 & U86/RQ3)

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Fuse Block – I/P-1 Label

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Fuse

No.Device Rating Description

1 STOP Fuse/Circuit Breaker 20A Stop Lamp Switch, Trailer StopLamp Switch

2 -- -- Not Used

3

PRK LAMPS

Fuse/Circuit

Breaker

20A Headlamp Switch, Transfer Case Shift

Control Switch (NP1)

4PCM-1 Fuse/

Circuit Breaker15A

Electronic Brake Control Module

(EBCM), Powertrain Control Module(PCM) (L18), Engine Control Module

(ECM) (LG4/LG5/LLY), Throttle ActuatorControl (TAC) Module (L18)

5 AUX WIREFuse/Circuit

Breaker

15A HTD MIR Relay, DRL Module, Upfitter

Connector

6HTR/AC Fuse/

Circuit Breaker20A

Air Temperature Actuator (C40/C60),

Vacuum Pump (w/o L18), HVAC

Control Assembly (C40/C60), Blower

Motor Relay - Auxiliary (C36)

7HAZRD Fuse/

Circuit Breaker25A Turn Signal/Multifunction Switch

8

PWR POST

Fuse/CircuitBreaker

20A

Cigar Lighter (DT4), Controller Area

Network (CAN) Connector, Auxiliary

Power Outlet 1, Auxiliary Power Outlet

2, Data Link Connector (DLC)

Fuse Block – I/P-1 Label Usage

Fuse

No.Device Rating Description

9 CTSY LAMPSFuse/Circuit

Breaker

10A Dome Lamps

10GAUGES Fuse/

Circuit Breaker10A

Remote Control Door Lock Receiver

(RCDLR) (AU0), Headlamp Switch, Day-

time Running Lights (DRL) Relay, Gauge

Center, Driver Information Center (DIC),

Instrument Panel Cluster (IPC)

11STRTR Fuse/

Circuit Breaker10A

Starter Relay, Clutch Start Switch

(M/T), Park/Neutral Position (PNP)

Switch(Allison® LCT), Neutral Start Relay

(Allison® MD), Electronic Brake Control

Module (EBCM)

12 AXLE/4WD Fuse/

Circuit Breaker20A Rear Axle Shift Relay - Two Speed (HPZ)

13TRLR Fuse/

Circuit Breaker20A LT TRN TRLR Relay, RT TRN TRLR Relay

14

RDO/CHIME

Fuse/Circuit

Breaker

15A Radio, Chime Module (UL5/UXZ),Instrument Panel Cluster (IPC)

15DRL Fuse/

Circuit Breaker15A Daytime Running Lights (DRL) Diode

16 AIRBAG Fuse/

Circuit Breaker10A

Inflatable Restraint I/P Module (AK5),

Inflatable Restraint Sensing and

Diagnostic Module (SDM) (AJ3/AK5)

(continued on next page)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Fuse

No.Device Rating Description

17ILLUM Fuse/

Circuit Breaker10A

IPC, Radio, HVAC Control Assembly,

A/T Shift Lever Position Indicator

18BRK Fuse/

Circuit Breaker10A

A/C Compressor Clutch Relay (C60),

High Idle Switch (UF3). Clutch Pedal

Position (CPP) Switch (M/T), ABS

Relay (JE4), Stop Lamp Switch

19

PWR/ACCY

Fuse/Circuit

Breaker

20A

Blower Motor Relay - Auxiliary (C49),

Outside Rearview Mirror - Driver (DB6/

DB7/DB8), Outside Rearview Mirror

- Passenger (DB6/DB7/DB8), Door Lock

Switch - Driver (AU3), Door Lock Switch

- Passenger (AU3), Remote Control Door

Lock Receiver (RCDLR) (AU0)

20ICN - 4 Fuse/

Circuit Breaker20A

Instrument Panel Cluster (IPC), Wind-

shield Wiper Motor, Turn Signal/

Multifunction Switch, IGN-4 Relay

21MKR LTS Fuse/

Circuit Breaker25A MKR LTS Relay

22

TRN/BCK/UP

Fuse/Circuit

Breaker

15A

Reverse Relay (Allison® MD),Backup

Lamp Switch (M/T), Turn Signal/

Multifunction Switch

23 TRANS Fuse/ Circuit Breaker

10A Instrument Panel Cluster (IPC), SDGModule, TCM, ECM, PCM

24

HYD/AIR BRK

Fuse/Circuit

Breaker

10A

Low Air Pressure Switch, Air Brake

Dryer (JE4/JTU), Traction Control Switch

(NW9), Air Suspension Dump Switch

(G40/G45/GSJ)

A-B -- -- Not Used

(continued from previous page)

Fuse Block – I/P-1 Label Usage (continued)

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Fuse Block – I/P-1 Front View

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Fuse Block – I/P-1 Back View

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Fuse Block – I/P-1 Wire Entry

Pin Wire Color Circuit No. Function

G3 OG 340 Battery Positive Voltage

G5 OG 40 Battery Positive Voltage

G7OG 240 Battery Positive Voltage

BN 241 Ignition 3 Voltage (NP1)

H2 -- 3 Ignition 1 Voltage Bus

H4 PK 3 Ignition 1 Voltage

H6 -- 3 Ignition 1 Voltage Bus

H8 -- 3 Ignition 1 Voltage Bus

J1 PK 139 Ignition 1 Voltage

J3 YE 1139 Ignition 1 Voltage

J5 PK 39 Ignition 1 Voltage

J7 PK 439 Ignition 1 Voltage

K2 WH 1390 Off Run Crank Voltage

K4 D-GN 44Instrument Panel Lamps Dimmer

Switch Signal

K6 YE 5 Crank Voltage

K8 OG 300 Ignition 3 Voltage

L1 PK 1020 Off Run Crank Voltage

L3 GY 8Instrument panel Lamp Supply

Voltage 1

L5 PU 806 Crank Voltage

L7 BN 641 Ignition 3 Voltage

M2 -- 300 Ignition 3 Voltage Bus

M4 OG 300 Ignition 3 Voltage

M6 -- 300 Ignition 3 Voltage Bus

M8 -- 300 Ignition 3 Voltage Bus

N1 BN 541 Ignition 3 Voltage

N3 BN 441 Ignition 3 Voltage

N5 BN 241 Ignition 3 Voltage (C6/C7/C8)

N7 GY 141 Ignition 3 Voltage

Connector Part Information

OEM: 12110746

Description: 48-Way Metri-Pack 280 Series (BK)

Terminal Part Information

Terminal/Tray: See Terminal Repair Kit

Core/Insulation Crimp: See Terminal Repair Kit

Release Tool/Test Probe: See Terminal Repair Kit

Pin Wire Color Circuit No. Function

A2-A3 -- -- Not Used

A6-A7 -- -- Not Used

B2 -- 142 Battery Positive Voltage Bus

B4 RD 142 Battery Positive Voltage

B6 -- 142 Battery Positive Voltage Bus

B8 -- 142 Battery Positive Voltage Bus

C1 OG 540 Battery Positive Voltage

C3 OG 640 Battery Positive Voltage

C5 OG 1040 Battery Positive Voltage

C7 OG 140 Battery Positive Voltage

D2 BN 4 Accessory Voltage

D4 -- 142 Battery Positive Voltage Bus

D6 RD 142 Battery Positive Voltage

D8 -- 142 Battery Positive Voltage Bus

E1 YE 43 Accessory Voltage

E3 OG 1140 Battery Positive Voltage

E5 OG 840 Battery Positive Voltage

E7 -- -- Not Used

F2 -- 1142 Battery Positive Voltage Bus

F4 RD 1142 Battery Positive Voltage

F6 -- 1342 Battery Positive Voltage Bus

F8 RD 1342 Battery Positive Voltage

G1 OG 1340 Battery Positive Voltage

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Fuse Block – I/P-2 Label

Device Rating Description

BRK Circuit Breaker 10A Brake Warning Lamp, CHMSL Relay

BRK LAMP Relay -- Trailer Stop Lamps (RQ2/U86/RQ3)

CHMSL Relay --Brake Lamps (C4/C5), Tractor/Trailer Wiring

(C6/C7/C8)

DRL Relay -- Daytime Running Lights (DRL)

ECM Relay -- Engine Control Module (ECM) (w/o LG4)

HTD MIR Relay --

Outside Rearview Mirror - Driver (DB6/DB7/

DB8), Outside Rearview Mirror - Passenger

(DB6/DB7/DB8)

IGN-4 Relay -- Ignition

LT PARK Circuit

Breaker10A Left Parking Lamps

LT REAR TRN/STOP

Circuit Breaker10A Transfer Case Shift Control Switch (NP1)

LT TRN TRLR Relay -- Left Trailer Turn Signal

MKR LTS Relay -- Side Marker and Clearance Lamps

PTO Relay -- Power Take-Off (LG4/PTO)

PWR WNDW

Circuit Breaker25A Power Windows

RDO Circuit

Breaker10A Radio Blunt Cut

RT PARK Circuit

Breaker10A Right Parking Lamps

RT REAR TRN/STOP

Circuit Breaker10A Right Rear Trailer Wiring

RT TRN TRLR

Relay-- Right Trailer Turn Signal

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Fuse Block – I/P-2

Front View

Fuse Block – I/P-2

Back View

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Connector Part Information

OEM: 12129833

Description: 94-Way F Fuse Block (BK)Terminal Part Information

Terminal/Tray: See Terminal Repair Kit

Core/Insulation Crimp: See Terminal Repair Kit

Release Tool/Test Probe: See Terminal Repair Kit

Pin Wire Color Circuit No. Function

A30 -- -- Not Used

A85 -- -- Not Used

A86 -- -- Not Used

A87 -- -- Not Used

A87A -- -- Not Used

B30 -- -- Not Used

B85 -- -- Not Used

B86 -- -- Not Used

B87 -- -- Not Used

B87A -- -- Not Used

C30 -- -- Not Used

C85 -- -- Not Used

C86 -- -- Not Used

C87 -- -- Not Used

C87A -- -- Not Used

D30 YE 318Left Rear Trailer Stop Turn Lamp

Supply Voltage

D85

YE 618Left Rear Turn Signal Lamp

Supply Voltage (C6/C7/C8)

L-BU 14Left Turn Signal Status Signal

(C6/C7/C8)

D86 BK 450 Ground

Pin Wire Color Circuit No. Function

E30 D-GN 319Right Rear Trailer Stop Turn

Lamp Supply Voltage

E85

D-GN 619Right Rear Turn Signal Lamp

Supply Voltage (C4/C5)

D-GN 15Right Turn Signal Status Signal

(C6/C7/C8)

E86 BK 450 Ground

E87 OG 640 Battery Positive Voltage

E87A -- -- Not Used

F30 OG 267 Heated Mirror Supply Voltage

F85 BK 450 Ground

F86 OG 267 Heated Mirror Supply Voltage

F87 BN 641 Ignition 3 Voltage

F87A -- -- Not Used

G30 WH 17 Stop Lamp Supply Voltage

G85 BK 450 Ground

G86 L-BU 1320 Stop Lamp Supply Voltage

G87 YE 895 Left Rear Stop Lamp Supply Voltage

G87A -- -- Not Used

H30 TN 12

Headlamp Low Beam Supply

Voltage

H85 L-GN/BK 592Daytime Running Lights (DRL)

Relay Control

H86 PK 39 Ignition 1 Voltage

H87 YE 634 DRL Diode Supply Voltage

H87A PU 544Headlamp Low Beam Supply

Voltage

J30BK/WH 1120 ECM Power (w/o LF8)

WH 2561 PRO Supply Voltage (LF8/PTO)

(continued on next page)

Fuse Block – I/P-2 Wire Entry

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Pin Wire Color Circuit No. Function

J85

OG 440 Battery Positive Voltage (w/o LF8)

L-GN 488 PRO On Switch - Signal (LF8)

J86L-BU 1121 ECM Power Enable (w/o LF8)

PU 2562 PTO Supply Voltage (LF8)

J87OG 440 Battery Positive Voltage (w/o LF8)

PK 539 Ignition 1 Voltage (LF8)

J87A -- -- Not Used

K30 RD 1411 Trailer Stop Relay-Contact-N.O.

K85 L-BU 1320 Stop Lamp Supply Voltage

K86 BK 450 Ground

K87 RD 1542 Battery Positive Voltage

K87A -- -- Not Used

L30 BK 755 RAP Relay Coil Control

L85 YE 43 Accessory Voltage

L86 BK 450 Ground

L87 RD 1242 Battery Positive Voltage

L87A -- -- Not Used

M30 OG 1340 Battery Positive Voltage

M85 OG/BK 2666 Ignition 1 Voltage

M86 BN/WH 2609Right Rear Park Lamps Supply

Voltage

M87 D-GN 21 Marker Lamps Supply Voltage

M87A -- -- Not Used

N30 PK 2677 Battery Positive Voltage

N85 PK 239 Ignition 1 Voltage

N86 BK 450 Ground

N87 OG 1440 Battery Positive Voltage

N87A -- -- Not Used

Pin Wire Color Circuit No. Function

P30 GY 5481 Ground

P85 BK/WH 1120 Ground

P86 BN 5347 Ground

P87 BK/WH 1120 Ground

P87A -- -- Not Used

R1 BK 755 Battery Positive Voltage

R2 YE 343 Accessory Voltage

R3 -- 755 Battery Positive Voltage Bus

R4 OG 2040 Battery Positive Voltage

R5 BN 9 Park Lamp Supply Voltage

R6 BN 2509Left Rear Park Lamps Supply

Voltage

R7 -- 9 Park Lamp Supply Voltage Bus

R8 BN/WH 2609Right Rear Park Lamps Supply

Voltage

S1-S2 -- -- Not Used

S3 YE 18Left Rear Stop Turn Lamp Supply

Voltage

S4 YE 618Left Rear Turn Signal Lamp

Supply VoltageS5-S6 -- -- Not Used

S7 WH 17 Stop Lamp Switch Signal

S8 L-BU 1320 Stop Lamp Supply Voltage

T1-T2 -- -- Not Used

T3 D-GN 19Right Rear Stop Turn Lamp

Supply Voltage

T4 D-GN 619Right Rear Turn Signal Lamp

Supply Voltage

T5-T8 -- -- Not Used

Fuse Block – I/P-2 Wire Entry (continued)(continued from previous page)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Location Views – I/P Harness w/IP-1 & IP-2

1963782

I/P Harness

(1) Fuse Block - Underhood (Secondary)

(2) Blower Motor Resistor Assembly (C40/C60)

(3) X207 (30 cavities)

(4) Inflatable Restraint I/P Module (AK5)

(5) Fuse Block - I/P - 1

(6) Fuse Block - I/P - 2

(7) Air Brake Pressure Gauge Lamp (JE4), Differential Lock

Switch Lamp (HNB/HPL/HPN), Inter-Axle Differential

Lock Switch Lamp (Tandem Axle), Rear Axle Driver

Control Switch Lamp - Two Speed (HR1/Automatic

Transmission)

(8) HVAC Control Assembly (C40/C60)

(9) Turn Signal/Hazard Flasher Module (10) Daytime Running Lights (DRL) Diode

(11) Instrument Panel Cluster (IPC)

(12) Headlamp Switch

(13) Daytime Running Lights (DRL) Module

(14) JX 203 (12 cavities)

(15) X201 (48 cavities)

(16) Inflatable Restraint Steering Wheel Module (AJ3/AK5)

(17) X211 (22 cavities)

(18) X215 (8 cavities)

(19) X150 (4 cavities)

(20) Accelerator Pedal Position (APP) Sensor

(21) Radio

(22) Serial Data Gateway (SDG)

(23) Driver Information Center (DIC)

(24) Engine Control Module

(25) X126 (40 cavities)

(26) X109 (40 cavities)

(27) X200

(28) X118

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Location Views – I/P-2 Fuse Center

1964775

Lower Right I/P

(1) I/P Harness(2) Fuse Block - I/P - 2

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Turn Signal Flasher

ELECTRICAL MANUAL – 2009 MEDIUM DUTY – C-SERIES – CONVENTIONAL CAB A G E

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Connector

Typical connectorTypical terminal

Typical cable seal

TRUCK SIDE

Packard 280 Series

PPN 15326910 (F)PPN 15304719

PPN 12191221

BODY BUILDER SIDE

PPN 15326915 (M)PPN 15304731

PPN 12191232

Pin Wire Function

Ckt# Color

A 1827 YEL/BLK 128,000 Pulses/Mile*

B 2609 BRN/WHT Right Park Lamp

C 318 YEL Lt Stop/Turn (Fam2), Lt Turn (Fam3)

D 2509 BRN Lt Park Lamp

E 1320 BLU LT Stop

F 641 BRN IGN 3 15A

G 21 GRN DK Marker Lamp 20A

H 350 BLK GND Zone 3B

J TBD – Spare

K 319 GRN DK Rt Stop/Turn (Fam2), Rt Turn (Fam3)

L 24 GRN LT Back Up

M TBD – Spare

SPN 15326915SPN 15304731

SPN 15366065

PPN = Production Part Number

SPN = Service Part Number

*4000 ppm (LF8 and LF6)

12-Way Body Builder Connector

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

3 y l i m a F 2 y l i m a F

Body Builder Connector Location

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

TRUCK SIDE BODY BUILDER SIDEConnector Packard GT 280 SeriesTypical connector 15326935 (M) 15326931 (F)

Typical terminal 15304722 15304710

noitcnuFeriWniP

Ckt # Color

A 24 GRN LT Back Up

B 2609 BRN/WHT Right Park

C 318 YEL Left Turn

D 2509 BRN Left Park

E 1320 BLU LT StopF — — Spare

G — — Spare

H 350 BLK Gnd Zone 3B

J — — Spare

K 319 GRN DK Right Turn

TRUCK SIDE BODY BUILDER SIDEConnector Packard MP 280 SeriesTypical connector 15300027 (F) 15300002Typical terminal 12129493 12129497Typical cable seal 15324980 15324980

noitcnuFeriWniP

Ckt # Color

A 24 GRN LT Back Up

B 350 BLK Gnd Zone B

10-Way Bus Connector (top) / 2-Way Bus Connector (bottom) – Family 2

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Bus Connector Location – Family 2

(continued on next page)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Bus Connector Location – Family 2 (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Connector 80-Way F Micro-Pack 100W Sealed (BU)Typical Connector 12191489 (F)

ColorBLU

Typical Terminal – – –Typical Cable Seal – – –

Pin Wire Color Circuit No. Function

1 BK/WH 351 Ground

2 L-GN 1867 12-Volt Reference

3 PK/BK 1746 Fuel Injector 3 Control

4 L-GN/BK 1745 Fuel Injector 2 Control

5-6 — — Not Used

7 GY 705 5-Volt Reference

8-10 — — Not Used11 L-BU 1876 Knock Sensor 2 Signal

12 D-BU/WH 1869 CKP Sensor Signal

13 OG/BK 463 Requested Torque Signal

14 OG/BK 1061 UART Serial Data (Secondary)

15 D-BU/WH 774 UART Serial Data (Tertiary)

16-18 — — Not Used

19 PK 439 Ignition 1 Voltage

20 OG 440 Battery Positive Voltage

21 YE/BK 1868 Low Reference

22 L-GN 488 PTO On Switch Signal23 BK 470 Low Reference

24 BK/WH 251 Ground

25 — — Not Used

26 TN 1677 HO2S Low Signal - Bank 2 Sensor 1

27 BK/WH 251 Ground

28 — — Not Used

29 TN 1664 HO2S Low Signal - Bank 1 Sensor 1

30 L-GN 1478 Coolant Level Switch Signal

31 D-GN 534 High Idle Switch Signal

8.1L (L18) Powertrain Control Module (PCM) – Connector C-1

(continued on next page)

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E LECTRICAL M ANUAL 2009 M EDIUM DUTY C S ERIES CONVENTIONAL C AB P C 7

Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Pin Wire Color Circuit No. Function

32 BK/WH 771Transmission Range Switch Signal A

(Allison® MD)

33 PU 420TCC Brake Switch/Cruise Control

Release Signal

34 WH 776Transmission Range Switch Signal -

Parity Bit (Allison® MD)

35 BN/WH 379 CPP Switch Signal (Manual Trans.)

36 BK 1744 Fuel Injector 1 Control

37 YE/BK 846 Fuel Injector 6 Control

38 — — Not Used

39 YE 447 Starter Relay Coil Control

40 BK/WH 351 Ground

41 PU 719 Low Reference (Manual Trans.)42 — — Not Used

43 RD/BK 877 Fuel Injector 7 Control

44 L-BU/BK 844 Fuel Injector 4 Control

45-47 — — Not Used

48 GY 597 5-Volt Reference

49-50 — — Not Used

51 D-BU 496 Knock Sensor 1 Signal

52 YE 2522 PTO Engage Signal

53 — — Not Used

54 OG/BK 469 Low Reference55-56 — — Not Used

Pin Wire Color Circuit No. Function

57 OG 440 Battery Positive Voltage

58 D-GN 1049 ECM/PCM/VCM Class 2 Serial Data

59-60 — — Not Used

61 PK/BK 632 Low Reference

62 — — Not Used

63 BK 407 Low Reference

64-65 — — Not Used

66 PU 1666 HO2S High Signal - Bank 2 Sensor 1

67-68 — — Not Used

69 PU/WH 1665 HO2S High Signal - Bank 1 Sensor 1

70 BN 1174 Oil Level Switch Signal

71 L-BU 494 Primary Brake Indicator Control

72 YE 772Transmission Range Switch Signal B

(Allison® MD)

73 BN/WH 633 CMP Sensor Signal

74 YE 410 ECT Sensor Signal

75 PK 1020 Off/Run/Crank Voltage

76 BK/WH 845 Fuel Injector 5 Control

77 D-BU/WH 878 Fuel Injector 8 Control

78 PU 2562 PTO Control

79 — — Not Used

80 GY 720 Low Reference

8.1L (L18) Powertrain Control Module (PCM) – Connector C-1 (continued)

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E LECTRICAL M ANUAL 2009 M EDIUM DUTY C S ERIES CONVENTIONAL C AB P C 8

Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Connector 80-Way F Micro-Pack 100W Sealed (GN)Typical Connector 12191488 (F)

ColorGRN

Typical Terminal – – –Typical Cable Seal – – –

Pin Wire Color Circuit No. Function

1 BK/WH 351 Ground

2 WH 2467Crankshaft Sensor Supply Voltage

(Allison® MD)

3 TN 1465 Fuel Pump Relay Control - Secondary

4 — — Not Used

5 TN/BK 464 Delivered Torque Signal (Allison® MD)

6-7 — — Not Used8 — — Not Used

9 D-GN/WH 465 Fuel Pump Relay Control - Primary

10 WH 121 Engine Speed Signal

11-14 — — Not Used

15 BN 25 Charge Indicator Control

16 — — Not Used

17 D-GN/WH 762 A/C Request Signal

18 — — Not Used

19 GY/BK 1467 Air Shift Switch Signal (Allison® MD)

20 D-GN 2222 Signal Low - Rear— — Not Used

21 L-BU 2221 Signal High - Rear

22-23 — — Not Used

24 — — Not Used

25 TN 472 IAT Sensor Signal

26 PU 2121 IC 1 Control

27 RD 2127 IC 7 Control

28 L-BU/WH 2126 IC 6 Control

29 D-GN/WH 2124 IC 4 Control

8.1L (L18) Powertrain Control Module (PCM) – Connector C-2

(continued on next page)

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E LECTRICAL M ANUAL 2009 M EDIUM DUTY C S ERIES CONVENTIONAL C AB P C 9

Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Pin Wire Color Circuit No. Function

30 — — Not Used

31 YE 492 MAF Sensor Signal32 L-GN 432 MAP Sensor Signal

33 — — Not Used

34 D-GN/WH 428 EVAP Canister Purge Solenoid Control

35-38 — — Not Used

39 RD 631 12-Volt Reference

40 BK/WH 351 Ground

41-42 — — Not Used

43 D-GN/WH 459 A/C Compressor Clutch Relay Control

44 RD 2013 High Idle Indicator Control

45 — — Not Used46 BN/WH 419 MIL Control

47-48 — — Not Used

49 YE/BK 1827 Vehicle Speed Signal

50 D-GN/WH 817 Vehicle Speed Signal

51-53 — — Not Used

54 PU 1589 Fuel Level Sensor Signal - Primary

55 D-GN 603 Low Coolant Indicator Control

56 — — Not Used

Pin Wire Color Circuit No. Function

57 BK 552 Low Reference

58 TN/WH 332 Oil Pressure Sensor Signal59 D-GN 1433 PNP/Clutch Start Switch Signal

60 BN 2129 Low Reference

61 BN/WH 2130 Low Reference

62 GY 773Transmission Range Switch Signal C

(Allison® MD)

63-65 — — Not Used

66 PU/WH 2128 IC 8 Control

67 RD/WH 2122 IC 2 Control

68 D-GN 2125 IC 5 Control

69 L-BU 2123 IC 3 Control

70-71 — — Not Used

72 BK/WH 3213HO2S Heater High Control - Bank 2

Sensor 1

73 D-BU 1936 Fuel Level Sensor Signal - Secondary

74 L-GN 3212HO2S Heater Low Control - Bank 2

Sensor 1

75 GY 23 Generator Field Duty Cycle Signal

76-80 — — Not Used

8.1L (L18) Powertrain Control Module (PCM) – Connector C-2 (continued)

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E LECTRICAL M ANUAL 2009 M EDIUM DUTY C S ERIES CONVENTIONAL C AB P C 0

Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

ECM

7.8L (LF8) Engine Control Module (ECM) – Location

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E LECTRICAL M ANUAL 2009 M EDIUM DUTY C S ERIES CONVENTIONAL C AB P

Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Connector Part Information

OEM: 1 928 404 781

Service: 19149311Description: 96-Way F Bosch (BK)

Terminal Part Information

Terminal/Tray: 1928498135/19

Core/Insulation Crimp:

Pins: 1-3, 7-9, 12, 17-18, 20, 22-23, 26-28, 31-33, 37-41, 43, 45-48,

54-56, 62-64, 67-68, 70-71, 76-82, 93-96 : J/J

Core/Insulation Crimp: Pins: 4-5, 49-53, 74-75 : K/K

Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)

Pin Wire Color Circuit No. Function1 BK/WH 351 Ground

2 BK/WH 351 Ground

3 BK/WH 351 Ground

4 BK/WH 351 Ground

5 BK/WH 351 Ground

6 -- -- Not used

7 BN 1271 Low Reference

8 PU 1272 Low Reference

9 GY 1273 Low Reference

10-11 -- -- Not Used

12 BK 470 Low Reference

13-16 -- -- Not Used

17 YE 2361 SAE J1939 Serial Data Bus+

18 D-GN 2362 SAE J1939 Serial Data Bus-

19 -- -- Not Used

20 D-GN 1049 ECM Class 2 Serial Data A

7.8L (LF8) Engine Control Module (ECM) – Connector C-1

(continued on next page)

Pin Wire Color Circuit No. Function

24-25 -- -- Not Used

26 BK/WH 351 Ground

27 BK/WH 351 Ground

28 WH 121 Engine Speed Signal

29-30 -- -- Not Used

31 D-Bu 1161 APP Sensor 1 Signal

32 L-BU 1162 APP Sensor 2 Signal

33 D-GN 1163 APP Sensor 3 Signal

9 GY 1273 Low Reference

34-36 -- -- Not Used

37 PU 1589 Fuel Level Signal - Primary

38 D-Bu 1936 Fuel Level Signal - Secondary

39 L-BU 2221Signal High - Rear

(Manual Transmission)

40 D-GN 2222Signal Low - Rear

(Manual Transmission)

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E LECTRICAL M ANUAL 2009 M EDIUM DUTY C S ERIES CONVENTIONAL C AB

Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

7.8L (LF8) Engine Control Module (ECM) – Connector C-1 (continued)

Pin Wire Color Circuit No. Function

69 -- -- Not Used

70 L-GN 1478 Coolant Level Switch Signal71 L-GN 24 Backup Lamp Supply Voltage

72-73 -- -- Not Used

74 YE 505 Glow Plug Relay Control

75 PU 2562 PTO Control

76 YE 447 Starter Relay Coil Control

77 PU 2656 Exhaust Brake Relay Control (K40)

78 RD 2013 High Idle Indicator Control

79 D-BU 507 Wait to Start Indicator Control

80 BN/WH 419 MIL Control81 D-GN/WH 817 Vehicle Speed Signal

82 YE/BK 1827 Vehicle Speed Signal

83-92 -- -- Not Used

93 L-GN 488 PTO On Switch-Signal

94 L-BU 494 PTO Engine Kill Switch

95 YE 2522 PTO Engage Signal

96 D-GN 1433 PNP/Clutch Start Switch Signal

Pin Wire Color Circuit No. Function

41 GY 23 Generator Field Duty Cycle Signal

42 -- -- Not Used43 GY/BK 1467 Shift Motor Relay - Control

44 -- -- Not Used

45 D-GN/WH 459 A/C Compressor Clutch

Relay Control

46 GY 397 Cruise Control On Switch Signal

47 GY/BK 87Cruise Control Resume/Accel

Switch Signal

48 D-Bu 84Cruise Control Set/Coast

Switch Signal

49 BK/WH 1120 Ignition 1 Voltage

50 BK/WH 1120 Ignition 1 Voltage

51 OG 440 Battery Positive Voltage

52 L-BU 1121 ECM Power Enable Signal

53 L-BU 1121 ECM Power Enable Signal

54 WH/BK 1164 5-Volt Reference

55 TN 1274 Oil Level Switch Signal

56 YE/BK 1275 5-Volt Reference

57-61 -- -- Not Used

62 L-BU 1320 Stop Lamp Switch Signal

63 PU 420TCC Brake Switch/Cruise

Control Release Signal

64 BN/WH 379CPP Switch Signal

(Manual Transmission)

65-66 -- -- Not Used

67 L-GN 2081Exhaust Brake Request Signal

(K40/NPE)

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E LECTRICAL M ANUAL 2009 M EDIUM DUTY C S ERIES CONVENTIONAL C AB

Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Connector Part Information

OEM: 1 928 404 752

Service: See CatalogDescription: 58-Way F Bosch (BK)

Terminal Part Information

Terminal/Tray: See Terminal Repair Kit

Core/Insulation Crimp: See Terminal Repair Kit

Core/Insulation Crimp: Pins: 4-5, 49-53, 74-75 : K/K

Release Tool/Test Probe: See Terminal Repair Kit

Pin Wire Color Circuit No. Function

1 BK B1Turbocharger Vane Position Con-

trol Solenoid Valve High Control

2 -- -- Not Used

3 WH B3 Injector Positive Voltage Control 1

4 RD B4 Injector Positive Voltage Control 2

5 WH B5 Injector Positive Voltage Control 1

6 RD B6 Injector Positive Voltage Control 2

7 BK/WH B7 EGR Motor U Supply Voltage

8 D-GN B8 EGR Motor V Supply Voltage

9 RD/YE B9 EGR Motor W Supply Voltage

10-11 -- -- Not Used

12 BK B12A Low Reference

13 BK B13A Low Reference

14 BK/YE B14 Low Reference

15 GY B15A Low Reference

16 BK B16A Low Reference

17 WH/BK B17 Ground

18 BK B18A Drain Wire

19 GY B19 Drain Wire

7.8L (LF8) Engine Control Module (ECM) – Connector C-2

(continued on next page)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

7.8L (LF8) Engine Control Module (ECM) – Connector C-2 (continued)

Pin Wire Color Circuit No. Function

40 YE/RD B40 EGR Motor Position W Signal

41 YE B41 Fuel Temperature Sensor Signal42 RD B42 Low Reference

43 RD B43 Fuel Injector 6 Control

44 BK B44 Fuel Injector 4 Control

45 BK/RD B45 Fuel Injector 5 Control

46 RD B46 5-Volt Reference

47 RD B47 5-Volt Reference

48 WH B48 5-Volt Reference

49 WH B49 5-Volt Reference

50 RD B50 5-Volt Reference51 RD B51 5-Volt Reference

52 D-GN B52 Oil level Switch Signal

53-55 -- -- Not Used

56 WH B56 Fuel injector 3 Control

57 D-BU B57 Fuel injector 2 Control

58 YE B58 Fuel injector 1 Control

Pin Wire Color Circuit No. Function

22-23 -- -- Not Used

24 WH B24 MAP Sensor Signal25 WH B25A Fuel Pressure Sensor Signal

26 WH B26 Fuel Pressure Sensor Signal

27 GY B27 Oil Pressure Sensor Signal

28 WH B28 MAF Sensor Signal

29 WH B29 Turbocharger Vane Position Signal

30 WH B30 CMP Sensor Low

31 WH B31 CKP Sensor High

32 BK B32 CKP Sensor Low

33 WH B33 SCV High Signal34 WH B34 SCV High Signal

35 D-BU/WH B35 ECT Sensor Signal

36 -- -- Not Used

37 D-GN/WH B37 IAT Sensor Signal

38 D-BU/RD B38 EGR Motor Position U Signal

39 WH/RD B39 EGR Motor Position V Signal

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009 C S C C

Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

ECM

(1) Engine Control Module (ECM)(2) Transmission Control Module (TCM)

6.6L (LMM) Engine Control Module (ECM) Location

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Connector Part Information

OEM: 15438366

Service: 19149311Description: 96-Way F Mixed Series, Sealed (BK)

Terminal Part Information

Pins: 1-3, 25-27, 48-51, 73-77, 96

Terminal/Tray: 1928498135/19

Core/Insulation Crimp: K/K

Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)

Pins: 4-15, 17, 19-21, 23-24, 28, 30-31, 33-45, 47, 56-67-70, 72, 78-80,

84-86, 88, 91-94

Core/Insulation Crimp: J/J

Pin Wire Color Circuit No. Function

1 OG 5421Injector Postive Voltage Control

Group 1

2 D-BU/WH 878 Fuel Injector 8 Control

3 RD/BK 877 Fuel Injector 7 Control

4 D-BU 2364 Cooling Fan Speed Signal

5 YE 492 MAF Sensor Signal

6 OG/BK 469 Low Reference

7 PU 806 Crank Voltage

8 YE 2522 PTO Engage Signal

9 BN 1174 Oil Level Switch Signal

10 GY/BK 87Cruise Control Resume/Accel

Switch Signal

11 Y/BK 6272 Low Reference

12 GY 2704 5-Volt Reference 3

13 TN 5928 5-Volt Reference 3

14 BN/WH 6136 5-Volt Reference 2

6.6L (LMM) Engine Control Module (ECM) – Connector C-1

(continued on next page)

Pin Wire Color Circuit No. Function

18 -- -- Not Used

19 L-GN 432 MAP Sensor Signal

20 YE 5947Turbocharger Vane Position

Sensor Signal

21 L-BU 1162 APP Sensor 2 Signal

22 -- -- Not Used

23 BK 2755 Low Reference

24 PU/WH 2530Fuel Pressure Regulator

Solenoid Supply Voltage

25 PK 5425Injector Positive Voltage Control

Group 4

26 YE/BK 846 Fuel Injector 6 Control

27 PK/BK 1746 Fuel Injector 3 Control

28 WH/BK 2366 Cooling Fan Clutch Control

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Pin Wire Color Circuit No. Function

29 -- -- Not Used

30 OG/BK 2919 Low Reference31 L-BU 494 PTO Engine Kill Signal

32 -- -- Not Used

33 BK 476 Low Reference

34 D-BU 84Cruise Control Set/Coast Switch

Signal

35 YE/BK 6055 Low Reference

36 BK 2752 Low Reference

37 GY 2702 5-Volt Reference 3

38 TN 1274 5-Volt Reference 239 TN 2917 5-Volt Reference 2

40 PU/WH 6270 5-Volt Reference 1

41 D-BU 6259 5-Volt Reference 1

42 TN 472 IAT Sensor 1 Signal

43 D-BU/WH 6053 Exhaust Pressure Sensor Signal (1)

44 TN/WH 331 Oil Pressure Sensor Signal

45 L-GN 2032Coolant Temperature Sensor

Signal

46 -- -- Not Used

47 BK 2761 Low Reference

48 D-BU 5930Turbocharger Vane Position

Control Solenoid Valve Control

49 PU 5423Injector Positive Voltage Control

Group 3

50 BK/WH 845 Fuel injector 5 Control

51 L-BU 844 Fuel injector 4 Control

52 -- -- Not Used

53 YE/BK 6120 Low Reference

Pin Wire Color Circuit No. Function

54-55 -- -- Not Used

56 D-BU/WH 6265 CMP Sensor Signal57 GY/BK 1694 4WD Low Signal

58 L-GN 1478 Coolant Level Switch Signal

59 D-GN 534 High Idle Switch Signal

60 L-GN 488 PTO On Switch Signal

61 GY 397 Cruise Control On Switch Signal

62 BK 552 Low Reference

63 OG/BK 5929 Low Reference

64 GY 596 5-Volt Reference

65 L-BU 6118 IAT Sensor 2 Signal66 -- -- Not Used

67 BN/WH 5763 EGR Valve Position Signal

68 YE 410 ECT Sensor Signal

69 D-BU 5277Exhaust Gas Temperature

Sensor (1)

70 BN 6782Exhaust Gas Temperature

Sensor (1) Low Reference

71 -- -- No Used

72 YE 2834 Fuel Pressure RegulatorSolenoid Control

73 YE 5422Injector Positive Voltage Control

Group 2

74 BK 1744 Fuel Injector 1 Control

75 L-GN/BK 1745 Fuel injector 2 Control

76 PK 339 Ignition 1 Voltage

77 OG 440 Battery Positive Voltage

78 PU 1272 Low Reference

79 WH/BK 6271 CKP Sensor Signal

6.6L (LMM) Engine Control Module (ECM) – Connector C-1 (continued)

(continued on next page)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Pin Wire Color Circuit No. Function

80 D-GN/WH 2523 A/C Request Signal

81-83 -- -- Not Used84 L-GN 24 Backup Lamp Supply Voltage

85 YE/BK 508 Water In Fuel Indicator Control

86 BK 2753 Low Reference

87 -- -- Not Used

88 BN 6266 Low Reference

89-90 -- -- Not Used

91 D-Gn 485 TP Sensor 1 Signal

92 YE 2918 FRP Sensor Signal

93 L-BU 5377 Exhaust Gas TemperatureSensor 2

94 BN/WH 6783 Low Reference

95 -- -- Not Used

96 WH 5931 Low Reference

6.6L (LMM) Engine Control Module (ECM) – Connector C-1 (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Connector Part Information

OEM: 15462694

Service: 88988935Description: 58-Way F Mixed Series, Sealed (BK)

Terminal Part Information

Pins: 1-6

Terminal/Tray: 1928498059/24

Core/Insulation Crimp: 2/5

Release Tool/Test Probe: J-38125-561/J-35616-35 (VT)

Pins: 33, 46

Terminal/Tray: 1928498135/19

Core/Insulation Crimp: K/K

Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)

Pins: 7, 9, 11-12, 15-26, 28-32, 33, 36, 38-40, 41, 44-45, 47-50, 53-57

Terminal/Tray: 1928498135/19

Core/Insulation Crimp: J/J

Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)

Pin Wire Color Circuit No. Function

1 PK 339 Ignition 1 Voltage

2 BK/WH 351 Ground3 PK 339 Ignition 1 Voltage

4 BK/WH 351 Ground

5 PK 339 Ignition 1 Voltage

6 BK/WH 351 Ground

BN BN 582 TAC Motor Control -2

8 -- -- Not Used

9 D-GN 1049 ECM Class 2 Serial Data

10 -- -- Not Used

6.6L (LMM) Engine Control Module (ECM) – Connector C-2

(continued on next page)

Pin Wire Color Circuit No. Function

15 WH/BK 1164 5-Volt Reference 3

16 D-BU 507 Wait To Start Indicator Control

17 RD 2013 High Idle Indicator Control

18 PU 2562 PTO Control

19 GY 2219 IGN B Relay Control20 YE 581 TAC Motor Control - 1

21 PK 439 Ignition 1 Voltage

22 L-BU 1320 Stop Lamp Supply Voltage

23 BN 25 Charge Indicator Control

24 BN 2524Generator 2 Turn On Signal

(K65)

25 D-GN 603 A/C Low Pressure Switch Signal

26 BN/WH 6141 Low Reference

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

6.6L (LMM) Engine Control Module (ECM) – Connector C-2 (continued)

Pin Wire Color Circuit No. Function

27 -- -- Not Used

28 GY 2365 5-Volt Reference 1

29 BN 1271 Low Reference

30 BN/WH 419 MIL Control

31 D-GN/WH 459 A/C Compressor Clutch

Relay Control

32 YE 447 Starter Relay Coil Control

33 OG/BK 5764 EGR Motor High Control

34 BK 470 Low Reference

35 -- -- Not Used

36 PU 1589Fuel Level Sensor Signal -

Primary

37 -- -- Not Used

38 GY 23Generator Field Duty Cycle

Signal

39 OG/BK 1786Park/Neutral Signal

(Automatic Transmission)

40 PU 420TCC Brake Switch/Cruise

Control Release Signal

41 -- -- Not Used

42 D-GN/WH 817 Vehicle Speed Signal

Pin Wire Color Circuit No. Function

43 -- -- Not Used

44 TN 6106 High Speed GMLAN SerialData Bus-

45 L-BU/BK 2221 Signal High - Rear

46 L-GN/BK 5746 EGR Motor Low Control

47 BN 6062 Low Reference

48 YE 1578 Fuel Temperature Signal

49 D-BU 1161 APP Sensor 1 Signal

50 D-BU 1936Fuel Level Sensor Signal -

Secondary

51-52 -- -- Not Used

53 L-GN 2081Engine Exhaust Brake Switch

Control

54 YE/BK 1827 Vehicle Speed Signal

55 WH 121 Engine Speed Signal

56 PK 1020 Ignition 0 Voltage

57 TN/WH 6105High Speed GMLAN Serial

Data Bus+

58 -- -- Not Used

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Engine Control Module (ECM) – (LF6) C-1

Connector Part Information

OEM: 12 186 584

Service: 12 186 584Description: 70-Way F, Sealed (BK)

Terminal Part Information

Terminal/Tray: See Terminal Repair Kit

Core/Insulation Crimp: See Terminal Repair Kit

Release Tool/Test Probe: See Terminal Repair Kit

Pin Wire Color Circuit No. Function

1-2 -- -- Not Used

3 0.8 BK 470 Low Reference

4 0.8 WH/BK 1164 5-Volt Reference

5 0.8 BK/WH 451 Ground

6 0.8 GY/BK 1467 Shift Motor Relay - Control (HPZ)

7 0.8 L-BU 494 Engine Shut-Off Signal

8 0.8 TN/BK 1921 SAE J1708 Serial Data A

9 Wh/BK 1922 SAE J1708 Serial Data B

10 -- -- Not Used

11 0.8 RD 2013 High Idle Indicator Control

12 BK/WH 1962 Engine Brake Solenoid Feed

13-14 -- -- Not Used

15 0.8 PU 1589 Fuel Level Sensor Signal-Primary

16-18 -- -- Not Used

19 0.8 D-GN/WH 2665 PTO Enable

20-21 -- -- Not Used

22 0.8 BN/WH 379CPP Switch Signal

(Manual Transmission)

23 0.8 L-GN 2081 Exhaust Brake Switch Signal

24-26 -- -- Not Used

(continued on next page)

Pin Wire Color Circuit No. Function

27 0.8 D-BU 1936Fuel Level Sensor Signal

(Secondary)

28 0.8 BN/WH 419 MIL Control

29 -- -- Not Used

30 0.8 BK 750 PTO Lamp Status

31 0.8 YE 447 Starter Relay Coil Control

32 0.8 L-BU 2221Signal High-Rear

(Manual Transmission)

33 0.8 D-GN 2222Signal Low-Rear

(Manual Transmission)

34 0.8 D-GN 2362 SAE J1939 Serial Data Bus -

35 0.8 D-BU 84Cruise Control Set/Coast

Switch Signal

36 0.8 D-GN/WH 817 Vehicle Speed Signal

37 -- -- Not Used

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab (continued on next page)

Engine Control Module (ECM) – (LF6) C-2

Connector Part Information

OEM: 2645732

Service: --

Description: 120-Way F, Sealed (Caterpillar)

Terminal Part Information

Terminal/Tray: See Terminal Repair Kit

Core/Insulation Crimp: See Terminal Repair Kit

Release Tool/Test Probe: See Terminal Repair Kit

Pin Wire Color Circuit No. Function

1-4 -- -- Not Used

5 0.8 OG F793 Intake Air (IA) Heater Relay Power

6-9 -- -- Not Used

10 0.8 OG C801 ARD Air Control Valve Signal

11-14 -- -- Not Used

15 0.8 PK R746Intake Manifold Air Pressure

Sensor Signal

16 0.8 WH U780Manifold Absolute Pressure

(MAP) Sensor Signal

17 0.8 GN G829 Low Reference

18-19 -- -- Not Used

20 0.8 GY C800 ARD Air Control Valve Return

21-23 -- -- Not Used24 0.8 WH X980 Turbo Speed -

25 0.8 BK E963Camshaft Low Reference

Top CAM -

26 0.8 WH G856 Engine Timing Calibration Probe+

27 -- -- Not Used

28 0.8 GY 994 Oil Pressure Sensor Signal

29 -- -- Not Used

30 0.8 PK G833 Low Reference

Pin Wire Color Circuit No. Function

31 -- -- Not Used

32 0.8 BN C815 VNT Actuator Return

33 -- -- Not Used

34 0.8 YE X981 Turbo Speed +

35 0.8 WH E964Camshaft Sensor Signal

Top CAM+

36 0.8 YE G857Engine Timing Calibration

Probe -

37 -- -- Not Used

38 0.8 GN C829 Ambient Air Temperature

Sensor Signal

39-40 -- -- Not Used

41 0.8 BN C803 ARD Fuel Pilot Pressure

Sensor Signal

42 -- -- Not Used

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Engine Control Module (ECM) – (LF6) C-2 (continued)

Pin Wire Color Circuit No. Function

43 0.8 GY U775 CGI Actuator Return

44 0.8 GN C814 VNT Actuator Signal

45 0.8 PK Y735 Purge Air Control Signal

46 0.8 YE E966Camshaft Sensor Signal Bottom

CAM+

47 0.8 BU E965 Low Reference Bottom CAM -

48-50 -- -- Not Used

51 0.8 BU U774 CGI Actuator Signal

52 0.8 GY Y738 Low Reference

53 -- -- Not Used

54 0.8 BU G827 Low Reference

55 0.8 PK T846 ARD Turbo Outlet TemperatureSensor Signal

56 0.8 YE Y741Particulate Trap Intake (PTI) Air

Temperature #1

57 0.8 BN U779 Barometric Pressure Signal

58 -- -- Not Used

59 0.8 PU Y733 ARD Fuel Main Pressure

Control Valve

60 0.8 BU Y734 Low Reference

61 0.8 OG C820 Fuel Pump 2 Driver (AFT)

62 -- -- Not Used

63 0.8 OG Y753 ARD Flame Boundary

Temperature Sensor Signal

64-65 -- -- Not Used

66 1.0 PK Y746Particulate Trap Differential (PTD)

Pressure #1

67-68 -- -- Not Used

69 0.8 YE Y737 ARD Fuel Enable Valve

Pin Wire Color Circuit No. Function

70 0.8 PU U773Mass Air Flow (MAF)

Temperature Sensor Signal

71 -- -- Not Used72 0.8 WH G828 5-Volt Reference

73-75 -- -- Not Used

76 0.8 BU C830 Inlet Air Heater Relay Return

77 0.8 BU C818 Fuel Pump 1 Driver (FORE)

78 -- -- Not Used

79 0.8 YE H807 Purge Air Solenoid Return

80 0.8 BN G826 5-Volt Reference

81 0.8 WH Y748 5-Volt Reference

82 1.0 YE U781 5-Volt Reference

83 0.8 GN Y749 Low Reference

84 0.8 BU 995Coolant Temperature Sensor

Signal

85 0.8 BN G849 Fuel Rail Pressure Sensor Signal

86-87 -- -- Not Used

88 0.8 OG Y751 ARD Ignition Coil Return

89 1.0 BN Y747 ARD Fuel Main Pressure Signal

90 -- -- Not Used

91 0.8 OG Y743 ARD Outlet TemperatureSensor Signal

92 -- -- Not Used

93 1.0 PK U782 Low Reference

94 1.0 GN Y742Particulate Trap Outlet (PTO)

Air Temperature #1

95 0.8 BU C967 Intake MAT Sensor Signal

96-98 -- -- Not Used

99 1.0 OG T860 Injector 5 & 6 Return

(continued on next page)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Pin Wire Color Circuit No. Function

100-103 -- -- Not Used

104 1.0 GY T858 Injector 1 & 2 Return

105 1.0 WH T962 Fuel Injector 6 Control

106 1.0 BN T959 Fuel Injector 3 Control

107 1.0 GN T961 Fuel Injector 5 Control

108 1.0 BU T960 Fuel Injector 4 Control

109 1.0 YE Y750 ARD Ignition Coil

110 -- -- Not Used

Engine Control Module (ECM) – (LF6) C-2 (continued)

Pin Wire Color Circuit No. Function

111 0.8 PU C819 Fuel Pump 1 Return

112 -- -- Not Used

113 0.8 BN C821 Fuel Pump 2 Return

114 -- -- Not Used

115 1.0 WH T859 Injector 3 & 4 Return

116 1.0 PU T957 Fuel Injector 1 Control

117 -- -- Not Used

118 1.0 YE T958 Fuel Injector 2 Control

119-120 -- -- Not Used

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

16-Way Serial Data Link Connector

Connector Packard 150 MP SeriesTypical connector 12110256Typical terminal 12040993

noitcnuFeriWniP

Ckt # Color

1 — — Spare

2 1132 PPL Right Park

3 — — Left Turn

4 750 BLK Left Park

5 1451 BLK/WHT Stop

6 — — Spare

7 1921 TAN/BLK Spare

8 1455 BLK/WHT Gnd Zone 3B

9 — — Spare

10 — — Spare

11 — — Spare

12 — — Spare

13 — — Spare14 — — Spare

15 1922 WHT/BLK DTC J1708 / J1587(-)

16 840 ORN DLC Power

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Serial Data Link Connector Location

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

8-Way Tail Lamp Connector

TRUCK SIDE BODY BUILDER SIDEConnector Packard 280 SeriesTypical connector 15326906 (F) 15326655 (M)

Typical terminal 15304718 15304730Typical cable seal 12191232 12191232

noitcnuFeriWniP

Ckt # Color

A 618 YEL LR Stop/Turn

B 2609 BRN Lt Tail / License

C TBD — Spare

D 2609 BRN/WHT RT Tail

E 619 GRN DK RR Stop/Turn

F 24 GRN LT Back Up

G 350 BLK Gnd Zone 3B

H TBD — Spare

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Controller Area Network (CAN) Connector (L18 with JE4, LF6/LF8)

Connector Part Information

OEM: 15324337

Service: 15306401

Description: 9-Way F Deutsch HD10-9-1939PE (BK)

Terminal Part Information

Terminal/Tray: See Terminal Repair Kit

Core/Insulation Crimp: See Terminal Repair Kit

Release Tool/Test Probe: See Terminal Repair Kit

Pin Wire Color Circuit No. Function

A 1.0 BK 750 Ground

B 1.0 OG 840 Battery Positive VoltageC 1.0 YE 2361 SAE J1939 Serial Data Bus +

D 1.0 D- 2362 SAW J1939 Serial

E -- -- Not Used

F 1.0 TN/BK 1921SAE J1587 Serial Data

Bus+ Primary

G 1.0 WH/BK 1922SAE J1587 Serial Data

Bus- Primary

H 1.0 PK 1020 Ignition 0 Voltage

J 1.0 BK/WH 351 Ground

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Tail Lamp Connector Location

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

7-Way Tractor Connector – Family 3

Connector Packard 280/630 Seriesconnector 12077629terminal 15304720 3mm

seal 15366065 5mmterminal 15326004 3mmseal 12191235 5mm

noitcnuFeriWniP

Ckt # Color

1 22 WHT Tractor Gnd Zone 7B

2 1412 BLK Marker Lamp

3 318 YEL Lt Turn/Hazard

4 1411 RED Brake (1)

5 319 GRN DK Rt Turn/Hazard

6 9 BRN Park Lamp

7 1413 BLU DK ABS Power & Multiplexed Signal

NOTES:

(1) 30A maxi fuse. See page B-4.

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Tractor Connector – Family 3 Location

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

7-Way Trailer Connector – Family 2

Connector Packard 280/630 Seriesconnector 15354653terminal 12119853 3mm

terminal 15317332 5mmseal 12015323

noitcnuFeriWniP

Ckt # Color

7 A 24 GRN LT Back Up

2 B 22 WHT Tractor Gnd Zone 12A

3 C 47 BLU DK Aux Elec Brake (1)

4 D 319 GRN DK Rt Turn/Hazard

5 E 642 RED Electric Brake Power (2)

6 F 9 BRN Park Lamp

1 G 318 YEL Lt Turn/Hazard

NOTES:

(1) Blunt cut end found under hood. See UI Bulletin #66.

(2) 30A maxi fuse. See page B-4.

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T il C t L ti F il 2

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Trailer Connector Location – Family 2

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7 W T il C t F il 3

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

7-Way Trailer Connector – Family 3

Connector Packard 280/630 Seriesconnector 12077629terminal 15304720 3mm

seal 15366065 5mmterminal 15326004 3mmseal 12191235 5mm

noitcnuFeriWniP

Ckt # Color

1 22 WHT Tractor Gnd Zone 12B

2 1412 BLK Marker Lamp

3 318 YEL Lt Turn/Hazard

4 1411 RED Brake (1)

5 319 GRN DK Rt Turn/Hazard

6 9 BRN Park Lamp

7 1413 BLU DK ABS Power & Multiplexed Signal

NOTES:

(1) 30A maxi fuse. See page B-4.

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T il C t L ti F il 3

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Trailer Connector Location – Family 3

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10-Way Transmission Optional Connector

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

10-Way Transmission Optional Connector

ALLISON LCT TRANS

noitcnuFeriWniP

Ckt # Color

A 1146 PPL Range Indicator

B 1479 YEL Auto Neutral

C 2522 YEL PTO Status

D N/C — —

E N/C — —

F 1147 TAN Range InhibitG N/C — —

H 407 BLK Analog Gnd

J 476 BLK Digital Gnd

K 1480 BLU LT PTO Output

ALLISON MD TRANS

A 1146 PPL Range Indicator

B 1479 YEL Auto Neutral

C 915 YEL PTO EnableD 1481 YEL Aux Hold

E 1148 GRA Sump Temp

F 1147 TAN Range Inhibit

G N/C — —

H 407 BLK Analog Gnd

J 476 BLK Digital Gnd

K 1480 BLU LT PTO Engage

PPN = Production Part Number SPN = Service Part Number

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Transmission Optional Connector Location

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Transmission Optional Connector Location

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10 Way Upfitter PTO Connector

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

10-Way Upfitter PTO Connector

L18/LMM /LF8

noitcnuFeriWniP

Ckt # Color

A N/C — —

B 494 BLU LT PTO Kill

C 488 GRN LT PTO Enable

D 250 BLK GND

E 2663 PPL Tap Up

F 488 GRN LT PTO Enable

G 2522 YEL PTO Feedback

H 2561 WHT Engage

J 2664 TAN Tap Down

K N/C — —

LF6

A 250 BLK GND

B 494 BLU LT PTO Kill Switch

C 2664 TAN Tap Down

D 451 BLK/WHT Engine GND

E 451 BLK/WHT Engine GND

F 2663 PPL Tap Up

G 2522 YEL FEED BACK

H 2561 WHT Engage

J 451 BLK/WHT GND

K N/C — —

PPN = Production Part Number SPN = Service Part Number

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Upfitter PTO Connector Location

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Upfitter PTO Connector Location

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C-41

C127 E i Ch i H t R t P T k ff (PTO) (LF8)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Pin Wire Circuit Function Pin Wire Circuit Function

A YE/BK 7607 Remote PTO Acceleration Ground A -- -- Remote PTO Usage

B D-GN 7637 Remote PTO Acceleration Signal B -- -- Remote PTO Usage

C GY 7606 Remote PTO Acceleration VCC C -- -- Remote PTO Usage

D L-BU 7605 Remote PTO Ignore Brake Clutch Switch D -- -- Remote PTO Usage

E PU 7608 Remote PTO Cab Control Disable Switch E -- -- Remote PTO Usage

F WH/BK 7609 Remote PTO Set Speed B Switch F -- -- Remote PTO Usage

G D-BU 7610 Remote PTO Set Speed A Switch G -- -- Remote PTO Usage

H BN 7611 Remote PTO Resume Switch H -- -- Remote PTO Usage

J PU 7612 Remote PTO Set Switch J -- -- Remote PTO Usage

K -- -- Not Used K -- -- Remote PTO Usage

C127 Engine Chassis Harness to Remote Power Take-off (PTO) (LF8)

Connector Part Information

OEM: 12052189

Service: 12167122

Description: 10-Way M Metri-Pack 150

Series Sealed (GY)

Terminal Part Information

Terminal/Tray: See Terminal Repair Kit

Core/Insulation Crimp: See Terminal

Repair Kit

Release Tool/Test Probe: See Terminal

Repair Kit

Connector Part Information

OEM: 15318071

Service: 15306119

Description: 10-Way F Metri-Pack 150

Series Sealed (GY)

Terminal Part Information

Terminal/Tray: 12191819/8

Core/Insulation Crimp: 2/A

Release Tool/Test Probe:

15315247/J-35616-2A (GY)

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C-42

Right Rear Side Of Engine Compartment (LF8)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Right Rear Side Of Engine Compartment (LF8)

(1) C109

(2) Fuse Block - Primary

(3) C121

(4) C127

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D-1

Schematic Description and Navigation Instructions

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Schematic Description and Navigation Instructions

Background

The Schematics included in this document are part of GM’s IVED drawing system. These are the official drawings used to developvehicle programs, produce wire harnesses and develop service documentation. The following information is offered to help youunderstand how they are organized and how to use them.

Organization

It’s impossible to put all the information on only one drawing. The vehicle is broken down by subsystem. The schematics are organizedby subsystem number not by name. That’s why the index doesn’t follow an alphabetical order of the subsystems.

A number has been added on the bottom right of each page that indicates the subsystem number, revision level, and page number.

Example:

The first sheet is H83010a_001_01 (see page D-3)H83010a_001_01 The “ h83010a” is the Object ID on the drawing and represents the sub-system.

H83010a_001_01 The “010” represents the sub-system, in this case Power Distribution.Other examples are “014” for Ground Distribution and “020” for Engine Controls.

H83010a_001_01 The “ a” represents the first or only drawing for that sub-system. In this case multiple Power DistributionSchematics are included. “a” is for L18, “b” for LF8, “c” for LF6, and “d” for LMM engines.

H83010a_001_01 The “001” represents the revision level and is not important for most of your needs.

H83010a_001_01 The “01” represents panel set one on the schematic and indicates the page number. This Schematic hasnine pages for example.

Navigation

Every wire in the vehicle is given a unique circuit number. These numbers are indicated on the schematics in bold type next to the wire. An entire subsystem usually can’t be represented by only one page. How do you determine where a wire is connected to once it leavesthe page? Either the signal is connected somewhere else in the same subsystem or it goes to another subsystem.

(continued on next page)

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D-2

(Overview — continued from previous page)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

( p p g )

Arrows and “Home” Plates

An Arrow is used to indicate that the signal stays within the same subsystem. The schematic indicates the circuit number and (page #)next to the arrow. A pointed arrow ( –– ) points to where it’s going to. A receiving arrow ( –– ) shows what page it came from.

A “Baseball Home Plate” or indicates that the signal goes to another subsystem.

Example:

A is shown on the bottom left of the first schematic Power Distribution H63010a_003_01. (see page D-3)This is an eight circuit and the “baseball plate” indicates which subsystem it goes to. It is marked:

Interior LightingDimmer Signal Dist Page 8A-114A-1

The other end of the signal is shown in subsystem drawing 114A page 1. (see page D-226).Two “baseball plates” are shown so you look for the eight circuit to identify the proper circuit.

Fuse protection is shown in the “baseball plate.”

Other Information

Other information on the schematics are wire color and size. The size is shown in square mm. Connector information is indicated fordevices. Terminal assignments are shown for devices. The connector PN is for the harness end not the device.

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D-3

Power Distribution - (L18) 8 1L V8 GMPT VORTEC® - Gas

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Power Distribution - (L18) 8.1L V8 GMPT VORTEC - Gas

h83010a

C 12182112

F 12092078

C 12182113

CP

HTR/AC CA

P

C 12182113

F 12092079

P

TRANS

F 12092077

C 12182114C 12182112

F 12092078

A

B

C 12182112

C 12182112

F 12092079C

CP

AGAUGES C

PD

B

A

B

C 12182112

B

AXLE

15A

DPF 12092079

C 12182112

F 12092079D

10A

START

10A

D D

D

A

B

CPD

A

B

C F 12092077

B

F 12092079CP

F 12092077

C 12182114

D

10A

D

A

A

15A

C 12182112

10A

TURN/BACKUP

AUX WIRE RLY

BRAKECP

D

A

10A

ILLUM

20A

P

SIR

20A

A

CP

F 12092075

CPD

IGN4

15A 20A/30A

CHASSIS

D

A

A

B

P

BC 12182113

10A

C

B

B

B

PCM-I

D

10A

C 12182114

F 12092079

A

B

C

F 12092079

F 12092078

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

IGNSW

040-1034-1

100-1

26062266 PAGE 8A-

CIRCUIT

CIRCUIT PROTECTION LEGEND

SIR

110-1

DDEVICE

P

047-2

C

091-1

BEAMSW

010-1CRUISE

WIPER

= FAM 2

KEYMNDR 114-3

Panel Set: 1

= FAM 3

HORN

STEERING COLUMN

TRNHZ

PROTECTION

ORN300.

5.0

HVACVacuum Pump

SA300

IGN1

C6

IGN3

D1

CRANK

D2

BATT 2

D5

BATT 1

D6

IGN4/ACCY

S T A R T

R U N

O F F

L O C K

A C C E S S O R Y

Str Col Asm - Ign Sw

C1

IGN0

C5

HVACHvac

.

5.0RED

342

.5YEL

5.0

Dimmer Signal DistINTERIOR LIGHTING

INTERIOR LIGHTSHead Lamp Sw

.300ORN

5.0

SA141

1.0

.141BRN

3.

5.0PNK

5.0

.1390WHT

5.0ORN

300.

.141BRN

1.01.0

.141BRNBRN

141.

1.0BRN

141.

1.0

Rear Heater Rly CoilREAR HEATER

BRN5.0

.4

N3N5N7

K6 K8

L1L3 L5 L7

M4

N1

H4

J1J3J5J7

K2K4 D2

E1

Temperature MotorHVAC REAR DEFOGGER

Rear Defog Cntl

1

Beta Agustin Velazquez GMT5600Power Dist (L18)GMT560 X08

Wednesday, April 19, 2006

12:20:33 pm

$IVEDWORK/h83010a__001s ch ema tic s he et 1

h83010a18

001

1.0

.141BRN

(Page 8)

AXLE_P

241

4 4 D IM ME R

ILLUM8

1139(Page 9)

SIR_P

R_HTR_RLY_P

IGN3_MAXI

(Page 2)

IGN1_MAXI

(Page 2)242

(Page 7)

IGN4_P

43(Page 7)

TRANS_P

1020

PCM-I_P

(Page 8)439

(Page 6)

GAUGES_P

39

TURN_P

(Page 6)139

(Page 6)441

BRAKE_P CHASSIS_P

(Page 8)541

(Page 6)641

AUX_WIRE_P

(Page 6)

START_P

806

HVAC_P TEMP_CNTL_P VAC_PUMP_P HVAC_FOG_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-4

Power Distribution - (L18) 8 1L V8 GMPT VORTEC® - Gas (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010a

Power Distribution - (L18) 8.1L V8 GMPT VORTEC - Gas (continued)

B12065933

A

40A

HEADLAMP

B

A

12065935

30A

A AIGN1

A

40A

LIGHTING

1207784312065933

40A

12065934

50A

BRAKE LP - FAM 3

B

60A

IGN3

B12065935

A

60A

BATT/HAZ

B12065934

A

B

IGN4

B

ELEC BRK - FAM 2

12065933

A

50A

HVAC

B

DC 12182116

APWR POST

PD

B

CP

TRLR

B

CPD

A

BB

C C

B

D

A

F 12092077

C 12182114

P

A

PD

A

B

D

CHMSLA

DRLCA

CP

TRN/HAZ

F 12092077

ARADIO/CHIME

BB

C

20A25A 20A

PWR ACCY MARKER LP COURTESY

B

CP

15A

STOP

10A20A

20AB

15A

CPD

C 12182114

PD

A

C 12182112

F 12092078CPD

F 12092079

C 12182112C 12182113

10A20A

C 12182114

HAZARDA

PARK

F 12092077D

20AB

A

C 12182114

F 12092078

C 12182113

F 12092077

C 12182114

F 12092076 F 12092077

C 12182114

F 12092079

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

DEVICE

= FAM 2CIRCUIT

D

Panel Set: 2

P

CIRCUIT PROTECTION LEGEND

= FAM 3

PROTECTIONC

RED242.

5.0

Head Lamp SwEXTERIOR LIGHT

1140ORN

BrakeTRAILER WIRING

.

0.8

Battery PositiveBATTERIES

5.0

.142RED

HVACBlow Motor Rly

A5 A6 A7 A8

MAXBATT

Maxifuse - Block Asm

A1 A2 A3 A4

SA242

Marker Lp RlyEXTERIOR LIGHT

SA142

Turn Hazard SwEXTERIOR LIGHT

SA1140

RED142.

5.0

RED

.241BRN

0.8

.642

3.0

EXTERIOR LIGHTBrake Lp Rly

.1140ORN

Ipc (Batt)IP CLUSTER

0.8

EXTERIOR LIGHTHead Lamp Sw

Drl DiodeDRL

RED142.

5.05.0RED

242.

Trailer RlysEXTERIOR LIGHT ORN

1140.

0.8

RED3.0

1542.

3.0

.1142RED

ORN1140.

0.8

STARTING & CHARGINGStarter Rly

BMaxi Ring TermA

Wednesday, April 19, 2006

12:20:33 pm

$IVEDWORK/h83010a__001s ch em at ic s he et1

h83010a18

0012

Beta Agustin Velazquez GMT5600Power Dist (L18)GMT560 X08

G7E3 E5 E7

F4 F8

G1G3 G5

B4

C1C3C5C7

D6

Block Asm-Ip Pwr 1

3.0

.1142RED

SA1142

.1340ORN

1.0

RED1342.

3.0

3.0RED

242.

RADIORadio Pwr

CHIME MDLChime Mdl

ACTIVE TRANSFER CASE4WD ATC Mdl

ACTIVE TRANSFER CASE4WD ATC Mdl

BRAKESBrake Switch

242 STARTRLY_P

IGN1_MAXI

(Page 1)

4WD_ATC

MRK_LPS_P340 DRL_BEAM_PRADIO_P

ATCSWP

PARK_P240

IPC1_P CHIME_P

COURTESY_P

(Page 8)40

140 BRK_SW_P HAZ_P1040 TRLR_HAZ_P640 (Page 7)

ACCY_P

540 840

POST

(Page 8)

ABS_TRLR2_P

HVAC_MTR_P

(Page 1)

IGN3_MAXI

342

(Page 5)

IGN4_MAX

1242

TRLR_LP_P

542

1142 HEADLAMP_P

1 MAXICTR_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-5

Power Distribution - (L18) 8 1L V8 GMPT VORTEC® - Gas (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010a

Power Distribution (L18) 8.1L V8 GMPT VORTEC Gas (continued)

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

C 12077842

Maxi

1206593312065932

A

B40A

12065933

20A 20A

Maxi

CPD

CPD

F 12065931ENGINE

B

F 12065931

50A

E/A PUMPABS 1A

ABS 3C 12077842

40A

A

Maxi

HORNA

B

A

Maxi Maxi Maxi Maxi Maxi30A 40AB BB

12065933STUD B

A

B12065932

A

30A

FUEL

Maxi

12065933 1206593440A

STUD A ABS 2

PAGE 8A-

HORN RLY

18A-222A/C-1FUEL PUMP RLY

12146281

30A/E-140A-1

Panel Set: 3

PTO RLY

STARTER RLY

Underhood Distribution Center

1.0

2.0ORN

1640.

.740ORN

A2

3.0RED

442.

30M GTMXD SLDD4

RED1642.

3.0

ORN740.

1.0

EbcHYDRO BRAKES

LB1042

Loop Anchor

Loop Anchor

LA1640

RED1642.

3.0 3.0

.42RED

A4

Fuel Pump Rly

3.0

.1642RED

FUEL HAND & STOR

30F GTMXD SLDD5

30F GTMXD SLDD4

.1042RED

5.0

3.0

.1840ORN

.1642RED

3.0RED

1042.

5.0

Beta Agustin Velazquez GMT5600Power Dist (L18)GMT560 X08

Wednesday, April 19, 2006

12:20:33 pm

$IVEDWORK/h83010a__001s ch em ati c s he et1

h83010a18

0013

A2

BATTERIES

Battery Positive

ORN740.

1.0

D5 30M GTMXD SLD

J1-M5 J1-M6 J1-M7

J2-AJ3-AUHBATT

J1-M1J1-M2 J1-M3 J1-M4A B

2.0

.1640ORN

HYDRO BRAKESEbc

Loop Anchor

LA740

HYDRO BRAKESElec Air Comp

.42RED

Loop Anchor

LB740

3.0 5.0

.1042RED

A4

Ebc / Rly

44C-2

BRAKESHorn RlyHORN

Loop Anchor

LA1042

Horn RlyHORN

.740ORN

1.0

RED1042.

5.0

Trailer WiringTRLR WRG

UHDIST_P1

BUSBAR2_P

(Page 4)(Page 4)

BUSBAR_P

1

FUEL_RLY_PEAC_MTR_P4 42 E BC _PABS_TRLR_P HORN_P HORN_RLY_PEBC2_PHYD_EBC_P

IGN_A_P

(Page 4)

(Page 4)

IGN_B_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-6

Power Distribution - (L18) 8 1L V8 GMPT VORTEC® - Gas (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010a

Power Distribution (L18) 8.1L V8 GMPT VORTEC Gas (continued)

10A B10A

ENG-1

12092079

10A

ENG-4

15A

A

B B

A

12092079

AA

B

A ENG-2

15092075

B

O2A

12092078

ENG-3

12092079

30A

A

15AB

PCM-B A

B

120920781209207812092079

10A 15A

REAR DEFOGA/C COMP

B

A

IGNA RLY

12193604

IGNB RLY

12088567

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 4

739.

0.8PNK

ENGINE CNTLS

24F GTMXD SLDC4

O2 Snsr Htr A

GND DISTGnd Zone #2B

0.8

2000 PPL5.0

.

.739PNK

Ign Coils (even)ENGINE CNTLS

Enable RlyHVAC

0.8

.339PNK

RED1.

5.0

.2000PPL

5.0

0.8

.1240ORN

C424M GTMXD SLD

PNK539.

0.8

LB2000

Loop Anchor

PPL

2.0

.1093

O2 Snsr Htr BE NG INE CNTLS E NG INE CNTLS

Fuel Inj (even)

J1-K7

J1-L6J1-L8J1-G8

J1-H3 J1-H5J1-H7

J1-J4 J1-J6

J1-K5J1-F3 J1-F5J1-F7

J1-G2 J1-G4 J1-G6

Uh - Block Asm

J1-F1

ENGINE CNTLSIgn Coils (odd)

2000.5.0

PPL

D6

Uh - Ign Rlys

A4 A6

B4B6

C4C6

D4

87

86

85

3086

8785

RED1.

5.0 GND DISTGnd Zone #2B

5.0PPL

2000.

0Power Dist (L18)GMT560 X08

Wednesday, April 19, 2006

12:20:33 pm

$IVEDWORK/h83010a__001s ch em ati c s he et1

h83010a18

0014

Beta Agustin Velazquez GMT560

Rear Defog CntlREAR DEFOGGER ENGINE CNTLS

Fuel Inj (odd)

PPL1093.

2.0

Loop Anchor

LA2000

440(Page 7)

PCM-B_P ENG-4_P

(Page 8)639

3 39 I NJ 2_ P

239

ENG-1_P

(Page 8)

INJ1_P539

250 IGNA_RLY_G

1042

(Page 3)

IGN_B_P439

(Page 8)

IGNB_RLY_P

1042

IGN_A_P

(Page 3)

439

IGNA_RLY_P

(Page 8)

O2_HTRB_PO2_HTRA_P IGN_COIL2_P IGN_COIL1_P

(Page 3)

BUSBAR_P

DEFOG_PHVAC_RLYA_P

250 IGNB_RLY_G(Page 3)

BUSBAR2_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-7

Power Distribution - (L18) 8.1L V8 GMPT VORTEC® - Gas (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010a

Power Distribution (L18) 8.1L V8 GMPT VORTEC Gas (continued)

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

PCPD

10A

DD

ABRAKE ISO

C 12182116 F 12092079

C 12182112

A

B

CPC

10A

RADIO U

B

A A

D

LH PARKLAMPA

10A

F 12092079

C 12182112B

A

B

CA

RH PARKLAMP PWR WINDOW

10A

DPD

R-RR TRUCK

10A

25A

L-RR TRUCK

B

PF 12092079

C 12182112

F 12092079

C 12182112

F 12092079

C 12182112

F 12092079

C 12182112

P

BB

C

15A

ONSTARCPD

F 12092079

C 12182112

A

B

C

10A

= FAM 3

CIRCUITPROTECTION

RH TURN TRAILER RLY

12129833DRL RLY

CHMSL RLYLH TURN TRAILER RLY

I/P Distribution/Relay CenterPAGE 8A-

Panel Set: 5

= FAM 2

CIRCUIT PROTECTION LEGEND

P

102A-1

147B-1

BRAKE LAMP RLY110A-2

HEATED MIRROR RLY110A-4

C

MARKER LAMP RLY

110A-2

DEVICED

110A-2110A-2

SB2609

2509.BRN

1.0

2609.BRN/WHT

40F GTMXD SLDB4

1.0

5

Beta Agustin Velazquez GMT5600Power Dist (L18)GMT560 X08

Wednesday, April 19, 2006

12:20:33 pm

$IVEDWORK/h83010a__001s ch ema ti c s he et 1

h83010a18

001

Window SwitchPOWER WINDOW

INTERIOR LIGHTINGDoor Switch Illum

SE2509

Rh Turn Trailer RlyEXTERIOR LIGHT

ORN2040.

0.8

SH2509

Head Lamp SwEXTERIOR LIGHT

0.5

.2509BRN

LCT TRANSGrade Brk Sw

GND DISTGnd Zone #4B

BODY BLDR/SCH BUSRight Park

BLK755.

5.0

1.0

2609.BRN/WHT

YEL.618

1.0

1.0

2609.BRN/WHT

Left Front ParklampEXTERIOR LIGHTING

Turn Haz SwEXTERIOR LIGHT

1.0

2509.BRN

EXTERIOR LIGHTRr Turn Lp

C12

Left Rear ParklampEXTERIOR LIGHTING

BRAKESBrake Switch

SA618

SA619

BODY BLDR/SCH BUSLeft Park

EXTERIOR LIGHTLh Turn Trailer Rly

BRN.2509

0.8

2509.BRN

1.0

2.0

2509.BRN

Lr Turn Lp

C12

EXTERIOR LIGHTBRN/WHT

.2609

1.0

EXTERIOR LIGHTTurn Haz Sw

SA2609

5.0

LCT TRANSMISSIONOverdrive Defeat Sw Illum

BLK755.

619.GRN DK1.0

1.0

618.YEL

BA2040

Blunt Cut

ACTIVE TRANSFER CASE

4WD ATC Mdl

1.0

.GRN DK1.0

619

618.YEL

BRN/WHT.2609

1.0

S8

T3

T4

R5

R6R8

S3

S4

S5

S6

S7

86

Ignition 4

12193604

L30

L85

L86

L87

R1

R2 R4

Ip2 - Block Asm

85

30

BRN.2509

1.0

BRN/WHT.2609

2.0

EXTERIOR LIGHTINGRight Front Parklamp

Loop Anchor

LA755

Right Rear ParklampEXTERIOR LIGHTING

GRN DK.

BRN/WHT.230

0.8

619

1.0

5.0

.1242RED

0.35BRN/WHT

230.

Marker Lamp RlyEXTERIOR LIGHTING

40M GTMXD SLD B4

INTERIOR LIGHTINGSwitch Illum

2509 DOOR_SW_ILL

43(Page 7)

IGN4_RLY

IGN4_MAX

(Page 2)

BB_R_PARK2609 BB_L_PARK2509

ATCBLTGRDBRK2

BRAKE_ISO_P17

(Page 8)1320

BRAKE_ISO

RR_STOP_LP19

IGN4_RLY_G

WIN_IGN4_P343

9 PARK_LP_P 18 LR_STOP_LP

450

LTURN_RLY_P618ODDS_LP

619 RTURN_RLY_P RR_TURN_P

LR_TURN_P

L_TAIL_PRFR_PARK_PR_TAIL_P LFR_PARK_P

SW_ILLUM

MRK_RLY_P

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E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-9

Power Distribution - (L18) 8.1L V8 GMPT VORTEC® - Gas (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010a

Power Distribution (L18) 8.1L V8 GMPT VORTEC Gas (continued)

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 7

22F GTMXDB11

ORN440.

0.8

22M GTMXDB11

.440ORN

1.0

1020PNK

0.8

.

22M GTMXDB11

30F GTMXDA9

TRANSMISSIONTcm Sdg Mdl

C4

SERIAL DATA

30F GTMXD SLD30F GTMXD SLD

A2

SA43

.1020PNK

0.8

0.8ORN.440

PcmENGINE CNTLS

ORN540.

1.0

A230M GTMXD SLD

.540ORN

1.0

1.0

540ORN

1.0

.ORN

540.

SERIAL DATASdg Mdl

YEL43.

1.0

Wiper SwitchWIPER/WASHER

PcmENGINE CNTLS

Pass Dr Lck SwPWR DR LK

ENGINE CNTLSPcm

SB1020

h83010a18

001

1.0

7

Beta Agust in Velazquez GMT5600Power Dist (L18)GMT560 X08

Wednesday, April 19, 2006

12:20:33 pm

$IVEDWORK/h83010a__001s chem at ic s hee t1

.440ORN

Rfa MdlKEYLESS ENTRY

1.0

.43YEL

IpcIP CLUSTER

Wiper MotorWIPER/WASHER

1.0ORN

440.

1.0

.540ORN

TcmTRANSMISSION

540.

1.0ORN

1.0

.540ORN

ORN540.

1.0

SA1020

ORN

540.

1.0

Dr Lk Rly

1.0

.43YEL

PWR DR LK

Drv Dr Lck SwPWR DR LK

1020.

0.8PNK

Tcm

1.0

.540ORN

LCT TRANSMISSION

.1020PNK

0.5

SB540

ORN0.8

.440

POWER MIRRORSMirror Switch

1.0

.43YEL

SA540 SA440

ORN540.

1.0

0.8PNK

1020.

PNK1020.

0.5

IP CLUSTERIpc

SC540

ORN540.

1.0

YEL43.

1.0

30M GTMXD SLDC4

0.5PNK

1020.

B11

0.5

.1020PNK

22F GTMXD

.440ORN

0.5

30M GTMXDA9

ORN540.

1.0

ORN540.

1.0

Rear Heater RlyREAR HEATER

1.0

.540ORN

TCM_BAT_PP2 TCM_BAT_PP

TRANS_P

PCM_IGN0_P

SDG_2_P

LCT_IGN0_P

IPC_IGN_P

(Page 1)

R_HVAC_P

ACCY_P

(Page 2)

DRV_LK_PMIR_SW_P

PASS_LK_P

LK_RLY_P RFA_P

SDG_1_P

(Page 4)

PCM-B_P

PCM_BAT1_PPCM_BAT2_P

IGN4_RLY

(Page 5) IGNSW_D2_P WIPE_PWASH_P

(Page 1)

IGN4_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-10

Power Distribution - (L18) 8.1L V8 GMPT VORTEC® - Gas (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010a

o e st but o ( 8) 8 8 G O C Gas (co t ued)

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 8

BRN241.

2.0

241.

2.0BRN

PNK0.8

Aux Power #2AUX POWER

.639

HYD BRAKESEbc

0.8

.439

PNK

16F GT280R

439.PNK

0.8

A6

40M GTMXD SLDA6

40F GTMXD SLD

0.8

239.PNK

Wednesday, April 19, 200608 XGMT560

Power Dist (L18)0 GMT560Agustin VelazquezBeta

8

4M MP280 SLDB

00118

h83010asheet1schematic $IVEDWORK/h83010a__001

12:20:33 pm

0.5PNK

239.

16M GT280R

Air MeterENGINE CNTLS

AUX POWERAux Power #1

A1230M GTMXD

639.

0.5PNK

0.8

.439PNK

Tcs LedBRAKES40M GTMXD SLD

C6

8M GT280 SLDG

239.

0.5PNK

ORN1.0

.840

G8F GT280 SLD

Reservoir Air Press SwHYDRO BRAKES

241BRN

2.0

.

BRN541.

0.5

0.8

B5

.439

PNK

0.5PNK

239.

Data Link ConnDATA LINK CONN

.241BRN

2.0

B5

BRN541.

0.5

SA840

30M GTMXD SLDB10

40M GTMXD SLDD3

StopBODY BUILDER/SCHOOL BUS

PNK439.

0.8

840ORN

1.0

.

R

840.

1.0ORN

16F GT280 SLD

A1

PcmENGINE CNTLS

30F GTMXD SLD

0.8

.439PNK

.439PNK

0.8

UPFITTER PROVPto Rly

Cigar Lighter/Rear Aux PowerAUX POWER

SC23930M GTMXD SLD

A4

Cruise Cntl Sw

AIR BRAKESAir Dryer

CRUISE CONTROL

PNK239.

0.5

ELEC THROT CNTLEtc Mdl

REAR AIR SUSPAir Susp Sw

B4F MP280 SLD

BRN

0.5

.541BRN

2.0

.241

1.0ORN

840.

.

2.0BRN

241

ORN1.0

.840

30M GTMXD SLDA1

SD541

SA439

2 SPEED REAR AXLE2Speed Rly

30F GTMXD SLDB10

A12 30F GTMXD

BRN

.439PNK

241.

2.0

0.8

.239PNK

Pto Enable SwUPFITTER PROV

0.5

0.8

.239PNK

439.

0.8PNK

SB439

SA239

1.0

.840ORN

LCT TRANSMISSIONOverdrive Defeat Sw Led

0.8

.239PNK

0.5BRN

541.

Cnstr PurgeENGINE CNTLS

BRN0.5

.541

0.5

.1320BLU LT

Batt +DTC

.

0.5PNK

239

30F GTMXDA8

A4

0.8

.439PNK

30F GTMXD SLD

R

40F GTMXD SLDD3

16M GT280 SLD

2 SPEED REAR AXLEElec 2Sp Sw Led

0.8

.239PNK

.541BRN

0.5

Chmsl Iso Rly EtcELEC THROTTLE CNTRL

BLU LT1320.

0.5

EXTERIOR LIGHT

40F GTMXD SLDC6

0.5

.1320BLU LT

BLU LT1320.

EXTERIOR LIGHTBrake Lp Rly

0.5

SA1320

A8 30M GTMXD

BRK_NO_P1320

(Page 5)

BRAKE_ISO

CHMSL_RLY_PBRKLP_RLY_P

1320 BB_STOP_P

PTO1_RLY_P239

(Page 1)

AXLE_P

2SP_RLY_P

PCM-I_P

(Page 1)

EBC_IGN1_P

(Page 4)

IGNB_RLY_P

IGNA_RLY_P

(Page 4)

PCM_IGN1_PETC_P

DLC_P SERIAL_P

840 CIGAR_P

ODDS_LED_P

POST

(Page 2)

AUX1_P AUX2_P

L18_MAF_P

PTO_SW_P

2SP_LED_P

EAC_RLY_P

PURGE_P

ENG-1_P

(Page 4)

ENG-4_P

(Page 4)

CRUISE_P

AIR_DRY_P541

CHASSIS_P

AIR_SUSP_PTCS_SW_P

(Page 1)

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-11

Power Distribution - (L18) 8.1L V8 GMPT VORTEC® - Gas (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010a

( ) ( )

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 9

Driver only Dual SIR

Driver onlyDual SIR

SIRSdm

.40ORN

.YEL

0.5

1139

0.8

YEL0.5

1139.

16F GT280E

0.8

.40ORN

16M GT280C

SIRPsir Delete Resistor

30F GTMXDB6

0.5

1139.YEL

SA11390.8

16F GT280C

ORN40.

ORN40.

0.5

16M GT280E

40.ORN

0.5

.1139

0.5YEL

YEL.1139

0.5

30M GTMXDB6

SB1139

Dome Lamp

INTERIOR LIGHTS

SA40

YEL.1139

0.5

SIRPsir Defeat Sw

1139

0.5YEL.

0Power Dist (L18)GMT560 X08

Wednesday, April 19, 2006

12:20:33 pm

$IVEDWORK/h83010a__001s ch em ati c s he et1

h83010a18

001

INTERIOR LIGHTS

Rear Dome Lamp

9

Beta Agustin Velazquez GMT560

YEL.1139

0.5

SDM_P SIR_OHM_P PSIR_P

SIR_P

(Page 1)

(Page 2)

COURTESY_P

DOME_P RR_DOME_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-12

Power Distribution - (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010d

( )

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

AUX WIRE RLY

CHASSIS

B 10A

10A

10A

PCM-I

12092079

TURN/BACKUP

12092078

15A

12092079 12092079

ILLUM

12092079

12092079

IGN4

20A

15A

12092079

10A

10A

A

BRAKE

B

A

1209207912092078

12092078

12092077

12092077

HTR/ACSIR

10A

A

START

20AB

A

B

A

B

A

B

A A A

A

B

A

B

A

B

TRANS

10A

15A

GAUGES

B B B

HORN

IGNSW

110-1

010-126062266

100-1

STEERING COLUMN

KEYMNDR

034-1

091-1

TRNHZ

040-1

Panel Set: 1

114-3

CRUISE

047-2

BEAMSW

SIRWIPER

PAGE 8A-

BRN141.

1.0

5.0

.3PNK

BRN141.

1.0

HVACTemperature Motor

INTERIOR LIGHTSHead Lamp Sw

SA141

Dimmer Signal DistINTERIOR LIGHTING

Vacuum PumpHVAC

YEL5.

5.0 5.0

.300ORN

HvacHVAC

1.0

Wednesday, April 19, 2006001

5

h83010dsheet1schematic $IVEDWORK/h83010d__001

12:23:07 pm

08 XGMT560

Power Dist (LMM)0 GMT560Agustin VelazquezBeta

1

BRN141.

5.0BRN

4.

RED342.

5.0

REAR HEATERRear Heater Rly Coil

.141BRN

1.0 1.0

.141BRN

L5 L7

M4

N1N3N7J5J7

K2K4 K6 K8

L1L3

H4

J1J3

D2

E1

REAR DEFOGGERRear Defog Cntl

SA300

WHT1390.

5.0

ORN300.

5.0

BATT 2

D5

BATT 1

D6

IGN4/ACCY

O F F

L O C K

A C C E S S O R Y

Str Col Asm - Ign Sw

C1

IGN0

C5

IGN1

C6

IGN3

D1

CRANK

D2

S T A R T

R U N

141.

1.0

5.0

.300ORN

BRN

ILLUM8

DIMMER44

1139(Page 9)

SIR_P

R_HTR_RLY_P

IGN3_MAXI

(Page 2)

IGN1_MAXI

(Page 2)242

T EM P_ CN TL _P V AC _P UM P_ P H VA C_ FO G_ PHVAC_P

START_P

(Page 7)43

IGN4_P

(Page 6)

AUX_WIRE_P

641541

CHASSIS_P

(Page 8)(Page 6)

BRAKE_P

441(Page 7)

1020

TRANS_P

(Page 8)

PCM-I_P

439(Page 6)

39

GAUGES_P

(Page 6)

TURN_P

139(Page 6)

806

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-13

Power Distribution - (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010d

B12065933

A

40A

HEADLAMP

B

A

12065935

30A

A AIGN1

A

40A

LIGHTING

1207784312065933

40A

12065934

50A

BRAKE LP - FAM 3

B60A

IGN3

B12065935

A

60A

BATT/HAZ

B12065934

A

B

IGN4

B

ELEC BRK - FAM 2

12065933

A

50A

HVAC

B

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

PARKHAZARD A

10A

COURTESY

20A

MARKER LP

15AB 20A

DRL

15A20A25A

TRN/HAZ

B 20A

12092077

RADIO/CHIME

12092078 12092078 1209207912092077 1209207912092076

TRLRPWR POST CHMSLPWR ACCY

12182114STOP

B

A

B

A

B

A

B

A

B

A

B

A

B

A A

B 10A20A20A

A A12092077

B

1209207712092077

Panel Set: 2

5.0

.242RED

0.8BRN

241.

Battery PositiveBATTERIES

Blow Motor Rly

BRAKES

Maxi Ring Term AB

HVAC

Brake Switch

3.0RED

1342.

4WD ATC MdlACTIVE TRANSFER CASE

RED642.

3.0

EXTERIOR LIGHTTurn Hazard Sw

SA1140

5.0

Starter RlySTARTING & CHARGING

.242RED

SA142

0.8

A5 A6 A7 A8

MAXBATT

ORN1140.

Maxifuse - Block Asm

A1 A2 A3 A4

.1142RED

3.0

ACTIVE TRANSFER CASE

.242RED

3.0

4WD ATC Mdl

RED142

5.0

.

.1340ORN

1.0

2 Wednesday, April 19, 2006001

5

h83010dsheet1schematic $IVEDWORK/h83010d__001

12:23:07 pm

08 XGMT560

Power Dist (LMM)0 GMT560Agustin VelazquezBeta

3.0

.1142RED

EXTERIOR LIGHTTrailer Rlys

IP CLUSTERIpc

EXTERIOR LIGHTHead Lamp Sw

CHIME MDLChime Mdl

TRAILER WIRING

Brake

SA1142

5.0

.142RED

F8

G1G3 G5G7C7

D6

E3 E5 E7

F4

Block Asm-Ip Pwr 1

B4

C1C3C5

0.8ORN

1140.

EXTERIOR LIGHTMarker Lp Rly

DRLDrl Diode

EXTERIOR LIGHTHead Lamp Sw

Radio PwrRADIO

5.0

.142RED

0.8

.1140ORN

0.8

.1140ORN

SA242

STARTRLY_P242

(Page 1)

IGN1_MAXI

4WD_ATC

340 DRL_BEAM_P MRK_LPS_PIPC1_PRADIO_P CHIME_P

ATCSWP

2 40 P AR K_ P

COURTESY_P

(Page 9)40

1 MAXICTR_P

ABS_TRLR2_P

342

(Page 5)

IGN4_MAX

1242

1142 HEADLAMP_P

542 HVAC_MTR_P

BRK_SW_P140 1040 HAZ_P (Page 8)

POST

840(Page 7)

ACCY_P

540

TRLR_HAZ_P640

(Page 1)

IGN3_MAXI

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-14

Power Distribution - (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010d

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

E/A PUMP

50AB

A

Maxi

A

B

A

BMaxi

12065933 20A

12065931

40A Maxi

FUEL

BMaxi

A

B

AABS 1 12065931

12065934

40A

STUD A

B

12065933 20A12065933

HORN

40A

ENGINEABS 3

12065932

B

ABS 2

30A Maxi40A

A

BMaxi

A

MaxiMaxi30A

A

Maxi

A

B

12065932

STUD B

12065933

Panel Set: 3

22A/C-130A/E-1

18A-212146281

FUEL PUMP RLYSTARTER RLY

Underhood Distribution Center

PTO RLY

40A-1HORN RLY

PAGE 8A-

SA1042

3.0

.442RED

30F GTMXD SLDA2

RED

42.

3.0

1.0

ORN740.

1042.

5.0RED

2.0

.1640

ORN3.0

.1642

RED

Horn RlyHORN

A4

Beta Agustin Velazquez GMT5600Power Dist (LMM)GMT560

Loop Anchor

LA1640

X08

12:23:07 pm

$IVEDWORK/h83010d__001s chem at ic s he et 1

h83010d5

001Wednesday, April 19, 20063

1.0ORN

740.

BATTERIESBattery Positive

30M GTMXD SLDA2

.

2.0ORN

1640

RED3.0

.1642

D4

BRAKESEbc / Rly

Loop Anchor

LA740

EbcHYDRO BRAKES

3.0

.1840ORN

5.0

D4

.1042RED

Elec Air CompHYDRO BRAKES

RED1042.

5.0

5.0

.1042RED

740ORN

1.0

.

3.0

.42RED

HORNHorn Rly

FUEL HAND & STORFuel Pump Rly

Loop Anchor

LB740

A4

HYDRO BRAKESEbc

J2-AJ3-AUHBATT

J1-M1J1-M2 J1-M3 J1-M4 J1-M5 J1-M6 J1-M7A B

1.0

.740

ORN

HORN_RLY_PEAC_MTR_P FUEL_RLY_P442 EBC_P

(Page 4)

BUSBAR_P

1 1

BUSBAR2_P

(Page 4)

HYD_EBC_P

IGN_B_P

(Page 4)

EBC2_P HORN_P

UHDIST_P

IGNB_RLY_P

(Page 4)

IGN_A_P

(Page 4)

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-15

Power Distribution - (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010d

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

IGNA RLY

12193604

IGNB RLY

12088567

12092077

BB

PCM-BEV FAN

15092081

A

B

A ENG-1

5A

AENG-2

B

ENG-3AA

15092075ENG-4

10A

12092079

B

A

25A

12092076

30A10A B10A

REAR DEFOG

12092079

B 12092075

30A

12092079

A

20A BB

A A/C COMPHTD FUEL

12092079

A

10A

Panel Set: 4

ENG CNTLS

Pcm

2.0

4

Beta Agust in Velazquez GMT5600Power Dist (LMM)GMT560 X08

12:23:07 pm

$IVEDWORK/h83010d__001sche matic sheet1

h83010d5

001

PPL1093.

Wednesday, April 19, 2006

A4 24F GTMXD SLD

440.

0.8ORN

1.0

.1440ORN

PPL2.0

.1093

2000PPL

5.0

.

Rear Defog CntlREAR DEFOGGER

Loop Anchor

LA2000

5.0

.1RED

Loop Anchor

LB2000

24M GTMXD SLDA4

0.8

.1240ORN

5.0PPL

2000.

2000.

5.0PPL

C4 24F GTMXD SLD

FAN CONTROLSEV Fan

5.0

.1RED

A4 A6

B4B6

C4C6

D4 D6

87

86

85

30 3086

8785

Uh - Ign Rlys

Htd Fuel RlyHEATED FUEL

Enable RlyHVAC

ORN1440.

1.0

5.0

.2000PPL

J1-J6J1-J8

J1-K5J1-K7

J1-L6J1-L8J1-G8

J1-H3 J1-H5J1-H7

J1-J2 J1-J4

J1-F1 J1-F3 J1-F5J1-F7

J1-G2 J1-G4 J1-G6

Uh - Block Asm

C4

Gnd Zone #2B

GND DIST

24M GTMXD SLD

FAN_PWR

639

ENG-4_P

(Page 8) (Page 6)

ENG-2_P

BUSBAR2_P

(Page 3)

(Page 7)440

PCM-B_P

HFUEL_3_P HVAC_RLYA_P2 DEFOG_P

ENG-1_P

(Page 8)239 339

BUSBAR_P

(Page 3)250 2219 IGNB_P

439

IGNA_RLY_P

(Page 8)

IGNB_RLY_P

(Page 3)

1042

1042

IGN_A_P

(Page 3)

1042

(Page 3)

IGN_B_P

IGNA_RLY_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-16

Power Distribution - (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010d

12092079 12092079 12092079 12092079 12092079

R-RR TRUCKRADIO U

10A

A

B

RH PARKLAMP A

B

L-RR TRUCKA

BB

AONSTAR

10A15A

A

B

12092078

B

AA

B

A

B25A 10A

PWR WINDOW

10A

LH PARKLAMP

10A 10A

BRAKE ISO1218211612092079

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

MARKER LAMP RLY

102A-1

Panel Set: 5

110A-4RH TURN TRAILER RLYLH TURN TRAILER RLY

BRAKE LAMP RLY

110A-2110A-2

147B-1

CHMSL RLY

HEATED FUEL RLY

110A-2

PAGE 8A-

DRL RLY

I/P Distribution/Relay Center

23D-1

HEATED MIRROR RLY

12129833

110A-2

0.8

2509.BRN

S5

S6

S7

S8

T3

T4

R1

R2 R4

R5

R6R8

S3

S4

87

12193604

Ignition 4

86 30

85

Ip2 - Block Asm

L30

L85

L86

L87

BRN.2509

2.0

Loop Anchor

LA755

SA618

755.

5.0BLK

1.0

2509.BRN

Rh Turn Trailer RlyEXTERIOR LIGHT

4WD ATC Mdl

B4

ACTIVE TRANSFER CASE

EXTERIOR LIGHTINGMarker Lamp Rly

Lr Turn LpEXTERIOR LIGHT

C12 40M GTMXD SLD

EXTERIOR LIGHTINGLeft Rear Parklamp

SA619

BODY BLDR/SCH BUSRight Park

Head Lamp SwEXTERIOR LIGHT

SE2509

Switch IllumINTERIOR LIGHTING

BRN.2509

1.0

Left Front ParklampEXTERIOR LIGHTING

1.0

2609.BRN/WHT

1.0

2509.BRN

0.8

230.BRN/WHT

1.0YEL.618

B4

5

Beta Agust in Velazquez GMT5600Power Dist (LMM)GMT560 X08

Wednesday, April 19, 2006

12:23:07 pm

$IVEDWORK/h83010d__001sche matic sheet1

h83010d5

001

EXTERIOR LIGHTTurn Haz Sw

EXTERIOR LIGHTRr Turn Lp

EXTERIOR LIGHTINGRight Front Parklamp

Gnd Zone #4BGND DIST

GRN DK.619

1.00.8ORN

2040.

.2509BRN

0.5

LCT TRANSMISSIONOverdrive Defeat Sw Illum

INTERIOR LIGHTING

SH2509

Door Switch Illum

BRN/WHT.2609

1.0

POWER WINDOWWindow Switch

YEL.618

1.0

BRN/WHT.2609

1.0

Grade Brk SwLCT TRANS

BRN/WHT.230

0.35

1.0BRN/WHT

.2609

755.5.0

Blunt CutBA2040

SA2609

BLK

RED1242.

5.0

BRAKESBrake Switch

40F GTMXD SLDC12

2509.BRN1.0 EXTERIOR LIGHT

Lh Turn Trailer Rly

1.0

2609.BRN/WHT

Turn Haz SwEXTERIOR LIGHT

.GRN DK1.0

619

BODY BLDR/SCH BUSLeft Park

.2609

2.0BRN/WHT

SB2609

Right Rear ParklampEXTERIOR LIGHTING

(Page 2)

IGN4_MAX

IGN4_RLY

(Page 7)43

2509 DOOR_SW_ILL

2609 B B_ R_ PA RK 2 50 9 B B_ L_ PA RK

GRDBRK2

ATCBLT

MRK_RLY_P

LR_TURN_P LTURN_RLY_P618

RR_TURN_P

(Page 8)1320

BRAKE_ISO

RR_STOP_LP19

619 RTURN_RLY_P

IGN4_RLY_G

WIN_IGN4_P343

9 PARK_LP_P 18 LR_STOP_LP BRAKE_ISO_P17

SW_ILLUM ODDS_LP

450

R_TAIL_P L_TAIL_PRFR_PARK_P LFR_PARK_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-17

Power Distribution - (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010d

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 6

Tt ModuleTELL TALE

E14 Way Black GT150 Sealed F Conn

0.5PNK

39.

BRN641.

0.80.8

.641BRN

30M GTMXD SLDENGD3

B2

ENGINE CNTLSPcm

40M GTMXD SLD

IP CLUSTERIp Cluster

SA339

0.8.139PNK

PNK39.

PNK0.5

.39

0.5

TELL TALETt Module

14 Way Black GT150 Sealed M ConnE

SA441

SA139

BRN441.

0.5

INTERIOR LIGHTSHeadlamp Sw

PNK2.0

.339

PcmENGINE CNTLS

B10

40M GTMXD SLDC9

30F GTMXD

5

0016

Beta Agustin Velazquez GMT5600Power Dist (LMM)GMT560 X08

Wednesday, April 19, 2006

12:23:07 pm

$IVEDWORK/h83010d__001s ch ema ti c s he et 1

h83010d

C2 30M GTMXD SLD

BRN441.

0.5

.

0.8

441BRN

BRN641.

0.8

HVACAc Enable Rly

0.5

.441BRN

ENGINE CNTLSClutch Sw

30F GTMXDB2

0.5

TELL TALETrans Temp Gauge

.39PNK

40F GTMXD SLDB2

BRN641.

0.8

24M GTMXD SLDC8

24F GTMXD SLDC8

30M GTMXDA10

0.5

30F GTMXDA10

KEYLESS ENTRYRfa Mdl

PNK39.

0.5

.39PNK

BRN441.

0.8

PNK139.

HYD BRAKES

0.8

Ebc

441.

0.5

.806PPL

0.8

BRN

30F GTMXDB10

PPL806.

0.8

PNK2.0

.339

Pcm

339.

2.0PNK

PNK3.0

.339

ENGINE CNTLS

641BRN

PcmENGINE CNTLS

0.8

.

SA806

.441BRN

0.8

Brake SwBRAKES

Reverse SwEXTERIOR LIGHT

0.5

.441BRN

0.5PPL

806.

BATTERIESBattery Isolator

0.5PPL

806.

40F GTMXD SLDC9

30M GTMXD SLDC5

30M GTMXDB10

PNK39.

Drl RlyDRL .

0.5

SA39

0.5

PNK39

ENGINE CNTLSStart Neutral

Rev RlyPOWER MIRRORS

Htd Mirror SwLCT TRANSMISSION

.806PPL

0.5

30F GTMXD SLDC5

30F GTMXD SLD

IPD3

30M GTMXDB10

.806PPL

0.5

BRN641.

0.8

ENGINE CNTLSHi Idle Lp

BODY BUILDERIgn 3

Turnhaz SwEXTERIOR LIGHT

STARTING & CHARGINGStarter Rly

SA641

Htd Mirror RlyPOWER MIRRORS DRL

Drl Mdl

.139PNK

0.8

30F GTMXD SLDC2

BRN441.

0.5

.

2.0PNK

30M GTMXDB2

339

PNK139.

0.8

0.8BRN.641

IPC_IGN1_P

(Page 4)

ENG-2_P

VBATT_B VBATT_CVBATT_AVBATT_D

T ELL TA LE _P T EMP _G AG E_ P

HTR_LAMP339

(Page 1)

GAUGES_P

RFA_IGN1_P

ILLUM_PDRL_RLY_P

BU_MAN2_P BU_LCT_P

TCC_P

H_MIR_RLY_P DRL_P

(Page 1)

TURN_P

IGTRNHAZ_P139

STARTRLY2_P 806 C RANK_P

START_P

(Page 1)

EBC_CRANK_P

BB_PH_MIR_SW_P

BAT_ISO_P641

CR_CLU_P

(Page 1)

AUX_WIRE_P

BRAKE_P

(Page 1)

HVAC_R_P

HIS_LED_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-18

Power Distribution - (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010d

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 7

.43

1.0YEL

Ip ClusterIP CLUSTER

Wiper MotorWIPER/WASHER

SB1020

0.8PNK

1020.

SA540

1.0ORN

540.

540.

1.0ORN

SC540

TRANSMISSIONTcm

Wiper SwitchWIPER/WASHER

1.0YEL

43.

B1122F GTMXD

43.

1.0YEL

ORN540.

1.0

IP CLUSTERIp Cluster

Pass Dr Lck SwPWR DR LK

A9

30F GTMXDA9

SB1020

30M GTMXD

.540ORN

22M GTMXDB11

1.0

0.5

.1020PNK

1.0

.540ORN

TcmTRANSMISSION

SA43

ORN1.0

.540

YEL43.

1.0

30F GTMXD SLD

IPC4

22M GTMXDB11

ORN440.

1.0

1.0ORN

540.

PWR DR LKDrv Dr Lck Sw

KEYLESS ENTRYRfa Mdl

30M GTMXD SLDENG

C4

.540ORN

1.0

1.0

.540ORN

1.0

.540ORN

Dr Lk RlyPWR DR LK

POWER MIRRORSMirror Switch

PcmENGINE CNTLS

.1020PNK

0.8

YEL43.

1.0

7

Beta Agustin Velazquez GMT5600Power Dist (LMM)GMT560 X08

Wednesday, April 19, 2006

12:23:07 pm

$IVEDWORK/h83010d__001s chem at ic s he et 1

h83010d5

001

SA1020

1.0

.

Rear Heater RlyREAR HEATER

540ORN

0.5

.1020PNK

1020PNK

0.8

ENGINE CNTLSPcm

PNK1020

PcmENGINE CNTLS

.

.

0.8

ORN540.

1.0

1.0

.540ORN

1.0ORN

440.

TcmTRANSMISSION

.1020PNK

0.8

22F GTMXDB11

1.0ORN

440.

ENGINE CNTLSPcm

1020.

0.5PNK

1.0

1.0

.

ORN540.

440ORN

SA440

.540ORN

1.0

PNK0.8

.1020

.

0.8PNK

1020

SB540

TCM_BAT_PP2

(Page 5)

IGN4_RLY

IGNSW_D2_P

IGN4_P

(Page 1)

WA SH_P WIPE_ P

LMM_IGN0_GP LMM_IGN0_GP

TCM_BAT_PP

PASS_LK_P

LK_RLY_P RFA_P

DRV_LK_PMIR_SW_P

(Page 2)

ACCY_P

R_HVAC_P

LCT_IGN0_P LMM_IGN0_P

IPC_IGN_P

(Page 1)

TRANS_P(Page 4)

PCM-B_P

ACTPWR_B

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-19

Power Distribution - (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010d

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 8

DATA LINK CONNData Link Conn

IPB1030F GTMXD SLD

0.5PNK

239.

0.5

.239PNK

BLU LT0.5

.1320

30F GTMXD SLDA4

30M GTMXDB5

IP

30M GTMXDA8

.BRN

541

0.5

CRUISE CONTROLCruise Cntl Sw

0.5

.541BRN

PNK239.

0.8

BODY BLDR/SCH BUS

Stop

AUX POWERAux Power #1

40M GTMXD SLDD3

ORN1.0

.840

Chmsl Iso RlyEXTERIOR LIGHT

SA1320

0.5

.1320BLU LT

EbcHYD BRAKES

239.

0.5PNK

PcmENGINE CNTLS

30M GTMXD SLDENGB10

Maf SenseENGINE CNTLS

HYDRO BRAKESReservoir Air Press Sw

439.

0.8PNK

1320.

0.5BLU LT

0.5

ENG30M GTMXD SLDA1

.239PNK

AUX POWERCigar Lighter

30M GTMXD SLDENGA5

SD541

0.8

.439PNK

Aux Power #2AUX POWER

D340F GTMXD SLD

PcmENGINE CNTLS

0.5

.541BRN

PNK439.

R

0.8

40M GTMXD SLDA6

16F GT280

840.

1.0ORN PNK

0.8

.239

Tcs LedBRAKES

0.5PNK

239.

0.5

.541BRN

ORN840.

1.0

40F GTMXD SLDA6

0.8

.639PNK

SC239

1.0

.840ORN

HEATED FUELHeated Fuel Rly

.439PNK

0.8

B530F GTMXD

A4 ENG30M GTMXD SLD

16M GT280 R

541.

0.5BRN

0.8PNK

239.

PNK639.

SB439

0.5

PNK239.

0.5

IPA5 30F GTMXD SLD

SA239

SA439

B13

IP CLUSTERDPF Switch

B13

8

Beta Agustin Velazquez GMT5600Power Dist (LMM)GMT560 X08

Wednesday, April 19, 2006

12:23:07 pm

$IVEDWORK/h83010d__001s chem at ic s he et 1

h83010d5

001

SA840

A1 IP

30F GTMXD SLD

.

0.8

30F GTMXDA8

PNK439 .439

PNK0.8

ENGINE CNTLSGlow Plug Cntrl

.239PNK

0.5

Pto RlyUPFITTER PROV

PNK0.8

.239

439.

0.8PNK

Overdrive Defeat Sw LedLCT TRANSMISSION

1.0

.

UPFITTER PROVPto Enable Sw

840ORN

BB_STOP_P1320

BRAKE_ISO

(Page 5)

1320 BRK_NO_PCHMSL_RLY_P

541 DPF_LED_P

PTO1_RLY_P239

(Page 1)

PCM-I_P

IGNA_RLY_P

(Page 4) LMM_IGN1_P

EBC_IGN1_P

CIGAR_P840

POST

(Page 2)

AUX2_PAUX1_P DLC_P HTR_RLY_D_P

ODDS_LED_P

HFUEL_R3_P

CRUISE_P

TCS_SW_P

EAC_RLY_P

(Page 1)

CHASSIS_P

ENG-4_P

(Page 4)

PTO_SW_P

ENG-1_P

(Page 4)

LMM_MAF_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-20

Power Distribution - (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010d

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Driver only Dual SIR

Driver onlyDual SIR

Panel Set: 9

YEL0.5

1139.

C

Dome Lamp

INTERIOR LIGHTS

16M GT280

0.8

.40ORN

B630F GTMXD

16F GT280

E

SB1139

YEL.1139

0.5

16M GT280E

16F GT280C

ORN40.

0.8

SIRSdm

YEL.1139

0.5

Beta Agustin Velazquez GMT5600Power Dist (LMM)GMT560 X08

Wednesday, April 19, 2006

12:23:07 pm

$IVEDWORK/h83010d__001s ch em ati c s he et1

h83010d5

0019

SIRPsir Defeat Sw

SA40

YEL.1139

0.5

30M GTMXD

B6

.YEL

0.5

1139

Psir Delete Resistor

INTERIOR LIGHTS

Rear Dome Lamp

SIR

1139.YEL

0.5

SA1139

0.5

40.ORN

YEL.1139

0.5

0.8

.40ORN

ORN40.

0.5

YEL.1139

0.5

SIR_OHM_P PSIR_P

SIR_P

(Page 1)

SDM_P

(Page 2)

COURTESY_P

RR_DOME_PDOME_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-21

Power Distribution - (LF8) 7.8L L6 Isuzu 6H - Diesel

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

10A

10A

12182113

12182113

10A

12182112

B

A

START

BB

CHASSIS

BB 20A

12182112

A

A

10A

A

A

B 10A

PCM-I

B

12182114

10A

12182112

BRAKETURN/BACKUP A

12182113 12182112

AUX WIRE RLY

12182114

15A

AXLE

15A

BB

GAUGES

B

10A 20A

A ASIR

A

A

15A

A

B

ILLUM

12182112

TRANS

20A

HTR/AC

B

12182114

12182112 12182112

B

AA

IGN4

SIR

Panel Set: 1

STEERING COLUMN

110-1114-3

100-1

IGNSW

TRNHZ

HORN

091-1

26062266010-1

CRUISE

PAGE 8A-

047-2

KEYMNDR

040-1

BEAMSWWIPER

034-1

INTERIOR LIGHTSHead Lamp Sw

BRN141.

1.0

INTERIOR LIGHTINGDimmer Signal Dist

5.0

.1390WHT

.300ORN

5.0

GMT5600Power Dist (LF8)GMT560 X08

12:19:13 pm

$IVEDWORK/h83010b__001s chem at ic s he et 1

h83010b8

001Wednesday, April 19, 20061

Beta Agustin Velazquez

SA300

.

5.0ORN

300

BRN141.

1.0

HvacHVAC

1.0BRN

141.BRN

1.0

.141

1.0

.141BRN

CRANK

D2

BATT 2

D5

BATT 1

D6

IGN4/ACCY

S T A R T

R U N

O F F

L O C K

A C C E S S O R Y

Str Col Asm - Ign Sw

C1

IGN0

C5

IGN1

C6

IGN3

D1

N5N7

K8

L1L3 L5 L7

M4

N1N3J1J3J5J7

K2K4 K6H4 D2

E1

SA141

141BRN

1.0

.

HVACTemperature Motor

5.0

.5YEL

REAR DEFOGGERRear Defog Cntl

.4BRN

5.05.0PNK

3.

5.0ORN

300.

REAR HEATERRear Heater Rly CoilVacuum Pump

HVAC

5.0RED

342.

DIMMER44

8 ILLUM

1139

SIR_P

(Page 9)

R_HTR_RLY_P

IGN3_MAXI

(Page 2)

IGN1_MAXI

(Page 2)242

HVAC_ P TEMP_CNTL_ P VA C_PUMP_P H VA C_FOG_P

(Page 8)

CHASSIS_P

541

IGN4_P

43(Page 7)(Page 8)

241

AXLE_P

641

AUX_WIRE_P

(Page 6)441

BRAKE_P

(Page 6)

TRANS_P

1020(Page 7)

439

PCM-I_P

(Page 9)

GAUGES_P

39(Page 6)

139

TURN_P

(Page 6)

START_P

806(Page 6)

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-22

Power Distribution - (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010b

A APARK

1218211412182114

A

B10A

COURTESYA

B B

A

15A

12182113

RADIO/CHIME

B B B

HAZARD

B

AA

10A20A

MARKER LP

12182112

25A

PWR ACCYTRN/HAZ

12182113

20A

12182114

A

B B15A

12182116

STOP

20A

12182114

20A

DRLA

TRLR

12182114 12182114

20A

PWR POST A

20A

12182112

CHMSL

B B

A

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

B12065933

A

40A

HEADLAMP

B

A

12065935

30A

A AIGN1

A

40A

LIGHTING

1207784312065933

40A

12065934

50A

BRAKE LP - FAM 3

B60A

IGN3

B12065935

A

60A

BATT/HAZ

B12065934

A

B

IGN4

B

ELEC BRK - FAM 2

12065933

A

50A

HVAC

B

Panel Set: 2

SA1142

Drl DiodeDRL

Starter RlySTARTING & CHARGING

Battery PositiveBATTERIES

Brake SwitchBRAKES

.

5.0

142RED

242RED

5.0

.

EXTERIOR LIGHT

.1340

ORN1.0

Turn Hazard Sw

.1140ORN

0.8

0.8

.1140ORN

Ipc (Batt)IP CLUSTER

Head Lamp SwEXTERIOR LIGHT

CHIME MDLChime Mdl

Head Lamp SwEXTERIOR LIGHT

.1342RED

3.0

SA142

EXTERIOR LIGHTTrailer Rlys

SA242

RED.1542

3.0

Marker Lp RlyEXTERIOR LIGHT

E5 E7

F4 F8

G1G3 G5G7C1C3C5C7

D6

E3

Block Asm-Ip Pwr 1

B4

Blow Motor Rly

HVAC

5.0RED142.

RED142.

5.0

ABMaxi Ring Term

3.0RED1142.

RADIORadio Pwr

RED5.0

.242

1140ORN.

0.8

8

0012

Beta Agust in Velazquez GMT5600Power Dist (LF8)GMT560 X08

Wednesday, April 19, 2006

12:19:13 pm

$IVEDWORK/h83010b__001sch ematic sheet1

h83010b

SA1140

EXTERIOR LIGHT

Brake Lp Rly

ORN1140.

0.8

RED1142.

3.0

A2 A3 A4 A5 A6 A7 A8

MAXBATT

Maxifuse - Block Asm

A1

CHIME_PRADIO_P

MRK_LPS_P

IPC1_P

COURTESY_P

(Page 8)40

HVAC_MTR_P542 TRLR_LP_P

242

(Page 1)

IGN1_MAXI

342

IGN3_MAXI

(Page 1)

1242

IGN4_MAX

(Page 5)

HEADLAMP_P1142

1 MAXICTR_P

STARTRLY_P

840

POST

(Page 8)540

ACCY_P

(Page 7)640 TRLR_HAZ_P DRL_BEAM_P340140 BRK_SW_P HAZ_P1040 PARK_P240

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-23

Power Distribution - (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010b

ABS 2

20A

12077842

Maxi

HORN

40A

STUD A

40A B

ABS 1

A

B

STUD B

Maxi Maxi Maxi

B

A

B

ENGINE

Maxi

12065933

A

40AB

12065934

Maxi

B50A

ABS 3

12065933

E/A PUMP

30A 30A

A

1206593312065932

A

B12065932

B

A A

12065933

40AMaxi

A

Maxi

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

18A-2

HORN RLY

FUEL PUMP RLYSTARTER RLY

40A-1

Panel Set: 3

Underhood Distribution Center

30A/E-1

PTO RLY22A/C-1

PAGE 8A-12146281

Loop Anchor

LB1042

UHBATT

J1-M3 J1-M4 J1-M5 J1-M6

J2-AJ3-A

J1-M1J1-M2A B

LA1042

Horn RlyHORN

Loop Anchor

TRLR WRGTrailer Wiring

1.0ORN

740.

3.0

.1642RED

RED

1042.

5.0

A4

1.0ORN

740.

Loop Anchor

LA740

30M GTMXD SLDD4

5.0

.1042

RED

30M GTMXD SLDD4

D430F GTMXD SLD

RED1642.

3.0

.42

RED3.0

Ebc / RlyBRAKESHYDRO BRAKES

Ebc

5.0

.1042RED

3.0

.42RED

Elec Air CompHYDRO BRAKES

BATTERIESBattery Positive

1042.

5.0RED

3.0

.442RED

A2

3.0RED

1642.

A430F GTMXD SLD

D4

Horn RlyHORN

LB740

Loop Anchor

s c he ma ti c s he et 1

h83010b8

0013

Beta Agustin Velazquez GMT5600Power Dist (LF8)GMT560 X08

Wednesday, April 19, 2006

12:19:13 pm

$IVEDWORK/h83010b__001

RED

ORN1.0

.740

3.0

.1642

.740ORN

1.0

SA1642

1840.

3.0ORN

A2

3.0RED

1642.

EbcHYDRO BRAKES

UHDIST_P

(Page 4)

BUSBAR_P

1 1

BUSBAR2_P

(Page 4)

EBC_P442

(Page 4)

IGN_A_P

IGN_B_P

(Page 4)

EAC_MTR_P

A BS _T RL R_ P H YD _E BC _P

H OR N_ P H OR N_ RL Y_ P

EBC2_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-24

Power Distribution - (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010b

B

HTD FUEL ENG-4

10A12092079

25A

12092078

B

ENG-3

B

AA A

B 10A

12092079 12092078

A

12092079

B

A/C COMP ENG-1

B

PCM-B

15A15A

TCM

12092078

A

B B

A

30A

REAR DEFOG A ENG-2

15092075

A

10A

12092077

B

A

15A20A

12092078

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

IGNA RLY

12193604

IGNB RLY

12088567

Panel Set: 4

J1-J8

J1-K5J1-K7

J1-L8

J1-H1 J1-H3 J1-H5J1-H7

J1-J2 J1-J4 J1-J6

J1-F5J1-F7

J1-G2 J1-G4 J1-G6J1-G8

Uh - Block Asm

J1-F1 J1-F3

.2000PPL

5.0

40F GTMXD SLDC7

1.0

.1440ORN

.2000PPL

5.0

.1093PPL

2.0

HVACEnable Rly

ORN440.

3.0

PPL1093.

2.0

GND DIST

Gnd Zone #2B

RED1.

5.0

.

0.8ORN

1240

Loop Anchor

LA1440

C6

D4 D6

85

30 3086

8785

Uh - Ign Rlys

A4 A6

B4B6

C4

Agustin Velazquez GMT5600GMT560 X08

Wednesday, April 19, 2006

12:19:13 pm

$IVEDWORK/h83010b__001s ch em ati c s he et1

h83010b8

001Power Dist (LF8)

4

Beta

87

86

RED1.

5.0

1440.

1.0ORN

40M GTMXD SLDC7

Htd Fuel RlyHTD FUEL/WIF

PPL2000.

5.0

REAR DEFOGGERRear Defog Cntl

GND DIST

Gnd Zone #2B

LA2000

5.0PPL

2000.

Loop Anchor

Loop Anchor

LB2000

440

TCM_P

(Page 7)(Page 7)

PCM-B_P

440

239

ENG-1_P

(Page 8)

ENG-4_P

(Page 8)

ENG-3_P

(Page 5)

539339

(Page 6)

ENG-2_P

639

1042

(Page 3)

IGN_B_P

(Page 3)

BUSBAR_P

(Page 3)

BUSBAR2_P

2 50 I GN A_ RL Y_ G 2 50 I GN B_ RL Y_ G

HVAC_RLYB_PHFUEL_1_P DEFOG_P

439

IGNA_RLY_P

(Page 9)1042

IGN_A_P

(Page 3)

439(Page 9)

IGNB_RLY_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-25

Power Distribution - (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

A

B

AA

B

12182112 12182112 12182116 12182112

A A

B

A

B 25A

A

BB

ONST AR RH PARKL AMP1218211315A

A

B

LH PARKLAMP

10A

PWR WINDOW RADIO U

10A

BRAKE ISO

10A

L-RR TRUCK

10A12182112 12182112 12182112

10A

R-RR TRUCK

10A B

BRAKE LAMP RLY

MARKER LAMP RLY

CHMSL RLY

110A-2

12129833 PAGE 8A-

HEATED FUEL RLY

HEATED MIRROR RLY

I/P Distribution/Relay Center

110A-2

DRL RLY

Panel Set: 5

LH TURN TRAILER RLY

20B-3

102A-1

RH TURN TRAILER RLY110A-4

110A-2

23B-1ECU CONTROL RLY

110A-2

147B-1

.2509BRN

0.5

8

0015

Beta Agustin Velazquez GMT5600Power Dist (LF8)GMT560 X08

Wednesday, April 19, 2006

12:19:13 pm

$IVEDWORK/h83010b__001s ch em ati c s he et1

h83010b

1.0BRN/WHT

.2609

1.0PNK

539.

Brake SwitchBRAKES

Blunt CutBA2040

Left Front ParklampEXTERIOR LIGHTING

EXTERIOR LIGHTHead Lamp Sw

B4

Window SwitchPOWER WINDOW

2.0

2509.BRN

5.0

.755

BLK

40F GTMXD SLDC12

0.8

.2040ORN

1.0

2609.BRN/WHT

1.0

618.YEL

40M GTMXD SLDC12

1.0

2509.BRN

Gnd Zone #4BGND DIST

1.0

2609.BRN/WHT

BRN.2509

1.0

S6

S7

S8

T3

T4

R1

R2 R4

R5

R6R8

S3

S4

S5

Ip2 - Block Asm

85

3086

Ignition 4

12193604

87

L30

L85

L86

L87

Right Rear ParklampEXTERIOR LIGHTING

1.0

2509.BRN

5.0

.755BLK

INTERIOR LIGHTINGDoor Switch Illum

RED1242.

5.0

Turn Haz SwEXTERIOR LIGHT

Switch Illum

SB2609

INTERIOR LIGHTING

SH2509

BODY BUILDERRight Park

2.0BRN/WHT

.2609

.539PNK

Left Rear ParklampEXTERIOR LIGHTING

1.0

Marker Lamp RlyEXTERIOR LIGHTING

1.0

619.GRN DK

1.0

.539PNK

Turn Haz SwEXTERIOR LIGHT

EXTERIOR LIGHTINGRight Front Parklamp

EXTERIOR LIGHTRr Turn Lp

SA2609

B4

BODY BUILDERLeft Park

Reverse RlyMD TRANSMISSION

Pto RlyUPFITER PROV

1.0

2509.BRN

1.0

2609.BRN/WHT

.2509

0.8BRN

1.0

Lr Turn LpEXTERIOR LIGHT

BRN/WHT.2609

LB539Loop Anchor

Loop Anchor

LA755

LCT TRANSMISSIONOverdrive Defeat Sw Illum

SE2509

IGN4_RLY

(Page 7)43

(Page 2)

IGN4_MAX

2509 DOOR_SW_ILL

PTO_RLY_PREV_P

ENG-3_P

(Page 4)

17 BRAKE_ISO_P

BRAKE_ISO

1320(Page 8)

19 RR_STOP_LP

343 WIN_IGN4_P

PARK_LP_P9 LR_STOP_LP18

IGN4_RLY_G450

MRK_RLY_P

L_TAIL_P2509

ODDS_LPSW_ILLUM

R_TAIL_P BB_L_PARKBB_R_PARK2609 LFR_PARK_P

LR_TURN_P RR_TURN_P

RFR_PARK_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-26

Power Distribution - (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 6

B240F GTMXD SLD 0.8

.339PNK

Rfa MdlKEYLESS ENTRY

0.8

.806PPL

BRAKESBrake Sw

MD TRANSMISSIONReverse Rly

40M GTMXD SLDENGD1

BRN.641

0.8

DRLDrl Rly

40F GTMXD SLDA6

40M GTMXD SLDC9

.339PNK

0.5

.441BRN

0.8

SA39

BRN641.

0.8

30F GTMXDB10

BRN441.

0.5

PNK0.8

.139

0.8

.806PPL

POWER MIRRORSHtd Mirror Rly

Reverse RlyLCT TRANSMISSION

Clutch SwSTARTING & CHARGING

40F GTMXD SLDIP

D1

ENGD330M GTMXD SLD

Loop Anchor

LA339

139PNK

0.8

.

0.5

.39PNK

SA441DRL

Drl Mdl

0.5

.39PNK

30F GTMXDB10

Exhaust Brake/Rstr SolEXH BRAKE/RSTR

Brake RlyAIR BRAKES

0.5

.441BRN

6F GT280 SLDB

SA339

0.5PNK

39.

0.5PPL

806.

Htd Mirror Sw

PNK339.

0.8

POWER MIRRORS

806.

0.5PPL30F GTMXD SLD

IPD3

40F GTMXD SLDC9

0.5BRN

441.

0.5PNK

39.

139.

0.8PNK

0.8BRN

441.

30M GTMXDA10

B1030M GTMXD

0.8BRN

641.

BRN641.

0.8

BRN441.

0.5

6M GT280 SLDB

.806PPL

0.5

SA641

0.8

PNK139.

0.8

.339PNK

30F GTMXDB2

SA139

PNK39.

0.5

.

0.5

.441BRN

0.5PNK

39

Turnhaz SwEXTERIOR LIGHT

PPL806.

0.5

Reverse SwHYD BRAKES

EbcEXTERIOR LIGHT

0.8PNK

339

40M GTMXD SLDA6

.

Clutch SwENGINE CNTLS

C5ENG30M GTMXD SLD

C5

Crank MD TRANSMISSION

IP30F GTMXD SLD

TELL TALETrans Temp Gauge

HTD FUEL/WIFHeated Fuel Rly

Ign 3BODY BUILDER

0.8

.441BRN

Starter RlySTARTING & CHARGING

30M GTMXDB2

TELL TALETt Module

Hi Idle SwENGINE CNTLS

BRN641.

0.8

30F GTMXDA10

30M GTMXDB10

40M GTMXD SLDB2

Headlamp SwINTERIOR LIGHTS

0.5

.

SA806

6

Beta Agust in Velazquez GMT5600Power Dist (LF8)GMT560 X08

Wednesday, April 19, 2006

12:19:13 pm

$IVEDWORK/h83010b__001sch ematic sheet1

h83010b8

001

39PNK

BRN0.8

.641

0.5

.39PNK

PNK139.

0.8

IpcIP CLUSTER

PNK339.

0.8

0.8

.641BRN

N_START_P806

806 CRANK2_P

ILLUM_P

HFUEL_R1_P

(Page 4)

ENG-2_P

EXHBRAKE_P

STARTRLY2_PBU_MD_P BU_LCT_PBU_MAN3_P

IPC_IGN1_P

EBC_CRANK_P

BB_P

CR_CLU_P

DRL_RLY_ P TELLTALE_ P

H_MIR_SW_P

H_MIR_RLY_PRFA_IGN1_P(Page 1)

BRAKE_P

HIS_LED_P

TCC_P

EBC_IGN3_P

TEMP_GAGE_P

(Page 1)

GAUGES_P

(Page 1)

AUX_WIRE_P

DRL_P

IGTRNHAZ_P139

(Page 1)

TURN_P

(Page 1)

START_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-27

Power Distribution - (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 7

SL440

.540ORN

1.0

.1020PNK

0.8

GMT560 X08

Wednesday, April 19, 2006

12:19:13 pm

$IVEDWORK/h83010b__001s ch em ati c s he et1

h83010b8

001

1.0

.540ORN

7

Beta Agustin Velazquez GMT5600Power Dist (LF8)

PWR DR LKPass Dr Lck Sw

0.8PNK

1020.

YEL43.

1.0

ORN1.0

30F GTMXD SLD

IPA2

.440

ORN540.

1.0

1.0

.540ORN

KEYLESS ENTRYRfa Mdl

ORN540.

1.0

SERIAL DATASdg Mdl

SA540

.43YEL

1.0

1.0

.440ORN

IP CLUSTER

TcmLCT TRANSMISSION

ORN1.0

Ipc

EcuENGINE CNTLS

.440

EcuENGINE CNTLS

TRANSMISSIONTcm

ORN1.0

.440Dr Lk Rly

PWR DR LK

TcmMD TRANSMISSION

1.0

.540ORN

22M GTMXDB11

PNK1020.

0.50.5

PNK1020.

Tt Module

ORN440.

0.8

TELL TALE

SA440

1.0

.540ORN

ORN440.

3.0

1020PNK

0.8

1.0ORN

440.

.

ORN540.

1.01.0

.540ORN

0.8

.1020PNK

DaMUENGINE CNTLS

0.5

.1020PNK

22F GTMXDB11

30M GTMXD SLDC4 ENG

22F GTMXDB11

0.8PNK

1020.

SA43

TcmTRANSMISSION

1.0

.540ORN

Wiper SwitchWIPER/WASHER

1.0

.43YEL

ENGINE CNTLSEcu

ORN540.

1.0

ORN540.

1.0

IP CLUSTERIpc

SA440

30F GTMXDA9

SC540

0.8PNK

1020.

ENGINE CNTLSEcu

1.0

.440ORN

TcmTRANSMISSION

1.0

.440ORN

Mirror SwitchPOWER MIRRORS

1.0ORN

540.

Rear Heater RlyREAR HEATER

SERIAL DATASdg Mdl

Ignition SenseDTC

YEL43.

1.0

B11 22M GTMXD

A930M GTMXD

.440

3.0ORN

SB540

30M GTMXD SLDENG A2

1.0

.440ORN

Drv Dr Lck SwPWR DR LK

WIPER/WASHERWiper Motor

MD TRANSMISSION

1.0

.440ORN

Tcm

SA1020

440.

1.0ORN

ORN540.

1.0

.1020PNK

0.5

30F GTMXD SLD

IPC4

.1020PNK

MD TRANSMISSIONTcm

0.5

ORN540.

1.0

ORN440.

1.0 SB1020

TRANSMISSIONTcm

YEL43.

1.0

MD_BAT_P

ECU_BATT_P

PCM-B_P

(Page 4)

TCM_BAT_PP2

DAMU_PHTR_LAMP2

ECU_RLY_2ECU_RLY_1TCM_BAT_PSHIFT_BAT_P

(Page 4)

TCM_P

TCM_BAT_PP

MD _CL2 SHIFT_IGN 0_P

DRV_LK_PMIR_SW_P

PASS_LK_P

LK_RLY_P RFA_P

MD_IGN0_P ECU_IGN0_P

IP C_ IG N_ P S DG_ 2_ P

(Page 1)

TRANS_P

LCT_IGN0_P

(Page 2)

ACCY_P

R_HVAC_P

IGN4_RLY

(Page 5)

IGNSW_D2_P

SDG_1_P

WIPE_PWASH_P

(Page 1)

IGN4_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-28

Power Distribution - (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 8

0.5

BRN541.

0.5

.541BRN

IP CLUSTERDPF Switch

ORN840.

2.0

.241

1.0

Wednesday, April 19, 2006

12:19:13 pm

$IVEDWORK/h83010b__001s ch em ati c s he et1

h83010b8

001Power Dist (LF8)

BRN

8

Beta Agustin Velazquez GMT5600GMT560 X08

Batt +DTC

2.0

.241BRN

AUX POWERAux Power #2

30F GTMXDA8

0.8PNK

239.

EXTERIOR LIGHTBrake Lp Rly

0.5

0.5

.1320BLU LT

30M GTMXD SLDB10

.1320

BLU LT

1.0

.840ORN

30F GTMXD SLDB10

G8M GT280 SLD

16F GT280R

StopBODY BUILDER

40M GTMXD SLDD3

R

SA1320

16M GT280 SLD

BRN541.

0.5

0.5

.541BRN

DATA LINK CONNData Link Conn

ENGINE CNTLSEcu

.241BRN

2.0

0.5

.239PNK

1320.

0.5BLU LTBLU LT

1320.

0.5

A12

30M GTMXD SLD

A1

840.

1.0ORN

0.5

.239PNK

EXTERIOR LIGHTChmsl Iso Rly

16F GT280 SLDR

ORN840.

1.0

.

1.0ORN

840

B13

8F GT280 SLDG

REAR AIR SUSPAir Susp Sw

239PNK

0.5

.

40F GTMXD SLDD3

A12

SD541

Cigar LighterAUX POWER

2Speed Rly2 SPEED REAR AXLE

B13

PNK639.

HYDRO BRAKESReservoir Air Press Sw

0.8

ORN1.0

.840

4M MP280 SLDB

B5

0.5

.541BRN

30M GTMXD

SA840

Pto Enable SwUPFITTER PROV

40M GTMXD SLDC6

30F GTMXD SLDA1

Tcs LedBRAKES

PNK239.

0.5

4F MP280 SLDB

241BRN

2.0

.

639PNK

0.5

.

SC239

30F GTMXDB5

2.0

Aux Power #1AUX POWER

BRN241.

AIR BRAKESAir Dryer

0.5BRN

541. 2 SPEED REAR AXLEElec 2Sp Sw

R 16M GT280

Cruise Cntl SwCRUISE CONTROL

30M GTMXDA8

LCT TRANSMISSIONOverdrive Defeat Sw Led

241.

2.0BRN

.239PNK

0.8

C6

.541BRN

0.5

40F GTMXD SLD

BRN241.

2.0

CHMSL_RLY_P

1320 BB_STOP_P

1320 BRK_NO_PBRKLP_RLY_P

BRAKE_ISO

(Page 5)

AIR_DRY_P

541 DPF_LED_P

541

SERIAL_P

ENG-1_P

(Page 4)

840 CIGAR_P (Page 1)

AXLE_P

CRUISE_P

(Page 4)

ENG-4_P

ODDS_LED_P

AUX2_P

(Page 2)

POST

AUX1_P DLC_P

2SP_LED_PEAC_RLY_P

CHASSIS_P

(Page 1)

TCS_SW_PAIR_SUSP_P

PTO_SW_P2SP_RLY_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-29

Power Distribution - (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 9

Dual SIRDriver only

Dual SIR Driver only

SB1139

0.8

.439PNK

PNK0.8

.439

0.5

1139.YEL

PNK439.

0.8

YEL.1139

0.5

1139.YEL

0.5

0.5

1139.YEL

0.5PNK

439.

0.8PNK

439.

0.5

40.ORN

.439PNK

0.5

0.8

.439PNK

16F GT280C

Psir Defeat SwSIR

ORN40.

0.8

16M GT280E

9

Agustin Velazquez GMT5600Power Dist (LF8)GMT560 X08

Wednesday, April 19, 2006

12:19:13 pm

$IVEDWORK/h83010b__001s chem at ic s he et 1

h83010b8

001 Beta

0.8

.439PNK

INTERIOR LIGHTSRear Dome Lamp

16M GT280C

E

0.5

1139.YEL

16F GT280

SA1139

YEL.1139

0.5

ENGINE CNTLSGpcm

A640F GTMXD SLD

PNK439.

0.8

Dome LampINTERIOR LIGHTS

EbcHYD BRAKES

PNK439.

0.8

Psir Delete ResistorSIR

SdmSIR

SA40

ENGINE CNTLSEcu

YEL.1139

0.5

1139.YEL

0.5

IP

30F GTMXD SLDA4

ENG

30M GTMXD SLDA4

.40ORN

0.8

SB439

439.

0.8PNK

40.

0.5ORN

SA439SA439

40M GTMXD SLDA6

30M GTMXDB6

30F GTMXDB6

0.8PNK

439.

PNK439.

0.8

ENGINE CNTLS

DaMU

.40ORN

0.8

DAMU_IGN1

HTR_RLY_D_P2

SIR_OHM_P PSIR_P

(Page 4)

IGNB_RLY_P

(Page 1)

SIR_P

SDM_P

RR_DOME_PDOME_P

(Page 2)

COURTESY_P

IGNA_RLY_P

(Page 4)

ECU_IGN1_P

EBC_IGN1_P

(Page 1)

PCM-I_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-30

Power Distribution - (LF6) 7.2L L6 Caterpillar ® C7 - Diesel

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010c

10A

10A

12182113

12182113

10A

12182112

B

A

10A

START

BB

CHASSIS

BB 20A

12182112

A

A

10A

A

A

B 10A

PCM-I

B

12182114

10A

12182112

BRAKETURN/BACKUP A

12182113 12182112

AUX WIRE RLY

12182114

15A

AXLE

15A

BB

GAUGES

B

20A

A ASIR

A

A

15A

A

B

ILLUM

12182112

TRANS

20A

HTR/AC

B

12182114

12182112 12182112

B

AA

IGN4

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

100-1

Panel Set: 1

114-3

IGNSW

040-1

091-1

26062266

110-1TRNHZKEYMNDR

WIPER

034-1

BEAMSW

047-2SIR

PAGE 8A-STEERING COLUMN

CRUISEHORN

010-1

PNK

5.0

.3

L3 L5 L7

M4

N1N3N5N7J3J5J7

K2K4 K6 K8

L1

H4

J1

D2

E1

BRN4.

5.05.0

WHT1390.

C5

IGN1

C6

IGN3

D1

CRANK

D2

BATT 2

D5

BATT 1

D6

IGN4/ACCY

S T A R T

R U N

O F F

L O C K

A C C E S S O R Y

Str Col Asm - Ign Sw

C1

IGN0

HVACHvac

1.0

.141BRN

Rear Heater Rly CoilREAR HEATER

1.0

.141BRN

5.0RED

342.

.

5.0YEL5

BRN141.

1.0 1.0

.141BRN

5.0

.300ORN

Dimmer Signal DistINTERIOR LIGHTING

001Wednesday, April 19, 20061

Beta Agustin Velazquez GMT5600Power Dist (LF6)GMT560 X08

12:21:44 pm

$IVEDWORK/h83010c__001s ch em ati c s he et 1

h83010c7

5.0

.300ORN

.141BRN

1.0

SA141

ORN300.

5.0

SA300

INTERIOR LIGHTSHead Lamp Sw

Temperature MotorHVAC

Rear Defog CntlREAR DEFOGGERHVAC

Vacuum Pump

BRN141.

1.0

ILLUM8

SIR_P

(Page 9)1139

R_HTR_RLY_P

IGN3_MAXI

(Page 2)

IGN1_MAXI

(Page 2)242

HVAC_P TEMP_CNTL_P VAC_PUMP_P HVAC_FOG_P

(Page 6)

TURN_PGAUGES_P

(Page 6)39

(Page 8)

PCM-I_P

439

TRANS_P

(Page 7)1020 441

(Page 6)

BRAKE_P

4 4 D IM ME R

(Page 8)541

CHASSIS_PAXLE_P

241(Page 8)

641(Page 6)

AUX_WIRE_P IGN4_P

(Page 7)43

START_P

(Page 6)806139

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E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-32

Power Distribution - (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010c

ECM-B

30A 40A

12077842

B

A

Maxi

B40A

A

BB12065933

STUD A ABS 2 15319538A

30AB

Maxi

E/A PUMP

B

ECM-C

25A12065933B

12065933 20A

Maxi

25AB

15319538STUD B

Maxi Maxi Maxi Maxi

B 50A12065932

HORNA

B

Maxi

12065933

A

12065932ABS 3 ABS 1

40A

ENGINE

Maxi

Maxi

A AA

1206593440A

A A

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 3

HORN RLY 40A-1STARTER RLY

22A/C-1FUEL PUMP RLY18A-2PTO RLY

12146281Underhood Distribution Center

30A/E-1

PAGE 8A-

Horn RlyHORN

.

2.0ORN

1540

RED1642.

3.0

Ebc / RlyBRAKES

BATTERIESBattery Positive

D4 30M GTMXD SLD

HYDRO BRAKESEbc

3.0

.1642RED

1540ORN

2.0

.

A4

5.0RED

1042.

3.0

.1642RED

A2

Trailer WiringTRLR WRG

J1-M5 J1-M6 J1-M7 J1-M8

J2-AJ3-AUHBATT

J1-M1J1-M2 J1-M3 J1-M4A B

ORN1840.

3.0

3.0

RED1642.

RED1042.

5.0

LB740

RED42.

3.0

Loop Anchor

ORN740.

1.0

1642.

3.0RED

5.0

.1042RED

.

1.0ORN

740

EcuENGINE CNTLS

0 GMT560Agustin VelazquezBeta3

0017

h83010csheet1schematic $IVEDWORK/h83010c__001

12:21:44 pm

Wednesday, April 19, 200608 XGMT560

Power Dist (LF6)

Elec Air CompHYDRO BRAKES

A2

ENGINE CNTLSEcu

SA1642

Loop Anchor

LA740

HYDRO BRAKESEbc

RED3.0

.442

D430F GTMXD SLD

.42RED

3.0

30F GTMXD SLDD4 A4

.740ORN

1.0

Horn RlyHORN

D4

1.0

.740ORN

30M GTMXD SLD

SA1042

CAT_BA TA_P CAT_BA TB_P

1 1

BUSBAR2_P

(Page 4)

HORN_RLY_PEAC_MTR_P

EBC_P442ABS_TRLR_P

(Page 4)

BUSBAR_P

EBC2_P

(Page 4)

IGN_A_P

IGN_B_P

(Page 4)

HORN_P

UHDIST_P

HYD_EBC_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-33

Power Distribution - (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010c

IGNA RLY

12193604

IGNB RLY

12088567

PCM-B

B

A

15092075

AA/C COMPA

B B

1209207912092079

10A

12092079

A A

B10A

ENG-1

12092078

ENG-3

10A

REAR DEFOG

30AB 15A

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 4

.1RED

5.0

ORN1240.

0.8

.

5.0PPL

2000

Loop Anchor

LB2000

REAR DEFOGGERRear Defog Cntl

GND DISTGnd Zone #2C

J1-K7

J1-L8

J1-H5J1-H7

J1-J4 J1-J6J1-J8

J1-K5J1-F7

J1-G2 J1-G4 J1-G6J1-G8

J1-H3

Uh - Block Asm

J1-F1 J1-F3 J1-F5

A6

B4B6

C4C6

D4 D6

87

86

85

3086

8785

Uh - Ign Rlys

A4

HVACEnable Rly

Loop Anchor

LA2000

1093.

2.0PPL

GND DISTGnd Zone #2C

PPL5.0

.2000

C7

2.0

.1093PPL

40M GTMXD SLD

40F GTMXD SLDC7

2000

PPL5.0

.

4

0017

h83010csheet1schematic $IVEDWORK/h83010c__001

12:21:44 pm

Wednesday, April 19, 200608 XGMT560

Power Dist (LF6)0 GMT560Agustin VelazquezBeta

2000.

5.0PPL

RED5.0

.1

ENG-1_P

239(Page 8)

1042

(Page 3)

IGN_B_P

539(Page 8)

ENG-3_P

2 50 I GN A_ RL Y_ G 2 50 I GN B_ RL Y_ G

439

IGNA_RLY_P

(Page 8)

439(Page 8)

IGNB_RLY_P

1042

IGN_A_P

(Page 3)

(Page 7)440

PCM-B_P

HVAC_RLYB_P

DEFOG_P

BUSBAR_P

(Page 3)

BUSBAR2_P

(Page 3)

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-34

Power Distribution - (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

L A h

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010c

A

B

AA

B

12182112 12182112 12182116 12182112

A A

B

A

B 25A

A

BB

O NS TA R R H P AR KL AM P

12182113

15A

A

B

LH PARKLAMP

10A

PWR WINDOW RADIO U

10A

BRAKE ISO

10A

L-RR TRUCK

10A12182112 12182112 12182112

10A

R-RR TRUCK

10A B

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

MARKER LAMP RLY 110A-4

LH TURN TRAILER RLY

I/P Distribution/Relay CenterPAGE 8A-

110A-2

DRL RLY

HEATED MIRROR RLY

102A-1

CHMSL RLY

147B-1

RH TURN TRAILER RLY

BRAKE LAMP RLY110A-2110A-2

110A-2

12129833

Panel Set: 5

BA2040

Blunt Cut

SH2509

POWER WINDOWWindow Switch

0.5BRN

2509.

EXTERIOR LIGHTINGRight Front Parklamp

1.0BRN/WHT

.2609

SE2509

1.0

2609.BRN/WHT

Right Rear ParklampEXTERIOR LIGHTING

619

1.0GRN DK

.

SA2609

SB2609

GND DISTGnd Zone #4B

.2509

2.0BRN

YEL.618

1.0

BRN/WHT.2609

1.0

Overdrive Defeat Sw IllumLCT TRANSMISSION

B4

755.5.0

BLK

S5

S6

S7

S8

T3

T4

R1

R2 R4

R5

R6R8

S3

S4

12193604

Ignition 4

86 30

85

Ip2 - Block Asm

L30

L85

L86

L87

Lr Turn LpEXTERIOR LIGHT

EXTERIOR LIGHTINGLeft Front Parklamp

40F GTMXD SLDC12

BRAKESBrake Switch

ORN2040.

0.8

Rr Turn LpEXTERIOR LIGHT

.1242RED

5.0

EXTERIOR LIGHTINGLeft Rear Parklamp

1.0

2509.BRN

0.8

2509.BRN

Head Lamp SwEXTERIOR LIGHT

1.0

2609.BRN/WHT

BODY BUILDERLeft Park

Switch IllumINTERIOR LIGHTING

GMT560Agustin VelazquezBeta5

0017

h83010csheet1schematic $IVEDWORK/h83010c__001

12:21:44 pm

Wednesday, April 19, 200608 XGMT560

Power Dist (LF6)0

Right Park BODY BUILDER

5.0

Turn Haz SwEXTERIOR LIGHT

1.0

BLK755.

BRN.2509

BRN.2509

1.0

1.0

2609.BRN/WHT

Turn Haz SwEXTERIOR LIGHT

40M GTMXD SLDC12B4

Door Switch IllumINTERIOR LIGHTING

BRN/WHT2.0

2609.

Marker Lamp RlyEXTERIOR LIGHTING

BRN.2509

Loop Anchor

LA755

1.0

43(Page 7)

IGN4_RLY

IGN4_MAX

(Page 2)

RR_STOP_LP199 PARK_LP_P 18 LR_STOP_LP BRAKE_ISO_P17

(Page 8)1320

BRAKE_ISO

MRK_RLY_P

450 IGN4_RLY_G

WIN_IGN4_P343

DOOR_SW_ILL2509

BB_L_PARK2609 BB_R_PARK

ODDS_LPSW_ILLUM

2509RFR_PARK_P LFR_PARK_PR_TAIL_P L_TAIL_P

LR_TURN_P RR_TURN_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-35

Power Distribution - (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 6

0.5

.806PPL

.39PNK

0.5

PPL

0.5

.806

SA806

Clutch Sw

STARTING & CHARGING

BRN0.5

.441

SA441

SA39

0.8

.641BRN

EXTERIOR LIGHTTurnhaz Sw

0017

h83010csheet1schematic $IVEDWORK/h83010c__001

12:21:44 pm

Wednesday, April 19, 200608 XGMT560

Power Dist (LF6)0 GMT560Agustin VelazquezBeta

6

Headlamp SwINTERIOR LIGHTS

40M GTMXD SLD

C9

39PNK

0.5

.

Brake SwAIR BRAKES

A640F GTMXD SLD

PNK39.

0.5

D330M GTMXD SLD

B240F GTMXD SLD

STARTING & CHARGINGNsbu-Start Sw

30F GTMXD SLDD3

0.8

.

0.8

BRN641.

BRN641

0.8BRN

641.

30M GTMXDA10

B240M GTMXD SLD

BRN641.

0.8

.641BRN

0.8

DRLDrl Rly

SA139

Tt ModuleTELL TALE

30F GTMXDB10

0.8

.139PNK

PNK39.

0.5

POWER MIRRORSHtd Mirror Rly

40F GTMXD SLDC9

PNK139.

0.8

0.8BRN

441.

MD TRANSMISSIONReverse Rly

A640M GTMXD SLD

.441BRN

Reverse RlyLCT TRANSMISSION

Rfa Mdl

KEYLESS ENTRY

0.8

D1 40M GTMXD SLD

39.

0.5

.39PNK

0.5PNK

IP CLUSTERIpc

39.

0.5PNK

0.5

.441BRN

PPL806.

0.8

PPL806.

0.5

PNK139.

0.8

EbcHYD BRAKES

TELL TALETrans Temp Gauge

BODY BUILDER

Ign 3

B1030M GTMXD

0.8

.139PNK

40F GTMXD SLD

D1

AIR BRAKESBrake Rly

BRN441.

0.5

PNK139.

0.8

EXTERIOR LIGHTReverse Sw

Htd Mirror Sw

POWER MIRRORS

SA641

A1030F GTMXD

641

0.8BRN.

DRLDrl Mdl

.39PNK

0.5

806 CRANK_C_P

EBC_CRANK_P

START_P

(Page 1)

806 CRANK2_P

(Page 1)

BRAKE_P

TCC_P

(Page 1)

BRAKE_P

BU_MAN3_P

ILLUM_PIPC_IGN1_P

BU_LCT_PBU_MD_P

TURN_P

(Page 1)

BB_P

TEMP_GAGE_P

139 IGTRNHAZ_P

DRL_RLY_P TELLTALE_ P

EBC_IGN3_P

H_MIR_SW_P

(Page 1)

GAUGES_P

(Page 1)

AUX_WIRE_P

DRL_PH_MIR_RLY_P

RFA_IGN1_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-36

Power Distribution - (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

PCM-B P

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 7

30M GTMXDA9

SA1020

0.8ORN

440.

YEL43.

1.0

1.0

.540ORN

1.0

.440ORN

PWR DR LKDrv Dr Lck Sw

ORN540.

1.0

30F GTMXD SLDA2 0.5

.1020PNK

440.

1.0

Sdg MdlSERIAL DATA

ORN

1.0

ORN540.

YEL43.

1.0

B11

ORN540.

1.0

YEL43.

1.0

22F GTMXD

30F GTMXD SLDC4

Wiper SwitchWIPER/WASHER

.

1.0ORN

540

Mirror SwitchPOWER MIRRORS

ORN1.0

.540

.540ORN

30F GTMXDA9

1.0

0.5

.1020PNK

MD TRANSMISSIONTcm

Rear Heater RlyREAR HEATER

B11

ORN540.

1.0

22M GTMXD

Dr Lk RlyPWR DR LK

PWR DR LKPass Dr Lck Sw

MD TRANSMISSIONTcm

TcmTRANSMISSION

Sdg MdlSERIAL DATA

SA43

ORN

1.0

.540

1020.

0.5PNK

Ignition SenseDTC

0.5PNK

1020.

ORN540.

1.0

30M GTMXD SLD C4

TcmTRANSMISSION

1.0ORN

440.

22F GTMXDB11

IpcIP CLUSTER

1.0ORN

440.

SC540

TRANSMISSIONTcm

SA440

1.0

.43YEL

.440ORN

0.8

ORN540.

1.0

TcmMD TRANSMISSION

ORN1.0

.540

1.0

ORN440.

Wiper MotorWIPER/WASHER

TRANSMISSIONTcm

0.8PNK

1020.

PNK0.8

.1020

ORN540.

1.0

30M GTMXD SLDA2

0.5

.440ORN

PNK0.5

ORN

.1020

1.0

.540

.440ORN

1.0

YEL43.

1.0

SA540

IP CLUSTERIpc

0017

h83010csheet1schematic $IVEDWORK/h83010c__001

12:21:44 pm

Wednesday, April 19, 200608 XGMT560

Power Dist (LF6)0 GMT560Agustin VelazquezBeta

7

1.0

.540ORN

KEYLESS ENTRYRfa Mdl

0.8

TcmLCT TRANSMISSION

.1020PNK

SB540

22M GTMXDB11

TCM_BAT_PP2TCM_BAT_PP

MD_CL2

SHIFT_BAT_P

TCM_BAT_P

LCT_IGN0_P

MD_IGN0_P

SHIFT_IGN0_P

R_HVAC_P

(Page 2)

ACCY_P

MD_BAT_P

SDG_1_P

_

(Page 4)

MIR_SW_P

PASS_LK_P

LK_RLY_P RFA_P

DRV_LK_P

TRANS_P

(Page 1)

SDG_2_PIPC_IGN_P

WIPE_PWASH_P

(Page 1)

IGN4_P

IGNSW_D2_P

(Page 5)

IGN4_RLY

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-37

Power Distribution - (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

POST

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 8

Htd Air Rly

ENGINE CNTLS

SA539

0.8PNK

539.

Chmsl Iso Rly

UPFITER PROV

Pto Rly

EXTERIOR LIGHT

C640M GTMXD SLD

BRN541.

0.5

0.8

239.

0.5PNK

EXTERIOR LIGHTBrake Lp Rly

.539PNK

0.5

.1320BLU LT

541BRN

0.5

0.5

.1320BLU LT

.

2 SPEED REAR AXLE

840.

1.0ORN

Pto Enable SwUPFITTER PROV

Elec 2Sp Sw

SC239

0.5PNK

239.

PNK439.

0.8

30M GTMXDB5

8F GT280 SLDG

16F GT280 SLDR

PNK0.8

.239PNK

0.5

0.8PNK

539. .539

239.

SA1320

BLU LT1320.

0.5

30M GTMXD SLDB10

0.8PNK

.541BRN

30F GTMXD SLDB10

B13

0.5

B13

0.8

.439PNK

.

1.0ORN

840

MD TRANSMISSIONReverse Rly

Aux Power #1AUX POWER

ENGINE CNTLSEcu

EcuENGINE CNTLS

BRN2.0

.241

BRN

40F GTMXD SLDC6

0.5

.541

8402.0

.241BRN.

1.0ORN

Overdrive Defeat Sw Led

.239PNK

0.5

LCT TRANSMISSION

BRN241.

2.0

Tcs LedBRAKES

PNK439.

0.8

1.0

.840ORN

TELL TALE

Tt Module

0.8

.439

PNK

AIR BRAKESAir Dryer

30F GTMXD SLDC1

30M GTMXD SLDC1

439PNK

0.8

.

30M GTMXD SLDA4

BRN541.

0.5

PNK

439.

0.8

8M GT280 SLDG

BLU LT1320.

0.5

40F GTMXD SLDD3

A12

SB439

SD541

R

16F GT280R

0017

h83010csheet1schematic $IVEDWORK/h83010c__001

12:21:44 pm

Wednesday, April 19, 200608 XGMT560

Power Dist (LF6)0 GMT560Agustin VelazquezBeta

8

16M GT280

D3

StopBODY BUILDER

40M GTMXD SLD

B5 30F GTMXD

2.0

.241

16M GT280 SLDR

BRN

B

4M MP280 SLDB

4F MP280 SLD

PNK539.

0.8

2 SPEED REAR AXLE2Speed Rly

BRN241

2.0

.

.

2.0

SA439

ORN1.0

.840

241BRN

HYDRO BRAKESReservoir Air Press Sw

30F GTMXD SLDA4

A12

PNK439.

0.8

REAR AIR SUSPAir Susp Sw

IP CLUSTER

DPF Switch

HYD BRAKESEbc

40M GTMXD SLDA6

AUX POWERAux Power #2

ORN840.

AUX POWERCigar Lighter

541.

0.5

1.0

BRN

SA840

Data Link ConnDATA LINK CONN

0.8PNK

439.

0.8

.439PNK

Batt +DTC

241.

2.0

.541BRN

BRN

0.5

40F GTMXD SLDA6

HTR_RLY_P

2SP_LED_PPTO_LED_P

REV_P

ODDS_LED_P

539 HTR_LAMP

BB_STOP_P1320

BRKLP_RLY_P

(Page 4)

ENG-3_P

(Page 4)

ENG-1_P

CHMSL_RLY_P

C_PTO_RLY_P

BRAKE_ISO

(Page 5)

1320 BRK_NO_P

541 DPF_LED_P

CHASSIS_P

(Page 1)

AIR_DRY_P541

2SP_RLY_P

AXLE_P

(Page 1)

CIGAR_P840

AUX2_P

(Page 2)

POST

AUX1_P DLC_PSERIAL_P

EAC_RLY_P

(Page 1)

PCM-I_P

AIR_SUSP_P TCS_SW_P

EBC_IGN1_PCAT_IGN1_P

(Page 4)

IGNB_RLY_P

IGNA_RLY_P

(Page 4)

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-38

Power Distribution - (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83010c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Driver only Dual SIR

Driver onlyDual SIR

Panel Set: 9

YEL.1139

0.5

SIRSdm

08 XGMT560

Power Dist (LF6)0 GMT560Agustin VelazquezBeta

9

0017

h83010csheet1schematic $IVEDWORK/h83010c__001

12:21:44 pm

Wednesday, April 19, 2006

SB1139

YEL.1139

0.5

YEL.1139

0.5

0.5YEL.1139

30F GTMXDB6

YEL.1139

0.5

ORN

ORN.40

0.5

0.8

.40

YEL0.5

1139.

SIRPsir Delete Resistor

0.5

.40ORN

16F GT280E

INTERIOR LIGHTSDome Lamp Rear Dome Lamp

INTERIOR LIGHTS

30M GTMXDB6

ORN40.

0.8

16M GT280C

16M GT280E

0.5

1139.YEL

SIRPsir Defeat Sw

ORN

SA40

40.

0.80.5

1139.YEL

SA1139

16F GT280C

DOME_P RR_DOME_P

COURTESY_P

(Page 2)

SIR_OHM_P PSIR_P

SIR_P

(Page 1)

SDM_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-39

Ground Distribution - (L18) 8.1L V8 GMPT VORTEC® - Gas –

(LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014a

( )

ENG GND

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

GND ZONE #S1

L18

Panel Set: 1

ENGINE TO FRAME GND

L18

GND ZONE #2A

STUD

ZONE_S1

ENGINE CNTLSPcm (O2 Snsr Gnd)

.50BLK

50.0

B

BLK/WHT251.

0.8

M12

Gz S1f ClipA

BLK/WHT0.8

.251

Gz S1e Clip

M12

A

B

SB251

Pcm (O2 Snsr Gnd)ENGINE CNTLS

.251BLK/WHT0.8

0 GMT560Agustin VelazquezBeta1 Wednesday, April 19, 2006

00144

h83014asheet1schematic $IVEDWORK/h83014a__001

12:44:40 pm

08 XGMT560

Ground Dist (L18/LMM)

(Page 2)

2A_L18

O2_HTRA_G O2_HTRB_G

(Page 7)

FRAME

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-40

Ground Distribution - (L18) 8.1L V8 GMPT VORTEC® - Gas –

(LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014a

( ) ( )

ENG GND

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

L18

GND ZONE #2B

Panel Set: 2

L18

L18 L18

Ground - EngineSTUD

ZONE_2

.250BLK

0.8

BLK250.

0.8

BLK250.

2.0

EV FanFAN CONTROLS

Gz 2 Term LMM

M10

A

B

2sp Axle Sw2SP AXLE

SV250

ENGINE CNTLSIgn Coils - EvenIgn A Rly

POWER DISTPto Kill Sw

UPFITTER PROVISIONS

0.8BLK

250.

BLK250.

2.0

0.8

.250

BLK

FAN CONTROLSEV Fan

BLK

250.

0.8

0.8

.250BLK

SS250

250.

2.0BLK

.250BLK

0.8

HVACAc Clutch/Lo Pr Sw

M10

Gz 2 Term LMMA

B A

B

250.

0.8BLK

M10

Gz 2 Term L18

30M GTMXD SLDB5

2.0

.250BLK

FUEL HAND & STORFuel Pump Rly

AIR BRAKESAir Brake Rly Ign Coils - Odd

ENGINE CNTLS

BLK0.8

G

.250

8F GT150 SLD

POWER DISTIgn B Rly

G 8M GT150 SLD

14 Way Black GT150 Sealed M ConnG

14 Way Black GT150 Sealed F ConnG

.250BLK

0.8

0.8

.250BLK

30F GTMXD SLDB5

250.

1.0

0.8BLK

250.

BLK BLK1.0

.250

0.8BLK

250.

0.8

.250BLK

ENGINE CNTLSLow Oil Lvl Sw

2

00144

h83014asheet1schematic $IVEDWORK/h83014a__001

12:44:40 pm

Wednesday, April 19, 200608 XGMT560

Ground Dist (L18/LMM)0 GMT560Agustin VelazquezBeta

(Page 2)

FAN_GND

FAN_GND2 CLUTCH_G 250 2SP_SW_G

250 CG

LOW_OIL_G

251

2A_L18

(Page 1)

CG(Page 2)

PTO_GIGNA_RLY_G IGN_ODD_GAIR_BRK_G IGN_EVEN_GIGNB_RLY_GF_PMP_RLY_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-41

Ground Distribution - (L18) 8.1L V8 GMPT VORTEC® - Gas –

(LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014a

BDY GND

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

GND ZONE #7A

Panel Set: 3

GND ZONE #7B

BLK750.

3.0

SC750

16F GT280B

EXTERIOR LIGHTSTurn/Haz/Flash

B12

BLK750.

1.0

1.0

.750BLK

Roof Marker LpsEXTERIOR LIGHTS

Ipc Pwr GndIP CLUSTER

0.5

.750BLK

WIPERSWasher Pump

DPF SwitchIP CLUSTEREXH BRAKE/RSTR

Exhaust Brake Sw

B12

SY750

Elec 2 Speed Sw2 SPEED AXLE

0.5 0.5

.750BLK

750.BLK

Wiper MtrWIPERS

0.5BLK

High Idle SwENGINE CNTRLS

.750

750.

0.5BLK

SD750

Overdrive Defeat Sw IllumLCT TRANSMISSION

750.

0.8BLK

B4

Dlc Pwr GndDLC

Park Brake SwPARK BRAKE

BLK750.

0.8

30F GTMXDB7

TRACTOR WIRINGTractor Conn

0.5

.750BLK

1.0

.750BLK

BLK750.

0.5

M6.3

Gz 7a TermA

B

.750BLK

1.0

0.5BLK

750.

16M GT280B

STUD

ZONE_7

Horn SwitchHORN

B730M GTMXD

BLK750.

0.5

.2250BLK

2.0

.2250BLK

0.35

Pto Enable Sw/LedUPFITTER PROVISION

AUXILLARY PWRCigar Lighter

BLK750.

1.0

SM750

BLK750.

0.8

BLK2.0

.750

750.

0.5BLK

INTERIOR LIGHTSHeadlamp Sw

LCT TRANSMISSIONOverdrive Defeat Sw

Wednesday, April 19, 20063

00144

h83014asheet1schematic $IVEDWORK/h83014a__001

12:44:40 pm

08 XGMT560

Ground Dist (L18/LMM)0 GMT560Agustin VelazquezBeta

Chime MdlCHIME

.750BLK

3.0

B4

BLK750.

0.5

4WD ATC MdlACTIVE TRANSFER CASE

BLK

750.

3.0

BLK750.

1.0

Diff Lk SwTELL TALE

1.0BLK

750.

0.5

.750BLK

BLK750.

1.0

Drl MdlDRL

0.5

.750BLK

.750BLK

0.8

.750

4WD ATC MdlACTIVE TRANSFER CASE

TELL TALETtm - PTO

BLK0.5

Ttm - ExhaustTELL TALE

BLK750.

1.0

WIPERSLow Wash Fluid Sw

2.0

.750BLK

BLK750.

0.5

SN750

PTO_TT_G HIS_G DPF_SW2SP_SW1_G

750

CHI ME _G ODDS_S W_G ODDS_I LL_G

4WDSWG

ATCMDLG

P_BRK_G

TRACTOR_G

HEADLPSW_G

CIGAR_G EXH_TT_G

MARKERS_G

PTO_LED_G(Page 9)

ZONE7A

DRL_G WPR_MTR_G

EXH_SW_G

LOW_WASH_GWSHR_PMP_G

TRNHAZ_G DATA1_GIP_PWR_G

HORN_SW_G DIFF_LK_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-42

Ground Distribution - (L18) 8.1L V8 GMPT VORTEC® - Gas –

(LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

BDY GND

Panel Set: 4

SAME AS LEFT

OSRVM

550

GND ZONE #5

TXL

RH_MRK_G

2

50

BLK

12065398

.BLK.

0.8

Pass Htd Mir Head8A-

=&DB6/DB8

TXL

=&DB6/DB7

Rh Mirror Mrkr Lp

0.8

R_H_MIR_G

8A-147B

OSRVM

1950

147B 2

8F MP150

-

POWER MIRRORS

OSRVMB

POWER MIRRORS

550

-

19

A

Page Page

SB550

BLK1.0

.550

A

0.5

.550BLK

Drv Htd Mir HeadPOWER MIRRORS

BLK0.5

.550

8F MP150B

POWER MIRRORSMirror Sw

BLK550.

1.0

.550BLK

3.0

POWER WINDOWSPass Win Sw

.550BLK

0.58M MP150

B

POWER WINDOWSDrv Window Sw

1.0

.550BLK

Pass Door Jamb SwINTERIOR LIGHTING

Gz 5 Term

M6.3

A

B

BLK550.

0.5A8M MP150

B

550.

0.8BLK

B822M GTMXD

00144

h83014asheet1schematic $IVEDWORK/h83014a__001

12:44:40 pm

Wednesday, April 19, 200608 XGMT560

Ground Dist (L18/LMM)0 GMT560Agustin VelazquezBeta

4

0.8

.550BLK

POWER DOORSDrv Door Rly

BLK550.

0.5

3.0

.550BLK

STUD

ZONE_5

550.

1.0BLK

22F GTMXDB8

22F GTMXDB8

Gz 5 Term

M6.3

A

B

550.

0.5BLK

SA550

1.0BLK

550.

3.0BLK

550.

B822M GTMXD

A

SC550

POWER DOORS

BLK550.

3.0

Drv Dr Lck Sw

BLK550.

1.0

3.0BLK

550.

0.8

.550BLK

.550BLK

0.5

0.8

1.0

.550BLK

INTERIOR LIGHTINGDrv Door Jamb Sw

.550BLK

Lh Mirror Mrkr LpPOWER MIRRORS

BLK550.

0.8

BLK550.

0.8BLK

550.

0.8

POWER DOORSPass Dr Lck Sw

BLK550.

1.0

KEYLESS ENTRYRfa Mdl

LDOORJAM_G RDOORJAM_GPASS_WIN_G550 DR_WIN_G

(Page 12)

ZONE5

RFA_G

LH_MRK_GL_H_MIR_GDRV_LK_G

LK_RLY_G

PASS_LK_GMIR_SW_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-43

Ground Distribution - (L18) 8.1L V8 GMPT VORTEC® - Gas –

(LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014a

BDY GND

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

FOOT PARK BRAKE CASE GND

Panel Set: 5

GND ZONE #4B

(Family 2) GND ZONE #6

1.0BLK

450.

0.8

.1751BLK/WHT

SH450

.450BLK

0.8

REAR DEFOGGERRear Defog Cntrl

0.5BLK/WHT

1751.

POWER MIRRORSHtd Mirror Rly

BLK450.

0.5

Gz 4b Term

M6.3

A

B

.450BLK

1.0

AUX POWERAux Outlets

SK450

0.8BLK

450.

5.0

.450BLK

BLK1.0

.450BLK

0.5

.450

Foot Park Brake Sw

PARK BRAKE

16M GT280P

BLK450.

0.5

CASE

CASE_P

STUD

ZONE_4 ZONE_6

STUD

TELL TALETrans Temp Gauge Illum

Blower MtrHVAC

Chmsl RlyEXTERIOR LIGHTS

Heated Fuel RlyHTD FUEL/WATER IN FUEL

Gz 6 Term

M6.3

A

B

0.8

.450BLK

AUX POWERAux Outlets

0.5

.450BLK

0 GMT560Agustin VelazquezBeta5

00144

h83014asheet1schematic $IVEDWORK/h83014a__001

12:44:40 pm

Wednesday, April 19, 200608 XGMT560

Ground Dist (L18/LMM)

450.

5.0BLK

0.5BLK

450.

1.0

.450BLK

Brake Lp RlyEXTERIOR LIGHTS POWER DIST

Ign4 Rly

P16F GT280

.450BLK

0.8

Rh Trailer RlyEXTERIOR LIGHTS

2.0

.450

Temp MtrHVAC

BLK

HVACHvac Head

SJ450

SIRSdm

0.8BLK

450.

EXTERIOR LIGHTSLh Trailer Rly

TELL TALESys Air Press Gauge Illum

1.0BLK

450.

SDM_G

(Page 6)

ZONE4A

FOOT_G

AUX2_G HVAC_FOG_G

HFUEL_R3_G

AUX1_G CHMSL_RLY_GGAUGES_G

BRKLP_RLY_G

PNEUTC_GTEMP_CNTL_G RH_HAZ_G LH_HAZ_G

BLWR_RLY_G

H_MIR_RLY_G HVAC_G

IGN4_RLY_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-44

Ground Distribution - (L18) 8.1L V8 GMPT VORTEC® - Gas –

(LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014a

BDY GND

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

GND ZONE #S2

Panel Set: 6

Page

RADIO

RDOANT_G

GND ZONE #4A

8A-150A

GND ZONE #8

-

BODY TO FRAME GND

Antenna Shield1

A

B

M6.3

Gz 8 Term

BLK/WHT1451.

0.8

B

M6.3

Gz 4a TermA

Gz S2b TermA

B

M8

50.0BLK

50.

REAR DEFOGGERRear Defog Grid

1451.

0.8BLK/WHT

751.

0.8BLK/WHT

4WD ATC MdlACTIVE TRANSFER CASE

ZONE_8

STUD

ZONE_S2

STUD Ground-BodyCASE

CASE1_P

Gz S2f Term

M12

A

B

BLK/WHT0.8

.1451

RADIO/CHIMESdgRadio/Chime Module

SERIAL DATA GATEWAY

SB1451

Wednesday, April 19, 2006001

44

h83014asheet1schematic $IVEDWORK/h83014a__001

12:44:40 pm

08 XGMT560

Ground Dist (L18/LMM)0 GMT560Agustin VelazquezBeta

6

.850BLK

2.0

1451BLK/WHT0.8

.

Dlc Sig GndDATA LINK CONN

1.0

.1451BLK/WHT

ZONE_S2

STUD

IP CLUSTERIp Signal Gnd

ACT_4WDG

RADIO_G

ZONE4A

(Page 5)

SDG_GDATA2_GIP_SIGNAL_G

DEFOG_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-45

Ground Distribution - (L18) 8.1L V8 GMPT VORTEC® - Gas –

(LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

LEFT FRAME GROUND

FRAME GND

GND ZONE #12B (FAM 3)GND ZONE #12A (FAM 2)

GND ZONE #1A

GND ZONE #1B

GND ZONE #B

Panel Set: 7

Bus

Bus Not Bus

Bus Not Bus

Hydromax SwHYDRO BRAKES

B

Right Frame Term

E 1/2

A Gz 1a Term

M12

A

B

E 1/2

Left Frame Term

A

B

Trailer ConnTRAILER WIRING

Fuel Gnd TermA

B

M12

Fuel Pump/Tank FAM 2 FUEL HAND & STOR

SA151

BLK/WHT151.

3.0

EbcHYDRO BRAKES

BLK5.0

.150

SD151

Ground - Left Frame

ZONE_B

STUD

ZONE_B2

STUD

50.

103.0BLK

XGMT560

Ground Dist (L18/LMM)0 GMT560Agustin VelazquezBeta

7 Wednesday, April 19, 2006001

44

h83014asheet1schematic $IVEDWORK/h83014a__001

12:44:40 pm

08

BATTERIESBattery (Neg)

BLK/WHT8.0

.151

3.0

.151BLK/WHT

Gz B Term

M12

A

B

Gnd Stud Conn Term

M12

A

B

BLK/WHT13.0

.151

BLK13.0

.50

FUEL HAND & STORFuel Pump/Tank

M12

A

B

Gz 1b Term

BLK/WHT151.

8.0

Hydromax MtrHYDRO BRAKES

BLK/WHT151.

0.8

SB151

BLK/WHT151.

3.0

EbcAIR BRAKES

B

Fuel Gnd Term

M12

A

ZONE_BZONE_S1

STUD Ground-Frame

GND_CONN

STUD STUD

ZONE_1ZONE_12

STUDSTUD

M12

Gz 1a TermA

B

EbcHYDRO BRAKES

B3D_FUEL_G350

HYD_A_GHYD_B_GHYMAX2_GBATTNEG_G50

350 FUEL_PMP_G

TRAILER_G

HYMAX1_G

(Page 8)

STD_CONN_G

(Page 1)

FRAME

AIR_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-46

Ground Distribution - (L18) 8.1L V8 GMPT VORTEC® - Gas –

(LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

GND ZONE #3D

GND ZONE #3C

Panel Set: 8

FAM 3

ABS DeleteWith ABS

With Rear Air Susp Without Rear Air Susp

Air BrakesHydro Brakes

With ABSABS Delete

REAR AIR SUSPRear Air Susp Sol

2SPD AXLE

4F MP280 SLDC

2spd Axle Mtr

2.0BLK

350.

2.0

.350BLK

SB350

BUS UPFITTERBack Up Alarm

BLK350.350

BLK2.0

.

2.0

5.0

.350BLK

350.

2.0BLK

S

2.0

.350BLK

16F GT280 SLDS

16M GT280 SLD

BLK350.

2.0

BLK350.

0.8

BATT GND

J3-A

#3CZONE

C

J4-A

ZONE#3D

D

UP

J5-A

FITTER

E

J6-A

UPFITTER

F

J7-AJ7-J6-

Gnd Blk Connector Asm

ZONE

J1-A

#3A

A

J2-A

ZONE#3B

B

1206654512065172

EXTERIOR LIGHTSTail Lamps

BLK2.0

.350

.350BLK

IP CLUSTERLow Air Press Sw - Sec

0.8

C 4M MP280 SLD

2.0

.350BLK

SC350

FUEL HAND & STORFuel Pump/Tank

D

2.0

8F GT280 SLD

.350BLK

00144

h83014asheet1schematic $IVEDWORK/h83014a__001

12:44:40 pm

08

Wednesday, April 19, 2006XGMT560

Ground Dist (L18/LMM)0 GMT560Agustin VelazquezBeta

8

2.0

.350BLK

8M GT280 SLDD

.350BLK

0.8

AIR_SW_G

2SP_MTR_G

TAIL_LP_GBU_G SUSP_SOL_G(Page 11)350

ZONE3B

ZONE3A351

(Page 10)

350 FUEL_SEND_G

STD_CONN_G

(Page 7)50

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-47

Ground Distribution - (L18) 8.1L V8 GMPT VORTEC® - Gas –

(LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

http://slidepdf.com/reader/full/2009-gm-medium-duty-electrical-manualpdf 158/410

Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

CASE GNDENGINE

To: GND ZONE #7A

Panel Set: 9

STARTING & CHARGINGStarter Motor

Mkr Lmp Sw

SB750

SA750

EXTERIOR LIGHTS

EXHAUST BRAKEExh Brk Sw/Illum

ENGINE CNTRLSHi Idle Sw Illum

.750BLK

0.5BLK

750.

0.8

REAR AIR SUSPAir Susp Sw/Led

BLK750.

0.5

BLK2.0

.750

0.5

.750BLK

.750BLK

0.8

L18 ENG CNTLSOdd Knock Sensor

08

12:44:40 pm

$IVEDWORK/h83014a__001sc he ma ti c sh ee t1

h83014a44

001Wednesday, April 19, 20069

Beta Agustin Ve lazquez GMT5600Ground Dist (L18/LMM)GMT560 X

Pneumatic Sw IllumINTERIOR LIGHTS

.

0.5BLK

750

BLK750.

0.5

0.5

.750BLK

.750BLK

0.5

0.5

.750BLK

DPF SwitchIP CLUSTER

Traction Cntrl SwBRAKES REAR AIR SUSP

Air Susp Sw/Illum

L18 ENG CNTLSEven Knock Sensor

BLK0.5

.750

CASE_1 CASE_2 CASE_3 CASE_4 CASE_5 CASE_6 CASE_7 CASE_8 CASE_9

Ground-Engine Case

Pto Enable Sw/IllumUPFITTER PROVISION

POWER MIRRORSHtd Mirr Sw/Led

EXTERIOR LIGHTSMkr Lmp Sw/Illum

BLK750.

0.5

Htd Mirr Sw/IllumPOWER MIRRORS

0.5

.750BLK

2nd Generator GndSTARTING & CHARGING

2 SPEED AXLEElec 2 Speed Sw

Generator GndSTARTING & CHARGING

0.5

.750BLK

SIRPSIR Defeat Sw

750(Page 3)

ZONE7A

DPF_ILL

PSIR_G

TCS_G

PNEU_SW_G 2SP_LP_GPTO_ILL_GMRKR_SW_G

H_MIR_ILL_GSUSP_ILL_G H_MIR_LED_GSUSP_LED_G EXH_ILL_G

MRKR2_SW_G HIS_ILL_G

2ND_GEN_GSTARTER_GODD_KNK_GEVEN_KNK_G GEN_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-48

Ground Distribution - (L18) 8.1L V8 GMPT VORTEC® - Gas –

(LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014a

FUEL TANK

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

FUEL TANK

GND ZONE #9 (SIDE TANKS)

GND ZONE #3A

LMM

GND ZONE #10 (SIDE TANKS)

L18

GND ZONE #11 (MID TANKS)

L18L18L18 L18 L18

LMM

Panel Set: 10

LMM

BLK/WHT351.

0.8

TANK_S

Secondary Fuel Tank

.

0.8BLK/WHT

351

0.8

.351BLK/WHT

BLK/WHT351.

0.8

Pcm Gnd 1

ENGINE CNTLS

D3

SC351

30M GTMXD SLD

0.8

.351BLK/WHT

12:44:40 pm

Wednesday, April 19, 200608 XGMT560

Ground Dist (L18/LMM)0 GMT560Agustin VelazquezBeta

10

00144

h83014asheet1schematic $IVEDWORK/h83014a__001

FUEL HAND & STORSec Tank Static Gnd

0.8

.351BLK/WHT

C

BLK/WHT0.8

.351

6F GT280 SLDC

6M GT280 SLD 12M GT280 SLDG

BLK/WHT351.

0.8BLK/WHT

351.

0.8

3.0

.351BLK/WHT

ENGINE CNTLSPcm Gnd 1

C1

Primary Tank Term

M8

A

B

FUEL HAND & STORPrim Tank Static Gnd

TRANSMISSION

Tcm

ENGINE CNTLS

Low Coolant Sw

2.0

.351BLK/WHT

BLK/WHT351.

1.0

3.0

.351BLK/WHT

0.8

.351BLK/WHT

.

0.8BLK/WHT

351

C1

BLK/WHT351.

3.0

2.0

.351BLK/WHT

Primary Fuel Tank

TANK_P

0.8BLK/WHT

351.

1.0

.351BLK/WHT

Pcm Gnd 1ENGINE CNTLS

.

0.8BLK/WHT

351

ENGINE CNTLS

Pcm Gnd 1

2.0

BLK/WHT351.

1.0

BLK/WHT351.

SA351

12F GT280 SLDG

Etc

ELEC THROT CNTRL

30F GTMXD SLDD3

ENGINE CNTLS

Pcm Gnd 1

TRANSMISSION

Tcm

ENGINE CNTLSPcm Gnd 1

ENGINE CNTLS

Maf Sense Pcm Gnd 1

ENGINE CNTLS

Trans Temp SnsrTELL TALE

Fluid Lvl SwHYDRO BRAKES

SB351

.351BLK/WHT2.0

BLK/WHT351.

0.8

Secondary Tank TermA

B

M8

TCM1_G351

ZONE3A

(Page 8)

TEMP_SNSR_G

SFTANK_G350

LMM_2_G LMM_3_G LMM_4_G

L18_1_G L18_2_G L18_3_G L18_4_GLOW_COOL_GMAF_G

FLS_G

350 PFTAN K_G

ETC_G LCT_GG

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-49

Ground Distribution - (L18) 8.1L V8 GMPT VORTEC® - Gas –

(LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

50

2.0

-

.

BEAM_G

19

HEADLAMPS

1.0 50

HI_BEAM_G

.

FWDLP

TXL

100B

FWDLP

RTRNPRK_G

19

Page

GND ZONE #3B

HEADLAMPS

1

BLK

Splice for Ether Injector

1.0

HI_BEAM_G

See: 14C-11

Rf Turn/Park Lmps

5M GT280 SLDR_FWDLP

SAME AS LEFT

PageRight High Beams

SF350

Panel Set: 11

110A1

19TXL

50

BLK

.

-

350

C

Right Headlamp-Page 8A- 18A-

350

100A/B 8A-

FWDLP

TXLBLK

350

350

EXTERIOR LIGHTS

15409273

Vacuum PmpHVAC IP CLUSTER

Low Air Press Sw - PrimHORNSHorns

C

5.0BLK

350.

3F MP280 SLD

2.0

.350

BLK

.

0.8BLK

350

BLK

350.

2.0

350.

1.0BLK

SD350

350.

1.0BLK

A 6M GT280 SLD

Lf Turn/Park LmpsEXTERIOR LIGHTS

1.0

.350BLK

0.8BLK

350.

12F GT280 SLDA

1.0

.350BLK

3.0

3.0

.350BLK

BUS UPFITTERGnd

BLK350.

BLK

HEADLAMPSLeft High Beams

350.

1.0

12:44:40 pm

Wednesday, April 19, 200608 XGMT560

Ground Dist (L18/LMM)0 GMT560Agustin VelazquezBeta

11

00144

h83014asheet1schematic $IVEDWORK/h83014a__001

12M GT280 SLDA

SF350

Air DryerAIR BRAKES

BODY BUILDERGnd

BLK0.8

.350

C5M GT280 SLD

SE350

C5F GT280 SLD

C5F GT280 SLD

BLK350.

2.0

6F GT280 SLDA

HEADLAMPSLeft Headlamp

3.0BLK

350.

3M MP280 SLDC

1.0

.350BLK

350.

1.0BLK

BLK1.0

.350

Elec Air CompHYDRO BRAKES

BB_G

SB_G

EAC_G

VAC_PUMP_G AIR_DRY_G 350 BEAM_GHORN_A_G

(Page 8)

ZONE3B

AIR_PR_SW_G HI_BEAM_G LTRNPRK_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-50

Ground Distribution - (L18) 8.1L V8 GMPT VORTEC® - Gas –

(LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

2

=&LMM

NONE

IC96

50

BLK

BARE

ISUZU2

ENGINE EARTH A

50

R R Door Jamb Sw

IZ05

ISUZU

9

BLK

50

19

ENGINE CNTLS

8A-

Same as left

550

23D Page

ISUZU

TXL

2.5

-

ISUZU

-

IZ08

1.0

TXL

POWER WINDOWS

20D

.

=&A31&CREWCAB

Glow Plug Cntls

=&LMM

8A-

.

.

120B

Note:

0.8

R R Win Sw Illum

ISUZU

Water In Fuel Snsr

-

Page

ENGINE CNTLS

19

16

50

8A-

=&CREWCAB-A31

NONE

ISUZU

TXL

1.25

REAR_DOOR

550

PNK/YEL

ISUZU2

HFUEL_SW_G

.

-

IC91

0.85

Page

16

.

Rail Press Snsr Shield

Supplied

8A-

BARE

19

.

BLK

TXL

Oil Level Sw

=&LMM

-Page

16

9

=&LMM

RPCV_SH

BARE

.

50

BLK

Page

0.8

=&LMM

ENGINE CNTLS

Page

-

INTERIOR LIGHTS

Panel Set: 12

0.85BARE

ISUZU50

IC469

5050

20D

..

19

ISUZU

=&A31&CREWCAB

.

RR_WIN_G

Isuzu

550

50

YELHB03

20D

16

IZ06

Cam Snsr Shield

- 8A-8 8A-

IZ07

ENGINE EARTH B

ENGINE CNTLS

TXL

50

12

RRDOORJAM_G

=&LMM

GRN LT/WHT

Page

WIF_G

TXL

8A-

ISUZU

REAR_DOOR

TXL

Crank Snsr Shield

Page

Heated Fuel Htr

NONE 0.85

23D

550

TXL

BLK

0.85

SPLICE

TXL

13

LOW_OIL_G

19

8A-

ISUZU2

HEATED FUEL

BLK/GRN DK

20D

15326018

GLO_CNTL_G

-

ENGINE CNTLS

Rpcv Shield

ISUZU

50

19

8A- 20D Page-

NONE

HB403

12M GT280

20D1

REAR_RDOOR

. .

=&LMM

IZ18

.

1

RAIL_SH

50

114A

PNK/YEL

SD550

50

HEATED FUEL

To: GND ZONE #5

ENGINE CNTLS

=&LMM

REAR_DOOR

ENGINE EARTH C

8A-

4

50

-

TXL

REAR_DOOR

=&A31&CREWCAB

1.0

=&LMM

Page

K

CRANK_SH

.

1

CAM_SH

=&LMM

1.0

.550BLK

SF550

1.0BLK

550.

0.8BLK

550.

.550BLK

1.0

K12F GT280

Rear Heater

Rear Heater Relay

44

00112

Beta Agustin Ve lazquez GMT5600Ground Dist (L18/LMM)GMT560 X08

Wednesday, April 19, 2006

12:44:40 pm

$IVEDWORK/h83014a__001sc he mat ic sh ee t1

h83014a

J10F GT280

Rear Heater Motor

Rear Heater

L R Door Jamb SwINTERIOR LIGHTS

1.0

.550BLK

0.8

.550BLK

10M GT280J

Rear Htr Sw Ill

Rear Heater

SD550

BLK1.0

.550BLK

550.

1.0

0.5

.550BLK

12M GT280K

1.0BLK

550.

K 12F GT280

POWER WINDOWSL R Win Sw Illum

R_HVAC_GR_HTR_RLY_G

LRDOORJAM_G

R_HTR_MTR_G

LR_WIN_G

550(Page 4)

ZONE5

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-51

Ground Distribution (LF8) 7.8L L6 Isuzu 6H - Diesel

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

ENG GND

ENGINE TO FRAME GNDGND ZONE #S1

Panel Set: 1

GMT560 X08

Wednesday, April 19, 2006

12:49:17 pm

$IVEDWORK/h83014b__001s ch em ati c s he et1

h83014b15

0011

Beta Agustin Velazquez GMT5600Ground Dist (LF8)

ZONE_S1

STUD

M12

Gz S1e ClipA

B

BLK50

Gz S1f Clip

M12

A

B.

50.0

FRAME

(Page 7)

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-52

Ground Distribution (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

POWER DISTIgn A Rly

2SP AXLE2sp Psi SwIgn B Rly

POWER DIST2sp Axle Sw2 SP AXLE

Ac ClutchHVACAIR BRAKES

Air Brake Rly

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014b

ENG GND

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 2

GND ZONE #2B

30F GTMXD SLDB5

BLK250.

0.8

.250BLK

BLK250.

0.8

0.8.250BLK

0.8

Gz 2 TermA

B

M10

g y

BLK250.

2.0

SV250

g y

30M GTMXD SLDB5

BLK250.

0.8

ZONE_2

Ground - EngineSTUD

BLK250.0.8

.250BLK0.8

BLK250.

2.0

Pto Kill SwUPFITTER PROVISIONS

$IVEDWORK/h83014b__001sch ematic sheet1

h83014b15

0012

Beta Agust in Velazquez GMT5600Ground Dist (LF8)GMT560 X08

Wednesday, April 19, 2006

12:49:17 pm

C

4F GT150 SLDC

4M GT150 SLD

BLK250.0.8

SS250

y

CLUTCH_G2SP_SW_G250

PTO_G

AIR_BRK_G 2SP_PSI_GIGNA_RLY_G IGNB_RLY_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-53

Ground Distribution (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

Ttm - PTOTELL TALE

Headlamp SwINTERIOR LIGHTS

Dlc Pwr GndDLCIP CLUSTER

Ipc Pwr GndExhaust Brake Sw

Bat RtnDTC

EXH BRAKE/RSTRElec 2 Speed Sw2 SPEED AXLE

Pto Enable Sw/LedUPFITTER PROVISION

Turn/Haz/FlashEXTERIOR LIGHTS

DPF SwitchIP CLUSTERENGINE CNTRLS

High Idle Sw

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014b

BDY GND

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 3

GND ZONE #7A

GND ZONE #7B

.

0.5BLK

750

SD750

.750BLK

1.0

TELL TALETtm - Exhaust

30F GTMXDB7

0.5

.750BLK

Tractor ConnTRACTOR WIRING

30M GTMXDB7

ZONE_7

STUD

0.5

.750BLK

0.5

.750BLK

.750BLK

2.0

750.

1.0BLK

3.0

.750BLK

SN750

3.0

.750BLK

1.0

.750BLK

CHIMEChime Mdl

0.8

.750BLK

16M GT280

B

BLK750.

0.5

TELL TALEDiff Lk Sw

3.0

BLK0.5

.750

BLK750.

0.5

.750BLK

B12

Overdrive Defeat SwLCT TRANSMISSION

SC750

BLK0.8

.750

Wiper MtrWIPERS

M6.3

A

B

Gz 7a Term

0.5

.750BLK

Drl Mdl

16F GT280B

DRL

.

0.5BLK

750

B4

BLK750.

1.0

BLK0.5

.750BLK

0.5

.750BLK

1.0

.750

B4

B12

WIPERSWasher Pump

1.0

.750BLK

BLK

BLK750.

0.8

0.5

.750

PARK BRAKEPark Brake Sw

SM750

BLK750.

1.0

SY750

1.0BLK

750.

BLK750.

0.5

LCT TRANSMISSIONOverdrive Defeat Sw Illum

0.8

.750BLK

HORNHorn Switch

BLK750.

0.5

sheet1

h83014b15

0013

Beta Agustin Velazquez GMT5600Ground Dist (LF8)GMT560 X08

Wednesday, April 19, 2006

12:49:17 pm

$IVEDWORK/h83014b__001schematic

1.0

.750BLK

2.0BLK

750.

BLK0.5

.750

WIPERSLow Wash Fluid Sw

AUXILLARY PWRCigar Lighter

EXTERIOR LIGHTSRoof Marker Lps

SERIAL_G DPF_SW

PTO_TT_G 750

CHIME_G ODDS_SW_G ODDS_ILL_G

TRACTOR_G

HEADLPSW_G

CIGAR_G MARKERS_G EXH_TT_G

WSHR_PMP_G

TRNHAZ_G DATA1_GIP_PWR_G

750 P_BRK_G

PTO_LED_G 2SP_SW1_GEXH_SW_G

(Page 9)

ZONE7A

HIS_G

WPR_MTR_GDRL_G

DIFF_LK_GHORN_SW_G LOW_WASH_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-54

Ground Distribution (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

POWER MIRRORSPOWER MIRRORSPass Htd Mir Head Rh Mirror Mrkr LpMirror Sw

POWER MIRRORSPOWER DOORSDrv Dr Lck Sw

INTERIOR LIGHTINGPass Door Jamb Sw

POWER WINDOWSPass Win SwPOWER MIRRORS

Lh Mirror Mrkr LpDrv Window SwPOWER WINDOWS

Pass Dr Lck SwPOWER DOORS

Drv Htd Mir HeadPOWER MIRRORS

Drv Door Jamb SwINTERIOR LIGHTING

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014b

BDY GND

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

8F MP150

TXLBLK

0.8

RH_MRK_G

550 =&DB6/DB8

19

R_H_MIR_G

-

GND ZONE #5

OSRVM

TXL

2

.

8A-PagePass Htd Mir Head

12065398

-

0.8BLK

50

=&DB6/DB7

8A-

OSRVM

Rh Mirror Mrkr Lp

19

550

A

Panel Set: 4

2

50

BSAME AS LEFT

147B 147BPage

.

OSRVM

0.8

.550BLK

0.5

.550BLK

0.8

.550BLK

A

ZONE_5

STUD

0.8

.550BLK

8F MP150B

BLK550.

1.0

8M MP150B

Gz 5 Term

M6.3

A

B

Mirror SwDrv Dr Lck Sw

00115

h83014bsheet1schematic $IVEDWORK/h83014b__001

12:49:17 pm

Wednesday, April 19, 200608 XGMT560

Ground Dist (LF8)0 GMT560Agustin VelazquezBeta

4

0.5

Rfa MdlKEYLESS ENTRY

BLK550.

BLK550.

0.5

Gz 5 Term

M6.3

A

B

Pass Door Jamb Sw

.550BLK

0.5

0.5

.550BLK

0.5BLK

550.

.550BLK

3.0

BLK550.

3.0

3.0

.550BLK

BLK550.

1.0

BLK550.

0.5

BLK550.

1.0

Lh Mirror Mrkr Lp

BLK550.

0.8

A

22M GTMXDB8

22F GTMXDB8

BLK550.

3.0

1.0

.550BLK

B8M MP150

SB550

Drv Door RlyPOWER DOORS

SA550

22F GTMXDB8

Pass Dr Lck Sw

A

SC550

.550BLK

0.80.8BLK

550.

1.0

.550BLK

.550BLK

1.0

550.

0.8BLK

22M GTMXDB8

1.0

.550BLK

BLK1.0

.550

3.0

.550BLK

Drv Door Jamb Sw

RFA_G

ZONE5

(Page 12)

DRV_LK_GDR_WIN_G550 L_H_MIR_G LH_MRK_G LDOORJAM_G PASS_LK_G RDOORJAM_GPASS_WIN_G

LK_RLY_G

MIR_SW_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-55

Ground Distribution (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

Trans Temp Gauge IllumTELL TALE

Sys Air Press Gauge IllumTELL TALEHVAC

Temp MtrREAR DEFOGRear Defog Ctrl

AUX PWRAuxilary Outlets Lh Trailer Rly

EXTERIOR LIGHTS

Hvac HeadHVAC

Htd Mirror RlyPOWER MIRRORSAUX PWR

Auxilary Outlets

EXTERIOR LIGHTSRh Trailer Rly Chmsl Rly

EXTERIOR LIGHT

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

BDY GND

Panel Set: 5

GND ZONE #6

GND ZONE #4B

BLK450.

1.0

.1751BLK/WHT

15

001

0.5

5

Beta Agustin Velazquez GMT5600Ground Dist (LF8)GMT560 X08

Wednesday, April 19, 2006

12:49:17 pm

$IVEDWORK/h83014b__001s ch ema ti c s he et 1

h83014b

0.5

.450BLK

450.

2.0BLK

CASE_P

CASE

ZONE_4

STUD

ZONE_6

STUD

16F GT280P

SK450

Elec Shift SelMD TRANSMISSION

0.5

.450BLK

Ign4 RlyPOWER DIST

0.5

.450BLK

A

B

M6.3

Gz 6 TermA

B

M6.3

Gz 4b Term

450.

5.0BLK

1.0BLK

450.

16M GT280P

0.8BLK

450.

BLK450.

1.0

450.

0.8BLK

SH450

450.

0.8BLK

.450BLK

0.8 1.0

.450BLK

BLK/WHT1751.

0.8

BLK450.

0.5

SJ450

450BLK

5.0

.

SdmSIR

EXTERIOR LIGHTBrake Lp Rly

BLK450.

0.5

HVACBlower Mtr

0.8

.450BLK

.450BLK

1.0

SDM_G

(Page 6)

ZONE4A

HVAC_FOG_GAUX2_G

SHIFT_LP_G BRKLP_RLY_G

CHMSL_RLY_GTEMP_CNTL_G AUX1_G RH_HAZ_G LH_HAZ_G

BLWR_RLY_G

H_MIR_RLY_G HVAC_G GAUGES_G

IGN4_RLY_G

PNEUTC_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-56

Ground Distribution (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014b

BDY GND

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

GND ZONE #S2

RDOANT_G

8A-

GND ZONE #4A

1Antenna Shield

BODY TO FRAME GND

Page 150A -

RADIO

Panel Set: 6Panel Set: 6

GND ZONE #8

BLK/WHT1451.

0.8

.1451BLK/WHT0.5

Rear Defog GridREAR DEFOGGER

STUD

ZONE_S2

Ground-BodyCASE

CASE1_P

STUD

ZONE_8

BLK/WHT1451.

1.0

Dlc Sig GndDATA LINK CONN ENF CNTLS

DaMU

M12

A

BGz S2f Term

Ground Dist (LF8)GMT560 X08

Wednesday, April 19, 2006

12:49:17 pm

$IVEDWORK/h83014b__001s ch em ati c s he et 1

h83014b15

0016

Prod Agustin Velazquez GMT5600

Gz 4a Term

M6.3

A

B

0.8

.1451BLK/WHT

BGz S2b Term

M8

A

ENF CNTLSDaMU

STUD

ZONE_S2

1.0BLK/WHT

1451.

.50BLK

50.0

RADIO/CHIMERadio/Chime Module

850

BLK2.0

.

1451.

0.8BLK/WHT

SB1451

Gz 8 TermA

B

SdgSERIAL DATA GATEWAY

M6.3

Ip Signal GndIP CLUSTER

0.8

.1451BLK/WHT

DAMU_G TRIG_SW_G RADIO_GIP_SIGNAL_G DATA2_G SDG_G

(Page 5)

ZONE4A

DEFOG_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-57

Ground Distribution (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

EbcAIR BRAKES

EbcHYDRO BRAKES HYDRO BRAKES

Hydromax MtrHYDRO BRAKES

EbcHYDRO BRAKES

Hydromax Sw

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

FRAME GND

Panel Set: 7

GND ZONE #B

GND ZONE #1A

GND ZONE #12B

GND ZONE #1B

M12

Gz 1a TermA

B

A

B

Gz 1b Term

M12

151BLK/WHT3.0

.

Battery (Neg)BATTERIES

Gz 1a Term

M12

A

B

h83014b15

0017

Beta Agustin Velazquez GMT5600Ground Dist (LF8)GMT560 X08

Wednesday, April 19, 2006

12:49:17 pm

$IVEDWORK/h83014b__001s ch em at ic s he et1

M12

Gnd Stud Conn TermA

B

SA151

.151BLK/WHT

8.0

Ground-Frame

GND_CONN

STUD

ZONE_1

STUDSTUD

ZONE_12ZONE_B

STUDSTUD

ZONE_S1

BLK/WHT151.

8.0Fuel Gnd Term

M12

A

B

5.0

.150BLK

13.0BLK

50.

13.0BLK/WHT

151.

151.

3.0BLK/WHT

3.0BLK/WHT

151.

0.8

.151BLK/WHT

SD151 SB151

Fuel Pump/Tank FAM 2 FUEL HAND & STOR

A

B

TRAILER WIRINGFam 3 Trailer Conn

Gz B Term

M12

FUEL_PMP_G

TRAILER_G

350

HYMAX2_G HYMAX1_GHYD_A_GHYD_B_G

BATTNEG_G50

STD_CONN_G

(Page 8)

AIR_G

FRAME

(Page 1)

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-58

Ground Distribution (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

2spd Axle Mtr2SPD AXLE

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 8

GND ZONE #3C

With ABS

GND ZONE #3D

With ABS ABS Delete

Without Rear Air SuspWith Rear Air Susp

Hydro Brakes Air Brakes

ABS Delete

4F MP280 SLDC

4M MP280 SLDC

REAR AIR SUSPRear Air Susp Sol

F

FITTERUP

J6-A

BATT GND

J7-A

B

#3BZONE

J2-A

C

ZONE#3C

J3-A

D

#3DZONE

J4-A

E

FITTER

J5-A

UP

Gnd Blk Connector Asm

J6-J7-

1206517212066545

A

#3A

J1-A

ZONE

BLK350.

2.0

BLK2.0

.350

350.

2.0BLK

BLK350.

SC350

2.0

.

2.0BLK

350

BLK350.

2.0

.350BLK

0.8

.350BLK

BODY BLDRGnd

0.8

IP CLUSTERLow Air Press Sw - Sec

16M GT280 SLDS

.350BLK

2.0

Fuel Tank FUEL HAND & STOR

0Ground Dist (LF8)GMT560 X08

Wednesday, April 19, 2006

12:49:17 pm

$IVEDWORK/h83014b__001s ch em ati c s he et1

h83014b15

001

BLK350.

0.8

8

Beta Agustin Velazquez GMT560

8F GT280 SLDD

8M GT280 SLDD

2.0BLK

350.

5.0

.350BLK

S

2.0

.350BLK

16F GT280 SLD

350.

0.8BLK

Tail LampsEXTERIOR LIGHTS

SB350

2SP_MTR_G

AIR_SW_GBB_G

350

TAIL_LP_G

SUSP_SOL_G

(Page 10)351

ZONE3A

STD_CONN_G

(Page 7)50

ZONE3B

350(Page 11)

FUEL_SEND_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-59

Ground Distribution (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

POWER MIRRORSH td Mir r Sw /L ed Exh Br k S w/ Ill um

EXHAUST BRAKEAir Susp Sw/LedREAR AIR SUSP

Air Susp Sw/IllumREAR AIR SUSP POWER MIRRORS

Htd Mirr Sw/IllumBRAKES

Traction Cntrl SwIP CLUSTERDPF Switch

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

CASE GNDENGINE

Panel Set: 9

To: GND ZONE #7A

750.

0.5BLK .750BLK

0.8

Wednesday, April 19, 200608 XGMT560

Ground Dist (LF8)0 GMT560Agustin VelazquezBeta

9

00115

h83014bsheet1schematic $IVEDWORK/h83014b__001

12:49:17 pm

Mkr Lmp SwEXTERIOR LIGHTS UPFITTER PROVISION

Pto Enable Sw/Illum

SA750

0.5BLK750.

BLK750.

0.5

750BLK0.5

.

2.0BLK

0.5

.750BLK

750.

Mkr Lmp Sw/IllumEXTERIOR LIGHTS

BLK750.

0.50.8BLK750

2 SPEED AXLE

.

Elec 2 Speed Sw

0.5

.750BLK .

0.5BLK

750

Pneumatic Sw IllumINTERIOR LIGHTS

.750BLK

0.5

STARTING & CHARGINGGenerator Gnd

CASE_5 CASE_6 CASE_7 CASE_8 CASE_9

Ground-Engine Case

CASE_1 CASE_2 CASE_3 CASE_4

Hi Idle Sw IllumENGINE CNTRLS

SB750

BLK750.

0.5

STARTING & CHARGINGStarter Motor

BLK750.

0.5

.

0.5BLK750

PSIR Defeat SwSIR

DPF_ILL

PSIR_G

ZONE7A

(Page 3)750

TCS_G

PTO_ILL_G 2SP_LP_GPNEU_SW_G HIS_ILL_G

H_MIR_ILL_GSUSP_ILL_G H_MIR_LED_GSUSP_LED_G EXH_ILL_G

MRKR2_SW_GMRKR_SW_G

STARTER_G GEN_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-60

Ground Distribution (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

Trans Temp SnsrTELL TALE

Oem UseDTC HYDRO BRAKES

Fluid Lvl Sw

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014b

FUEL TANKFUEL TANK

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 10

GND ZONE #9GND ZONE #10GND ZONE #3A

30M GTMXD SLDC1

BLK/WHT351.

2.0

40F GTMXD SLDD2

Secondary Fuel Tank

TANK_S

Primary Fuel Tank

TANK_P

M8

Secondary Tank TermA

B

0.8

.351BLK/WHT

BLK/WHT351.

0.8

FUEL HAND & STORPri Tank Static Gnd

0.8BLK/WHT

351.

M8

A

B

Primary Tank Term

G12F GT280 SLD

0.8BLK/WHT

351.

40M GTMXD SLDD2

BLK/WHT0.8

.351

G

C1

12M GT280 SLD

30F GTMXD SLD

Sec Tank Static GndFUEL HAND & STOR

SC351

1.0

.351BLK/WHT

Wednesday, April 19, 200608 XGMT560

Ground Dist (LF8)0 GMT560Agustin VelazquezBeta

10

00115

h83014bsheet1schematic $IVEDWORK/h83014b__001

12:49:17 pm

MD_RTN

3A_ENG

(Page 13)351

PFTANK_G350

(Page 8)

ZONE3A

FLS_GTEMP_SNSR_G

SFTANK_G350

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-61

Ground Distribution (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

HEADLAMPSRight Headlamp Rf Turn/Park Lmps

EXTERIOR LIGHTSLeft HeadlampHEADLAMPS

Air DryerAIR BRAKES IP CLUSTER

Low Air Press Sw PrimHVAC

Vacuum Pmp Lf Turn/Park LmpsEXTERIOR LIGHTSHORNS

Horns

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

GND ZONE #3B

C

FWDLP

100A

5M GT280 SLD

-

19

Page

Panel Set: 11

BEAM_G

Splice for Ether Injector

2.0

-

TXL

Page

SAME AS LEFT

SF350

1.0

350

15409273

50

1

RTRNPRK_G

See: 14C-11

TXL

Right Headlamp

FWDLP

.350

BLK

110A8A-Rf Turn/Park Lmps

.

50

18A-

350

BLK

R_FWDLP

19

11

Beta Agust in Velazquez GMT5600Ground Dist (LF8)GMT560 X08

Wednesday, April 19, 2006

12:49:17 pm

$IVEDWORK/h83014b__001sch ematic sheet1

h83014b15

001

0.8

.350BLK

BLK350.

3.0

Left HeadlampAir Dryer Low Air Press Sw - Prim

5M GT280 SLDC

.350BLK

0.8

BLK1.0

.350

2.0

.350BLK

1.0

.350BLK

350.

5.0BLK

12M GT280 SLDA

C5F GT280 SLD

SF350

BLK350.

1.0

5F GT280 SLDC

C 3F MP280 SLD

Vacuum Pmp

SD350

HYDRO BRAKESElec Air Comp

BLK350.

2.0

SE350

350.

BLK350.

1.0

2.0BLK

Lf Turn/Park Lmps

350BLK

3.0

.

Horns

3M MP280 SLDC

A12F GT280 SLD

1.0

.350BLK

LTRNPRK_GBEAM_G350AIR_DRY_G AIR_PR_SW_GVAC_PUMP_G

(Page 8)

ZONE3B

HORN_A_G

EAC_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-62

Ground Distribution (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

REAR_DOOR

R R Win Sw Illum

BLK.

Page

SD550

=&A31&CREWCAB

19

TXL

.1.0

REAR_DOOR

Panel Set: 12

550

TXL

8A-

.

19

.

550

19

1.0

R R Door Jamb Sw

12M GT280

POWER WINDOWS

Page

50

RR_WIN_G

-8A-120B

K

4

0.8

=&A31&CREWCAB

=&A31&CREWCAB

50 50

0.8

BLK

BLK

REAR_RDOOR

To: GND ZONE #5

TXL

Same as left

TXL

550

114A

RRDOORJAM_G

INTERIOR LIGHTS

REAR_DOOR

-

15326018

REAR_DOOR

=&CREWCAB-A31

550BLK

50

2

19

Rear Htr Sw IllRear Heater

550.

0.5BLK

10M GT280J

INTERIOR LIGHTSL R Door Jamb Sw

12M GT280K

SF550

12F GT280K

SD550

BLK550.

1.0

10F GT280J

Rear HeaterRear Heater Relay L R Win Sw Illum

POWER WINDOWS

1.0

.550BLK

0.8

.550BLK

1.0

.550BLK

BLK550.

1.0

BLK550.

0.8

BLK550.

1.0

1.0

.550

BLK

s ch em ati c s he et1

h83014b15

00112

Beta Agustin Velazquez GMT5600Ground Dist (LF8)GMT560 X08

Wednesday, April 19, 2006

12:49:17 pm

$IVEDWORK/h83014b__001

Rear HeaterRear Heater Motor

BLK550.

1.0

12F GT280K

LRDOORJAM_GLR_WIN_G

ZONE5

(Page 4)550

R_HTR_MTR_G R_HVAC_GR_HTR_RLY_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-63

Ground Distribution (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 13

SE351

SB351

0.8BLK/WHT

351.

BLK/WHT351.

1.0

.351BLK/WHT0.8

0.8

.351BLK/WHT

ENGINE CNTLSEcu

1.0BLK/WHT

351.

ENG CNTLSLow Coolant Sw

BLK/WHT351.

1.0

EcuENGINE CNTLS

BLK/WHT1.0

.351

.

1.0BLK/WHT

351

BLK/WHT0.8

.351

0.8

.351BLK/WHT

SF351

SD351

TcmLCT TRANSMISSION

.351BLK/WHT

00115

h83014bsheet1schematic $IVEDWORK/h83014b__001

12:49:17 pm

Wednesday, April 19, 200608 XGMT560

Ground Dist (LF8)0 GMT560Agustin VelazquezBeta

13

1.0

1.0

.351BLK/WHT

MD TRANSMISSIONTcm

EcuEcuENGINE CNTLS ENGINE CNTLS

BLK/WHT1.0

.351

ENGINE CNTLSEcu

1.0

.351BLK/WHT

TRANSMISSIONTcm

ENGINE CNTLSEcu

LCT_GG

3A_ENG

(Page 10)

ECU_PWR3_G ECU_SNSR2_G ECU_PWR1_G ECU_SNSR1_GECU_PWR2_G

351 TCM1_G MD_G LOW_COOL_G

ECU_PWR4_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-64

Ground Distribution (LF6) 7.2L L6 Caterpillar ® C7 - Diesel

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

ENG GND

Panel Set: 1

GND ZONE #2C

GND ZONE #2A

GND ZONE #2B

GND ZONE #S1ENGINE TO FRAME GND

Gz S1e Clip

M12

A

B

08 XGMT560

Ground Dist (LF6)0 GMT560Agustin VelazquezBeta

1

0018

h83014csheet1schematic $IVEDWORK/h83014c__001

12:51:27 pm

Wednesday, April 19, 2006

.251BLK/WHT2.0

50.0

.50BLK

Ground - Engine

ZONE_2B

STUDSTUD

ZONE_S1

M12

Gz S1f ClipA

B

B

Gz 2b Term

M12

A

2.0

.251BLK/WHT

A

B

Gz 2a Term

E 1/2

Starter MotorSTARTING & CHARGING

M12A

B

Start Gnd Term

ENG CNTLSEcu

50.

62.0BLK

ENG CNTLSEcu

CAT_A_G CAT_B_G

(Page 2)

START_G

START_G

(Page 7)

FRAME

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-65

Ground Distribution (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

POWER DISTIgn A Rly

HVACAc ClutchAir Brake Rly

AIR BRAKESIgn B Rly

POWER DIST

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

GND ZONE #2C

Panel Set: 2

Ground Dist (LF6)0 GMT560

SV250

Agustin VelazquezBeta2

0018

h83014csheet1schematic $IVEDWORK/h83014c__001

12:51:27 pm

Wednesday, April 19, 200608 XGMT560

Gz 2c Term

E 1/2

A

B

BLK250.

0.8

.250BLK

0.8

BLK250.

2.0

.0.8

BLK250

30M GTMXD SLDB5

4M GT150 SLDC

.250BLK0.8

UPFITTER PROVISIONSPto Solenoid

B530F GTMXD SLD

SS250

BLK250.0.8

2.0

.250BLK

.250BLK

0.8

4F GT150 SLDC

BLK0.8

.250

(Page 1)

START_G

IGNA_RLY_G IGNB_RLY_G CLUTCH_GAIR_BRK_G

PTO_LOAD_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-66

Ground Distribution (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

Headlamp SwINTERIOR LIGHTS

Dlc Pwr GndDLC

Turn/Haz/FlashEXTERIOR LIGHTS

Bat RtnDTCIP CLUSTER

Ipc Pwr Gnd

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014c

BDY GND

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 3

GND ZONE #7B

GND ZONE #7A

TELL TALETtm - IAH

0.8

.750BLKBLK

750.

Chime MdlCHIME

0.8

750.

0.8Roof Marker Lps

EXTERIOR LIGHTSBLK

750.

0.5BLK

.750BLK

1.0

SM750

2.0

.750BLK

LCT TRANSMISSIONOverdrive Defeat Sw

Cigar LighterAUXILLARY PWR

B7

0.5

30M GTMXD

1.0

BLK750.

.750BLK

BLK750.

A2

1.0

1.0

.750BLK

Ttm - ExhaustTELL TALE

3.0

.750BLK

0.8

.750BLK

Overdrive Defeat Sw IllumLCT TRANSMISSION

0018

h83014csheet1schematic $IVEDWORK/h83014c__001

12:51:27 pm

Wednesday, April 19, 200608 XGMT560

Ground Dist (LF6)0 GMT560Agustin VelazquezBeta

3

Low Wash Fluid SwWIPERS

Wiper MtrWIPERS

STUD

ZONE_7

0.5BLK

750.

Park Brake SwPARK BRAKE

0.5

.750BLK

HORNHorn Switch

2.0

.750BLK

Diff Lk SwTELL TALE

B

Gz 7a Term

M6.3

A

0.5BLK

750.

30F GTMXDB7

BLK750.

1.0

SN750

Drl MdlDRL

SY750

BLK

750.

3.0

1.0

.750BLK

BLK

16M GT280B

1.0

.750 3.0

.750BLK

BLK750.

0.5

A2

WIPERSWasher Pump

SC750

16F GT280B

0.5BLK

750.

.750BLK

1.0

ENGINE CNTRLS

BLK750.

0.5

Hi Idle Sw Illum

TRACTOR WIRINGTractor Conn

1.0

.750BLK

CHIME_G EXH_TT_G750 IAH_TT_G

MARKERS_G

TRACTOR_G

CIGAR_G

SERIAL_G750

P_BRK_G750

ODDS_SW_GODDS_ILL_G

DATA1_G

WSHR_PMP_GLOW_WASH_G

HIS_LED_G

TRNHAZ_G HEADLPSW_G

WPR_MTR_G

IP_PWR_G

DRL_G

DIFF_LK_G HORN_SW_G

ZONE7A

(Page 9)

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-67

Ground Distribution (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

147B

POWER MIRRORS

2147B8A- -8A-Pass Htd Mir Head

PagePageRh Mirror Mrkr Lp

-2

POWER MIRRORS Pass Win SwPOWER WINDOWS

Drv Window SwPOWER WINDOWS

Pass Door Jamb SwINTERIOR LIGHTING

Mirror SwPOWER MIRRORSPOWER MIRRORS

Lh Mirror Mrkr LpPOWER DOORS

Drv Dr Lck Sw Drv Htd Mir HeadPOWER MIRRORS

Pass Dr Lck SwPOWER DOORS

Drv Door Jamb SwINTERIOR LIGHTING

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

BDY GND

550

8F MP150

OSRVM

R_H_MIR_G

TXLBLK

RH_MRK_G

=&DB6/DB7

OSRVM

GND ZONE #5

50

550BLK

A

19TXL

Panel Set: 4

SAME AS LEFT B OSRVM

19

=&DB6/DB8

0.8

.

0.8

.

50

12065398

Drv Door RlyPOWER DOORS

22F GTMXDB8

A

.550BLK

0.8

8

0014

Beta Agustin Velazquez GMT5600Ground Dist (LF6)GMT560 X08

Wednesday, April 19, 2006

12:51:27 pm

$IVEDWORK/h83014c__001s ch em ati c s he et1

h83014c

B8

BLK550.

3.0

22M GTMXD

BLK0.5

.550

22M GTMXDB8

0.8

.550BLK

1.0

.550BLK

0.8

.550BLK

8F MP150B

1.0

.550BLK

M6.3

Gz 5 TermA

B

BLK550.

1.0

BLK550.

0.5

STUD

ZONE_5

BLK550.

1.0

550.

3.0BLK

M6.3

A

B

Gz 5 Term

BLK550.

0.8

3.0

.550BLK

BLK550.

0.8

550BLK

0.5

.

0.8

.550BLK

1.0

.550BLK

SB550

3.0

.550BLK

BLK550.

0.5

BLK550.

0.5

.550

Rfa MdlKEYLESS ENTRY

BLK1.0

3.0

.550BLK

SC550

SA550

BLK550.

0.5

B8

8M MP150B

22F GTMXD

1.0BLK

550.

0.5

.550BLK

A

1.0

.550BLK

8M MP150B

BLK550.

0.8

A

RFA_G

ZONE5

(Page 12)

DRV_LK_GDR_WIN_G550 L_H_MIR_G LH_MRK_G LDOORJAM_G PASS_LK_G RDOORJAM_GPASS_WIN_G

LK_RLY_G

MIR_SW_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-68

Ground Distribution (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

EXTERIOR LIGHTSRh Trailer RlyTemp Mtr

HVACAuxilary Outlets

AUX PWRRear Defog Cntl

REAR DEFOGGER TELL TALETrans Temp Gauge Illum Chmsl Rly

EXTERIOR LIGHTSLh Trailer Rly

EXTERIOR LIGHTS POWER MIRRORSHtd Mirror Rly

HVACHvac Head

TELL TALESys Air Press Gauge IllumAuxilary Outlets

AUX PWR

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

BDY GND

GND ZONE #6

Panel Set: 5

GND ZONE #4B

BLK0.5

.450

450.

5.0BLK

450.

0.5BLK

0.5

.450BLK

450.

1.0BLK

Gz 6 Term

M6.3

A

B

SK450

0.5

.450BLK

sheet1schematic $IVEDWORK/h83014c__001

12:51:27 pm

Wednesday, April 19, 200608 XGMT560

Ground Dist (LF6)0 GMT560Agustin VelazquezBeta

5

0018

h83014c

BLK450.

1.0

1751BLK/WHT0.5

.

.450BLK

0.8

5.0

.450BLK

BLK1.0

.450

CASE

CASE_P

STUD

ZONE_4 ZONE_6

STUD

SH450

0.8

.450BLK

1.0

.450BLK

HVACBlower Mtr

MD TRANSMISSIONElec Shift Sel

0.5BLK

450.

16M GT280P

POWER DISTIgn4 Rly

0.8

.450BLK

BLK

16F GT280P

2.0

.450

Brake Lp RlyEXTERIOR LIGHTS

450.

0.8BLK

Gz 4b TermA

B

M6.3

0.8

.450BLK

BLK/WHT1751.

0.8

SdmSIR

SJ450

1.0

.450BLK

SDM_G

ZONE4A

(Page 6)

TEMP_CNTL_G HVAC_FOG_GAUX2_G

SHIFT_LP_G

AUX1_G RH_HAZ_G LH_HAZ_G

BRKLP_RLY_G

CHMSL_RLY_G

BLWR_RLY_G

H_MIR_RLY_G HVAC_G GAUGES_G

IGN4_RLY_G

PNEUTC_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-69

Ground Distribution (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

BDY GND

RDOANT_G

GND ZONE #4A-

BODY TO FRAME GND

150A

RADIO

GND ZONE #S2

8A- 1PageAntenna Shield

Panel Set: 6

BLK50.

Ip Signal GndIP CLUSTER

50.0

6

0018

h83014csheet1schematic $IVEDWORK/h83014c__001

12:51:27 pm

Wednesday, April 19, 200608 XGMT560

Ground Dist (LF6)0 GMT560Agustin VelazquezBeta

SdgSERIAL DATA GATEWAY

Gz S2b Term

M8

A

B

RADIO/CHIMERadio/Chime Module

1451.

0.8BLK/WHT

1451.

0.8

Dlc Sig GndDATA LINK CONN

BLK/WHT

Gz 4a Term

M6.3

A

B

ZONE_S2

STUD Ground-Body

CASE1_P

CASESTUD

ZONE_8

0.8

.1451

SB1451

BLK/WHT

ZONE_S2

STUD

BLK850.

2.0

Gz 8 Term

M6.3

A

B

Rear Defog GridREAR DEFOGGER

BLK/WHT1451.

1.0Gz S2f Term

A

B

M12

BLK/WHT0.8

.1451

RADIO_GIP_SIGNAL_G DATA2_G SDG_G

(Page 5)

ZONE4A

DEFOG_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-70

Ground Distribution (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

EbcHYDRO BRAKES

EbcHYDRO BRAKES

Hydromax SwHYDRO BRAKES

Hydromax MtrHYDRO BRAKESAIR BRAKES

Ebc

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014c

FRAME GND

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 7

GND ZONE #12B

GND ZONE #1A

GND ZONE #1B

GND ZONE #B

5.0

.150BLK

M12

Gz 1b TermA

B

A

B

M12

Gz B Term

0.8

.151BLK/WHT

8.0

.151BLK/WHT

3.0

.151BLK/WHT

13.0BLK

50.

151.

13.0BLK/WHT

ZONE_BZONE_S1

STUD Ground-FrameSTUD

GND_CONN

STUD

ZONE_1ZONE_12

STUDSTUD

SD151

SA151

A

B

Gz 1a Term

M12

Fam 3 Trailer ConnTRAILER WIRING

0 GMT560Agustin VelazquezBeta7

0018

h83014csheet1schematic $IVEDWORK/h83014c__001

12:51:27 pm

Wednesday, April 19, 200608 XGMT560

Ground Dist (LF6)

3.0

.151BLK/WHT

3.0

BATTERIESBattery (Neg)

BLK/WHT151.

Gz 1a Term

M12

A

B

BLK/WHT151.

8.0

Gnd Stud Conn TermA

B

SB151

M12

HYD_A_GHYD_B_GHYMAX2_G

TRAILER_G

50 BATTNEG_G

HYMAX1_G

STD_CONN_G

(Page 8)

AIR_G

(Page 1)

FRAME

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-71

Ground Distribution (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

2SPD AXLE2spd Axle Mtr

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

GND ZONE #3C

GND ZONE #3D

Panel Set: 8

ABS DeleteWith ABS

With Rear Air Susp Without Rear Air Susp

Air BrakesHydro Brakes

With ABSABS Delete

350.

2.0BLK

8M GT280 SLDD

BLK2.0

.350

.350BLK

2.0

8

0018

h83014csheet1schematic $IVEDWORK/h83014c__001

12:51:27 pm

Wednesday, April 19, 200608 XGMT560

Ground Dist (LF6)0 GMT560Agustin VelazquezBeta

0.8

.350BLK

4M MP280 SLDC

Rear Air Susp Sol

REAR AIR SUSP

5.0BLK

350.

S

2.0

.350BLK

16M GT280 SLD

Fuel Tank

FUEL HAND & STOR

2.0

.350BLK

BLK350.

0.8

0.8BLK

350.

SB350

2.0

.350BLK

BLK2.0

.350

4F MP280 SLDC

SC350

BODY BLDRGnd

EXTERIOR LIGHTSTail Lamps

S 16F GT280 SLD

BLK350.

2.0

8F GT280 SLDD

BLK350.

2.0

D

#3DZONE

J4-A

E

FITTER

J5-A

UP

F

FITTERUP

J6-A

BATT GND

J7-A

J6-J7-

1206517212066545

A

#3A

J1-A

ZONE

B

#3BZONE

J2-A

C

ZONE#3C

J3-A

Gnd Blk Connector Asm

IP CLUSTERLow Air Press Sw - Sec

0.8

.350BLK

SUSP_SOL_G

2SP_MTR_G

BB_G

AIR_SW_G

(Page 10)351

ZONE3A

350 FUEL_SEND_G

STD_CONN_G

(Page 7)50

ZONE3B

350(Page 11)

TAIL_LP_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-72

Ground Distribution (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

BRAKESTraction Cntrl Sw Htd Mirr Sw/Led

POWER MIRRORSAir Susp Sw/IllumREAR AIR SUSP POWER MIRRORS

Htd Mirr Sw/IllumREAR AIR SUSP

Exh Brk Sw/IllumEXHAUST BRAKE

Air Susp Sw/Led DPF SwitchIP CLUSTER

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

CASE GNDENGINE

To: GND ZONE #7A

Panel Set: 9

ENGINE CNTRLSHi Idle Sw Illum

BLK

750.

0.5

UPFITTER PROVISIONPto Enable Sw/Illum

BLK

750.

0.5

9

Beta Agust in Velazquez GMT5600Ground Dist (LF6)GMT560 X08

Wednesday, April 19, 2006

12:51:27 pm

$IVEDWORK/h83014c__001sch ematic sheet1

h83014c8

001

Generator GndSTARTING & CHARGING

BLK750.

2.0

BLK

750.

0.5

0.5BLK

750.BLK

750.

0.5

CASE_7 CASE_8 CASE_9

Ground-Engine Case

CASE_1 CASE_2 CASE_3 CASE_4 CASE_5 CASE_6

Mkr Lmp SwEXTERIOR LIGHTS

.750BLK

0.5

0.5

.

Mkr Lmp Sw/IllumEXTERIOR LIGHTS

750

BLK

INTERIOR LIGHTSPneumatic Sw Illum

.750BLK

0.5 0.5

.750BLK

750.

0.5BLK

BLK750.

0.5

SA750

.

0.8BLK

750

0.5

.750BLK

.750

BLK0.8

PSIR Defeat SwSIR

SB750

2 SPEED AXLEElec 2 Speed Sw

DPF_ILL

PSIR_G

ZONE7A

(Page 3)750

TCS_G

MRKR2_SW_GMRKR_SW_G PTO_ILL_G 2SP_LP_GPNEU_SW_G HIS_ILL_G

H_MIR_ILL_GSUSP_ILL_G H_MIR_LED_GSUSP_LED_G EXH_ILL_G

GEN_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-73

Ground Distribution (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

LCT TRANSMISSIONTcmWif Snsr

HTD FUEL/WATER IN FUEL HYDRO BRAKESFluid Lvl Sw

TRANSMISSIONTcm Tcm

MD TRANSMISSIONTrans Temp Snsr

TELL TALE DTCOem Use

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014c

FUEL TANK

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

FUEL TANK

GND ZONE #3A

GND ZONE #9

Panel Set: 10

GND ZONE #10

BLK/WHT0.8

.351

12M GT280 SLDG

0.8BLK/WHT

351.

Primary Fuel Tank

TANK_P

FUEL HAND & STORPri Tank Static Gnd

0.8

.351BLK/WHT BLK/WHT

351.

1.0

G12F GT280 SLD

40F GTMXD SLDD2

SB351

BLK/WHT0.8

.351

M8

Primary Tank TermA

B

BLK/WHT351.

2.0

BLK/WHT351.

0.8

C1 30M GTMXD SLD

8

00110

Beta Agustin Velazquez GMT5600Ground Dist (LF6)GMT560 X08

Wednesday, April 19, 2006

12:51:27 pm

$IVEDWORK/h83014c__001schematic sheet1

h83014c

D2

0.8

.351BLK/WHT

40M GTMXD SLD

BLK/WHT351.

0.8

.351BLK/WHT0.8

Secondary Fuel Tank

TANK_S

30F GTMXD SLDC1

SC351

Secondary Tank Term

M8

A

B

Sec Tank Static GndFUEL HAND & STOR

.351BLK/WHT0.8

MD_RTN

SFTANK_G350PFTANK_G350

WIF_G MD_G LCT_GGTCM1_G351

ZONE3A

(Page 8)

FLS_GTEMP_SNSR_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-74

Ground Distribution (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

110A-8A- 100A 8A-Page

HEADLAMPS

1PageRight Headlamp Rf Turn/Park Lmps

EXTERIOR LIGHTS

1 -

HEADLAMPSLeft HeadlampLow Air Press Sw - Prim

IP CLUSTERENG CNTLSEther Sol

HVACVacuum Pmp Lf Turn/Park Lmps

EXTERIOR LIGHTSHORNSHorns

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

110A

5M GT280 SLD

.

8A

2.0 TXL

BEAM_G

1.0

=&FAM3

R_FWDLP

100A

Panel Set: 11

350

=&FAM3

350

8A

FWDLP50

Page

19BLK

BLK

1

RTRNPRK_G

19

FWDLP

Page 1

TXL

50

.

350

SF350

SAME AS LEFTC

15409273

.350BLK

0.8

5F GT280 SLDC

2.0

.350BLK

3M MP280 SLDC

3F MP280 SLDC

Air DryerAIR BRAKES

SF350

.

2.0BLK

350

350.

1.0BLK

0.8

.350BLK

1.0

.350BLK

2.0BLK

350.

BLK350.

1.0

SE350

11

0018

h83014csheet1schematic $IVEDWORK/h83014c__001

12:51:27 pm

Wednesday, April 19, 200608 XGMT560

Ground Dist (LF6)0 GMT560Agustin VelazquezBeta

0.8

.350BLK

3.0BLK

350.

350BLK

3.0

.

BLK350.

5.0

12M GT280 SLDA

BLK350.

1.0

HYDRO BRAKESElec Air Comp

1.0

.350BLK

C5M GT280 SLD

C5F GT280 SLD

SD350

12F GT280 SLDA

AIR_PR_SW_G BEAM_G350 LTRNPRK_G

AIR_DRY_G

VAC_PUMP_G ETHER_G

(Page 8)

ZONE3B

HORN_A_G

EAC_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-75

Ground Distribution (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83014c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

REAR_RDOOR

-

REAR_DOOR

.

R R Door Jamb Sw

BLK

K

INTERIOR LIGHTS

BLK

4R R Win Sw Illum

50

50

BLK550

12M GT280

Page

1.0

Same as left

15326018

190.8

.

TXL

REAR_DOOR

550

114A

550

POWER WINDOWS

19

REAR_DOOR

TXL

REAR_DOOR

.=&CREWCAB-A310.8

SD550

19

RRDOORJAM_G

50

BLK

.

Page

TXL

8A-

=&A31&CREWCAB

8A-

1.0

To: GND ZONE #5

2

=&A31&CREWCAB

-

=&A31&CREWCAB

RR_WIN_G

19

TXL

550

120B

Panel Set: 12

50

SF550

SD550 BLK550.

0.8

.550BLK

1.0

Rear HeaterRear Heater Motor

10M GT280J

BLK550.

1.0

12F GT280K

BLK550.

1.0

K12M GT280

1.0

.550BLK

L R Win Sw IllumPOWER WINDOWS INTERIOR LIGHTS

L R Door Jamb SwRear Htr Sw IllRear Heater

BLK550.

1.0

BLK550.

1.0

10F GT280J

Rear Heater RelayRear Heater

BLK550.

0.5 0.8

.550BLK

.550BLK

1.0

12F GT280K

12:51:27 pm

Wednesday, April 19, 200608 XGMT560

Ground Dist (LF6)0 GMT560Agustin VelazquezBeta

12

0018

h83014csheet1schematic $IVEDWORK/h83014c__001

R_HTR_MTR_G R_HVAC_GR_HTR_RLY_G LRDOORJAM_G

ZONE5

(Page 4)550

LR_WIN_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-76

Power Take-Off (L18) 8.1L V8 GMPT VORTEC® - Gas –

(LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel – (LF8) 7.8L L6 Isuzu 6H - Diesel

ENGINE CNTLSPcm/EcuPcm/Ecu

ENGINE CNTLS

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83018a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

B

001

50

488

UPC

494

50

001

A

.488

2663 2664TXL

UPC

10M MP150 SLDG

2561

PTO_UPFIT

12129589

UPC

5019

50

19

TXL

BLK

BLK

PTO_UPFIT TXL

TXL

.

0.8

0.8

.

FNA

A

TXL0.8

SPLICE

001

B

2522

SPLICE

D

2522

tap_up_sw pto_solenoid

19

Pto Kill Sw

GRN LT

B

.

50

B

0.8

tap_dn_sw

A

H

.

F

2522

PTO_UPFIT

Pto Load

19

TBDFNA

0.8

TXL

PTO_UPFIT

PPL

YEL

BLU LT

12129589

TBD

.

50

PTO_UPFIT10M MP150 SLD

Panel Set: 1

C

YEL

Load Engage Switch

GRN LT

WHT

YEL

Upfitter Supplied

JE

19

pto_killUPC

PTO_UPFIT

TXL

50

0.8

PTO_UPFIT

TXL

PTO_UPFIT

FNA

Tap Up Switch

19

PTO_UPFIT

50

19

0.8

.

PTO_UPFIT

ld_engage_sw

5019

19 19

0.8

.

500.8

001

TXL

TXL

..

TBD

0.8

250

B PTO_UPFIT

A

.

19BLK

Tap Down Switch

0.8

TAN

250

PTO_UPFIT

19

PTO_UPFIT

TXL

TBD

TBD

FNA

PTO_UPFIT

001

0.8

POWER DISTUh - Eng1

10A

.

5050

250

FNA

TXL

UPC

GRN LT0.5

0.5GRN LT

488.

30M GTMXDA1

.488

Gnd Zone #7AGND DIST

30F GTMXDA1

.488GRN LT0.8

J

Pcm/Ecu

B

.2664TAN

0.8

C

0.8GRN LT

488.

.488GRN LT1.0

D

SA488

0.5GRN LT

488.

40M GTMXD SLDC3

TELL TALETt Module

A14

40F GTMXD SLDC3

0.5GRN LT

488.

24M GTMXD SLDC1

.488GRN LT0.5

24F GTMXD SLDC1

.488GRN LT0.8

08

12:53:42 pm

$IVEDWORK/h83018a__001sc he ma ti c sh ee t1

h83018a10

001Wednesday, April 19, 20061

Beta Agustin Ve lazquez GMT5600Pto (L18/LMM/LF8)GMT560

0.8PPL

2663.

F10F MP150 SLD

G

X

0.8GRN LT

488.

CRUISE CNTLCruise Cntl Sw

ENGINE CNTLS

CRUISE CNTLCruise Cntl Sw

Pcm/Ecu

10F MP150 SLDH

GND DISTGnd Zone #2B

E

INTERIOR LIGHTING

Headlamp Illum

0.8GRN LT

488.

D

E

GND GND

F

GND DISTGnd Zone #7A

488.

Pto Enable Switch

IGN

A

B

ILLUM

C

.488GRN LT0.50.5

GRN LT

A14

SB488

488 PTO_ENABLE

PTO_SW_P239

PTO_LP2509

PTO_ILL_G750 750 PTO_LED_G

PTO_TTM

2522 PTO_FEDBACK

(Page 2)

ENBL_RLY

RLY2

(Page 2)

(Page 2)

ENGAGE

PTO_G250SET_COASTRES_ACCEL

494 PTO_ENG_DIS

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-77

Power Take-Off (L18) 8.1L V8 GMPT VORTEC® - Gas –

(LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel – (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83018a

86

87

30

85

12193604

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 2Wednesday, April 19, 2006001

10

h83018asheet1schematic $IVEDWORK/h83018a__001

12:53:42 pm

08 XGMT560

Pto (L18/LMM/LF8)0 GMT560Agustin VelazquezBeta

2

D7D9

E7 E9

40F GTMXD SLDC11

PTO Relay

Uh - Pto Rly

15A

POWER DISTUh - Eng 3

B10

.

1.0

WHT2561.

1.0

40M GTMXD SLDC11

PPL2562

C10

C10

1.0

.2561WHT

.

0.8

10A

Uh - Eng1POWER DIST

WHT2561

B10

1.0PNK

539.

Pcm/EcuENGINE CNTLS

ENGINE CNTLSPcm/Ecu

.239PNK

8630

8587

PTO Relay

12193604

J30

J85

J86

J87

0.8

40M GTMXD SLDB1

IP2 - Pto Rly

40F GTMXD SLDB1

1.0GRN LT

488.

2561

ENGAGE

(Page 1)

PTO1_RLY_P

PTO_ENGAGE2562

(Page 1)488

RLY2

ENBL_RLY

488(Page 1)

539 PTO_RLY_P

(Page 1)

ENGAGE

2561

2562 PTO_ENGAGE_1

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-78

Power Take-Off (LF6) 7.2L L6 Caterpillar ® C7 - Diesel

ENGINE CNTLSEcu Ecu

ENGINE CNTLS ENGINE CNTLSEcu Body Bldr Trans Conn

TRANSMISSION

10A

Uh - Eng1POWER DIST

EcuENGINE CNTLS

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83018c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

0.8

.2522

BLK/WHT250

YEL

ld_engage_sw

E

TXL

TXL 0.8

.

C

PTO_UPFIT

494

.

2663

BLK/WHT

PTO_UPFIT

2664

A

001

.

451

1950

PTO_UPFIT

YELTXL

Load Engage Switchtap_dn_sw

D

19 TXL

TXL

2522

50

0.8TXL

2561

0.8

001

PTO_UPFIT

.

Pto Kill Sw

190.8

451

19

WHT

TAN

J

tap_up_swUPC

Pto Solenoid

19

19

TBD

0.8

0.8

SPLICE

TXL

0.8 50

50

50

0.8

PTO_UPFIT

50

F

UPC

19

B

TXL

PTO_UPFIT

A

PTO_UPFIT

A

50

.

TBDTBD

12129589

G

PTO_UPFIT10M MP150 SLD12129589

H

Panel Set: 1

.

19

UPCUPCpto_solenoid

A

B

B

50

001

TBD

001

BLK

PTO_UPFIT

YEL

Upfitter Supplied.

2522

001Tap Down Switch

10M MP150 SLDB

A

0.8

50

TBDFNA

TXL

B

FNA

19

TXLBLK/WHT

FNAFNA

0.8

.

PTO_UPFIT

D

BLU LT

5050TXL

.

PTO_UPFIT

19 PTO_UPFIT

451

pto_kill

PPL

Tap Up Switch

FNAUPC

PTO_UPFIT

19

.

F

GRN LT488.

0.5GRN LT

488.

0.8

E

0.8GRN LT

488.

10F MP150 SLDG

.2663PPL

0.8 0.8TAN

2664.

A1

WHT

2561.

0.8

40F GTMXD SLDC3

30F GTMXD

Gnd Zone #7AGND DIST ENGINE CNTLS

Ecu

0.5

10F MP150 SLDH

.2522

0.8

.488GRN LT

TRANSMISSIONTcm

SA2522

YEL

10A

EcuENGINE CNTLS

ENGINE CNTLS

A

B

Ecu

30M GTMXDA1A14

.488GRN LT0.5

GND

F

A14

GND

A

B

ILLUM

CD

E

GND

08 XGMT560

Pto (LF6)0 GMT560Agustin VelazquezProd

1

ENGINE CNTLSEcu

Pto Enable Switch

GND DIST

0014

h83018csheet1schematic $IVEDWORK/h83018c__001

1:13:24 pm

Wednesday, April 19, 2006

.2522

0.8

Gnd Zone #2C

40M GTMXD SLDC3

Headlamp IllumINTERIOR LIGHTING YEL

SA488

C

ENGINE CNTLSEcu

2522 TCM_PTOSTAT

J

PTO_LP2509

250 PTO_LOAD_G

239 PTO_LED_P BB_TRANSTAP_UP TAP_DOWN

PTO_SW_PPS239451 PTO_UP_PPS 451 PTO_DN_PPS 451 PTO_KIL_PPS

ENGAGE

(Page 2)

PTO_ILL_G750 PTO_LED750

494 PTO_ENG_DIS

(Page 2)

ENBL_RLY

PTO_ENABLE488

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-79

Power Take-Off (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83018c

86

87

30

85

12193604

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 2

PTO Relay

Uh - Pto Rly

D7D9

E7 E9

0.8

GRN DK/WHT2665.

15A

Uh - Eng 3POWER DIST

EcuENGINE CNTLS

Prod Agust in Velazquez GMT5600Pto (LF6)GMT560 X08

Wednesday, April 19, 2006

1:13:24 pm

$IVEDWORK/h83018c__001schematic sheet1

h83018c4

0012

2561

ENBL_RLY

488(Page 1)

C_PTO_RLY_P539ENGAGE_PTO

ENGAGE

(Page 1)

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-80

Auxiliary Power

POWER DISTPOWER DIST POWER DIST

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83019a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

A

BC

has Fuse has Fuse

Family 2

has Fuse

Family 2

Panel Set: 1

Family 2

A

Cigar Lighter

A

BC

Aux Pwr1

POWER DISTIp1 - Pwr Post

20A

2M MP280

B

1.0

.750BLK

Aux Pwr2

A

BC

2M MP280

20A

1.0ORN

840.

Gnd Zone #4BGND DIST

POWER DISTIp1 - Pwr Post

2F MP280B

1.0

.840ORN

Gnd Zone #4B

20A

Ip1 - Pwr PostPOWER DIST

$IVEDWORK/h83019a__001

1:17:48 pm

Wednesday, April 19, 200608 XGMT560

Auxiliary PowerB GMT560Agustin VelazquezPilot

1

Gnd Zone #7AGND DISTGND DIST

CIGAR_P

2F MP280A

0012

h83019asheet1schematic

CIGAR_G750AUX2_G450

AUX2_P840

AUX1_G450

840 AUX1_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-81

Engine Controls (L18) 8.1L V8 GMPT VORTEC® - Gas

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020a

+5V +5V+V +5V

+V

+5V

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 1

GRN LT432.

0.5

J2-7

LINEAREGR

CONTROLHI

J2-58

ENGINEOIL PRESSSENSOR

CONTROLLO

J2-41

LINEAREGR

MAP

J2-32 J2-24

THROTTLE

SENSORPOSITION

5VB SUPPLY

J1-8

1D

J1-80

VREF RTN E

J1-74

ENGINECOOLANT TEMP

5VB SUPPLY

J1-7

1C

J1-63

VREF RTN CVREF RTN D

J1-60J1-54

VREF RTN B

J1-55

LINEAR

POSITIONEGR

5VB SUPPLY1A

J1-48

5VB SUPPLY1B

J1-47J1-41

VREF RTN A

PCM

0.5

.469ORN/BLK

LOW

A

REF

B

PRESS

C

Sen - Oil Press

0013

h83020asheet1schematic $IVEDWORK/h83020a__001

1:18:57 pm

Wednesday, April 19, 200608 XGMT560

Engine Controls (L18)0 GMT560Agustin VelazquezBeta

1

0.8

BLK407.

0.5

GRA720. .705

GRA

0.8

.332TAN/WHT

0.8

.410YEL

0.5

Sen Asm-Cool Temp

A

REF

B

.597GRA

0.5

Sensor - Map

A

REFLOW

B

MAP

C

5VREF

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-82

Engine Controls (L18) 8.1L V8 GMPT VORTEC® - Gas (continued)

SPEED SNR LOWSpeed Snr

TOSS

Trans Speed Snsr (Man)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020a

+V+V

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 2

B

J2-42

TRANS MOD RLYSOLENOID/

TCC ENABLE

J2-45

VENT SOLENOIDCANISTER

RELAYSOLENOID

AIR

J2-4J2-34

SOLENOIDCANISTER PURGE

RELAYAIR PUMP

J2-36

TRANS OUTPUT SPEED SENSOR

HI

J2-21

TRANS INPUT SPEED SENSOR

HI

J2-22

LOW

J2-23

LOW

J2-20 J1-79

SKIP SHIFT3-2 SHIFT

PCM

Speed SnrSPEED SNR LOW

EcmECM TOSS LOW

EcmECM TOSS LOW

C6M GT280 SLD

2221.

0.8BLU LT

Wednesday, April 19, 2006

1:18:57 pm

$IVEDWORK/h83020a__001s ch em at ic s he et1

h83020a3

0012

Beta Agustin Velazquez GMT5600Engine Controls (L18)GMT560 X08

Speed SnrSPEED SNR HI

Uh - Eng1

10A

POWER DIST

.428GRN DK/WHT

0.8

TcmTRANSMISSION

2222.

0.8GRN DK

Valve Asm-Cnstr Purge

A

B

EcmECM TOSS HI

EcmECM TOSS HI

SPEED SNR HISpeed Snr

2221.

0.8

BLU LT

2222

Speed SnrSPEED SNR HI

GRN DK0.8

.

ECM TOSS HIEcm

GRN DK0.8

.2222

0.8BLU LT

2221.

B

LO HI

A

BLU LT0.8

.2221

Speed SnrSPEED SNR LOW

EcmECM TOSS LOW

B

SPEED_HI_22221

SPEED_LOW_22222

6F GT280 SLDC

SPEED_LOW

SPEED_LOW_2

SPEED_HI_2

SPEED_HI_2

SPEED_HI

SPEED_LOW SPEED_HI

SPEED_HI2221SPEED_LOW2222

SPEED_LOW_2

REP_TOSS_HI_1

2 39 P UR GE _P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-83

Engine Controls (L18) 8.1L V8 GMPT VORTEC® - Gas (continued)

15A

POWER DISTUh - Eng2Uh - Eng3

POWER DIST

15A

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020a

FREQ IN FREQ IN+V

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

A A

A

50

B

INJ

19

H

A

F

0.8

50

19

10M MP150 SLD

.

0.8

0.8

Panel Set: 3

AA

pe058332

.

C

0.8

TXL

6M6

.

.

INJ

INJ

pe058332

19

B

PNK

Fuel Inj #8

50

INJ

P NK /B LK B LK /W HT

TXL

TXL50

D

10M MP150 SLD

0.8

INJ

50

.

19

INJ

6M6

539

B

A

19

50

SPLICESPLICE

TXL

X0036

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12045808

19

6M6

Fuel Inj #7

TXLPNK

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X0036

B

17124607

Fuel Inj #4

19

17200041

5019

191.0

INJ

Fuel Inj #2

19

50

PNK

0.8

.

RED/BLK

X0036

Fuel Inj #5

0.8

B

X0036

pe058332

0.8BLK

.

19

pe058332

TXL

INJ

6M6

TXL

17124607

B

TXL 0.8 TXL

6M6

K

878

Rail Asm - Inkn Fuel

002

BLU LT/BLK

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50

.

INJ

X0036

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1746

0.8 50

X0036

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Fuel Inj #3

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.

TXL

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50

pe058332

339

19

339

A

B

.

INJ

339

INJ

E

X0036

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002

12045808

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TXL

INJ

BLU DK/WHT

PNK

A

B

PNK

1745

6M6

50 50

GRN LT/BLK

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PNK.

INJ

50

0.8

X0036

0.8

6M6

0.8

12065425

539

B

846

TXL

INJ

.

6M6

845

TXL

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PNK

INJ

1.0

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INJ

TXL

.

50

PNK

Fuel Inj #1

YEL/BLK

19 0.8

TXL

. 844877

19

INJ

50

PNK

pe058332

19

pe058332

J

INJ50

.

539 339

19

50

Fuel Inj #6

TXL

G

339

0.5BLK/WHT

845.

J

.

0.8PNK

A

539

MONBAT VOLTAGE

J2-65

DIAGNOSTICEHC

J2-56 J1-9

DIFF FLATKNOCK 1

J1-77

FINJECTOR

J1-76

BINJECTOR

J1-53

VREF RTN FKNOCK 1RTN FLAT

J1-49 J1-50

RTN FLATKNOCK 2

CINJECTOR

J1-43

GINJECTOR

J1-44

DINJECTOR

J1-4

AINJECTOR

J1-36

EINJECTOR

J1-37

INJECTOR

J1-3

H

KNOCK 2DIFF FLAT

J1-10

PCM

C

1745.

0.5GRN LT/BLK

G10F MP150 SLD

B

PNK0.8

.339

Wednesday, April 19, 2006

1:18:57 pm

$IVEDWORK/h83020a__001s chem at ic s he et 1

h83020a3

0013

Beta Agustin Velazquez GMT5600Engine Controls (L18)GMT560 X08

E

0.5YEL/BLK

846.

K

F

10F MP150 SLD

.1746PNK/BLK0.5

HD

0.5BLK

1744. .878BLU DK/WHT

0.5

.877RED/BLK0.5

.844BLU LT/BLK

0.5

INJ1_P INJ2_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-84

Engine Controls (L18) 8.1L V8 GMPT VORTEC® - Gas (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020a

+V +V+V

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 4

Family 2has Fuse

TRANSMISSIONTcm

BRN/WHT379.

0.5

STARTING & CHARGINGGenerator Assembly

F-TERM MONITORALTERNATOR

J2-75J2-5

DELIVEREDTORQUE

REDUCED ENGINE POWERCRUISE INHIBIT/

J2-37

ENGAGEDCRUISE

J2-13 J2-15

L-TERM MONITORALTERNATOR

J1-62

BRAKE SWITCHEXTENDED TRAVEL

SWITCHBRAKESWITCH

CLUTCH

J1-35

TCC

J1-33

TORQUE

J1-13

REQUESTED

PCM

B630M GTMXD SLD

BRAKES

Brake Sw

30F GTMXDA11

TRANSMISSIONTcm

0.8ORN/BLK

463.

B

Man Cltch Sw Top Of Trvl

A

10A

Ip1 - BrakePOWER DIST

0.5

.420PPL

B630F GTMXD SLD

.464TAN/BLK0.8

.23GRA

0.8BRN/WHT0.5

.379

4

Beta Agust in Velazquez GMT5600Engine Controls (L18)GMT560 X08

Wednesday, April 19, 2006

1:18:57 pm

$IVEDWORK/h83020a__001sche matic sheet1

h83020a3

001

0.5

.379BRN/WHT

STARTING & CHARGINGGenerator Assembly

30M GTMXDA11

25 L_TERM_L18

CR_CLU_P441

TCC_PCMREQ_TORQ

DEL_TORQ F_TERM_MON

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-85

Engine Controls (L18) 8.1L V8 GMPT VORTEC® - Gas (continued)

POWER DIST IP CLUSTERINTERIOR LIGHTING

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

+V+V +V

Panel Set: 5

has FuseFamily 2

.534GRN DK

A2

0.8

0Engine Controls (L18)GMT560 X08

Wednesday, April 19, 2006

1:18:57 pm

$IVEDWORK/h83020a__001schematic sheet1

h83020a3

0015

Beta Agustin Velazquez GMT560

0.5

.2013RED

GND DIST

0.8

.1827YEL/BLK

Gnd Zone #7A

OUTPUT4 kPPM

J2-50J2-46

INDICATOR LPMALFUNCTION

J2-49

4 kPPM128 kPPM/

OUTPUT

J2-44

HI IDLELAMP

J2-38

LAMPALTERNATOR

J2-35

LEVEL OUTPUTFUEL/OIL

A/C RECIRC

J2-33

CHECK GAUGES LP/ FAN2/

J2-10

TACHOUTPUTENGINE SHUTDOWN

FAN1/

J1-42

LIFT DIVECHG OIL LP

RELAYSTARTER

J1-39J1-38

SWITCHHI IDLE

J1-31

PCM

YEL/BLK1827.

0.8

C2

RED2013.

0.8

GRN DK534.

0.5

B6

IP CLUSTERTachometer (2 Ppr)

24M GTMXD SLDC3

.750BLK

0.5GRN DK

534.

0.5

POWER DISTIp1 - Brake

10A

0.5

.817GRN DK/WHT

30M GTMXD SLDC2

C2

Starter RlySTARTING AND CHARGINGIP CLUSTER

0.5

Mal Ind Lamp

WHT121.

Speedometer (4KPPM)IP CLUSTER

D1

0.5

.419BRN/WHT

Headlamp PowerINTERIOR LIGHTING

B6

BRN/WHT419.

0.5

.447YEL

0.8

B130M GTMXD SLD

WHT0.5

.121

D1 30F GTMXD SLDC2

GRN DK/WHT817.

0.5

LED

LAMP

E F

GND

High Idle Switch

A

GNDGND

B

SW

C

D

24F GTMXD SLDC3

A2

30F GTMXD SLDB1

30F GTMXDA3

30M GTMXDA3

Sec PpmBODY BUILDERGND DIST

Gnd Zone #7A

PCM_START

441 HIS_LED_P

BB_PPM

MAL_IND_LP

HIS_LP2509

HIS_G750 HIS_ILL_G750

TACH

PRIM_PPM

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-86

Engine Controls (L18) 8.1L V8 GMPT VORTEC® - Gas (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020a

+V

+V +V+V +V

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

has Fuse

has FuseFamily 2

Family 2

Panel Set: 6

MOTOR 1 LOFORCE

J2-8

FORCE

A

J2-63

CRANK

J2-59

REQUEST

J2-6

MOTOR 1 HITEMP SNSR

TRANS

J2-51

etc.SHIFT B SOL

J2-47

SHIFT A

J2-48

SOLENOID

J2-2

SOLENOIDTCC CONTROL

IGN 0

J1-75

WAKEUPSECONDARY

J1-57

BATTERY

J1-17

MANIFOLDPRESSURE SWITCH

C

J1-18

IGN 1

J1-19

RUN/CRANK

BATTERYPRIMARY

J1-20

B

PCM

TcmLCT TRANS STARTING & CHARGING

Clutch Sw

schematic sheet1

h83020a3

0016

Beta Agustin Velazquez GMT5600Engine Controls (L18)GMT560 X08

Wednesday, April 19, 2006

1:18:57 pm

$IVEDWORK/h83020a__001

POWER DISTIp1 - Pcm-I

15A

0.8WHT

2467.

POWER DISTUh - PcmB

10A

POWER DIST

10A

Uh - PcmBPOWER DIST

Uh - PcmB

10A 10A

Ip1 - TransPOWER DIST

0.8PPL

806.

CRANK_P L18_CRANK1433

440 PCM_BAT1_P439 PCM_IGN1_P

PCM_IGN0_P1020 PCM_BAT2_P440UNMAN_TORQ

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-87

Engine Controls (L18) 8.1L V8 GMPT VORTEC® - Gas (continued)

HIHI HIHI

(BANK 1 SENSOR 1)PRE-OXYGEN SENSOR HEATED

LOW

PRE-OXYGEN SENSOR HEATED(BANK 2 SENSOR 1)

LOW

POST-OXYGEN SENSOR HEATED(BANK 1 SENSOR 2)

LOWLOW

POST-OXYGEN SENSOR HEATED(BANK 2 SENSOR 2)

PCM

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020a

A/DA/DA/D A/D

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 7

O2 HTR B LO

J2-74 J2-72

O2 HTR A LO

J1-65 J1-66J1-68 J1-69J1-25 J1-26

O2 HTR A GND

J1-27J1-28 J1-29J1-24

O2 HTR B GND

PPL/WHT1665.

0.8

.1664TAN

0.8

.1666PPL

0.8

0.8TAN

1667.

-

A

+

B

HI

D

LO

E

V

Oxy Sen Htd - Rh

GMT560 X08

Wednesday, April 19, 2006

1:18:57 pm

$IVEDWORK/h83020a__001s ch ema ti c s he et 1

h83020a3

0017

Beta Agustin Velazquez GMT5600Engine Controls (L18)

Gnd Zone #2aGND DIST

D

HI

E

LO

Oxy Sen Htd - Lh

V

A

-

B

+

GND DISTGnd Zone #2a

GRN LT3212.

O2a

15A

POWER DIST

0.8

.3113BLK/WHT0.8

O2a

15A

POWER DIST

739

251 O2_HTRB_G

O2_HTRA_P739

O2_HTRA_G251

O2_HTRB_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-88

Engine Controls (L18) 8.1L V8 GMPT VORTEC® - Gas (continued)

INPUTVATS

MAFINLET

AIR TEMPLOW OIL

LVL SWITCHRES KNOCK

ODD PCMEVENRES KNOCK

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020a

FREQ IN FREQ IN+V +V+V+V

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 8

0.5BLK

552.

ELEC THROT CNTLEtc Mdl

ELEC THROT CNTLEtc Mdl

J2-57

RTN GVREF

J2-30 J2-31J2-25J1-70

CLASS 2

J1-58 J1-59 J1-51

DATASERIAL

J1-14J1-15

ETC

PCM

J1-11

30F GTMXD SLDC8

0.8BRN

1174.

Sw Asm - Low Oil Lvl

A

B

492.

0.5YEL

3

0018

Beta Agust in Velazquez GMT5600Engine Controls (L18)GMT560 X08

Wednesday, April 19, 2006

1:18:57 pm

$IVEDWORK/h83020a__001sche matic sheet1

h83020a

30M GTMXD SLDC8

A

TEMP

B

GND

C

IGN

D

MAF

E

GND DISTGnd Zone #2A

MAF SenseLOWREF

GRN DK1049.

0.5

10A

POWER DISTUh - Eng1

Case GndGND DIST

GND DISTCase Gnd

.1049GRN DK0.5

.472TAN

0.5

496.

0.8BLU DK

1

CASE

Sensor - Knock Lh

1

CASE

Sensor - Knock Rh

Gnd Zone #3AGND DIST

Star ConnectorSERIAL DATA LINK

.1876BLU LT0.8

EVEN_KNK_G

ODD_KNK_G

ETC_B774

1061 ETC_A

239 L18_MAF_P

ENG_CL2

MAF_G351

LOW_OIL_G250

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-89

Engine Controls (L18) 8.1L V8 GMPT VORTEC® - Gas (continued)

+V FREQ OUT FREQ OUT FREQ OUT FREQ OUT+V

EST HSENSOR

FUEL

SECONDARY

LEVELFUEL

SENSORPRESSURE

EST F

EST RTN

TANK

SENSORLEVELFUEL

EST AEST C(SEC)FTPRESS

V5B

PCM 15A

Uh - Eng3POWER DIST

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020a

+V FREQ OUT FREQ OUT FREQ OUT FREQ OUT+V

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

1.0

19

TXL

19

F

19

.

IGN

0.8

14B

S

19

BLK

50

A

.

D

-

.

2123

0.8

250

19

539

TXLPNK

.

EST

IGN

SPARK

EST

0.8

IGN

G

IGN

BLK

Odd Ignition Coil & Driver

SPARK

7M MP150 SLD

50

TXL

0.8

2121

2700A

IGN

TXL

.

12047933

D

CASE

IGN

SPARK

50

EST

.

A

50

12F

19

GND

GRN DK

19

C

SPLICE

TXL

2129 2129

19

BLK

PLUG

BRN0.8

0.8

CASE

12162144GND

CASE

250

0.8

A

D

SPARK

19

BLK

.

.

6Y4

50

SPLICE

PNK

19TXL

50

250250

50

BLU LT

Spark Plug

50

250

0.8

IGN0.8

LOW

REDTXL

Spark Plug Case

TXL

C

B

TXL

IGN

12047938

50

2129

2129

19

H

50

539

IGN

50

.

EST

19

IGN

19

19

IGN

IGN

C

TXLBRN

.

50 50

Ign - Left Bank

CYL_5

S

2127

.

50

19

0.8

0.8

PLUG

B

0.8

19

19TXL

B

A

.

IGN

CYL_7

19

BRN

SPLICE

IGN

IGN

GND

IGN

50

0.80.8

IGN

003

50

.

539

TXL

CYL_3

IGN

7M MP150 SLD

PNK

2125

Gnd Dist

TXL

EST

S

IGN

GND

CASE

8A-

X0008

.

PNK

C

PPL

PLUG

TXL

19

.

Panel Set: 9

BLK

539

AA

50

ESTPLUGLOW

A.

0.8IGN

CASE2

EST

0

A

.

CYL_1

IGN

1.0

IGN

EST

BRN

Page

A

B

0.8

15320908

IGN E

B

0.8

IGN

539

C

TXL

TXL

LOW

S

.

6 Y 4 0 02 1A12158637

TXL

LOW

.

12047933

IGN

TXL

D

TXL

50

50PNK

2129BRN

Gnd Zone #2BGND DIST

0.5BLU LT

2123.

RELAYPUMPFUEL

J2-9 J2-69J2-73J2-64 J2-68

EST RTNBANK 1 (ODD)

J2-60J2-54J2-3 J2-26J2-27

FUEL

SECRELAYPUMP

J1-5

V5BRETURN

H

J1-23

FUEL HAND & STORSec Fuel Pump Rly

.465GRN DK/WHT

0.80.5

RED2127.

FUEL HAND & STORPri Fuel Sender

7F MP150 SLD E G

0.5TAN

1465.

0.5BLU DK

1936.

0.5

.2121PPL

F

Sec Fuel SenderFUEL HAND & STOR

B

BLK0.8

.470.1589PPL

0.8

HFUEL HAND & STORFuel Tank Senders

7F MP150 SLDA

9

Beta Agustin Velazquez GMT5600Engine Controls (L18)GMT560 X08

Wednesday, April 19, 2006

1:18:57 pm

$IVEDWORK/h83020a__001s ch em at ic s he et1

h83020a3

001

.2125GRN DK0.50.8

BRN2129.

Fuel Pump RlyFUEL HAND & STOR

C

FUEL_LVL1

FUEL_LVL2 FUEL_RLY2

FUEL_RTN

FUEL_RLY1

IGN_COIL1_P539

IGN_ODD_G250

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-90

Engine Controls (L18) 8.1L V8 GMPT VORTEC® - Gas (continued)

FREQ OUT IGN FREQ IN IGN FREQ INFREQ OUT FREQ OUT FREQ OUT

EST BEST D

EST RTN

CAM SUPEST EEST G

CAMSHAFTPOSITIONSENSOR SUP

CRANK CRANKPCM

SENSOR

POWER DISTUh - Eng2

15A

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020a

FREQ OUT IGN FREQ IN IGN FREQ INFREQ OUT FREQ OUT FREQ OUT

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

D

S

TXL

.

ENG

50

TXL

.

2130

BLU LT/WHT.

Page

CYL_2

TXL

IGN

0.8

50

TXL 0.80.8

IGN

19

8A-

CYL_4

50

PLUG

ENG

15320908

A

TXL

ENG

SPARK

S

50

X0008

TXL

339

A

50

S

339

GND

A

LOW

SPARK

TXL

BLK

.

PNK

TXL

CASE3

LOW

B

TXL

0.8

CASE

GND

PPL/WHT

.

0.8

50

BRN/WHT

TXL

.

EST

.

C

19

E

PLUG

0.8 19

19

PNK

6Y4

Even Ignition Coil & Driver

G12047933

2128

12162144

6Y 4

1.0

PLUG

50

50

B

IGN

EST

50

0.8

A

Panel Set: 10

19

Gnd Dist

2130

PNK

IGN

50

BLK

B

BRN/WHT0.8

19

19

TXL

IGN

.

IGN

0.8

0.8

TXL

GRN DK/WHT

14B

2130

19

IGN

0Spark Plug Case

0.8

EST

CASE

IGN

12047933

.

50

2700A

0.8

0.8

F

.

BRN/WHT

.

50

IGN

339

250

2130

B

C

CYL_8

19

19

C

IGN

50

IGN

H

EST

SPLICE

IGN

0.8

SPARK

2122

0.8

12047938A

50IGN

TXL

250

PLUG

BRN/WHT.

ENG

IGN

SPLICE

7M MP150 SLD

D

.

IGN

339

19

CYL_6

RED/WHT

GND

19

50

TXL

19

50

250

7M MP150 SLD

50

.

PNK

SPLICE

IGN

IGN

Ign - Right Bank

0021A

EST

19

LOW

.

003

A

0.8

B

EST

CASE

C

A

IGN

2130

C

IGN

IGN

12158637

.

EST

SPARK

TXL

LOW

Spark Plug

19

BLK

50

IGN

BRN/WHT

250

PNK

D

BLK BLK

2124

339

CASE

2126

50

S

19 0.8

19

.

-

.

.

EST

19

A

TXL

A

TXL

12F

D

1.0

250

TXL

19

GND

TXL

0.5RED

631.

7F MP150 SLDE

0.5BLU DK/WHT1869.

J2-66J2-67

EST RTNBANK 2

J2-61 J2-39J2-28J2-29 J1-73 J1-61

CAM RTN

J1-21

CRANK RTN

J1-2 J1-16

CRANKPOS 2

J1-12

B

7F MP150 SLDA

YEL/BLK0.5

.1868

A B

SENSORCAM

EFFECT

C

Cam Sensor

G

.2128PPL/WHT0.5

.633BRN/WHT0.5

10

Beta Agustin Velazquez GMT5600Engine Controls (L18)GMT560 X08

Wednesday, April 19, 2006

1:18:57 pm

$IVEDWORK/h83020a__001schematic sheet1

h83020a3

001

C

0.5RED/WHT

2122. .1867GRN LT0.5

F

Crank Sensor

A B

SENSORCRANK

EFFECT

C

0.8BRN/WHT

2130..2124GRN DK/WHT

0.5 0.5BLU LT/WHT

2126.

0.5PNK/BLK

632.

H

GROUND DISTGnd Zone #2B

339 IGN_COIL2_P

IGN_EVEN_G250

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-91

Engine Controls (L18) 8.1L V8 GMPT VORTEC® - Gas (continued)

+V+V +V+V +V+V+V+V

PRNDL C SWITCHAC PRESS CYC

RELAYCLUTCH

A/CREQ

NUET STARTA/C STATUS/ A/C PRESSURE

SENSOR SWITCH

TRANSFER CASE LO4WD HI-LO

A/CA/C SECONDARYHI PRESS SWITCH

MILREQUESTPRNDL B PRNDL PPRNDL A

PCM

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

+V

Panel Set: 11

ACTIVE TRANSFER CASE4WD ATC Mdl

0013

h83020asheet1schematic $IVEDWORK/h83020a__001

1:18:57 pm

Wednesday, April 19, 200608 XGMT560

Engine Controls (L18)0 GMT560Agustin VelazquezBeta

11

Nsbu - PTRANSMISSION

.762GRN DK/WHT

0.8

24M GTMXD SLDB5

RTN IVREF

J2-80J2-62 J2-55J2-43 J2-17 J2-18 J2-12J2-14 J2-16 J2-11J1-72

V5B SUPPLY 2A

J1-45J1-34J1-32

.1786ORN/BLK0.8 0.5

GRN DK/WHT459.

GRA/BLK0.5

.1694

24F GTMXD SLDB5

.603GRN DK0.5

HVACAc Enable Rly

Low Press SwHVAC

HVACHigh Press Sw

TRNSCAS1694

AC_ENABLE_A

PCM_HI_AC

IMS_NS PCM_LO_AC

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-92

Engine Controls (L18) 8.1L V8 GMPT VORTEC® - Gas (continued)

2 SPD AXLEPTOPTO ENG PTO COOLANTLOW

PTO

L18Pcm - J1=Blue - J2=Green

PCM

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020a

+V +V

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 12

0.8

2522.YEL

.1478GRN LT

0.8

UPFITTER PROVPto Load

HI

J2-79

IAC BHI

J2-76

LO

J2-77

LO

J2-78

IAC AGND D

J2-40

J2-POWER

J2-19

SWITCH2 SPD AXLE

POWERGND C

J2-1

ENGAGEPTO

J1-78

PTO ENGKILL

J1-71

STATUSPTO

J1-52

POWERGND B

J1-40

J1-

SWITCHCOOLANT

J1-30

ENABLEPTO

J1-22

GND A

J1-1

POWER

PCM

B

YEL.2522

0.8

TRANSMISSIONBody Bldr Trans Conn

Low Coolant Sw

A

1478.

0.8GRN LT

30M GTMXD SLD

B3

0.8

.1478GRN LT

.2522

0.8

YEL

30F GTMXD SLDB9

30F GTMXD SLDB3

UPFITTER PROVPto Rly

.

0.5GRN LT

488

0.8BLK/WHT

451..451BLK/WHT

1478

6F GT280 SLDE

0.8

UPFITTER PROVPto Enable

.

0.5GRN LT

2 SPEED AXLE2Spd Axle Rly

Gnd Zone #3AGND DIST

Pto KillUPFITTER PROV

GRN LT1478.

0.8

11

0013

h83020asheet1schematic $IVEDWORK/h83020a__001

1:18:57 pm

Wednesday, April 19, 200608 XGMT560

Engine Controls (L18)0 GMT560Agustin VelazquezBeta

12M GT280 SLDL

YEL.2522

0.8

GND DISTGnd Zone #3A

12M GT280 SLDJ

Gnd Zone #3AGND DIST

TRANSMISSIONTcm

30M GTMXD SLDB9

.2562PPL

0.5

12F GT280 SLDJ

GND DIST

12F GT280 SLDL

Gnd Zone #3A

E6M GT280 SLD6F GT280 SLD

F

BLK/WHT

GND DISTGnd Zone #3A

0.8

.451

SA2522

6M GT280 SLDF

0.8

.494BLU LT

BLK/WHT451.

0.8

.

0.8GRA/BLK

1467

2522 TCM_PTOSTAT

L18_1_G351

L18_4_G351

L18_3_G351

L18_2_G351

BB_TRANS

351 LOW_COOL_G

PTO_ENG_DIS

PTO_FEDBACK

2SP_AXLEPTO_ENABLE

PTO_ENGAGE

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-93

Engine Controls (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020d

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

VREFVREFVREF

C2 SAMPLE E35 ECM

-Page

IC469 LOW_OIL_G

GND DISTEngine Earth C

12

12129946REFLOW

Sumitomo:

50

REF

Sensor - Map09373269

.

E

0.5

F

40

7

0.5

.IC71

50

1

Sensor - Oil Pressure

6189-0099

N.O.HELDCLOSED AT

TXLBRN

5V

C

7

GRA

GOLD PLATED TERMINALS

B

J236

BLK

50

Conn 40M GT 150-280 Sld

3

OIL

13551537

J24

LOW

7

188

NORMAL FLUIDLEVEL

0.5

ISUZU

50

7

Sen Asm-IMT

REF

A2

50

7

.

TXL

TXL

ISUZU

LT GRN/WHT0.5

50

ISUZU

TXL

IC188

FNA

TXLGRN LT

7

ISUZU

TXL

.

YEL/BLK

50

FNA

TXL

IC69

A1

IC68

ISUZU

7

ISUZU

FURUKAWA

FW-C-6F-B

5000A

2

BOOST

1

FW-C-6M-B

004

15449029

4000A

REF

LOW

.IC47BLK

50

0.5

E ISUZU

TXLFURUKAWA

2

38F GT MXD

YEL

500.5

178392-6

TXL

ISUZU

TEMP

50

Oil Level Sw

UPC

0.5

12F

.

7

ISUZU

5V

.ORG/BLK

50

0.5

12F

97224993UPC

GRA

REF

0.5ISUZU

CAN_HI(Page 8)

FB CISUZU

50

LOW

HB03

3

500.5

.IC189

FUEL TEMP SENSOR REQUIRES

.

.

FNA

12129140

.

IC94.TXL

REF

B

A

ISUZU

TXL

0.5

15326386Sen Asm-Cool Temp

ISUZU

.

7

PPL/YEL

50

IC43

0.57

UPC97600434

TXL

18

IC93ISUZU

Sensor Asm-Fuel Temp

.

0.5

Conn 38M GT 150-280 Sld29

Conn 38M GT 150-280 Sld13551536

194 8 20

0.5 7

97328879

J1

13551536

27

PRESSURE

2

ISUZU

IMT SENS TERMINALS

Conn 40M GT 150-280 Sld28

IC66

ISUZUIC41

ARE AU PLATED

B

BLU LT

AU

TXLTAN/WHT

13551537

AU AU

AU

A

AU

AU

AUAU

TEMP

IC44BRN

REF

A

IC92

Panel Set: 1

YAZAKI

7282-7020-10

ENG

50

YEL0.5

ISUZU

TXL

7

8A-14A

7

97381182

EARTH C

LOW

TXL

AU

7

7

AU

AU

J1

1

TEMP

A

IC57

YEL.410

0.5

0013

h83020dsheet1schematic $IVEDWORK/h83020d__001

1:28:10 pm

Wednesday, April 19, 200608 XGMT560

Engine Controls (LMM)0 GMT560Agustin VelazquezMule

1

.331TAN/WHT0.5 0.5

BLU LT6118..1578

0.5YEL

20

.432

GRN LT0.5GRA

2705.

0.5

184

.6120YEL/BLK0.5

19Conn 40F GT 150-280 Sld

18 36Conn 40F GT 150-280 Sld

40Conn 40F GT 150-280 Sld

28

.6062BRN0.5

.2755BLK

0.5

F TEMPSENSRTN

J2-47 J2-48

FUEL TEMP

LVL LO

J1-9

ENG OIL

J1-65

COOLANTTEMP

J1-68

INT MANTEMP

J1-6

MAPSENSRTN

IMTSENSRTN

J1-53J1-44

ENG OILPRESS

J1-47

SENSRTNECT

EOP

J1-23

SENSRTN

J1-19

MAP

MAPV5BA

J1-12

EOPV5BA

J1-15

ECM

.1174BRN

0.5

84

469.

0.5ORN/BLK0.5

GRA2704.

278Conn 40F GT 150-280 Sld

2761.

0.5BLK

29

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-94

Engine Controls (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020d

VREF

VBATT

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

TXL

Sumitomo

REF

Sen Asm-Cool Temp #2

0.5

50 50

0.5

PWR 6195-0021

Conn 40M GT 150-280 Sld

15449029

13551537

12F

J2

4000A

ISUZU

TXL

EGR DC

ICYEL

0.5

.

TXL

50

ISUZU

MOTOR LO

.

IC140

GRA.

.

0.5ISUZU

AC

0.5

50ISUZU

TXL

A

0.5ISUZU

98006484

IC143

7

IC142GRA BRN/WHT

IC141GRN LT/BLK

MOTOR HIEGR

TXL

IC

BLK

50TXL

. IC144

EGR EGR DC

B

Valve Asm-EGR

.

EGR VALVE DC MOTOR

ORN/BLK0.5

EGR GND

50ISUZU

TXL

B

.

Panel Set: 2

TEMP15326386

50ISUZU

51 3231

F D

3028 29

LOW

.2753BLK

0.5

B5 24M GTMXD SLD

BRN/WHT.5763

0.5

.2221BLU LT

0.8

28

2032GRN LT0.5

.596GRA

0.5

.

1.0

.5746GRN LT/BLK

24F GTMXD SLDB5

1

.5764ORN/BLK1.0

5 2930Conn 40F GT 150-280 Sld

32

.2702GRA

0.5

4WD ATC MdlACTIVE TRANSFER CASE

31

TRANSMISSIONTcm

sheet1

h83020d3

0012

Mule Agust in Velazquez GMT5600Engine Controls (LMM)GMT560 X08

Wednesday, April 19, 2006

1:28:10 pm

$IVEDWORK/h83020d__001schematic

J2-58

TOSS LO

J2-46

A (-)DC MOTOR

J2-45

TOSS HI/ REP TOSS

EGRDC MOTOR

EGR

J2-33

A (+)EGR

SENSRTN

J1-86

FR AXLE SW

J1-82

POS SENS

J1-67

EGR

SENSRTN

J1-64

ECT 2

4WD LO

J1-57

ECT 2

J1-45

EGRV5BA

J1-37

ECM

.

0.5GRA/BLK

1694

1694 TRNSCAS_1

REP_TOSS_HI_1

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-95

Engine Controls (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

2

Fuel Inj 1 Fuel Inj 7

2 2

Fuel Inj 8

2 2

Fuel Inj 2 Fuel Inj 5 Fuel Inj 3Fuel Inj 4

AUAU AU2 AU AU

Fuel Inj 6

2 2AU AUAU

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020d

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

.

TXL

ENG

2.0

PPL

1

Fuel Inj 1

ENG

BLU LT/BLK 50

2.0

50

1

50

BLU DK/WHT

IC17

Fuel Inj 7

Panel Set: 3

ENG

ENG

TXL

50

IC16TAN/WHT

7

ENG

Conn 38M GT 150-280 Sld

.

2.0

50

1

2.0 19

50

ENGIC15

2.0

19

TXLTAN

Fuel Inj 8

1

.IC21

1

ENG

1

7

ENG.

Fuel Inj 2

2.0 TXL

BOSCH

1

Fuel Inj 5

2.0

ORG/BLK

89002368

1 928 403 874

19

50

19

.IC60ORG

.

19

TXL

50

Fuel Inj 3Fuel Inj 4

Conn 40M GT 150-280 Sld13551537

6 J1

13551536

ENG

TXL

J2

IC11

19

AU

19

IC13

AU

352

ORN

7 50

IC12

YEL/BLK2.0IC10

IC13

TXL

50

AUIC19.

1IC22

ENGIC11

ENG

ENG

2.0

ENG

TXL

TXL

.

AU AU

62

IC20ENG.

PNK/BLK

GRN LT/BLK2.0

Conn 38M GT 150-280 Sld

ENGIC60

TXL

.

.

19

35

IC13

TXL

34

19

2.0

2.0

TXL2.0

IC12

50

.

Fuel Inj 6

TXL2.0

13551537

.

PNK

19

TXL

J2

TXL

J134 737

50

PNK

YEL

IC12

2.050

Conn 40M GT 150-280 Sld3

. ENG

IC11

7

.

50

AU AU AU.

2.0

19

IC10

50

13551536

19 PPL

TXL

50

YEL

BLK1744.

1.0

.

1.0

846YEL/BLKBLU LT/BLK

844.

1.0

6 3Conn 40F GT 150-280 Sld

352

.

1.0

1746PNK/BLK

Mule Agustin Velazquez GMT5600Engine Controls (LMM)GMT560 X08

Wednesday, April 19, 2006

1:28:10 pm

$IVEDWORK/h83020d__001s ch em ati c s he et 1

h83020d3

0013

1.0PNK

5425..5422YEL

1.0

2Conn 40F GT 150-280 Sld

634

RED/BLK1.0

.8775421.

1.0ORN

353Conn 40F GT 150-280 Sld

7347Conn 40F GT 150-280 Sld

PPL1.0

.5423

1.0BLK/WHT

845.

J1-75

INJ # 2

J1-73

BANK 2 HSINJ # 1

J1-74

BANK 3 HS

J1-49 J1-50

INJ # 5

J1-51

INJ # 4

J1-3

BANK 4 HS

J1-25

INJ # 6

J1-26 J1-27

INJ # 3INJ # 7 INJ #8

J1-2

ECMBANK 1 HS

J1-1

1.0

878.BLU DK/WHT

.1745GRN LT/BLK

1.0

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-96

Engine Controls (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020d

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

VBATTVREF VREF

VNT VNT

0.5ISUZU

B

ISUZU

ORN/BLKIC161

50

Van Position Sensor97603320

BLU DK

ISUZU

12191366

J130

TXL

.

Conn 38M GT 150-280 Sld13551536

131 532

0.5

VNT SOLENOID VALVE

50 0.5

VNT

C

A

EXH TEMP SENSORS REQUIRE GOLD PLATED TERMINALS

Vane Position Sensor

TXL

97387888

B

0.5

.IC170

50

Van Position Sensor REQUIRES GOLD PLATED TERMINALS

.IC162

0.5

IC160

EX-03QRY200040AMP

ISUZU

TXL

YEL

50ISUZU

TAN

AUAU

AU

AU

AU AUAU

AU

AU

AU

AU AU

Panel Set: 4

AU

AU

AU

AU

AUAU

TXL

WHT.IC171

50

.

SENSRTN

A

AU

V5B

TXL

AU AU30

1.0BLU DK

5930

B

.

0.8BLU LT

.5377

48.

0.5GRA

.5277BLU DK0.8

Ip2 - Brake Iso

10A

Man Cltch Sw Top Of Trvl

A

B

POWER DIST

Asm Conn 8F Sealed GT 280A

32 5

POWER DISTIp1 - Brake

10A

0.5ORG/BLK5929.

A1130M GTMXD

0Engine Controls (LMM)GMT560 X08

Wednesday, April 19, 2006

1:28:10 pm

$IVEDWORK/h83020d__001s ch em ati c s he et1

h83020d3

0014

Mule Agustin Velazquez GMT560

B730M GTMXD SLD

0.5

BLU LT1320.

0.5

.1320BLU LT

BRAKES

Brake Sw

1.0WHT

5931.

30M GTMXD SLB6

TransmissionTRANSMISSION

0.5

.48GRA

A1130F GTMXD

PPL420.

30F GTMXD SLD B7

0.5

TAN5928.

0.5

0.5

.48GRA

B

6782.

0.8BRN

Asm Conn 8M Sealed GT 280AC

0.8

.6783DRN/WHT

0.8BLU DK

5277. .6782BRN

0.8

A

B

Sensor Exhaust Temp (Pre DPF)

A

B

Sensor Exhaust Temp #2 (Post DPF)

C

0.8DRN/WHT

6783.

5377.BLU LT0.8

J2-39

NEUT SWPARK

J2-40

BRAKESW #2

BRAKESW #1

J2-22

EXH GAS

J1-93

TEMP 2

EGT #2

J1-94

SENSRTN

J1-96

VAR NOZSOL LO

J1-83

BRAKE APPLYSW

EGTSENSRTN

J1-70

TEMP 1

J1-69

EXH GAS

VNT POS

J1-63

SENSRTNSOL HI

VAR NOZ

J1-48

CRUISE DISABLE

J1-32

CLUTCH SWVAR NOZ

J1-20

TURBO POS

VNT POSV5BG3

J1-13

ECM

D

D

3130F GTMXD SLB6

0.8

ORN/BLK1786.

Conn 40F GT 150-280 Sld1

0.5YEL

5947.

IMS_NS

BRK_NO_P

TCC_PCM

CR_CLU_P441

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-97

Engine Controls (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020d

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

VBSWVBSW

VBATT

VBSW

50TXLTXL

ISUZU

Intake Throttle Actuator

ISUZU

AVX

.

SENSRTN

C

YELIC156

97364406

7283-8850-30

INTAKE THROTTLE POSITION

0.5ISUZU

0.5

YAZAKI

BRN

50

TXL

.IC153GRN LT

500.5

Conn 40M GT 150-280 Sld

0.75 AVX

.

ISUZU50

. IC151

AU

AU

AU

10

TV

E

0.75

AU

TV

1112

ISUZU

13551537

J2

.IC150

Panel Set: 5

F

V5B

MOTOR LO

GRA

50

A B

TV

IC154TAN

13

TV

14

AUAU AU AU

AU

MOTOR HI

AU

AU

TV

IP CLUSTER

30F GTMXD SLD B1

Speedometer (4KPPM)

0.8BLU DK

6053.

FAsm Conn 8F Sealed GT 280

E30M GTMXD SLDC2

YEL/BLK0.8

.6055

817GRN DK/WHT

0.5

.

24F GTMXD SLD

B6

0.8YEL/BLK

1827.

0.5

.419BRN/WHT

0.5GRN DK/WHT817.

0.5

.121WHT

IP CLUSTERTachometer (2 Ppr)

.2701GRA

0.5

WHT121.

0.5

Mule Agustin Velazquez GMT5600Engine Controls (LMM)GMT560 X08

Wednesday, April 19, 2006

1:28:10 pm

$IVEDWORK/h83020d__001s ch ema tic s he et 1

h83020d3

0015

485.

0.5GRN DK

Starter RlySTARTING & CHARGING

BN0.8

.6136

BLK0.5

.2752

D1

0.8BRN

6136.

30M GTMXD SLD B1

.6053

BLU DK0.8

IP CLUSTERMal Ind Lamp

0.8.447YEL

FG

0.8YEL/BLK

6055.

.582BRN

0.5

.581YEL

0.5

G

PDF

AU

3

5 VREF

AU

SUMITOMO_6189-0099

Sensor - Diff Press Filter

1

REFLO

AU 2

EAsm Conn 8M Sealed GT 280

D1

J2-7

DC MOTOR (-)INT THROT

SECONDARY128KPPM

J2-54

TACH

J2-55

4KPPMPRIMARY

J2-42 J2-32

STARTENABLE RLY

(SES)INDICATOR LPMALFUNCTION

J2-30

DC MOTOR (+)INT THROT

J2-20

TVA

J1-91

ENABLE RLY

J1-71

START

J1-43

DELTA PRESSFILTER

DPF

SENRTN

J1-35

IN AIR THR POS 2SENSRTN

J1-36

IN AIR THR POS

V5B

J1-17

V5BG2

J1-14

DPF

ECM

14 13Conn 40F GT 150-280 Sld

101112

Sec PpmBODY BUILDER

30F GTMXD SLDC2

.1827YEL/BLK

24M GTMXD SLDB6

0.8

BRN/WHT419.

0.5

PRIM_PPM

BB_PPM

MAL_IND_LP

TACH

PCM_START

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-98

Engine Controls (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020d

VBATT

VBATT

VBATT

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 6

POWER DISTIp1 - Trans

10A

POWER DISTIgnB_Rly

30A

POWER DISTUh - PcmB

10A

PPL806.

0.8

30A

IgnB_RlyPOWER DIST

STARTING & CHARGING2nd Generator

0.8GRA/BLK

2219.

15A

Ip1 - Pcm-IPOWER DIST

30A

IgnB_RlyPOWER DIST

.23GRA

0.8

1st GeneratorSTARTING & CHARGING

OUTPUTALT L

J2-8 J2-56

ACCESSORY

J2-5

VBATT 3

ALT F

J2-38

TERMVBATT 2

J2-3

TERM #1

J2-24

TERM #2ALT L

IGN 1

RUN/CRANK

J2-21

ALT L

J2-23 J2-19

POWERTRAINRELAY

BATTERY

J2-1

VBATTA & B

J1-76

ACT PWR

J1-77

BATT FEEDCRANKREQUEST

J1-7

ECM

30A

IgnB_RlyPOWER DIST

Mule Agustin Velazquez GMT5600Engine Controls (LMM)GMT560 X08

Wednesday, April 19, 2006

1:28:10 pm

$IVEDWORK/h83020d__001s ch em at ic s he et1

h83020d3

0016

POWER DISTIp1 - Start

10 A

Ign B RlyPOWER DIST

STARTING & CHARGING1st Generator

VBATT_D

CRANK_P

339

ACTPWR_B440VBATT_C339

339 VBATT_B

VBATT_A339

IGNB_P25 L_TERM_LMM

L2_TERM_LMM2524

F_TERM_MON

439 LMM_IGN1_P

1020 LMM_IGN0_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-99

Engine Controls (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

VREF

PPS1

PPS1SENSRTN

PPS1V5BB

PPS2SENSRTN

ON/OFFCRUISE CRUISE

SET/COASTPPS2V5B

PPS2

ECMCRUISE

RES/ACC

CRUISE

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020d

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 7

A2

.

.BRN

1271

0.5

0.5

1271BRN WHT/BLK

1164

0.5

.

A8

24F GTMXD SLDA6A3

TAN1274

0.5

.

A8

PPL.

0.5

1272

TAN.

0.5

1274

A3

Mule Agust in Velazquez GMT5600Engine Controls (LMM)GMT560 X08

Wednesday, April 19, 2006

1:28:10 pm

$IVEDWORK/h83020d__001schematic sheet1

h83020d3

001

Cruise Cntl SwCRUISE CNTL

7

A2

0.5

1272PPL.

CRUISE CNTLCruise Cntl Sw

1161

0.5

.BLU DK

B1

B2

.BLU LT

1162

0.5

CRUISE CNTLCruise Cntl Sw

B1

PPS 1RTN

PPS 1

E

5V REFPPS 1

F

Pedal Position SensorRTNPPS 2

A

PPS 2

B C

PPS 25V REF

D

24M GTMXD SLDA6

J2-49J2-29 J2-15 J1-78J1-61 J1-38J1-34 J1-21J1-10

0.5

1164WHT/BLK

.

B2

1162

0.5

.BLU LTBLU DK

.

0.5

1161

RES_ACCEL_D87

397 ON_OFF_D

84 SET_COAST_D

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-100

Engine Controls (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

VREFVREFVBATT

SENSRTNWIF

WIFSW

RAIL PRESS

LO IATSENSRTN

LVLLO CLNT

SENSRTNMAF

VREF

MAF

SENSRTN

MAF

RAIL PRESS

SENSORWIF

HI

V5B

MAF

ECM

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020d

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

-

GND DIST

Page 8A-14A

IZ07

Engine Earth C12

RPCV_SH

ISUZU

Conn 40M GT 150-280 Sld37

Rail Press Control Valve

500.5 7TXL

IC32

13551537

J233

AA 928 000 453

97384667UPC FN A

BOSCH

IC31

B

PPL/WHT

HI

LO

YEL

ISUZU

TXL

ALL MAF SENSOR 5 TERMINALS ARE GOLD PLATED

500.5 7

Panel Set: 8

AU

AU

.

0.8GRN LT

1478

Conn 40F GT 150-280 Sld

33

0.5YEL

2834.

E

.472TAN

0.5

37

BLK0.5

Low Coolant Sw

A

B

.476

3

001

BLK/WHT451.

0.8

451BLK/WHT

8

Mule Agustin Velazquez GMT5600Engine Controls (LMM)GMT560 X08

Wednesday, April 19, 2006

1:28:10 pm

$IVEDWORK/h83020d__001s che ma ti c s he et 1

h83020d

0.8

.

GRN LT0.8

.1478

.1478GRN LT0.5

B9

B3 30M GTMXD SLD

0.5YEL

492.

30F GTMXD SLDB3

F

B9

6M GT280 SLD

J2-41 J1-85 J1-72 J1-62

LVL

J1-58 J1-55

MAF

J1-5

IAT

J1-42 J1-33

SENSOR

J1-22 J1-24 J1-16J1-18

MAF

WifHEATED FUEL PPL/WHT

0.5

6F GT280 SLDF

.2530

0.5BLK

552.

TEMP

AU 1

MAF

AU 2

GND

AU 3

IGN

AU 4

REFLOW

AU 5

MAF Sense

GND DISTGnd Zone #3A

E

POWER DISTUh - Eng1

10A

239 LMM_MAF_P

LMM_WIF508

LOW_COOL_G351

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-101

Engine Controls (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

VBATT

SEN2

FUELLEVEL

SEN1

FUELFUEL LVLSENSRTN

1 & 2LEVEL

WAIT TO START (GP LMP)

RELAYLIFT PUMPF TRANSFER/

IGN0

CAM 4XSENSRTN

FF DIF PRESS

VREF

CRANK 58X

VREF

FF DIF PRESSSENSRTN

VREF

CAM 4X

CRANK 58X

V5BG1

CAM 4XV5B

ECM

CRANK 58X

SENSRTN

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020d

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

12

CAM_SHIZ06

CRANK 58X

14A

CRANK_SHIZ05

GND DISTGND DISTEngine Earth B

12-Engine Earth B

-Page

3

Page 8A-

Panel Set: 9

TXL

ISUZU

TXL

8A-14A

7

2526

50ISUZU

0.5

FNA

50ISUZU

TXL

Cam Sensor

.IC27BLU DK/WHT

Crank Sensor

ISUZU

7TXL

97365037

0.5

UPC

6248-5317

3 2

0.5

97365038

1 2 1

CAM 4X

WHT/BLK.

50

1715

UPC FNA

16

IC24BLU DK

.

70.5

.

IC26

24

.

IC25

IC23

J1

13551536

.

PPL/WHT

BRN

50

50ISUZU

TXL0.5 7

6248-5317

IC28

Conn 38M GT 150-280 Sld

ISUZU

GRA/BLK

500.5 7

7

TXL

.1936BLU DK0.5

Fuel Pump RlyFUEL HAND & STOR

0.5

.507BLU DK

0.5

.6259BLU DK

.6266BRN

0.5

.6272GRA/BLK0.5

Sec Fuel SenderFUEL HAND & STOR

507.

0.5BLU DK

6271WHT/BLK0.5

.

0.5BLK

470.

1615Conn 40F GT 150-280 Sld

17

30M GTMXD SLDC3

465.

0.8GRN DK/WHT .6265

BLU DK/WHT0.5

.6270PPL/WHT0.5

TELL TALETtm - Wait Intake Heater

FUEL HAND & STORPri Fuel Sender

FUEL HAND & STORFuel Tank Senders

26

SEN2

J2-50

SEN1

J2-36J2-34 J2-16

RELAY

J2-12 J1-88J1-87

FF DIF PRESS C 58

J1-79J1-54 J1-56

CAM 4X

J1-40J1-41 J1-11

25

$IVEDWORK/h83020d__001sch ematic sheet1

h83020d3

0019

Mule Agust in Velazquez GMT5600Engine Controls (LMM)GMT560 X08

Wednesday, April 19, 2006

1:28:10 pm

24

30F GTMXD SLDC3

0.8PPL

1589.INTAKE_HTR

FUEL_RTN

FUEL_LVL2

FUEL_RLY1

FUEL_LVL1

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-102

Engine Controls (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

VBATTCLASS 2SERIAL 1

HI TERMINGM LAN

EXH BRK SW

GM LANLO TERMIN

RELAY/LMPEXH BRAKE

VBATT SERIAL 2CLASS 2

SWCLTCH STRT REVERSS GR

SW

ECM

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020d

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 10

0.5BLU LT

6106.

10

Mule Agustin Velazquez GMT5600Engine Controls (LMM)GMT560 X08

Wednesday, April 19, 2006

1:28:10 pm

$IVEDWORK/h83020d__001s ch em at ic s he et1

h83020d3

001

D5 30F GTMXD SLDC8 30M GTMXD SLD

0.5

.1049GRN DK

Splice

0.5.2081GRN LT

ENGINE CTRL

0.5BLU DK

6105.

0.8

.2081GRN LT

30M GTMXD SLDD5

30F GTMXD SLD

C8

Star ConnectorSERIAL DATA LINK

1049.

0.5GRN DK

SpliceENGINE CTRL

Tell TaleEXHAUST BRAKE

J2-9 J2-57 J2-53J2-44J2-10J2-11 J1-89 J1-81

EXH BRAKE/RSTRExhaust Brake Sw

GMLAN_1

GMLAN_2

ENG_CL2

EXH_BRK

EXH_TEL1962

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-103

Engine Controls (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

VBATT VBATT PRESSAC

V5B

CLUTCHA/C

A/C PRESS

CYCLING SW

SENSRTNEV FAN AC PRESS

V5B

EV FAN GND AC PRESSTRANS

REVERSE SW

REQUESTA/C

A/C HI SIDE

PRESS SW

FEEDBACKEV FAN

FANEV ECM

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020d

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 11Wednesday, April 19, 2006

1:28:10 pm

$IVEDWORK/h83020d__001sch ematic sheet1

h83020d3

00111

Mule Agust in Velazquez GMT5600Engine Controls (LMM)GMT560 X08

HVACAc Enable Rly

Reverse SwEXTERIOR LIGHTING

0.5GRN DK/WHT459.

Low Press SwHVAC

603GRN DK0.5

.

FAN CONTROLEV Fan

EV FanFAN CONTROL

.2365

EV FanFAN CONTROL

GRA0.8

.

0.8BN/WH

6141

J2-35J2-31

CYCLING SW

J2-25J2-26 J2-27J2-28 J2-13J1-84

REVERSE SW

J1-80J1-52

PRESS SW

J1-4 J1-28

2366.

0.8WHT/BLK

.2364BLU DK0.8

24.

0.8GRN LT

FAN CONTROLEV Fan

HVAC

High Press Sw

0.8GRN DK/WHT2523.

EV_FAN_REF

EV_FAN_RTN

EV_FAN_SIGNAL

EV_FAN

PCM_HI_AC2

AC_ENABLE_A2

PCM_LO_AC2

BACK_UP

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-104

Engine Controls (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

VBATTVREFVBATTPOWER GNDS

321

LED CNTRLHI IDLE SW

RLYENGAGE

PTO

PRESSFR DIFPTO

FEEDBACKHI IDLE SW

ENABLEPTO

FR PRESSV5BA

FR PRESSSENSRTN

ENG DISABLEPTO

ECME35 C2 Sample

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020d

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

IZ08

GND DISTEngine Earth C

ISUZU

RAIL_SH

IC40

Page 8A-

ISUZU

TXL50

YEL.

14A

7

12-

TXL

FUEL Rail Pressure SENSORS TERMINALS ARE GOLD PLATED

7TXL 7

IC46.

0.550

ORN/BLK0.50.5

.

5VBOSCH:

RAIL

AU

AU AU

Conn 38M GT 150-280 Sld

3

REF

UPC

J1

1

13551536

23

IC37

FNA

97371617

2

2221

TAN

50

Panel Set: 12

ISUZU

Sensor - Rail Pressure

1 928 403 968

001LOWREF

.534GRN DK0.5

.YEL

0.8

2522

TRANSMISSIONTcm

0.8

2522.YEL

23Conn 40F GT 150-280 Sld

21

.2917TAN

0.5

10A

Ip1 - BrakePOWER DIST

UPFITTER PROVPto Enable

PPL0.5

.2562

GND DISTGnd Zone #3A

UPFITTER PROVPto Load

RED2013.

0.5

2013RED

0.8

.

C2

Gnd Zone #7AGND DIST

24M GTMXD SLD C3

0.8BLU LT

494.

0.5GRN LT

488.

0.5ORG/BLK

2919.

YEL.2522

0.8

Mule Agustin Velazquez GMT5600Engine Controls (LMM)GMT560 X08

Wednesday, April 19, 2006

1:28:10 pm

$IVEDWORK/h83020d__001sc hematic sheet1

h83020d3

00112

0.5

.2918YEL

C2

GND DISTGnd Zone #7A

C3

TRANSMISSIONBody Bldr Trans Conn

Pto Rly

SA2522

24F GTMXD SLD

UPFITTER PROV

0.8YEL

UPFITTER PROVPto Kill

.2522

E

LAMP GND

F

High Idle Switch

GND

AB

GND

C

SW

LED

D

30M GTMXD A2

.534GRN DK0.5

22

30F GTMXD A2

J2-6J2-4J2-17J2-18 J2-2

PRESS

J1-92J1-8

FEEDBACK

J1-60 J1-59J1-39 J1-30J1-31

ENG DISABLE

750.

0.5BLK

Headlamp PowerINTERIOR LIGHTING

GND DISTGnd Zone #3A

A3

GND DISTGnd Zone #3A

A3

GRN DK534.

0.8

2522 TCM_PTOSTAT

PTO_ENABLEPTO_ENG_DIS

3 51 L MM _2 _G

LMM_3_G351

LMM_4_G351

PTO_ENGAGE

PTO_FEDBACK

BB_TRANS

750 HIS_G

HIS_LED_P441

2509 HIS_LP

750 HIS_ILL_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-105

Engine Controls (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

FL

StarterSTARTING AND CHARGING

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

50

50

HB13

AVX

12020227

HB15

AESSX-HT AESSX-HT19

AVX

50

.

G P # 4

A

50

HB02

50

WHT/GRN LTHB16

192.0 50

WHT/YEL

IGN1

2.0

PNK

HB14.

19

WAKE UP

2.0 5019

ISUZU

RED/WHT

G P # 1

J1

.

50

WHT/BLU DK2.0 AESSX-HT

.

glow_plug

50

HB11

3340

BLU LT

0.85ISUZU

HB12.

G P # 7

AESSX-HT

G P # 5

FNA

13551536

2.0

A

192.0 50

WHT/GRN

Conn 38M GT 150-280 Sld383937

0.5

HB17RED/BLU

AESSX-HT

50

RED/GRN LT

.

G P # 2

.

001

36

AESSX

ISUZU

.HB05

A

HB18

A

AVX

A

G P # 3

ISUZU

AVX

.

2.0

0.5

IN HI

.

TAN/BLK

50

J2-43

IN LOLAN

A

.HB20

J2-45

OUT LO

J2-44

LAN

J2-46

1

TEMP

0.5

OUT HI

GP # 4

J2-02

GP # 1

DIGITAL

GP # 3

J2-01

GP # 8

J2-04

HEART BEAT

2

ON_OFF

GP # 5

VOLT

GP # 6GP # 2

G P # 6

19

A

.

2.0

Glow Plug # 8

UPC

A

50

HB06

97375410

LAN

GLO_CNTL_GHB03

GND DISTEngine Earth C

-Page 8A-

1919

ON/OFF

6

J2-28

TEMP

.

3

CURRENT

4

AESSX-HT

GP # 7

BLU/YEL

LAN

ALL GPCM TERMINALS ARE SILVER PLATED

HTR SW M

J2-26

HEART BEAT

GP GND

J2-51

AVXTAN

12

0.5ISUZU

14A

5

RED/GRN

J2-03

J2-31

AESSX-HT

J2-52

HB01

RESPONSE

Htr Switching Module

DT-16-6S-K002

Panel Set: 13

J2-53J2-29 J2-30

VOLTRESPONSEDIGITAL IGN 0CURRENT

J2-27

39

.2RED

19

10A

Ip1 - TransPOWER DISTENGINE CTRL

Ecu

EcuENGINE CTRL

SN2

ENGINE CTRLEcu

33

EcuENGINE CTRL

374036

Ring Terminal

M6

A

B

POWER DISTUh - Eng 1

10A

38Conn 40F GT 150-280 Sld

J2-J1-

Gpcm

J1-A

BATT

00113

Mule Agustin Velazquez GMT5600Engine Controls (LMM)GMT560 X08

Wednesday, April 19, 2006

1:28:10 pm

$IVEDWORK/h83020d__001s ch em at ic s he et1

h83020d3

RED2.

8.0

19RED

2.

SX2

GLO_CNTL2

6106

239 HTR_RLY_D_P

LMM_IGN0_GP1020

6105 GMLAN_4

6106 GMLAN_3

6105 GMLAN_2

GMLAN_1

h83020d

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-106

Engine Controls (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

EcuENGINE CTRL

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 14

TcmTRANSMISSION

BLU LT0.8

.6106

DATA LINK CONNData Conn

D2

EcuENGINE CTRL

D430M GTMXD SLD

ENGINE CTRLEcu

Data ConnDATA LINK CONN

GMT5600Engine Controls (LMM)GMT560 X08

W ed ne sd ay , A pr il 1 9, 2 00 6 1 :2 8: 10 p m$IVEDWORK/h83020d__001s ch em at ic s he et1

h83020d3

00114

X Agustin Velazquez

ENGINE CTRLEcu

0.8BLU DK

6105.

0.8BLU DK

6105.

30F GTMXD SLDD4TRANSMISSION

Tcm

Ecu

.

0.8BLU LT

6106

.6105BLU DK0.8

0.8BLU LT

6106.

D2

GMLAN_3

GMLAN_9

GMLAN_4

GMLAN_10

GMLAN_3

GMLAN_4

GMLAN_5

GMLAN_6

h83020d

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-107

Engine Controls (LF8) 7.8L L6 Isuzu 6H - Diesel

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

INJECTOR CCYL # 3 CYL # 2

INJECTOR ECYL # 1

J2-58 J2-6 J2-43

INJECTOR D

J2-44

INJ POWER 1

J2-34

SCV INJ POWER 2CYL # 4

INJECTOR B

J2-45

SCVLOW CYL # 6

INJECTOR FCYL # 5

SCV

J2-33 J2-56 J2-57

INJECTOR A

J2-5J2-20 J2-21

SCVLOWHIGH HIGH

X00366M6 X0036

B

Fuel Injector A

6M6

Fuel Injector CCyl # 4

BCyl # 3

Fu el I nj ect or E Fu el I nj ect or BCyl # 5

6M6

Cyl # 6Fuel Injector F

Cyl # 1B

Panel Set: 1

6M6

SCVX0036 X0036

Fuel Injector D

6M6

A

6M6

B BB

X0036X0036

Cyl # 2

Beta Agustin Velazquez GMT5600Engine Controls (LF8)

Wednesday, May 24, 2006GMT560 X07i

7:55:18 am

$IVEDWORK/h83020b__001s ch em ati c s he et1

h83020b13

0011

ECU

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-108

Engine Controls (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

BATTERIES

FL

Uh Dist Center (B+)

GLO_RLY1120

GLOW_COIL

2

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

16

FNA

A

FNA

50

Glow Plug #6glow_plug 001

.

UPC

503

503

19

UPC UPC

FUSELINK

A

FNA

glow_plugGlow Plug #1

50

ORN

FNA

16

503 503

001

.ORN

16

503

ISUZU5.0

.ORN

50ISUZU

0.8 FUSELINKORN

50

glow_plug 001

A

503

160.8ISUZU ISUZU

Glow Plug #4

U PC FN A

A

ORN

50

ORN.

glow_plugGlow Plug #5

UPC

A

ISUZU0.8 FUSELINK

TBDTBD

Glow Plug #2glow_plug 001

FUSELINK

503

0.8FUSELINK

ISUZU

.

A

FNA

0.8

001UPC

ISUZU

16

001

.

ISUZU

SPLICE

16

TXL

Glow Plug #3

50

glow_plug

50

ORN.

Panel Set: 2

FUSELINK

1

0.8

001Wednesday, May 24, 20062

Beta Agustin Velazquez GMT5600Engine Controls (LF8)GMT560 X07i

7:55:18 am

$IVEDWORK/h83020b__001s chem at ic s he et 1

h83020b13

J1-59

PLUGGLOW

ECU

ORN.

5.0

503

85

86

87

Glow Plug Relay

30

0.8YEL.505

Yazaki 1 Way Conn1

(Page 3)

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-109

Engine Controls (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

MAF

AVNT

(Page 12)

(Page 10)

BODY BUILDERPOWER DIST

POWER DIST

25A

Uh - Pcm-B

BB_PPM

440 ECU_RLY_1

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

86

87

30

85

12193604

ISUZU

19

TBD

0.5

.

0.5

1120BLK/WHT

1120

.

.

ISUZU

(Page 12)

BLK/WHT

TXL

ISUZU

Panel Set: 3

SPLICE

1120

TXL

750

7BLK/WHT

ISUZU

TXL

TBD3

50

500.8

1.0

UPFITTER PROVPto Kill Sw

.BLK/WHT

1120

0.8

1827YEL/BLK

.121WHT.

0.8

.WHT

121

0.5

0.8YEL.2522

.BLK/WHT1120

1.0

J1-94

PTO KILL PTO

J1-95

FEEDBACK4KPPM4KPPM

J1-82 J1-83

SPEED

J1-75

PTO ENGAGE+BPOWER

J1-73

+B

J1-50

POWER

J1-52

M-RELPOWER

M-REL

J1-53

POWER

J1-49

+BPOWER

J1-28

2X TACH SVS-L

J1-25

ECU

PPL

2562.

1.0

ClusterIP CLUSTER

30M GTMXD SLD C2

ClusterIP CLUSTER

SB1120

IP CLUSTERCluster

TcmLCT TRANSMISSION

0.5

817GRN DK/WHT

.

3

Beta Agust in Velazquez GMT5600Engine Controls (LF8)GMT560 X07i

7:55:18 am

$IVEDWORK/h83020b__001sche matic sheet1

h83020b13

001Wednesday, May 24, 2006

Sumitomo 6 Way Conn3

.2522

0.8YEL

Sec PpmBODY BUILDER

DPD ThrECU RELAY

SA1121

Pto Load Engage SwUPFITTER PROV

SA2522

1120

3.0

0.8

2522.YEL

.BLK/WHT

1.0

1121BLU LT.

.1120BLK/WHT0.8

40M GTMXD SLDB8

BRN/WHT.

0.5

419

1120

0.8

.BLK/WHT

0.8

2522.YEL

Body Bldr Trans ConnLCT TRANSMISSION

Pto RlyUPFITTER PROV

25A

Uh - Pcm-B

30F GTMXD SLDB1

30M GTMXD SLDB1D1

30F GTMXD SLDD1

30M GTMXD SLD

BLK/WHT.

.YEL/BLK

1827

0.8

1.0

1120

.494

BLU LT0.8

1.0

1120BLK/WHT. .BLU LT1121

1.0

40F GTMXD SLDB8

1.0

1121BLU LT

.

D9

E7 E9

ECU MAINTAIN

Uh - ECU Rly

D7

.

BRN/WHT

419

0.8

.

GRN DK/WHT

817

0.8

30F GTMXD SLDC2

MAL_IND_LP

(Page 2)

GLOW_COIL

DPD_THR

440 ECU_RLY_2

BB_TRANSPTO_FEDBACK

TCM_PTOSTAT2522

TACH

PTO_ENG_DIS494

PRIM_PPM

PTO_ENGAGE_1

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-110

Engine Controls (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

Tt W it I t k HtTELL TALE

I 1 B kPOWER DIST ECU RELAY

DPD Th

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020b

J1939

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 4

0.5

BRN/WHT379.

0.8

379BRN/WHT

.

0.8

.459GRN DK/WHT

0.8

WHT/PPL953.

PLUG

WAIT

J1-79

GLOW

J1-70

DPD-LCLUTCHSW

J1-64 J1-60

DPDSOL

J1-45 J1-42

DPDREG-SW4 WHEEL

J1-44

SWITCHDRIVE

AC REQHI LOW

J1-18

DPDLIM-SW

J1-15

GND

J1-16J1-17

ECU

HVACA/C Status

Ttm - Wait Intake Htr

.BLU DK

507

0.5

4

Beta Agustin Velazquez GMT5600Engine Controls (LF8)GMT560

Wednesday, May 24, 2006X07i

7:55:18 am

$IVEDWORK/h83020b__001s ch ema tic s he et 1

h83020b13

001

J1939J1939

Ip1 - Brake

10A

.

BLU DK

507

0.8

B6

0.5

.379BRN/WHT

30M GTMXD SLDA5

DPD Exhaust Throttle Vlv

A

B

B6

J1939J1939

A530F GTMXD SLD

B

Man Cltch Sw Top Of Trvl

A

A11

30M GTMXD

30F GTMXDA11

DPD Thr

DPD_THR1120

2362 ISU_ECU_J-

ISU_ECU_J+2361

AC_ENABLE_B

441 CR_CLU_P INTAKE_HTR

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-111

Engine Controls (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

CRANK FUEL SWWATER IN

TERMLECU SIGNAL

GNDBATTFIELDTERM

ECU SIGNALGND

POWERGND 4

POWERGND 2IGN 0IGN 1

POWERGND 3

POWERGND 1

ECU

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

TBDTBD

TBD

1

Panel Set: 5

TBD

STARTING & CHARGING

Generator Asm

J1939

J1939

0.8

23.GRA

13

BATT

2

HIGH

TRIG

3

5

IGN0

7

GND

8

LOW

J1939

DaMU

GND DISTGnd Zone #4A

GND DISTGnd Zone #3A

15A

Ip1 - Pcm-IPOWER DIST

GND DIST

Gnd Zone #3A

960.

2

1

0.5PU

GND DIST

Gnd Zone #3A

J1-96 J1-72J1-61J1-5J1-51 J1-41J1-4J1-3J1-22J1-23 J1-26 J1-27J1-2

00113

h83020bsheet1schematic $IVEDWORK/h83020b__001

7:55:18 am

07i XGMT560

Engine Controls (LF8)0 GMT560Agustin VelazquezBeta

5 Wednesday, May 24, 2006

Gnd Zone #4AGND DIST

J1939J1939

15A

Ip1 - Pcm 1POWER DIST

Generator AsmSTARTING & CHARGING

Gnd Zone #3AGND DIST

WifHEATED FUEL

Gnd Zone #3AGND DIST

0.8

.806PPL

START & CHARGEStart Sw / Clutch Sw

LF8: 25A

Uh - Pcm BPOWER DIST

POWER DISTIp1 - Start

10A

POWER DISTIp1 - Trans

10A

Gnd Zone #3AGND DIST

POWER DIST

25A

Uh - Pcm-B

L_TERM_MON25LF8_WIF508

1451 TRIG_SW_G

DAMU_G1451

DAMU_J+2361

2362 DAMU_J- DAMU_P440

DAMU_IGN1439

351 ECU_PWR3_G

ECU_IGN1_P4391020 ECU_IGN0_P

351 ECU_PWR1_G

351 ECU_SNSR1_G

ECU_PWR2_G351 ECU_PWR4_G351

440 ECU_BATT_P

ECU_SNSR2_G351

ECU_CRANK1433

N_START_P

F_TERM_MON

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-112

Engine Controls (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

GND 3

J1 9J1 84

EV-FAN

SENSOR GNDSPEED

GND 2

J1 8

SENSOR VCC

EV-FAN

J1 81

SPEED

J1 7

GND 1

J1 6

CLUTCHPWM OUT

EV-FAN

J1 54

5V REF 1 5V REF 2

J1 55 J1 56

5V REF 3

J1 57

DPD-VCC

J1 36

POS SIG 1

J1 31 J1 32

POS SIG 2 POS SIG 3

J1 33

DPDP-SIG

EV-FAN

SIGNALSPEED

J1 21J1 13

DPDP-GND

ECU

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

ELECTRONICS

glow_plug_cntlUPCFNA

AU

AU

5

TBD

TBD

J1-12

Panel Set: 6

J1-6

4

AU AU AU

Case Gnd

1

LOW

J1-11

Glow Plug Control

J2-1

005PLUGONJ1939

AU

HIGH IGN1

J1-1

TBD

J1-8 J1-10

AU

AU

AU

J1-7J1-2

ISUZU

J1-5

J1-9

09 447401J1-

GLOW

J1-4J1-3

J1939J1939

GRA.

0.5

1273

0.8GRA

705.

10A

Ip1 - Pcm 1POWER DIST

D2 D640M GTMXD SLD

D7

D4

D8

D8

J1-9J1-84 J1-8J1-81 J1-7J1-6 J1-54 J1-55 J1-56J1-57 J1-36 J1-31 J1-32 J1-33J1-21J1-13

4

D3 D6

6

Beta Agustin Velazquez GMT5600Engine Controls (LF8)GMT560 X07i

7:55:18 am

$IVEDWORK/h83020b__001s ch em ati c s he et1

h83020b13

001Wednesday, May 24, 2006

PPL0.5

1272.

A8

.950PU

0.8

H

PPS 25V REFPPS 2

J

RTN

K

PPS 1

B

CONNECTION

C

NO

D

PPS 15V REF

PPS 1

E

RTNPPS 3

FG

PPS 2RTN

Pedal Position Sensor

A

PPS 35V REFPPS 3

1

J1939J1939

1275.YEL/BLK0.5

.

0.5

1162BLU LT

B3

.PPL

1272

0.8

.GRN DK

1163

0.8

40F GTMXD SLDD7

D5

E

E

0.8

0.8PU

950.

.705GRA

.407BLK

0.8

F

.BLU DK

1161

0.8

0.5

1274.TAN

F

.TAN

1274

0.8

1161

0.5

.BLU DK

WHT/BLK.

0.8

1164

D4

0.8

1271BRN.

0.8

1275YEL/BLK

.

0.5

1163.GRN DK

Asm Conn 8M Sealed GT 280G

0.5

1271BRN.

GAsm Conn 8F Sealed GT 280

D2

0.8

1273GRA.

A8

BLK407.

DPF Press SnrLOWREF

12

SIGNALREF5V

3

0.8

Sumitomo 6 Way Conn5

WHT/BLK.

0.5

1164

D5

0.8

1162BLU LT

.

B3 D3

2362 HTR_RLY_D_P24392361 GLOW_J+GLOW_J-

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-113

Engine Controls (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

J1 93

ENABLEPTO

AC CLUTCH RLY

J1 80 J1 78

FAST IDLE LP SWITCH

J1 68

FAST IDLEON/OFF

J1 46

CRUISE

J1 47

RESUME/ ACCEL

SET/

J1 48

COAST

J1 37

FUEL LVL1

J1 38

FUEL LVL2

EXHAUST

THCSFTEMP SIG

THDOC

EXHAUST

J1 29

TEMP SIG

J1 30

COMMON

GNDCASE

J1 1

GNDSENSOR

J1 11

ECU

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

AU

AU

AU

AU

AU

Panel Set: 7

AU

AU

AU

AU

AU

FUEL HAND & STORSec Fuel Sender

Gnd Zone #7AGND DIST

0.8BLU LT

5377.

CRUISE CNTLCruise Cntl Sw

0.5

.GRN DK

534

Cruise Cntl SwCRUISE CNTL

Cruise Cntl SwCRUISE CNTL

0.8BLK

470.

FUEL HAND & STORFuel Senders

488

0.8

.GRN LT

1589

0.8

.PPL

10A

Ip1 - BrakePOWER DIST

30F GTMXDA3

J1-93J1-80 J1-78 J1-68J1-46 J1-47 J1-48J1-37 J1-38J1-29 J1-30 J1-1J1-11

A330M GTMXD

TEMP

2

Exhaust Temp Snr (DOC)

1

0.8

.5277BLU DK0.8

.5377BLU LT

INTERIOR LIGHTINGHeadlamp Power

.GRN DK

534

0.8

.

0.5

C5

2013RED

2

TEMP Exhaust Temp Snr (CSF)

1

0.8

2013RED.

40F GTMXD SLDC4C5

0.8

470BLK.

SA470

0.8BLK

470.

0.8BLU DK

5277.

C4

Pri Fuel SenderFUEL HAND & STOR

40M GTMXD SLD

.750BLK

0.5

E F

GND High Idle Switch

GND

A

GND

B

SW

C

D

LED

LAMP

C

A2

0.8BLK

470.

UPFITTER PROVPto Enable Sw

C

0.5GRN DK

534.

Asm Conn 8M Sealed GT 280A

A2

GND DISTGnd Zone #7A

B

BAsm Conn 8F Sealed GT 280

A

470.

.470BLK

0.8

0.8BLK

SA470

7

Beta Agustin Velazquez GMT5600Engine Controls (LF8)GMT560 X07i

7:55:18 am

$IVEDWORK/h83020b__001s ch ema tic s he et 1

h83020b13

001Wednesday, May 24, 2006

0.8

1936BLU DK

.

397

SET_COAST_B84

87 RES_ACCEL_B

ON_OFF_B

FUEL_LVL2

FUEL_LVL1

FUEL_RTN

PTO_ENABLE

750 HIS_ILL_G 750 HIS_G

441 HIS_LED_P

HIS_LP2509

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-114

Engine Controls (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

J1 87

REV SW

J1 76

STARTERENABLE

J1 77

RES REQEXH BRK/

LAMPBRAKE

J1 63

TCC

J1 66

LOWCOOLANT

EXHAUSTBRAKE SW

J1 67

BRAKE

J1 62

2SP AXLE

J1 43

VSS + (MANUAL)

J1 39

REP TOSS HI (AUTO)

J1 40

VSS -

J1 20

CL 2A

J1 12

SHIELDVSS

ECU

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 8

2sp Axle Sw2SP AXLE

-MWF &MWF

B7

.451BLK/WHT0.8

GRN LT.

0.8

24

EXH BRAKE/RSTRExhaust Brake Sw

12M GT280 SLDL

.2222GRN DK0.8

0.8

1049GRN DK

.PPL.

B9

0.8

420

0.8

.1478GRN LT

POWER DIST

10A

Ip2 - Brake Iso

C

6M GT280 SLDB

D5

GRN LT2081

0.5

.

.1962BLK/WHT0.8

30F GTMXD SLD

GND DISTGnd Zone #3A

BLK/WHT451.

0.8

B9

J1-87J1-76J1-77J1-63 J1-66J1-67J1-62 J1-43 J1-39 J1-40J1-20 J1-12

.

C

GRN LT1478

0.8

.2221BLU LT0.8C8

2081

0.8

6F GT280 SLDB

.GRN LT

GRN LT1478.

0.8

30M GTMXD SLDD5

Reverse RelayMD TRANSMISSION

BLU LT2221

0.8

.

C10

12F GT280 SLD L

BLU LT1320.

0.5

Reverse SwEXTERIOR LIGHTING

XGMT560

Engine Controls (LF8)0 GMT560Agustin VelazquezBeta

8 Wednesday, May 24, 2006001

13

h83020bsheet1schematic $IVEDWORK/h83020b__001

7:55:18 am

07i

2222.

0.8GRN DK

C10

0.8

.GRA/BLK

1467.BLU LT

1320

0.8

Exhaust BRK TTEXH BRAKE/RSTR

LCT TRANSMISSIONTcm

B7

Trans Speed Snsr (Man)

A

HI

TOSS

LO

B

Low Coolant SwA

B

Star ConnSERIAL DATA LINK

YEL.

0.8

447

30F GTMXD SLDB3

BRAKES

30M GTMXD SLD B3

Brake Switch

0.8BLU LT

2221.

C8

J

J

START & CHARGINGStarter Relay

GRN DK.

0.5

1049EXH_TEL

BACK_UP_MD24

420 TCC_ECU

BACK_UP

REP_TOSS_HI_1

2SP_AXLE

ENG_CL2

EXH_BRK

ECU_START

BRK_NO_P

LOW_COOL_G351

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-115

Engine Controls (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

J2-29

INTAKE POS SNR VCC

J2-1

INTAKE DC MOT1

J2-16

INTAKE POS SNR GND

IDM2

INTAKE DC MOT2

INT

INTAKE POS SIG

J2-50

INT-VCC IDM1INT-GND

J2-2

SET SPEED

J1-89

B SW

J1-90

SET SPEEDSET SW

J1-91

REMOTE PTORESUME SW

REMOTE PTO

J1-92

CLUTCH SWIGNORE BRK

J1-86

DISABLE SW

J1-88

CAB CONTROLA SW ACCEL VCC

PTO

J1-58 J1-34

ACCEL SIGPTO

ACCEL GND

J1-10

PTO

ECU

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020b

J2 29 J2 1J2 16J2 50 J2 2

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

.

ISUZU

XXX

X

XXXXXX. XXX

ISUZU

TV

.

MOTOR HI

XXX

ISUZU

X

.XXX

V5B

XXX.

SENSRTNTV

ISUZU

X

XXXXXX

INTAKE THROTTLE

TV TVTV

MOTOR LO

10M GT150 SLD

ISUZU

Panel Set: 9

XXX

XREMOTE PTO

12052189

X

PPL.

0.8

7608

0.8

.BLU LT

7605

J1 89 J1 90J1 91 J1 92 J1 86J1 88 J1 58 J1 34 J1 10

0.8PPL

7612. .BRN

7611

0.8 0.8

7610BLU DK

. .YEL/BLK

7607

0.8

FJ GH CE BD

0.8

7637GRN DK

.

A

.GRA

7606

0.8

10F GT150 SLD

9

Beta Agustin Velazquez GMT5600Engine Controls (LF8)GMT560 X07i

Wednesday, May 24, 2006

7:55:18 am

$IVEDWORK/h83020b__001s ch ema tic s he et 1

h83020b13

001

.WHT/BLK

7609

0.8

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-116

Engine Controls (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

COMMON AIR

J2-41

TEMP 1

J2-42

EGR GAS TEMP

OIL

VCC

J2-48

OIL

J2-27

SIGNALSIGNAL

MAF

J2-35

TEMPGND

EGR GAS TEMP

SENSOR INLET GND

PRESSURE

OIL

MAF

GND

PRESSURE

J2-28J2-37J2-4

FUEL

SENSOR OUTLET

PRESSURE

TEMP

INTAKE

J2-14J2-15

COOLANT

J2-36

IMT SENSOR

J1-19

ECU

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020b

J2-41 J2-42 J2-48J2-27J2-35 J2-28J2-37J2-4 J2-14J2-15J2-36

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

1

6

XXX

IMT Sensor

XXX

XXX

ISUZU

SHIELD

ISUZU

XXX

ISUZU

ISUZU

OIL

Maf & Iat

ISUZU

LOW

XXX

XXX

2

ISUZUTBDTBD

Fuel Temp Snsr 1

XXX

.

ISUZU

XXX

Panel Set: 10

Cool Temp Snsr

XXXXXX

XXX

XXX

.

5V

ISUZU

IGN

XXX

REF

ISUZU

ISUZU

XXX

(Page 3)

XXX

.

XXX

θ

θ

ISUZU

.

2

1

2

MAF

XXX XXX

XXX

MAF

1

XXX

XXX

XXX

.XXX

EGR Temp #1

.

EGR Temp #2

.

XXX

GND

XXX

XXX

ISUZU

ISUZU

.

ISUZU

ISUZU

XXX

REF

XXX

ISUZU

ISUZU

REF LO

XXXPRESSURE

Oil Pressure Sensor

.

.

ISUZU

XXX

XXX

1120

.

ISUZU

TEMP

XXX

XXX

ISUZU

.

.

ISUZU

.

6118.

Sumitomo 6 Way Conn6

0.8BLU LT

J1-19

10

Beta Agustin Velazquez GMT5600Engine Controls (LF8)GMT560 X07i

Wednesday, May 24, 2006

7:55:18 am

$IVEDWORK/h83020b__001s ch ema ti c s he et 1

h83020b13

001

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-117

Engine Controls (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

CAMANGLE

RAIL

VCC

LOW OIL

J2-23

SWITCH 2SIGNALPRESSURE

J2-51J2-26

SIGNAL ANGLEGND

J2-13

PRESSUREBOOST

VCCPRESSURE

LOW OIL

J2-22

SWITCH

J2-30

CRANK SIG

J2-24

PRESSURESIGNAL

J2-25

RAILCAM

J2-31

NECRANK VCC

NE-VCC

J2-46 J2-47

GNDPRESSURE

BOOSTPRESSURE

VCC (5V)

J2-12

RAIL

J2-18J2-19

CAM

ANGLE

GNDNE-GND

CRANK-GND LEVEL LEVEL

BOOST RAIL

PRESSURE

J2-32

ECU

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020b

J2 23J2 51J2 26J2 13 J2 22J2 30J2 24 J2 25 J2 31J2 46 J2 47J2 12 J2 18J2 19J2 32

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

XXX

UPC FNA

XXX

ISUZU

VRTN

SHIELD.

POS SIG

XXX

12565716

XXX

.

XXX

Panel Set: 11

ISUZU

CAM

.

Cam Sensor

A

ISUZU

.

UPC

GND DIST

ISUZU

.

VREF

XXX

eng_rpm_snsr

14B8A-

boost_prss_sen

ISUZU

UPC

Engine RPM Sensor

ISUZU

VREF

MAGNETIC

VRTN

XXX

XXX

XXX ISUZU

XXX

Boost Pressure Sensor

XXX

XXX

Oil Level Snsr

ISUZU

0

.

SHIELD.

FNA

XXX

XXXXXX

002

-

ISUZU

Page

.

Comm Rail Pressure Sensor

XXX

XXX

X00426Y3PICUP

ISUZU

XXX

OIL_LVL_G

XXX

.

SENSOR

XXX

001

ISUZU

ISUZU

XXX.

ISUZU

XXX

XXX

.

comm_rail_snsr

ISUZU

.

ISUZU

001

.

002POS SIG

.

CASE

.

FNA

SHIELD

Case Gnd

XXX.

ISUZU

UPC

XXX

XXX

B

XXX

FNA

XXXXXX

Beta Agustin Velazquez GMT5600Engine Controls (LF8)GMT560 X07i

Wednesday, May 24, 2006

7:55:18 am

$IVEDWORK/h83020b__001s chem at ic s he et 1

h83020b13

00111

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-118

Engine Controls (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

CLOG DETECT SW

FUEL FILTER

SIGNAL M OT OR U S IG NA L

POSITIONEGR - UEGR - W

SIGNAL VCC

POSITIONAVNT EGREGR

MOTOR W

EGR

MOTOR VGND

EGR - V

SIGNAL

EGR

GND

POSITON

DRIVE

POSITIONPOSITION

VCC

EGR

VNTPOS

Eng Cntl Unit (Diesel)

ECU

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

J2-54 J2-7J2-40 J2-49J2-3 J2-8J2-9 J2-39 J2-38J2-53 J2-52J2-11 J2-17

.

AVNT

ISUZU

ISUZU

XXX

Avnt

ISUZU

V

POSITION U

1120

. .XXX

ISUZU

XXX

VNTPOS

XXXXXX XXX.

XXXXXX.

W

.

SIGNAL

U

POSITION V

ECU MAINTAIN RLY

XXX

GNDVCC

XXX XXXXXX

ISUZU

XXXXXX

ISUZU ISUZU

XXX

GNDAVNT

XXXXXX

VCC

(Page 3)

XXX.

AVNT DRIVE

XXX

POSITION W

ISUZU

XXX

EGR Valve

XXX

ISUZU

Panel Set: 12

.

XXX

ISUZU

. . .

ISUZU

XXX

.

ISUZU

XXX

12

Beta Agustin Velazquez GMT5600Engine Controls (LF8)GMT560 X07i

Wednesday, May 24, 2006

7:55:18 am

$IVEDWORK/h83020b__001schematic sheet1

h83020b13

001

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-119

Engine Controls (LF6) 7.2L L6 Caterpillar ® C7 - Diesel

Air Intake TermA

B

BATTERIES

FL Uh Dist Center (B+)

C6

40M GTMXD SLDC6

TELL TALETtm - Wait Intake Heater

40F GTMXD SLD

1998 HTR_RLY2 HTR_P

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

IN_HTR_G

Injector #1

1539693

B

A

1539693

Injector #2

B

A

Injector #3

1539693

B

A

Air Intake Heater

A

CASE

CAT

Injector #4

GND DIST

0.8 TXL

.C830BU

19

TXL0.8

1539693

B

A

Heated Air Intake Rly

15336745

30

85

86

87

14C8A- - 0Page

Unknown

CAT

19OR

F793.

TXL0.8

SPLICE

CAT

19BUC830.

0.8 TXL

.C830BU

19

CAT

CAT

1950

XXXXXX.

TXL13.0

CAT3F GT150 SLD15326808

BA

1.0

CAT

16 TXL1.0

INJ1CAT

1

INJ12

CAT12

INJ

16GY

T858.

TXL

.T960BUPU

T957.

TXL1.0 1.0 TXL

.T858GY

16

CAT CAT

16YL

T958.

1.0 TXL

.T959BR

16

CAT CAT

16WH

T859.

TXL1.0 1.0 TXL

TXL1.0

16

CAT

1.0 TXL

.T858GY

16

INJ INJ

16WH

T859.

INJ

16

1.0 TXL

.T859WH

16

INJ

TXL1.0

CAT11

1.0

BUT960.

TXL1.01.0 TXL

.T959BR

16

INJINJ

16

YLT958.

1.0

INJ9

CAT

1.0 TXL

.T957PU

16

INJ

CAT

16

GYT858.

TXL1.0

INJ11

TXL

.T858GY

16

CAT

INJ10

CAT10

CAT

16

WHT859.

TXL

2

INJ3

CAT

9

1.0 TXL

.T859WH

16

CAT

SPLICE SPLICE

INJ2

CAT

.

TXL

3

INJ4CAT

4

AIH2CAT

2

0.8 TXL

.C830BU

19

AIH

CAT1AIH

1

AIH

19OR

F793

0.8

CAT

19OR

Panel Set: 1

F793.

TXL0.8

SPLICE

CAT

19ORF793

TXL0.8

IAHRELAY

RTN

J2-76 J2-5

IAHPWR

J2-116

INJECTOR 2

J2-118 J2-115

INJECTOR 3&4RTN

INJECTOR 1 INJECTOR 1&2RTN

J2-104

INJECTOR 3

J2-106

INJECTOR 4

J2-108

CAT ECU

M6

2M GT150 SLDA

BLU LT1998.

0.8

XGMT560

Engine Controls (LF6)0 GMT560Agustin VelazquezProd

1 Wednesday, April 19, 2006001

11

h83020csheet1schematic $IVEDWORK/h83020c__001

1:27:35 pm

07i

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-120

Engine Controls (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

DLCJ1587-

J1587-1922

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

1539693

Injector #5

B

A

Injector #6

1539693

B

A

CAT CAT

16

CAT

16GN

T961.

TXL1.0 1.0 TXL

.T860OR

16

.T860OR

WHT962.

TXL1.0

INJ

INJ

16OR

T860.

TXL1.0 1.0 TXL 16

INJ

INJ

16WH

T962.

TXL1.01.0 TXL

.T961GN

16

TXL1.0

INJINJ8

CAT8

CAT

16OR

T860.

7

CAT7

1.0 TXL

.T860OR

16

CAT

SPLICE

INJ5CAT

5

INJ6CAT

6

TXL

.U774

BU19

CAT

Hydraulic CGI Actuator

2407874

1

PWM+ PWM-

2

CAT

GYU775.

TXL0.80.8 19

CAT

CAT10

BU19

CAT

CAT8 SRH

8

11

11

CAT

GYU775.

TXL0.80.8 TXL

.

2407874

1 2

CAT

U774

VNT Actuator

2407874

1

PWM+ PWM-

2

CAT

BRC815.

TXL0.80.8 TXL

.C814GN

CAT

YLX981

SRH

10

4

4

CAT

BRC815.

TXL0.80.8 TXL

.GN

19

CAT

C814

Turbo Speed SNR

YLX981.

TXL0.80.8 TXL

.X980WH

19

CAT

CAT1 SRH

122

.

TXL0.80.8 TXL

.WH

19

CAT

X980

Panel Set: 2

RTNINJECTOR 5&6

J2-99 J2-51

AVNTACTUATORACTUATOR

CGI

J2-43

CGIRTN

J2-44

RTNAVNT

J2-32 J2-34

TURBOSPEED -SPEED +

TURBO

J2-24J2-105

INJECTOR 6

J2-107

INJECTOR 5

J1-8

+DATA LINK

J1587

J1-9

DIAGNOSTIC -

CAT ECU

1:27:35 pm

07i XGMT560

Engine Controls (LF6)0 GMT560Agustin VelazquezProd

2 Wednesday, April 19, 2006001

11

h83020csheet1schematic $IVEDWORK/h83020c__001

J1587+DLC

J1587+1921

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-121

Engine Controls (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

PTO TEMP SNR

TBDVRTNPOS SIG

TBDTBD

.

VREF

TBD

.Y745BUY742

LO

TOSS

Trans Speed Snsr (Man)

HI

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

J4AMP

3

.

TXL1.0CAT

19

PTI TEMP SRN

TBDVRTN

TBD

POS SIG

TBD

VREF

TBDY745

BU

BU19

CAT

.WH

19

CAT

Y748

1.0 TXL

.YL

19

CAT

Y741

1.0 TXL

.WH

19

CAT

Y748

1.0 TXL

1.0CAT

19

.

.WH

CAT

Y748

1.0 TXL

(Page 3)

PTI_SPLICE

Y745

1.0 TXL 19

CAT

(Page 3)

PTI_SPLICE

Y745

1.0 TXL

.Y745

TXL

.WH

19

GN

CAT1.0 TXL

3

3

2

2CAT

4 DPF

4

1

1

PTD PRES SRN

2304013VRTN

2

POS SIG

3

VREF

1

Y749GN

.

TXL

J7

AMP

6 4 1

WH19

CAT

Y748

1.0 TXL

.RD

19

CAT

Y746

1.0 TXL

1.0 TXL

.Y745BU

CAT

19

.YL

19

CAT

Y741

1.0

YL

CAT

19 1.0 TXL

CAT

Y748

1.0 TXL

.GN

CAT

1.0 TXL

Y742

19

19

SPLICE SPLICE

SPLICE

1 24 56

WH19

CAT

Y748

1.0 TXL

3

5 2

1.0 TXL

.U782

PK

CAT

19

1.0 TXL

.U782PK

CAT

19

1.0 TXL

.Y741

YL

CAT

19 1.0 TXL

.U781 .Y742

GN

CAT

19 1.0 TXL

.U782

PK

CAT

19

1.0 TXL

.Y746PK

CAT

19SPLICE

Panel Set: 3

Cluster

IP CLUSTER

BLU LT

0.8

.2221

0.8

BLU LT

2222.

0.8

GRN DK

.2222

2221.

GRN DK

0.86 14

IP CLUSTER

Cluster

SENSORFUEL TEMP

J2-93 J2-94

FUEL TEMPSENSOR

J2-82

SENSORFUEL TEMP

SENSORFUEL TEMP

J2-66J2-56

FUEL TEMPSENSOR4 KPPM

SPEED

J1-36

HIGH

2X TACHHIGH

J1-38

HIGHREP TOSS

J1-32

REP TOSSLOW

J1-33

MIL(SES)

J1-28

CAT ECU

BRN/WHT419.

0.80.8 0.8

.817GRN DK/WHT

GRN DK/WHT

WHT121.

.YEL/BLK

1827

0.8

0.8

.817

.BRN/WHT

419

0.5GRN DK/WHT

.

0.5

817

IP CLUSTERCluster

.WHT

121

0.5

Sec PpmBODY BUILDER

D1

D130F GTMXD SLD

B1

30M GTMXD SLDB1

B8

40M GTMXD SLDB8

40F GTMXD SLD

GRN DK/WHT817.

0.8

SA817

6M GT280 SLDC

6F GT280 SLDC

30F GTMXD SLDC2

30M GTMXD SLDC2

3 Wednesday, April 19, 2006001

11

h83020csheet1schematic $IVEDWORK/h83020c__001

1:27:35 pm

07i XGMT560

Engine Controls (LF6)0 GMT560Agustin VelazquezProd

B

B

BA

BAF

F

BN1.0

.6136

B

P43

A

4 1 25

YEL/BLK6055. .6053

BLU DK1.0

.6136

1.0BN

1.0L-BU

1.0D-BU

5277.

.470

1.0BLK

5377.

1.0

.6053BLU DK1.0

1.0YEL/BLK

6055.

1.0D-BU

5277.

1.0L-BU

5377.

1.0BLK

470.

Asm Conn 8F Sealed GT 280C

Asm Conn 8M Sealed GT 280C

P73

ED

ED

25

6

MAL_IND_LP

BB_PPM

TACH PRIM_PPM

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-122

Engine Controls (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020c

J1939

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

TXL0.8CAT

19GY

994.

Oil Pressure Snr

2370227VRTN

2

POS SIG

3

VREF

1

.BR

19

CAT

G826

0.8 TXLTXL0.8

G827

CAT

19BU

.

19

SPLICE

G827BU

0.8 TXL

.BR

19

2304011

Fuel Temp Snsr

REF

LOW

2

TEMP

1

G827BU

.

TXL0.8CAT

VRTNPOS SIGVREF

(Page 4)

BOOST_SPLICE

.

TXL0.8CAT

19

F421YL

.

TXL0.8CAT

19

Fuel Rail Pressure SNR

2304013 VRTN

1

POS SIG

3

VREF

2

.BR

19

CAT

G826

G833

0.8 TXL

CAT

G826

0.8 TXL

.BR

19

CAT

G849

0.8 TXL

(Page 7)

IATM_SPLICE

G833

0.8 TXL

.G833PK

19

CAT

Intake BOOST Pressure SNR

2304013

G826

0.8 TXL

.G826BR

19

CAT

1 3 2

(Page 4)

BOOST_SPLICE

G826

.YL

19

CAT

C822

0.8 TXL

(Page 7)

BOOST2_SPLICE

.G833PK

19

CAT

Panel Set: 4

J2-85

FUEL RAILPRESSURE SNRPOWER

SENSOR

J2-80

GNDSENSOR

J2-54 J2-20J2-28

OILPRESSURE AIR PRESSURE SNR

INTAKE MANIFOLDACENABLERELAY

J1-62

HIGH

J1-50

SHIELD

J1-42

LOW

J1-34

SWITCH

J1-22

CLUTCH

CAT ECU

0.5

0.5

.379BRN/WHT

0.8

BRN/WHT379.

BRN/WHT379.

30F GTMXDA11

30M GTMXDA11

J1939J1939

J1939J1939

Man Cltch Sw Top Of Trvl

A

B

30M GTMXD SLDB6

30F GTMXD SLDB6

GRN DK/WHT459.

1.0

4 Wednesday, April 19, 2006001

11

h83020csheet1schematic $IVEDWORK/h83020c__001

1:27:35 pm

07i XGMT560

Engine Controls (LF6)0 GMT560Agustin VelazquezProd

A/C StatusHVAC

AC_ENABLE_B

2361 CAT_ECU_J+

CAT_ECU_J-2362

441

CLUTCH3_PPS

(Page 9)

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-123

Engine Controls (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

CAM +-BOTTOM

CAMPROBE -LOW

OIL SW +-TOP

ENGINE TIMING

+CALIBRATION

IGN 1GND A GND B GND BGND ABATT B BATT A BATT BBATT AETHER

SOLENOID

CAT ECU

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83020c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

1003320

.E963BK

CATCAT

19

Cam Snsr

A B

1112416

Crank Sensor

A B

CAT

19WH

E964.

TXL0.80.8 TXL 1 9

CATCAT

19YL

E966.

TXL0.80.8 TXL

.E965BU

19YL

G857.

TXL0.80.8 TXL

.G856WH

19

CAT

Engine Timing Calibration Probe

1552269

1

POS NEG

2

Panel Set: 5

Uh - Ecm-B

20A

15A

Ip1 - PcmIPOWER DIST

POWER DIST

GND DISTGnd Zone #2AGnd Zone #2A

GND DIST

J2-46J2-47 J2-35J2-36J2-33 J2-25J2-26J1-70J1-65 J1-67 J1-69J1-63J1-53 J1-55 J1-48J1-52 J1-10

0.8

.1997TAN

5 Wednesday, April 19, 2006001

11

h83020csheet1schematic $IVEDWORK/h83020c__001

1:27:35 pm

07i XGMT560

Engine Controls (LF6)0 GMT560Agustin VelazquezProd

.1997TAN

12M GT280 SLDK

0.8

0.8

12F GT280 SLDK

C8

30M GTMXD SLDC8

TAN1997.

Gnd Zone #3BGND DIST

30F GTMXD SLD

20A

Uh - Ecm-BPOWER DIST

2.0

SA251 SB251

BLK/WHT251.

.251BLK/WHT

2.0BLK/WHT

251.

2.0

SB1540

.251BLK/WHT2.02.0

.

.

2.0ORN

1540

2.0ORN

1540

1540ORNORN

2.0

.

SA1540

.

1540

Ether Solenoid

A

B1540 CAT_BATA_P

ETHER_G350

CAT_BATB_P1540

439 CAT_IGN1_P

CAT_A_G251 251 CAT_B_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-124

Engine Controls (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

TEMPERATURECGI MAF

+5VSENSORPOWER

BAROMETRICPRESSURE SENSOR

INLET AIRTEMP SENSORDELTAP PRESS

CGI MAF VENTPOS SIG VRTNVREF

CAT ECU

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cabh83020c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

3

VREF

1

2304013

CGI MAF Delta Pressure Sensor

2

VRTN

3

POS SIG

1

VREF

2610524

CGI MAF Temp SensorVRTN

2

POS SIG

TXL

CAT

19

WH

G829.

(Page 7)

CTC_SPLICE

G829

WH0.8 19

CAT

TXL

.G828U773.

TXL

.U780

0.8PK

GN0.8 19

CAT

TXL

.G829 G828.

TXL

CAT

190.8

TXL

CAT

190.8GN WH

0.8 19

CAT

TXL

.G828

WH0.8 19

CAT

SPLICE

SPLICE

.G829 G828

G829

GN0.8

CAT

TXL

GN0.8 19

CAT

TXL

.G829

CAT3

SRH3

6

6

9

9

GN0.8 19

CAT

TXL

5SRH

5

GN0.8

.

TXL

CAT

190.8WH

U773.

TXL

CAT

190.8PU

2407874

Ambient Air Temp Sensor

2

(Page 6)

AAT_SPLICE

G829

1

(Page 6)

AAT_SPLICE

CAT0.8

WHU779.

.G828

CAT7 SRH

7

GN0.8

CAT

TXL

.G828

GN0.8 19

CAT

TXL

.G829

CAT

TXL

.G829

2304013

BARO Pressure SNRVRTN

2

POS SIG

3

VREF

1

GN0.819

CAT

TXL

.G829G828.

TXL TXL

CAT

190.8BR

(Page 7)

ABS_SPLICE

G829

Panel Set: 6

Pedal Position Sensor

A BC

.

0.8

WHT/BLK1164.

0.8

WHT/BLK1164

BLU DK

0.8

.1161BLU DK

0.8

.1161

40M GTMXD SLD B3

40F GTMXD SLDB3

J2-70 J2-72 J2-57 J2-38J2-16 J1-66 J1-5J1-4

A8

A8

6 Wednesday, April 19, 2006001

11

h83020csheet1schematic $IVEDWORK/h83020c__001

1:27:35 pm

07i XGMT560

Engine Controls (LF6)0 GMT560Agustin VelazquezProd

451

PPS_RTN

(Page 9)

(Page 9)

PPS

451

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-125

Engine Controls (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

INTAKEMAT

J2 95 J2 84

COOLTEMP

COMMONGND

J2 30 J2 17

SNR RTNANALOG

OFFON/

J1 59

IDLERESUME/ ACCEL

J1 44

HIGH

J1 46

SWITCHSET/

J1 35

COASTSECONDARY

FUEL

J1 27J1 3

FUELCOMMON

RTN

J1 11

LAMPIDLEHIGH

PRIMARYFUEL

J1 15

CAT ECU

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cabh83020c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

2304011

Intake Mat Sensor

1

2

TXL0.8

.G829GN

CAT

19BU

995.

SPLICE

0.8 TXL

.G829GN

19

CAT

CAT

19BU

C967.

TXL0.8

0.8 TXL 19

CAT

0.8 TXL

.G833PK

19

CAT

2304011

Cool Temp Snsr

REFLOW

2

TEMP

1

.G833PK

SPLICE

0.8 TXL 19

CAT

(Page 6)

CTS_SPLICE

G829

(Page 7)

ABS_SPLICE

G829

(Page 4)

IATM_SPLICE

G833

(Page 4)

BOOST2_SPLICE

G833

Panel Set: 7

GRN DK.

0.5

534

Headlamp Power

0.5

.RED

2013

B2

B2INTERIOR LIGHTING30M GTMXD

A3

30F GTMXDA3

BRN0.5 0.5

GRN DK534..441

534

0.8

.GRN DK

2013RED.

0.8

Gnd Zone #7AGND DIST

J2-95 J2-84J2-30 J2-17 J1-59 J1-44 J1-46J1-35J1-27J1-3 J1-11J1-15

00111

h83020csheet1schematic $IVEDWORK/h83020c__001

1:27:35 pm

07i XGMT560

Engine Controls (LF6)0 GMT560Agustin VelazquezProd

7 Wednesday, April 19, 2006

C5

GND DISTGnd Zone #7A

C4

C540F GTMXD SLD

C4

40M GTMXD SLD

A

GND

B

GND

C

SWLED

DE

LAMP

GND

F

Cat High Idle Switch

19361589PPL.

0.8 0.8

.BLU DK

CRUISE CNTRL

CRUISE CNTRLCruise Cntrl Sw

Cruise Cntrl SwCruise Cntrl SwCRUISE CNTRL

FUEL HAND & STORFuel Senders

Sec Fuel SenderFUEL HAND & STOR

FUEL HAND & STORPri Fuel Sender

470BLK.

0.8

FUEL_LVL1

FUEL_RTN

FUEL_LVL2

750 HIS_LED_GHIS_ILL_G750

750

HIS_PPS

(Page 9)

HIS_LP2509

SET_COAST_C84

87 RES_ACCEL_C

ON_OFF_C397

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-126

Engine Controls (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

N.O.PTOKILL

2 SPEEDAXLE

PTO

RESSWITCH

BRAKESWITCH PTO

ENABLESETPTO

COOLANTLOW BRAKE

SWITCH

BRAKESWITCH

N.C.

EXHAUST

STATUSLAMP STARTER

INHIBIT

PTO

CONTROLBRAKE

EXHAUSTPTO

ENGAGE

Eng Cntl Unit (Caterpilliar)

CAT ECU

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cabh83020c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 8

2 Spd Axle Sw2 SPD AXLE

Brake SwBRAKES

Exhaust Brake SwEXH BRAKE/RSTR

J1-7J1-64 J1-6J1-60 J1-56J1-58J1-49 J1-40J1-45 J1-31J1-30 J1-12J1-19

C10

Pto Enable SwUPFITTER PROV

30F GTMXD SLDC10

30M GTMXD SLD

30M GTMXDB12

750

0.5

.BLK

0.5

30F GTMXDB12

.

0.8

750

.750BLK

UPFITTER PROVPto Kill Sw

BLK

UPFITTER PROVTap Up SwTap Down Sw

UPFITTER PROV

30F GTMXD SLDD5

30M GTMXD SLDD5

447

Starter RlySTART & CHARGE

YEL.

0.8

GRN LT.

0.8

2081

Pto RlyUPFITTER PROV

488

0.8

.GRN LT

30F GTMXD SLDB9

30M GTMXD SLDB9

J

12M GT280 SLDJ

BLK/WHT451.

0.8

12F GT280 SLD

B3

0.8

.451BLK/WHT

B3

L

L

Low Coolant Sw

A

B

1478.

0.8

0.8.1478GRN LT

GRN LT

.

0.8GRN LT

1478

Wednesday, April 19, 200607i XGMT560

Engine Controls (LF6)0 GMT560Agustin VelazquezProd

8

00111

h83020csheet1schematic $IVEDWORK/h83020c__001

1:27:35 pm

UPFITTER PROVPto Enable Led

Ip2 - Brake Iso

10A

B7

30M GTMXD SLDB7

POWER DIST

1320BLU LT

30F GTMXD SLD

BLU LT1320.0.5

0.8

.

.

0.8

494

1467

0.8

.GRA/BLK

BLU LT

GRN LT.

0.5

2081

.1962BLK/WHT0.8

30F GTMXD SLDC7

30M GTMXD SLDC7

BLK/WHT1962.

TELL TALETtm - Exhaust

0.8

0.5

.BLK

SA750

Pto TtTELL TALE

750

BLK.

0.5

750PTO_TT_G

BRK_NO_P

EXH_TT

(Page 9)

COOL_PPS

451 PTO_ENABLE

PTO_ENG_DIS

PTO_LED

TAP_DOWN2664

ENGAGE_PTO2665

2663 TAP_UP

START_CAT

2SP_AXLE

86 NC_CONT

EXH_BRK

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-127

Engine Controls (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

Tap Up Sw

UPFITTER PROVISIONS

2 Spd Axle Sw

2 SPEED AXLEUPFITTER PROVISIONS

Tap Down Sw Kill Sw

UPFITTER PROVISIONS

2 Spd Axle Sw

2 SPEED AXLE 2 SPEED AXLE

2 Spd Axle Sw Exhaust Brake Sw

EXH BRAKE/RSTR

IP CLUSTERDPF Switch

0 5

.750

BLK

DPF_SW

HIS_PPS

(Page 7)COOL_PPS

(Page 8)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cabh83020c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 9Wednesday, April 19, 20069

Prod Agustin Velazquez GMT5600Engine Controls (LF6)GMT560 X07i

1:27:35 pm

$IVEDWORK/h83020c__001s ch ema tic s he et 1

h83020c11

001

.451BLK/WHT

.451BLK/WHT0.8 0.8

BLK/WHT451.

0.8

BLK/WHT

0.8

.451BLK/WHT

0.8

SD451

SF451

0.5

.451

BLK/WHT451.

0.8

BLK/WHT451.

30M GTMXD SLDC5

30F GTMXD SLDC5

Cruise Cntrl Sw

Pto SwUPFITTER PROVISIONS

Tap Up Sw 2 Spd Axle Sw

CRUISE CNTRL

Tap Down Sw Kill Sw

0.5

.451BLK/WHT

0.5

.239PNK

B4

B4

0.8

.451BLK/WHT

B10

BRN441.

0.5

30F GTMXD

B10

30M GTMXD

.451

BLK/WHT451.

0.8

2 Spd Axle Sw

BLK/WHT0.8

0.8BLK/WHT

451.

Brake Sw

BRAKES

.451BLK/WHT0.8 0.5

.750BLK

2 Spd Axle Sw Exhaust Brake Sw

750BLK

0.5

.750BLKBLK

750.

0.5

SD750

0.5

.

BLK/WHT451.

0.5

30M GTMXDA8

30F GTMXDA8

0.5BLK

2SP_A_PPS

PPS

(Page 6)

(Page 4)

CLUTCH3_PPS

EXH_SW_G2SP_SW1_PPS

BR_SW_PPS

(Page 6)

PPS_RTN

2SP_E_PPS451PTO_UP_PPSPTO_DN_PPS PTO_KIL_PPS

CRUISE_PPS

PTO_SW_PPS

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-128

ARD OUTLET(FLAME DETECT) TEMEPERATURE

J2 91

SENSOR RETURN(ARD SENSORS ACTIVE & PASSIVE)_

J2 83 J2 77

DRIVERFUEL PUMP 1+5V SENSOR POWER

(ARD ACTIVE)

J2 81

ARD FLAME BOUNDARY FUEL PUMP 2DRIVER

J2 61J2 63

TEMP SNSR (FD #2)FUEL PUMP 1DRIVER RTN

J2 111J2 113

DRIVER RTNFUEL PUMP 2

Engine Controls (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

ARD Flame Boundary SNR

0.8OR

CAT3

GROUND SI GN AL V OL T ARD Flame Detect SNR VOLT SIGNAL GROUND

2 ARD2

Y749.

Y743.

TXL

ARD

190.8OR

Y753.

TXL

ARD

19

0.8BU

Y749.

ARD3

CAT4ARD

4

Y743.

TXL

CAT

190.8OR

Y748.

TXL

ARD

190.8WH

CAT

BU

(Page 10)

ARD_SPLICE

Y745

(Page 10)

TXL

CAT

190.8GN

Y748.

TXL

ARD

190.8WH

SPLICE

Y745.

TXL

ARD

19

.

TXL

ARD

TXL

CAT

190.8GN

SPLICE

Y745.

TXL

ARD

190.8BU

Y745.

TXL

ARD

190.8

1407339

A B

C818.

ARD_SPLICE

Y745

Y743.

TXL

CAT

190.8OR

CAT1 ARD1

Y748.

TXL

CAT

190.8WH

Y748

0.8OR

C821.

190.8WH

Y748.

TXL

CAT

190.8WH

SPLICE

Y748.

TXL

CAT

190.8WH

SPLICE

Fuel Pump Sol (FORE)

TXL

CAT

190.8BU

C819.

TXL

CAT

190.8PU

Fuel Pump Sol (AFT)

1407339

A B

C820.

TXL

CAT

19 TXL

CAT

190.8BR

(Page 11)

ARD2_SPLICE

Y749

(Page 11)

ARD3_SPLICE

Y748

(Page 11)

ARD4_SPLICE

Y748

Panel Set: 10

J2-91 J2-83 J2-77J2-81 J2-61J2-63 J2-111J2-113

10

X Agustin Velazquez GMT5600Engine Controls (LF6)GMT560 X07i

W ed ne sd ay , Ap ri l 1 9, 2 00 6 1 :2 7:3 5 p m$IVEDWORK/h83020c__001s ch em ati c s he et 1

h83020c11

001

h83020c

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-129

J2-89

ARD FUEL MAINPRESS SENSOR

ARD TURBO OUTLETEXH TEMP SNSR

J2-55J2-41

PRESS SENSORARD FUEL PILOT ARD AIR PRESS

CONTROL VLV HS

J2-120

ARD AIR PRESS

J2-10

CONTROL VLV RTN

Engine Controls (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

2

GROUND

3

SIGNAL

1

VOLTS ARD Main fuel press SNRFUEL TEMP

SENSORSIGNA L FUEL TEMP

SENSOR

ARD TURBO OUTLET TEMP SNRS

0.8WH

Y749.

TXL

CAT

190.8

2304013

Y747.

TXL

CAT

190.8BR

TXL

CAT

190.8GN

Y748.

TXL

CAT

19

(Page 10)

ARD4_SPLICE

Y748

1

1

(Page 10)

ARD2_SPLICE

Y749

(Page 10)

ARD3_SPLICE

Y748

2

GROUND

3

SIGNAL

1

VOLTS ARD Pilot fuel press SNR

2304013

C803.

TXL

CAT

190.8BR

Y749

ARD Air Control Valve

2304011

1 2

GNY748.

TXL

CAT

190.8WH

Y749.

(Page 10)

ARD2_SPLICE

Y749

(Page 10)

ARD3_SPLICE

Y748

TXL

CAT

190.8WH

Y748.

3

3

CAT2ARD

2

TXL

CAT

190.8PK

T846.

TXL

CAT

190.8GN

Y749.(Page 10)

ARD2_SPLICE

C801.

TXL

CAT

190.8OR

C800.

TXL

CAT

190.8GY

J2-89 J2-55J2-41 J2-120J2-10

11

X Agustin Velazquez GMT5600Engine Controls (LF6)GMT560 X07i

W ed ne sd ay , Ap ri l 1 9, 2 00 6 1 :2 7:3 5 p m$IVEDWORK/h83020c__001s ch em ati c s he et 1

h83020c11

001

h83020c

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-130

ARD IGNITION COIL RTN

ON/OFFARD FUEL ENABLE

CONTROL VALVEARD FUEL MAIN PRESS ARD FUEL MAIN PRESS

CONTROL VALVE RTN VLV ACT RTNARD FUEL ENABLE

ARD IGNITION COIL

Engine Controls (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

ARD IGNITION COIL

PUY736.

TXL

2

1

1

CAT2

Pilot Fuel control Vlv

Y733.

TXL

CAT

190.8

1

1

Fuel Enable

CAT1

CAT

190.8PU

Y736.

TXL

CAT

190.8PU

Y734.

TXL

CAT

190.8BU

SPLICE

CAT2ARD

YL

SPARK PLUG

ARD2

1

1

Pilot Fuel control Vlv

Y737.

TXL

CAT

190.8YL

Y738.

TXL

CAT

190.8GY

CAT2ARD

2ARD

1

3

3

2

2

200.

TXL 1 90.8BK

Y751.

TXL0.8OR

Y750.

TXL0.8

J2-88J2-69J2-59 J2-60 J2-52 J2-109

X Agustin Velazquez GMT5600Engine Controls (LF6)GMT560 X07i

We dn es da y, Ap ri l 1 9, 2 00 6 1 :2 7:3 5 p m$IVEDWORK/h83020c__001s ch ema tic s he et 1

h83020c11

00112

h83020c

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-131

Fan Controls

Ecm

ENGINE CTRL

Fan

ΩA

N

S O L

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cabh83031a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

R L Y

R L Y

S S

F A N

D R I V E R

2

4

5

6

S S

S S

S S

R L Y

C O N T R O L

R L Y

Panel Set: 1

N

.

0.8BN/WH

6141

N

M

.2364BLU DK0.8

M

L

0.8GRA

2365.

L

K

.250BLK

0.8

K

J

0.8WHT

2368.

14 Way Black GT150 Sealed F ConnJ

14 Way Black GT150 Sealed M Conn

GND DISTGnd Zone #2B

EcmENGINE CTRL

Gnd Zone #2BGND DISTENGINE CTRL

Ecm

.2368WHT

0.8

Fan Relay

J12

K11 K9

L12

HALL

E

REF

POWER DISTIp1 - Trans

15A

EcmENGINE CTRL

3

001

RTN

A

F A

B

SOLENOID

HALL SENSOR

RTN

CD

EV_FAN_REF

1

X Agustin Velazquez GMT5600Fan Controls: MDD FanGMT560 X08

W ed ne sd ay , Ap ri l 1 9, 2 00 6 1 :4 2:1 6 p m$IVEDWORK/h83031a__001s ch ema ti c s he et 1

h83031a

440 FAN_PWR

250 FAN_GND

EV_FAN2366

FAN_GND22506141 EV_FAN_RTN2364 EV_FAN_SIGNAL2365

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-132

ETC (L18) 8.1L V8 GMPT VORTEC® - Gas

Family 2

has Fuse

Family 2

has Fuse

PcmENGINE CNTLSENGINE CNTLS

PcmPOWER DIST

10A

Ip2 - Brake Iso

0.5

.1320BLU LT

ETC_A

15A

Ip1 - Pcm IPOWER DIST

BRK_NO_PETC_P439 ETC_B

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cabh83021a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

M

Panel Set: 1

774..1061ORN/BLK

0.5BLU DK/WHT

0.5

MOTOR 2

J1-8

5V REF

J1-9

TPS25V REF RTN

J1-3

TPS1

J1-6

BRAKE 2

J1-7

IGN1 UART B

J1-13

J1-15

GND

J1-16

MOTOR 1TPS1

J1-2

Throttle Actuator Control Module

J1-1

TPS1

J1-10

TPS2RTN

J1-11

TPS2

J1-12

UART A

.1688BLU LT/BLK

0.5

Gnd Zone #3AGND DIST

5V REF

H

TPS1

BLK/WHT1704.

0.5

B

RTN

MTR

C

2 RTN

D

TPS1 TPS2

E

5V REF

F

TPS2TPS1

G

Wednesday, April 19, 200608 XGMT560

Etc L180 GMT560Agustin VelazquezPilot

1

Throttle Actuator Cntrl BodyMTR

A

1

TPS2

0012

h83021asheet1schematic $IVEDWORK/h83021a__001

1:31:30 pm

0.5

PPL486.

0.5

.485GRN DK

0.8BLK

452.

0.5YEL

581.

582.

0.8BRN

416GRA

0.5

.

B7

30F GTMXD SLDB7

1320BLU LT

30M GTMXD SLD

0.5

.

ETC_G351

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-133

ETC (L18) 8.1L V8 GMPT VORTEC® - Gas (continued)

CRUISE CNTL

Set Coast

CRUISE CNTL

Resume/Accel

CRUISE CNTLOn/Off

87

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cabh83021a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 2

PPS 1

J2-J J2-K

TXTOOL

J2-D

RTNPPS 2

J2-E

FWE

J2-F

PPS 1

J2-G

5V REFPPS 1

RTN

J2-A

TOOLRX

PPS 2

J2-B

5V REFPPS 2

J2-C

J1-4

COASTSETRESUME/

ACCEL

J1-5 J1-14

ON/OFF

Throttle Actuator Control Module

Throttle Actuator Cntrl Mdl

.1161BLU DK0.5

2

Pi lo t Agust in Velazquez GMT5600Etc L18GMT560 X08

Wednesday, April 19, 2006

1:31:30 pm

$IVEDWORK/h83021a__001schematic sheet1

h83021a2

001

.1164WHT/BLK

F

TOOL

RX5V REF

PPS 2

GH

PPS 2

J

PPS 2

RTNRTN

PPS 1

K

0.5

Pedal Position Sensor

A

TOOL

TX

FWE

BC

CONNECTION

NO

D

PPS 1

5V REF

PPS 1

E

BRN1271.

0.5

0.5

BLU LT1162.

0.5

PPL1272. .1274

TAN0.5

397 ON_OFF_ASET_COAST_A84RES_ACCEL_A87

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-134

Fuel (L18) 8.1L V8 GMPT VORTEC® - Gas - Family 2

86 30

30F GTMXD SLDB6

PcmENGINE CNTLS

ENGINE CNTLSPcm

Uh - Fuel Pump Rly

A 1 A 3

POWER DIST

20A Uh - Fuel

ENGINE CNTLSPcm

30M GTMXD SLDB6B7

1589.

B7

1936

FUEL_RLY_P1640465 FUEL_RLY1

FUEL_LVL219361589 FUEL_LVL1

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cabh83022a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

12088567

Fuel Pump Rly

85 87

Ω

Ω

M

F: 250

E: 40

Single Tank Dual Tanks

Dual TanksSingle Tank

Panel Set: 1

0.8

0.8

.1936BLU DK

PPL1589.

C4

00116

h83022asheet1schematic $IVEDWORK/h83022a__001

1:31:55 pm

Wednesday, April 19, 200608 XGMT560

Fuel (L18 Family 2)0 GMT560Agustin VelazquezProd

1

30M GTMXD SLD

0.8

.470BLK

8M GT280 SLD B

8M GT280 SLDB

BLK470.

0.8

D

0.8

.1936BLU DK

8F GT280 SLDD

8M GT280 SLD

D

8M GT280 SLDD

0.8

.1589PPL

8F GT280 SLD

B8F GT280 SLD

GRA120.

1.0 2.0

.120GRA

2.0

30F GTMXD SLDD1

B1B3

GRA120.

30M GTMXD SLDD1

2.0GRA120.

8M GT280 SLDF

BLK470.

0.8B

.120GRA

8F GT280 SLD

0.8

0.8

.470BLK

2.0

0.8

SC470

BLK470.

1

23

4

BLK470.

Secondary Tank Fuel Sender

2

4

Sender Asm-Fuel (W/Pmp)

Ground Zone #2BGROUND DIST

120GRA

2.0

.

SC120

8M GT280 SLDF

8F GT280 SLDF

8F GT280 SLDF

0.8PPL

C

C

C

C

GRA120.

2.0

BLU DK0.8

.1936

2.0

.120GRA

C4

PcmENGINE CNTLS

30F GTMXD SLD

(Page 2)

PMP1

350

(Page 2)

2ND_RLY

PMP2

(Page 2)

FUEL_RTN470

F_PMP_RLY_G250

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-135

30 86

(Page 1)120

PMP2

2ND_RLY

120(Page 1)

Fuel (L18) 8.1L V8 GMPT VORTEC® - Gas - Family 2

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

M

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Single Plastic Tank

Single Metal Tank

Dual Tanks

Panel Set: 2

Static Ground:Single Metal Tank

.350BLK

2.0

.1465TAN

0.8

30F GTMXD SLDB4

A

B

Secondary Fuel Tank Transfer Pump

A

8F GT280 SLDA

8M GT280 SLD

GND DISTGround Zone #12A

2.0

.350BLK

350.

2.0BLK

350.

2.0BLK

BLK350.

1.0

Secondary Fuel Pump Rly

30

85

86

87

ENGINE CNTLS

Pcm

2.0GRN LT

1058.

A

SJ350

8F GT280 SLDA

8M GT280 SLD

30M GTMXD SLDB4

s ch em ati c s he et 1

h83022a16

001

Gnd Zone #11GND DIST

TAN1465.

0.8

2

Prod Agustin Velazquez GMT5600Fuel (L18 Family 2)GMT560 X08

Wednesday, April 19, 2006

1:31:55 pm

$IVEDWORK/h83022a__001

1465.

0.8TAN

PFTANK_G

1465 FUEL_RLY2

FUEL_PMP_G

PMP1

(Page 1)

h83022a

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-136

Fuel (L18) 8.1L V8 GMPT VORTEC® - Gas - Family 3

ENGINE CNTLSPcm

30F GTMXD SLDB6

30M GTMXD SLDB6

A 1 A 3

ENGINE CNTLSPcm

POWER DIST

20A Uh - Fuel

B7

B7

PcmENGINE CNTLS

FUEL_LVL1

FUEL_RLY_P1640465 FUEL_RLY1

FUEL_LVL219361589

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cabh83022c

86

12088567

Fuel Pump Rly

85

30

87

Ω

Ω

M

F: 250

E: 40

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 1

B

Single Tank Dual TanksDual TanksSingle Tank

3

4

Secondary Tank Fuel Sender

2

4

6F GT280 SLD

BLK

SA120

Sender Asm-Fuel (W/Pmp)

1

2

SA470

0.8

.470

D1

30M GTMXD SLDD1

GRA120.

2.0

30F GTMXD SLD

.

GRA120.

2.0

BLK

120GRA

2.0

B1B3

Ground Zone #2B

GROUND DIST

0.8

.470

1936BLU DK

Uh - Fuel Pump Rly

A 1 A 3

0.8

.

6F GT280 SLDD

6M GT280 SLDD

6F GT280 SLDF

6M GT280 SLDF

BLK470.

0.8

.120GRA

1.0

.120GRA

BLU DK0.8

.1936

2.0

Wednesday, April 19, 2006

1:32:27 pm

$IVEDWORK/h83022c__001s ch em ati c s he et1

h83022c17

001Fuel (L18 Family 3)

1

Prod Agustin Velazquez GMT5600GMT560 X08

0.8

.470BLK BLK

470.

C

C

0.8

.120GRA

GRA120.

2.0

2.0

C4

30F GTMXD SLDC4

30M GTMXD SLD

.

0.8

PcmENGINE CNTLS

PPL1589

6M GT280 SLDB

1589.

0.8PPL

(Page 2)

350(Page 2)

PMP1

FUEL_RTN470

(Page 2)

PMP2

2ND_RLY

250 F_PMP_RLY_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-137

30 86

PMP2

120(Page 1)

(Page 1)120

2ND_RLY

Fuel (L18) 8.1L V8 GMPT VORTEC® - Gas - Family 3

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

M

Static Ground:

Panel Set: 2

Primary Tank Static Ground:Secondary Tank

6F GT280 SLDA

Agustin VelazquezProd2

Fuel (L18 Family 3)

GND DISTGnd Zone #9

TAN0.8

.1465

00117

h83022csheet1schematic $IVEDWORK/h83022c__001

1:32:27 pm

Wednesday, April 19, 200608 XGMT560 0 GMT560

0.8

.1465TAN

30F GTMXD SLDB4

2.0

.350BLK

Secondary Fuel Pump Rly

8587

SA350

BLK350.

2.0

Gnd Zone #10GND DIST

1.0

.350BLKBLK

350.

1.0

6M GT280 SLDA

2.0

BLK

350.

2.0

.1058GRN LT

Secondary Fuel Tank Transfer Pump

A

B

ENGINE CNTLSPcm

Gnd Zone #3CGND DIST

30M GTMXD SLDB4

(Page 1)

PMP1

FUEL_SEND_GPFTANK_GSFTANK_G

FUEL_RLY21465

h83022c

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-138

Fuel (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel

POWER DISTUh - Fuel20A

A1A3

PcmENGINE CNTLS

1936.0.8BLU DK

B7

B7 B6

30M GTMXD SLDB6

30F GTMXD SLD

PPL1589.0.8

PcmENGINE CNTLS

PcmENGINE CNTLS

FUEL_LVL11589 1936 FUEL_LVL2

FUEL_RLY14651640 FUEL_RLY_P

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

h83022d

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

86

12088567

Fuel Pump Rly

85

30

87

M

Static Ground:Single Metal Tank

Splice required for L18

8M GT280 SLDF

Single Metal Tank Dual Tanks

Single Tank Dual Tanks

Panel Set: 1

RPO LEGEND

NJ9/NN4/N23 - FAMILY 2 SINGLE REAR METAL FUEL TANK

NG6 - FAMILY 2 DUAL FUEL TANKS

NK1/NJ2 - FAMILY 2 SINGLE MID-SHIP PLASTIC FUEL TANK

FAM2 - FAMILY 2

D1

8F GT280 SLDF

30F GTMXD SLDD1

30M GTMXD SLD

BLK350.

2.0

Uh - Fuel Pump Rly (Secondary)

A1

B1 B3

2.0

.120GRA

2.0

.120GRA

Ground Zone #2BGROUND DIST

GRA120.

2.0

1

Beta Agustin Velazquez GMT5600Fuel (LMM)GMT560 X08

Wednesday, April 19, 2006

1:32:46 pm

$IVEDWORK/h83022d__001s ch em ati c s he et1

h83022d5

001

Gnd Zone #11GND DIST

1.0

.350BLK

PPL

.470BLK

0.8

Ground Zone #12AGND DIST

0.8

.1589

0.8

.1936BLU DK

C

0.8

C

D

8F GT280 SLDD

8M GT280 SLD

1589PPL

0.8

B

0.8

.

8F GT280 SLDB

8M GT280 SLD

C4

30M GTMXD SLDC4

0.8BLK

470.

30F GTMXD SLD

0.8BLK

470.

BLK

BLK470.

0.8

.470BLK

0.8

.470

4

Primary Tank Fuel Sender

2

4

SC470

0.8

ENGINE CNTLSPcm

Secondary Tank Fuel Sender

2

SJ350

Gnd Zone #11

BLK350.

1.0 1.0

.350BLK

GND DIST

Secondary Fuel Tank Transfer Pump

A

B

GND DISTGround Zone #12A

PFTANK_GFUEL_SEND_G

470 FUEL_RTN

F_PMP_RLY_G250

FUEL_PMP_G PFTANK_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-139

Fuel (LF8) 7.8L L6 Isuzu 6H - Diesel – (LF6) 7.2L L6 Caterpillar ® C7 - Diesel

B7 30F GTMXD SLDB6

B6B7

ENGINE CNTLSEcu

30M GTMXD SLD

ENGINE CNTLSEcu

0.8

.1936BLU DKPPL

1589.

0.8

1589 FUEL_LVL1 FUEL_LVL21936

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

h83022b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Static Ground:Primary Tank

Panel Set: 1

Static Ground:

4

BLK470.

0.8

Dual TanksSingle Tank

Secondary Tank

30M GTMXD SLDC4

Primary Tank Fuel Sender

2

GND DISTGnd Zone #10

1

Prod Agust in Velazquez GMT5600Fuel (LF8/LF6)GMT560 X08

Wednesday, April 19, 2006

1:32:11 pm

$IVEDWORK/h83022b__001sch ematic sheet1

h83022b3

001

6M GT280 SLDB

Secondary Tank Fuel Sender

2

4

Gnd Zone #3CGND DIST

6M GT280 SLDD

B

BLK470.

0.8

6F GT280 SLD

6F GT280 SLDD

.350BLK

1.0

.350BLK

C

Gnd Zone #9GND DIST

1.0

EcuENGINE CNTLS

C4

BLK470.

0.8

BLU DK1936.

0.8

30F GTMXD SLD

C

.1589PPL

0.8

0.8

.470BLK

.

1.0

SA350

0.8

.470BLK

FUEL_RTN470

SA470

BLK350

SFTANK_G FUEL_SEND_GPFTANK_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-140

Heated Fuel - Water In Fuel (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel

Ttm - Water In FuelTELL TALE

Uh - Htd FuelPOWER DIST

Pcm WifLLY ENG CNTLS

20A

POWER DISTUh - Eng 1

10A

LMM_WIF239 HFUEL_R3_P HFUEL_3_P1440 WIF

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

h83023d

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Engine Earth A

50

GND DIST

J2-A

YEL/BLK

J2-B

GND

TXL

.

Heated/Water In Fuel

8A-

J1-7318-3324-30

IC95

8A-

GND

J1-B

CLOSES FROM -40 C TO 60 C

0.85

Panel Set: 1

GND DIST

J2-7322-1424-40o

PNK161.25

UPC

HFUEL_SW_G

Engine Earth B

FNA

14A

o

1 4A 1 2-Page

97365742WIF

50ISUZU

Conn 40M GT 150-280 Sld13551537

J2279

19

IC91IC96

TXL

12-Page

YEL/BLK

SB508

WIF_G

.

J1-A

ISUZU

HTD FUEL

IC90

150 WATTS

YEL/BLK508.

0.8

0.8

.50824M GTMXD SLD

B8

0.8

24F GTMXD SLDB8

YEL/BLK508.

2677.

1.0

.2677PNK

PNK

A5

Conn 40F GT 150-280 Sld27

1.0

9

A5

YEL/BLK508.

0.8

Ip2 - Heated Fuel Rly

N30

N85

N86

N87

GND DISTGnd Zone #4B

1

Beta Agustin Velazquez GMT5600Heated Fuel/WIF (LMM)GMT560 X08

Wednesday, April 19, 2006

1:34:37 pm

$IVEDWORK/h83023d__001s ch ema ti c s he et 1

h83023d3

001

12088567

Heated Fuel

3086

8785

450 HFUEL_R3_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-141

Heated Fuel - Water In Fuel (LF6) 7.2L L6 Caterpillar ® C7 - Diesel

.508YEL/BLK

Ttm - Water In FuelTELL TALE

WIF

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

A

B

Panel Set: 1

NWB/KJK

40F GTMXD SLDA4

Water In Fuel Snsr

0.8

YEL/BLK0.8

Prod1

Gnd Zone #3AGND DIST

.508YEL/BLK

0013

h83023csheet1schematic $IVEDWORK/h83023c__001

1:34:18 pm

Wednesday, April 19, 200608 XGMT560

Heated Fuel/WIF (LF6)0 GMT560Agustin Velazquez

WIF_G351

40M GTMXD SLDA4

h83023c

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-142

Pcm WifLF8 ENG CNTLS

LF8_WIF

Heated Fuel - Water In Fuel (LF8) 7.8L L6 Isuzu 6H - Diesel

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

50

YEL/BLK508.

TXL

2

Yazaki

Panel Set: 1

ISUZUTBDTBD

001

7323-1424-40FNAUPC

wif

Sumitomo 6 Way Conn2

Water In Fuel Snsr

A

B

0.8 19

YEL/BLK0.8

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Wednesday, April 19, 2006

1:34:00 pm

$IVEDWORK/h83023b__001s ch ema ti c s he et 1

h83023b4

001

.508

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E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-143

Automatic Transmission (LCT) Transmission Control Module

0.8

ORN1983.

POWER DISTIp1 - Trans

10A

Eng Speed Snsr (Tiss)

A

TISS HI

SPEED SENSOR

TRANS INPUT

LO

B B

Turbine Spd Snsr

A

TURS HI

SPEED SENSOR

TURBINE

LO

RED/BLK1230.

0.8

Uh - Pcm BPOWER DIST

15A

15A

POWER DISTUh - Pcm B

B

LO

TRANS OUTPUT

.

0.8PPL/WHT

821

Trans Output Spd SnsrSPEED SENSOR

TOSS HI

A440 TCM_BAT_PP

1020 LCT_IGN0_P

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83027a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 1

L18has FuseFamily 2

C5

0.8TAN/WHT

2678.

24M GTMXD SLD

PcmL18 ENG CNTLS

BLU LT1984.

0.8

.2678TAN/WHT0.5

L18 ENGINE CNTLSPcm

SA2678

GND DISTGnd Zone #3A

GND DISTGnd Zone #3A

GRN LT/BLK822.

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IGN1

DE

ILLUM

F

.2678TAN/WHT0.5

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AB

GND

C

Pcm/EcuENGINE CNTLS

TAN/WHT0.5

.2678

X08

1:35:20 pm

$IVEDWORK/h83027a__001s ch em ati c s he et 1

h83027a19

001Wednesday, April 19, 20061

Pilot Agustin Velazquez GMT560BLCT TransGMT560

J1-80

NT+

GND

J1-9

IGN0

GND

J1-69

J1-70

V_BATT_B NE+

J1-59 J1-60

NO+

DEFEATOVERDRIVE

J1-61

J1-63

TPS

J1-44

CLASS II

J1-46

J1-39

NE-

TRANS INPUT SPEED

J1-40

NO-

TRANS OUTPUT SPEED

UNMANAGEDTORQUE

J1-22J1-12

V5AZERO

CROSSING

J1-18

J1-20

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LCT TCM

J1-10

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GND DIST

0.5TAN/WHT

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0.8

24F GTMXD SLDC5

BLK/WHT0.8

.351

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C12

10A Uh - Eng1

40F GTMXD SLDC12

40M GTMXD SLD

0.8TAN/WHT

2678.

Class 2SERIAL DATA LINK

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10A

Ip2 - Lh Parklamp

TCM_BAT_PP2440

2467 2221 REP_TOSS_HI_1 351 LCT_GG2470 LCT_CL2

DEL_TORQ464

UNMAN_TORQ

ODDS_LP2509

ODDS_LED_P239

ODDS_SW_G750

ODDS_ILL_G750

TCM1_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-144

Automatic Transmission (LCT) Transmission Control Module

S o l e n o i d E

O n / O f f

O n / O f f

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S S 1

M A I N

P C S 1

T C C

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N L V B S C E

S o l e n o i d A

N H

V B S O E

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IMS

I M S P

I M S N S

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I M S A

P S 4 ( S w i t c h R )

N o t U s e d

M O D

STS

N o t U s e d

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P S 2 ( S w i t c h D )

S S 2

P S 1 ( S w i t c h C )

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S S 3

S o l e n o i d D

S o l e n o i d B

O n / O f f

S o l e n o i d C

78920 21 22 2324 34611 1415161718 192

Allison Trans 4 Gen

1 10

IMS_NS1786

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83027a

GM LAN

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 2

ENGINE CNTLSPcm/Ecu

40F GTMXD SLDB9

.773

Ttm - Check Trans

L18 ENG CNTLSPcm

GRA0.8

.1224PNK

0.8

TELL TALE

.2469BRN/WHT0.8

EXTERIOR LIGHTSBack Up Lamps

.772YEL

0.8

0.8PNK

139.

WHT1994.

0.80.8YEL/BLK

2879.

LMM ENG CNTLSGpm

.1234GRA

0.8

.2471PPL

0.8

0.8BRN

323.

.1234GRA

0.8

.2527ORN/WHT0.8

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30

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12088567

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F9

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85 87

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IMSBIT A

J1-73

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NL VBS CE

J1-76

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J1-77

PSMREV

GPO6

J1-64J1-65

REVER WAR

J1-66

HISHIELD

J1-67

J1-57

ANALOG

J1-58

RTN

HI

J1-6

E SWGND

J1-51

C SWGND

J1-52J1-53

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TEMP

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SUMP

J1-55

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PCS 1Solenoid A

PSM E

LO

J1-47

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J1-5

J1-38

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J1-29

J1-33

GNDD SW

J1-34

BIT PIMS

LOSOL_B

J1-36

IMSNEUTRAL

GPO5

J1-24

Term

J1-26

GMLAN

J1-27

LO

HSD1

J1-14

IMSBIT C PSM C

J1-17

LCT TCM

J1-11

BLK/WHT0.8

GMLAN ConfLCT TRANS

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15A

Ip1 - Turn/BackupPOWER DIST

0.8BLU DK

1530.

0.8

.139PNK

0.8

.1226RED

LMM ENG CNTLSGpm

LCT TRANS

0.8GRN DK/WHT2528.

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2529.

24F GTMXD

LCT TRANSGMLAN Conf

SB139

1234.

24M GTMXDB7

0.5GRA

PPL0.8

.898

40M GTMXD SLDB9

ORN/BLK0.8

Wednesday, April 19, 20062

Pi lot Agust in Velazquez GMT560BLCT TransGMT560 X08

1:35:20 pm

$IVEDWORK/h83027a__001schematic sheet1

h83027a19

001

.1786

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0.8

.7581PPL

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.1524

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.1227YEL/BLK0.8

0.8BLU DK

1225.

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GMLAN_106105

GMLAN_96106

463 REQ_TORQ

6106 GMLAN_5_1

6105 GMLAN_6_1

6105

BU_LCT_P139

BU_LCT_124

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-145

Automatic Transmission (LCT) Transmission Control Module

SPEED SENSOR

TRANS OUTPUT

Trans Output Spd SnsrEng Speed Snsr (Tiss)SPEED SENSOR

TRANS INPUT

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83027b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 3

GMLAN Conf

LCT TRANS

J1-27

HI

J1-6 J1-26

TermGMLANLO

HI

59

TISSHI

TOSS

60

LOTISS

39 40

TOSSLO

Md Tcm

MD TCM (WTEC)

SA6105

DATA LINK CONNData Conn

DATA LINK CONN

Data Conn

0.8

.6105BLU DK

LCT TRANSGMLAN Conf

A

TOSS HILO

B

LCT TRANSGMLAN Conf

GMLAN ConfLCT TRANS

0016

h83027bsheet1schematic $IVEDWORK/h83027b__001

8:21:32 am

Friday, May 19, 200608 XGMT560

MD Trans (LF8&LF6)0 GMT560Agustin VelazquezBeta

3

0.8

BLU DK6105.

.400YEL

0.8

0.8BLU DK

6105.

.

0.8BLU LT

6106

TISS HI

AB

LO

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LCT TRANS

0.8PPL

401..1230

RED/BLK0.80.8

BLU DK/WHT1231.

GMLAN_5_1

GMLAN_8

GMLAN_6_16105

GMLAN_5_16106

GMLAN_6_26105

GMLAN_6_2GMLAN_6_1

GMLAN_7

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-146

Automatic Transmission (MD) Transmission Control Module

Transmission Optional Connector

0.8

0.8TAN/WHT

981.

G

.980PPL/WHT

HJ

.1148GRA

0.8

2522.

.1481YEL

0.8

.476BLK

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0.8YEL

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K

TAN0.8

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BLU LT0.8

POWER DISTIp1 - Trans

10A

POWER DIST

Uh - Pcm B

25A/LF8.1971WHT

10A/LF625A/LF8

Uh - Pcm BPOWER DIST

TEMP

18

SIG

SUMP TEMP OIL LEVEL

GNDANALOG

19 11

(TCC) TCC

12

SIG

SENSOR

OIL LVL

15 16

SENPWR

HSD3

1227.YEL/BLK

10F MP150 SLDFEC DAB

0.8PPL

1146.

GRN DK1531.

440 TCM_BAT_P1020 MD_IGN0_P

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83027b

J1939

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

P

Panel Set: 1

PPPPPPPPP

70

BATT

58

GND

63

IGN0TEMPSUMP

64

SIGNALSUMP TEMP

54

ANALOGAUX

42

HOLD(INPUT)ENABLE

PTO

43

INDICATOR

45

RANGE

SHIFT SELECTOR DIR SIGNAL

34

TCC

37

REQUEST

3

DIGITALGND

(OUTPUT)ENGAGE

PTO

30

TCCHSD3

31

SIGNALPOWER

OIL LVLSIGNAL

16

NEUTRALAUTO

17 22

PUMPENABLE

23

PUMP MODE

MD TCM (WTEC)

1

RANGEINHIBIT

BATT

10 12

Beta Agustin Velazquez GMT5600GMT560 X08

Friday, May 19, 2006

8:21:32 am

$IVEDWORK/h83027b__001s ch em ati c s he et 1

h83027b6

001

J1939J1939

MD Trans (LF8&LF6)

1

J1939

40F GTMXD SLDA1

J1939

440.

0.8ORN

8

12

IGNPOWER

13

V BAT

14

ShieldLo

15

3

DIM IN

5

GND Hi

Gnd Zone #4BGND DIST

BIT 1DATASHIFT

11

0.8GRN DK

1373.

A1

.598GRA

0.8

40M GTMXD SLD

25A/LF8 WHT0.810A/LF6

.1994WHT

0.8

POWER DIST

A4

10A/LF615A/LF8

Uh - Pcm B

0.8YEL/BLK

A4

0.8

.1373GRN DKINTERIOR LIGHTING

Dimmer Signal Dist

10A POWER DISTIp1 - Trans

10A

0.5GRA

.407BLK

0.8

0.8GRN DK

8.

SHIFT_LP_G450

2362 SHIFT_J- 2361 SHIFT_J+

SHIFT_BAT_P440

SHIFT_IGN0_P1020

SHIFT_DIM

MD_BAT_P440

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E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-148

Automatic Transmission (MD) Transmission Control Module (continued)

SPEED SENSOR

TRANS OUTPUT

Trans Output Spd SnsrEng Speed Snsr (Tiss)SPEED SENSOR

TRANS INPUT

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83027b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 3

GMLAN Conf

LCT TRANS

J1-27

HI

J1-6 J1-26

TermGMLANLO

HI

59

TISSHI

TOSS

60

LOTISS

39 40

TOSSLO

Md Tcm

MD TCM (WTEC)

SA6105

DATA LINK CONNData Conn

DATA LINK CONN

Data Conn

0.8

.6105BLU DK

LCT TRANSGMLAN Conf

A

TOSS HILO

B

LCT TRANSGMLAN Conf

GMLAN ConfLCT TRANS

0016

h83027bsheet1schematic $IVEDWORK/h83027b__001

8:21:32 am

Friday, May 19, 200608 XGMT560

MD Trans (LF8&LF6)0 GMT560Agustin VelazquezBeta

3

0.8

BLU DK6105.

.400YEL

0.8

0.8BLU DK

6105.

.

0.8BLU LT

6106

TISS HI

AB

LO

LCT TRANSGMLAN ConfGMLAN Conf

LCT TRANS

0.8PPL

401..1230

RED/BLK0.80.8

BLU DK/WHT1231.

GMLAN_5_1

GMLAN_8

GMLAN_6_16105

GMLAN_5_16106

GMLAN_6_26105

GMLAN_6_2GMLAN_6_1

GMLAN_7

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-149

Exhaust Brake/Restrictor (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel –

(LF8) 7.8L L6 Isuzu 6H - Diesel – (LF6) 7.2L L6 Caterpillar ® C7 - Diesel

ENGINE CNTLSEcu

Headlamp IllumINTERIOR LIGHTING ENGINE CNTLSEcu/Pcm

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83029a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 1

TELL TALETtm - Exhaust

BLK/WHT1962.

Gnd Zone #7A/EcuGND DIST/CAT ENG CNTLS

0.8BLK/WHT

1962.

0.8

30F GTMXD SLDC7

30M GTMXD SLDC7

B3

30M GTMXDB3

ILLUM

GND

F

Gnd Zone #7AGND DIST

30F GTMXD

Exhaust Brake Sw

A

GND

B

GND

C

SWLED

DE

XGMT560

Exhaust Brake/Rstr (Diesel)0 GMT560Agustin VelazquezBeta

1

.2081GRN LT0.5

2509 EXH_BRK_LP

EXH_ILL_G750

2081 EXH_BRK

EXH_TEL

EXH_TT

EXH_SW_G750

0014

h83029asheet1schematic $IVEDWORK/h83029a__001

1:36:59 pm

Wednesday, April 19, 200608

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-150

Starting & Charging (L18) 8.1L V8 GMPT VORTEC® - Gas

Family 2 has Fuse

A3

Ip1 - Start

POWER DIST

30F GTMXD SLD

POWER DIST

40A Maxi - Ign1

RED5.0

.242

POWER DISTIp1 - Start10A

STARTRLY_PCRANK2_P

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83030a

M

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

has FuseFamily 2

Panel Set: 1

A310A

30F GTMXD SLD

5.0

Motor Starter V8

B

B_CASE

S

S_CASE

RED242.

30M GTMXDB9

B12

30F GTMXDB9

87

12193604

Starter Rly

85

3086

A7 A9

B7B9

30F GTMXD

30F GTMXD SLDB2 M5

Start Ring Term 1A

B

Uh - Starter Rly

GRN DK1433.

0.5

PcmENGINE CNTLS

Case GndGND DIST

Battery PositiveBATTERIES

PPL806.

0.5

ENGINE CNTLSPcm

GMT560 X08

Wednesday, April 19, 2006

1:37:34 pm

$IVEDWORK/h83030a__001s ch em at ic s he et1

h83030a19

001

Man Cltch Sw Btm Of Trvl

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B

1

Beta Agustin Velazquez GMT5600Starting & Charging (L18)

30M GTMXD SLDA3

GRN DK

1433.

0.8

B2

0.5

.1433GRN DK

30M GTMXD SLD

30M GTMXDB12

.6PPL

3.0

PPL0.5

.806

L18_CRANK

STARTRLY2_P806

(Page 2)

START

START

STARTER_G

447 PCM_START

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-151

Starting & Charging (L18) 8.1L V8 GMPT VORTEC® - Gas (continued)

(Page 3)

SENSE

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83030a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 2

G en er at or Ge ne ra torOutput

Secondary

With Isolator Single Generator Dual Generators

VNF

GeneratorSecondary

OutputSenseOutput

Primary

OutputGenerator

RED

SC2

GeneratorPrimary

OutputGeneratorPrimary

SenseGenerator

SenseGenerator

M8

Start Ring Term 3A

B

2

19.0

.

RED2.

0.5

M10

Iso Term Jct 2A

B

8.0

..

19.0

2RED

Start Ring Term 3

M8

A

B

2RED

A

B

SA2

M8

Start Ring Term 3

RED

SC2

RED8.0

.2

0.5

.2.

19.0

2RED

8.0RED

2.

BATTERIESIsolator Post

.

19.0

2RED

Iso Term Jct 3

M10

A

B

Starting & Charging (L18)0 GMT560Agustin VelazquezBeta

2

00119

h83030asheet1schematic $IVEDWORK/h83030a__001

1:37:34 pm

Wednesday, April 19, 200608 XGMT560

2

RED2.

0.5

RED.

19.0

GEN_1

(Page 3)

(Page 3)

GEN_2

ISO_POST

(Page 1)

START

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G

E

D-152

Starting & Charging (L18) 8.1L V8 GMPT VORTEC® - Gas (continued)

SF2SENSE

(Page 2)2

GEN_2

(Page 2)22

(Page 2)

GEN_1

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83030a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

CS130 CS130

TBD - KG4; 150 amps

Panel Set: 3

15744911 - K68; 105 ampsTBD - KG4; 150 amps

NOTE:

Family 2: 10480382 - K65; 95 amps

15744912 - K68; 105 amps

DualSingle

Family 3:

Optional Generators:

25.

0.8BRN

19

h83030asheet1schematic $IVEDWORK/h83030a__001

1:37:34 pm

Wednesday, April 19, 200608 XGMT560

Starting & Charging (L18)0 GMT560Agustin VelazquezBeta

3

001

Dual G Ring Term A

B

Gen Ring Term A

B

GND DIST

1.0

.2RED

.25BRN

0.8

Case Gnd

PcmENGINE CNTLS

0.8BRN

25.

0.8

.25BRN

CASE

D

AC SENSE

G3 ~

STATOR

FIELD (ROTOR)

PHASE

DC SENSE

LAMPDRIVER

TURNON INPUT

FIELD

A

B

BAT

C

2nd Generator Asm

CASE

D

DC SENSE

PHASE

FIELD (ROTOR)

STATOR

3 ~G

AC SENSE

Generator Asm

A

B

BAT

C

FIELD

ON INPUTTURN

DRIVERLAMP

PcmENGINE CNTLS

GND DISTCase Gnd

SA25

RED2.

1.0

L_TERM_L18

2ND_GEN_GGEN_G

F_TERM_MON23

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G

E

D-153

Starting & Charging (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel

Maxi - Ign140A

POWER DIST

5.0

.242RED

STARTRLY_P

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83030d

M

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 1

Glow Plug CntrlLMM ENG CNTLS

.6PPL

5.0

RED2

19.0

GND DIST

30F GTMXD SLDA3

.

Battery Positive

Ring Terminal

M8

A

B

Case Gnd

BATTERIES

10A

Ip1 - StartPOWER DIST

B7B9

Uh - Starter Rly

87

12193604

Starter Rly

85

3086

A7 A9

5.0RED

242.

M5

Start Ring Term 1A

B

30M GTMXD SLDA3

X08

Wednesday, April 19, 2006

1:42:00 pm

$IVEDWORK/h83030d__001s ch em ati c s he et1

h83030d4

0011

Prod Agustin Velazquez GMT5600Starting & Charging (LMM)GMT560

B

B_CASE

S

S_CASE

Motor Starter V8

PcmENGINE CNTLS

SB2

8.0

.2RED

GLO_CNTL

START

START

(Page 2)

STARTER_G

STARTRLY2_P806

PCM_START447

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G

E

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Starting & Charging (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

(Page 3)

GEN_1

SENSE

(Page 3)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83030d

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

SenseGeneratorGenerator

Output

Panel Set: 2

Primary

With Isolator Single Generator Dual Generators

VNF

OutputGeneratorSecondary

OutputGeneratorSecondary

OutputGenerator

Primary

OutputGeneratorPrimary

SenseGenerator

SenseGenerator

0.5

.2REDRED

2

19.0

.

19.0

.

2.

8.0RED

RED2

RED2

19.0

.RED

8.0

.2

.

19.0

2

RED2.

0.5

SC2

RED

Isolator PostBATTERIES

0014

h83030dsheet1schematic $IVEDWORK/h83030d__001

1:42:00 pm

Wednesday, April 19, 200608 XGMT560

Starting & Charging (LMM)0 GMT560Agustin VelazquezProd

2

RED

0.5

.2RED

SC2

2

19.0

.

8.0RED

2

SA2

Ring TerminalA

B

.

Ring TerminalA

B

M8

Start Ring Term 3

M8

A

B

M10

Iso Term Jct 3A

B

Iso Term Jct 2

M10

A

B

START

(Page 1)

ISO_POST

GEN_2

(Page 3)

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G

E

D-155

Starting & Charging (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

SF2

GEN_2

(Page 2)22

(Page 2)

GEN_1

SENSE

(Page 2)2

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83030d

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

CS130 CS130

Optional Generators:

15744912 - K65; 95 amps

15744912 - K68; 105 amps

NOTE:

TBD - KG4; 150 amps

Panel Set: 3

2.

1.0RED

BRN25.

0.8

ENGINE CNTLSPcm

0.8

.2524BRN

Dual G Ring Term A

B

PcmENGINE CNTLS

1:42:00 pm

Wednesday, April 19, 200608 XGMT560

Starting & Charging (LMM)0 GMT560Agustin VelazquezProd

3

0014

h83030dsheet1schematic $IVEDWORK/h83030d__001

B

Gen Ring Term A

1.0

.2RED

CASE

D

PHASE

FIELD (ROTOR)

STATOR

3 ~G

AC SENSE

2nd Generator Asm

A

B

BAT

CB

BAT

CCASE

D

FIELD

ON INPUTTURN

DRIVERLAMP

DC SENSE

Generator Asm

AC SENSE

G3 ~

STATOR

FIELD (ROTOR)

PHASE

DC SENSE

LAMPDRIVER

TURNON INPUT

FIELD

A

GND DISTCase GndCase Gnd

GND DISTENGINE CNTLS

Pcm

F_TERM_MON23

2ND_GEN_G

L2_TERM_LMML_TERM_LMM

GEN_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G

E

D-156

Starting & Charging (LF8) 7.8L L6 Isuzu 6H - Diesel

5.0RED

242.

Maxi - Ign1

40A

POWER DIST

PPL

30F GTMXDB12

0.5

.806

10A Ip1 - StartPOWER DIST

Ip1 - Start

10A

30F GTMXD SLDA3

POWER DIST

CRANK2_P806 STARTRLY2_P STARTRLY_P

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83030b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

M

Panel Set: 1

PPL

GRN DK1433.

0.8

5.0

.242RED

806.

0.5

M5

A

B

Start Ring Term 1

30F GTMXDB9

A7 A9

B7B9

EcuENGINE CNTLS

87

12193604

Starter Rly

85

3086Uh - Starter Rly

S

S_CASE

Motor Starter Isuzu

B

B_CASE

30M GTMXDB9

0.5

.1433GRN DK

0.5

30M GTMXDB12

GRN DK1433.

GND DISTCase Gnd

Battery PositiveBATTERIES

Ecu

Starting & Charging (LF8)001

6

h83030bsheet1schematic $IVEDWORK/h83030b__001

1:39:12 pm

Wednesday, April 19, 200608 XGMT560 0 GMT560Agustin VelazquezBeta

1

Man Cltch Sw Btm Of Trvl

A

B

ENGINE CNTLS

A3 30M GTMXD SLD

.6

30F GTMXD SLDB2

PPL5.0

ECU_CRANK

30M GTMXD SLDB2

START

(Page 2)

START

447 ECU_START

STARTER_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G

E

D-157

Starting & Charging (LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83030b

CS130

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

15015182 - KG8; 130 amps

Panel Set: 2

NOTE:Optional Generators:

15015180 - K60; 100 amps

15015181 - KW1; 160 amps

EcuENG CNTLS

Gen Ring Term

M10

A

B

0.8BRN

25.

EcuENG CNTLS

25BRN

0.8

SA25

30M GTMXD SLDB8

Ttm - BatteryTELLTALE

.

30F GTMXD SLDB8

.BRN

25

0.8BRN.

Start Ring Term 3

M10

A

B

SC2

0.5

25

0016

h83030bsheet1schematic $IVEDWORK/h83030b__001

1:39:12 pm

Wednesday, April 19, 200608 XGMT560

Starting & Charging (LF8)0 GMT560Agustin VelazquezBeta

2

D

Case GndGND DIST

ON INPUT

FIELD

Generator Asm

AC SENSE

G

A

B

BAT

CCASE

3 ~

STATOR

FIELD (ROTOR)

PHASE

DC SENSE

LAMPDRIVER

TURN

SF2

1.0

.2RED

0.5RED

2.

8.0

RED19.0

.2

RED2.

L_TERM_TTM

L_TERM_MON

23

GEN_G

START

(Page 1)

F_TERM_MON

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G

E

D-158

Starting & Charging (LF6) 7.2L L6 Caterpillar ® C7 - Diesel

30F GTMXD SLDA3

30M GTMXD SLDA3

POWER DISTIp1 - Start

10A

30F GTMXDB12

0.5

.806PPL

RED242.

RED

Maxi - Ign140A

POWER DIST

5.0

.242

STARTRLY_P

CRANK2_P

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83030c

M

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 1

30C-1

PAGE 8A-TBDMOTOR STARTEROVERCRANK SW

30C-130C-1

PAGE 8A-CAT MOTOR STARTER

30C-1OVERCRANK SWMOTOR STARTER

GND ZONE #2C

Start Ring Term 1

&KQR-KQR

CAT MOTOR STARTER

85

Starter Rly

12193604

87

A7 A9

B7B9

ENGINE CNTLSEcu

Uh - Starter Rly86 30

.1433GRN DK0.8

.1433GRN DK0.5

B2

30M GTMXDB12

30F GTMXD SLD

B9

B12

.447YEL

1.0

30M GTMXD

θ

A

B

1M MP280 SLDA

YEL1.0

.447

Overcrank Prot Temp Strtr Sw

1:41:30 pm

Wednesday, April 19, 200608 XGMT560

Starting & Charging (LF6)0 GMT560Agustin VelazquezBeta

1

1F MP280 SLDA

0015

h83030csheet1schematic $IVEDWORK/h83030c__001

Man Cltch Sw Btm Of Trvl

A

B

10A

Ip1 - StartPOWER DIST

B9

0.8PPL

806.

30F GTMXD

PPL806.

0.5

GRN DK1433.

0.5

30M GTMXD SLDB2

A

0.8YEL

447.

1F MP280 SLDA

1M MP280 SLD

.6PPL

5.0

G

S

GND DISTGnd Zone #2B

Battery PositiveBATTERIES

5.0

Starter Motor - Cat

B

START_G

START

START

(Page 2)

CRANK_C_P

START_CAT447

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G

E

D-159

Starting & Charging (LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

2 2

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83030c

CS130

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

15015182 - KG8; 130 amps

15015181 - KW1; 160 amps

15015180 - K60; 100 amps

Optional Generators:

Panel Set: 2

NOTE:

B

BAT

CCASE

D

B8

G

AC SENSE

Generator Asm

FIELD

ON INPUTTURN

DRIVERLAMP

DC SENSE

PHASE

FIELD (ROTOR)

STATOR

3 ~

A

30F GTMXD SLD

1.0

Ttm - BatteryTELLTALE

RED2.

.2RED

0.5

SC2

2.

19.0RED

E 1/2

Ring TerminalA

B

30M GTMXD SLDB8

Gen Ring Term

M10

A

B

SF2

Case GndGND DIST

8.0

.2RED

BRN

.25

0.8

25

Beta Agustin Velazquez GMT5600Starting & Charging (LF6)GMT560 X08

Wednesday, April 19, 2006

1:41:30 pm

$IVEDWORK/h83030c__001s ch em ati c s he et 1

h83030c5

001

.BRN

0.5

2

(Page 1)

START

GEN_G

L_TERM_TTM

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G

E

D-160

Cruise Control (L18) 8.1L V8 GMPT VORTEC® - Gas –

(LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel

10A

Uh - Eng 4POWER DIST

CRUISE_P639

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83034a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

LMM LMM

010-1034-1

PAGE 8A-

HORN 040-1

110-1KEYMNDR 114-3

STEERING COLUMN

WIPER 091-1BEAMSW 100-1

047-2SIR

-100

Panel Set: 1

-100

TRNHZ

GRA/BLK87.

0.5

26062266IGNSWCRUISE

L18L18L18LMM

B5

PcmENGINE CNTLS ELEC THROTTLE CNTL

30M GTMXD SLDB4

.87GRA/BLK0.8

Resume/Accel

0.8GRA/BLK87.

ENGINE CNTLSPcm

0.5

.87GRA/BLK

0.5

UPFITTER PROVTap Down Sw

B5

.84BLU DK

A15

30F GTMXD SLDB9

SA84

Str Col Asm - Cruise Cntl Sw

O N

O F F

R E S U M E / A C C E L

N E U T R A L

S E T / C O A S T

O N / O F F

A12

CRUISE ENABLE

A13

IGN1

A14

Tap Up SwUPFITTER PROV

.84BLU DK0.8

Diode

A

B

Diode

A

B

8784BLU DK0.5

.GRA

397.

0.5GRA/BLK0.5

.

00112

h83034asheet1schematic $IVEDWORK/h83034a__001

1:42:36 pm

Wednesday, April 19, 200608 XGMT560

Cruise Control (L18/LMM)B GMT560Agustin VelazquezPilot

1

On/OffELEC THROTTLE CNTL

30M GTMXD SLDB9

0.5GRA.397

0.5BLU DK

84.

Set/Coast

30F GTMXD SLD B4

84.

0.8BLU DK

ELEC THROTTLE CNTL

.

0.5GRA

397

SA87

2663 RES_ACCEL

PcmENGINE CNTLS

RES_ACCEL_D RES_ACCEL_A ON_OFF_D ON_OFF_ASET_COAST_ASET_COAST_D

2664 SET_COAST

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G

E

D-161

Cruise Control (LF8) 7.8L L6 Isuzu 6H - Diesel

A13

POWER DISTUh - Eng4

10A

639 CRUISE_P

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83034b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 1

-100-100

26062266

CRUISE010-1034-1

IGNSWPAGE 8A-

HORN 040-1SIR 047-2

TRNHZ

CRUISE ENABLE

A12

IGN1

A14 A15

110-1KEYMNDR 114-3

STEERING COLUMN

WIPER 091-1BEAMSW 100-1

B5

O N / O F F

S E T / C O A S T

N E U T R A L

R E S U M E / A C C E L

O F F

O N

Str Col Asm - Cruise Cntl Sw

30F GTMXD SLDB9B5

30M GTMXD SLDB9

30F GTMXD SLDB4

BLU DK84.

0.8GRA

397..87GRA/BLK0.80.8

EcuEcuL6 ENGINE CNTLS L6 ENGINE CNTLS

EcuL6 ENGINE CNTLS

0.8BLU DK

.84BLU DK0.8

Diode

A

B

84.

Diode

A

B

.87GRA/BLK0.8

84

BLU DK0.5

.

SA87

UPFITTER PROVTap Up Sw

UPFITTER PROVTap Down Sw

GRA/BLK0.5

.87

30M GTMXD SLDB4

SA84

0.8GRA/BLK87.

0014

h83034bsheet1schematic $IVEDWORK/h83034b__001

1:42:55 pm

Wednesday, April 19, 200608 XGMT560

Cruise Control (LF8)0 GMT560Agustin VelazquezBeta

1

GRA

397.

0.5

2663 RES_ACCEL2664 SET_COAST

RES_ACCEL_BSET_COAST_B ON_OFF_B

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G

E

D-162

Cruise Control (LF6) 7.2L L6 Caterpillar ® C7 - Diesel

EcuENGINE CNTLSENGINE CNTLS

EcuENGINE CNTLS

Ecu

S ET_ COA ST _C R ES _A CC EL _C ON _OF F_ C

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83034c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

110-1KEYMNDR 114-3

STEERING COLUMN

WIPER 091-1BEAMSW 100-1

Panel Set: 1

26062266IGNSWCRUISE

010-1034-1

PAGE 8A-

HORN 040-1SIR 047-2

TRNHZ

BLU DK84.

0.8 0.8

.87GRA/BLK

GND

A13

A14 A15

30F GTMXD SLDB9

Str Col Asm - Cruise Cntl Sw

O N

O F F

R E S U M E / A C C E L

N E U T R A L

S E T / C O A S T

O N / O F F

A12

CRUISE ENABLE

Agustin VelazquezPilot1 Wednesday, April 19, 2006

B5

30M GTMXD SLDB9

0014

h83034csheet1schematic $IVEDWORK/h83034c__001

1:43:17 pm

08 XGMT560

Cruise Control (LF6)0 GMT560

B4

GRA397.

0.8

.87GRA/BLK

B4

0.8

GRA397.

0.8

ENGINE CNTLS

B5

0.8

.84BLU DK

Ecu

451 CRUISE_PPS

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G

E

D-163

Batteries - Top Post (L18) 8.1L V8 GMPT VORTEC® - Gas

.

32.0BLK

2653Iso Pos Term A

A

Pos Term 1A

B

ISO_AUX

(Page 2)

2

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83035a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

+

-

+

-

Isolator No Isolator IsolatorNo Isolator

Family 2Family 3

See Page 2 for Bat to Bat cable properties

Aux Batt (&VNF)

Panel Set: 1

(-VNF)

15761789 - TNQ/TNN15761790 - TNL

NOTE:Optional Batteries:

-VNF

2.0RED

2.

5.0RED

2.

SE2

Batt Pos Jct Post

A

B

Bat Jct2 Term

M10A

B

1RED

32.0

.

M6

Uh Ring Term

Iso Pos Term P

AB

Uh - Pwr BusPOWER DIST

RED2.

50.0

62.0

.50

50.0

.2653BLK

Prim Batt 1

BLK

30F GTMXD SLDD2

5.0

.2RED

Bat Jct3 Term

M10A

B

HYDRO BRAKESHydro Rly

0013

h83035asheet1schematic $IVEDWORK/h83035a__001

1:43:36 pm

Wednesday, April 19, 200608 XGMT560

Batteries (L18 Top Post)0 GMT560Agustin VelazquezProd

1

Neg Term 1

A

B

STARTINGStarter (Generator)

GND DISTGnd Zone #B

Bat Jct1 Term

M10

A

B

.

19.0

M8

Start Ring Term 2A

B

A

B

B

RED1

M6

Uh2 Ring Term

Prim Batt 2

30M GTMXD SLDD2

Maxi - Pwr BusPOWER DIST

2(Page 2)

ISO_PRIME

BATTNEG_G HYMAX_PSTART MAXICTR_P UHDIST_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G

E

D-164

Batteries - Top Post (L18) 8.1L V8 GMPT VORTEC® - Gas (continued)

Isolator Jct Post30M GTMXD SLD

C10

Ip1 - Aux Wire Rly15A

POWER DIST

BRN641.

1.0

1.0

.641BRN

C10

GeneratorsCHARGING

30F GTMXD SLD

BAT_ISO_P

ISO_POST

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83035a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

B

Bat to Bat cable properties

Panel Set: 2

Bat TerminalA

B

Bat Terminal

A

2

19.0

.

A

B

SD2

RED

SG2

RED2.8.0

M8

Iso Term Abat

BLK2653.

Iso Term AA

B

08 XGMT560

Batteries (L18 Top Post)0 GMT560Agustin VelazquezProd

2

32.0

SH2

0013

h83035asheet1schematic $IVEDWORK/h83035a__001

1:43:36 pm

Wednesday, April 19, 2006

2F GT280 SLDA

Battery Isolator

A

ABAT

E

PBAT

SJ2

8.0

Iso Term Pbat

M8A

B

RED.

19.0

2

.2RED

1.0

M8

Iso Term EA

B

2M GT280 SLDA

BRN641.

REDRED.

19.0

2 2

19.0

.

M10

Iso Term Jct 1

A

B

B

Bat Terminal

A

B

BLK50

Bat TerminalA

.50RED

1.

50

ISO_AUX

(Page 1) (Page 1)

ISO_PRIME

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G

E

D-165

Batteries - Side Post (L18) 8.1L V8 GMPT VORTEC® - Gas

2653BLK

32.0

.

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83035g

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

+

-

Family 2

19001810 - TM119001814 - TM2

Optional Batteries:NOTE:

Panel Set: 1

Bat Jct3 Term

A

B

Hydro RlyHYDRO BRAKES

Family 3

SE2

POWER DISTMaxi - Pwr Bus

M10

5.0

.2RED

2.0

.1RED

.2RED

BLK2653.

50.0

19.0

Start Ring Term 2

M8

A

B

BLK50.

62.0

GND DISTGnd Zone #B

Neg Term 1

A

B

RED

M10

Bat Jct1 TermA

B

Prim Batt

POS

NEG

Batt Pos Jct Post

JCT1

JCT2

50.0

.2

30M GTMXD SLDD2

Starter (Generator)STARTING

B

Prod Agustin Velazquez GMT5600Batteries (L18 Side Post)GMT560 X08

Wednesday, April 19, 2006

1:45:43 pm

$IVEDWORK/h83035g__001s ch ema tic s he et 1

h83035g3

001

Pos Term 1A

POWER DISTUh - Pwr Bus

Uh2 Ring Term

M6

A

B

1

B

.

32.0RED

1

D2

M10

Bat Jct2 Term

A

B

Uh Ring Term

M6

A

RED2.

5.0

30F GTMXD SLD

MAXICTR_P UHDIST_P HYMAX_PSTARTBATTNEG_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G

E

D-166

Batteries – Bus (L18) 8.1L V8 GMPT VORTEC® - Gas

Optional Batteries:

&TNQ

15761789 - TNQ/TNN

NOTE:

15761790 - TNL

Pos Term 1A

B

A

50.0

.1RED RED

1.

32.0

T e r m 3

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83035e

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

+

-

+

-

&TNN/TNL

Panel Set: 1

.2RED

2.0

&TNN/TNL

&TNN/TNL

B

Start Ring Term 2

M8

A

B

62.0

.50BLK

Neg Term 1

ASL2

19.0

.1RED

8.0

.2

School Bus Fuse

SCHOOLBUS UPFIT

A B

Pos Term 2

A B

RED

Gnd Zone #BGND DIST

SM2 N e g T e r m 2

Bat Jct1 Term

M10

A

B

POS

NEG

Batt Pos Jct Post

JCT1

JCT2

POWER DISTUh - Pwr Bus

Prim Batt 2

POS

NEG

Prim Batt 1

Starter (Generator)

0013

h83035esheet1schematic $IVEDWORK/h83035e__001

1:45:03 pm

Wednesday, April 19, 200608 XGMT560

Batteries (L18 Bus)0 GMT560Agustin VelazquezProd

1

STARTING

P o s T

A B

.

32.0RED

1

D2

30M GTMXD SLDD2

RED2.

5.0

30F GTMXD SLD

M6

A

B

Hydro RlyHYDRO BRAKES

Uh Ring Term

M6

A

B

M10

Bat Jct2 Term

A

B

Uh2 Ring Term

POWER DISTMaxi - Pwr Bus

M10

Bat Jct3 Term

A

B

.2RED

5.0

SE2

19.0

.1RED

SCHOOL_P2

MAXICTR_P UHDIST_P HYMAX_P

START

BATTNEG_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G

E

D-167

2

Pos Term 3

A

B

2(Page 2)

ISO_AUX

Batteries (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83035d

+

-

+

-

+

-

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Isolator No Isolator IsolatorNo Isolator

&TNR#&TNN&VNF

Optional Batteries:

15761789 - TNN/TNR

NOTE:

Aux Batt (&VNF)(-VNF)

&TNR

Panel Set: 1

Bat Jct1 TermA

B

HYDRO BRAKESHydro Rly

30M GTMXD SLDD2

B

Iso Pos Term AA

B Iso Pos Term P

A

M10

Bat Jct3 Term

A

B

5.0RED

2.

A

B

Uh Ring Term

M6

A

B

SE2

Prim Batt 1

POS

NEG

M10

Bat Jct2 Term

POS

NEG

Neg Term 1

A

B

RED2.

50.0Pos Term 1

A

B

Prim Batt 2Prim Batt 3

POS

NEG

GND DIST

RED2.

62.0

D2

Gnd Zone #B

30F GTMXD SLD

Prod Agustin Velazquez GMT5600Batteries (LMM)GMT560 X08

Wednesday, April 19, 2006

1:44:42 pm

$IVEDWORK/h83035d__001s ch em ati c s he et1

h83035d3

001

Starter (Generator)STARTING

RED1

Maxi - Pwr BusPOWER DIST

1

Pos Term 2

AB

.

32.0

POWER DIST

.

19.0

1RED

5.0

.2RED

Uh - Pwr Bus

RED2.

2.0

M8

Start Ring Term 2A

B

Batt Pos Jct Post

JCT1

JCT2

62.0

.50BLK

M6

Ring Terminal

A

B

62.0

.2RED

HYMAX_PUHDIST_PMAXICTR_P

ISO_PRIME

(Page 2)2

BATTNEG_GSTART

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G

E

D-168

Batteries (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

BRN641.

1.0

30F GTMXD SLDC10

30M GTMXD SLDC10

Generators1.0

.641BRN

CHARGING

15A Ip1 - Aux Wire RlyPOWER DIST

Isolator Jct Post

POST

BAT_ISO_P

ISO_POST

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 2

.

19.0

2REDRED

Iso Term Jct 1

M10A

B

2

19.0

.

.

19.0

2RED

B

RED2.

M8

Iso Term Pbat

A

8.0

BRN

2M GT280 SLDA

1.0

.641

2F GT280 SLDA

SG2

B

2

19.0

.RED

Iso Term E

M8

AIso Term A

A

B

Battery Isolator

A

ABAT

E

PBAT

SJ2

Iso Term Abat

M8 A

B

8.0

.2RED

SH2

32.0

sheet1schematic $IVEDWORK/h83035d__001

1:44:42 pm

Wednesday, April 19, 200608 XGMT560

Batteries (LMM)0 GMT560Agustin VelazquezX

2

.2653BLK

SD2

0013

h83035d

ISO_PRIME

(Page 1)(Page 1)

ISO_AUX

h83035d

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G

E

D-169

Batteries - Bus (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel

Pos Term 3

A

B1

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83035f

+

-

+

-

+

-

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

POS

NEG

&TNR

&TNN

&TNR

&TNR

Panel Set: 1

Optional Batteries:

15761789 - TNN/TNR

NOTE:5.0

Prim Batt 1

A B

.2RED

M10A

B

Prim Batt 2

POS

NEG

Pos Term 2

SM2

Ring Terminal

M6A

B

SL2

Bat Jct3 Term

SCHOOLBUS UPFIT

Pos Term 4

A B

A

B

50.0

.1RED

School Bus Fuse

RED1.

62.0

Pos Term 1

A

B

2.

8.0RED

NEG

0013

h83035fsheet1schematic $IVEDWORK/h83035f__001

1:45:22 pm

Wednesday, April 19, 200608 XGMT560

Batteries (LMM Bus)0 GMT560Agustin VelazquezMule

1

Bat Jct1 Term

Prim Batt 3

POS

Hydro RlyHYDRO BRAKES

RED1.

19.0

D2

30M GTMXD SLDD2

RED2.

5.0

30F GTMXD SLD

.2RED

2.0

SE2

Bat Jct2 Term

M10A

B

32.0

.

POWER DISTUh - Pwr Bus

POWER DISTMaxi - Pwr Bus

1REDRED

1

19.0

.1.

62.0

Start Ring Term 2

M8

A

B

Starter (Generator)GND DIST

Gnd Zone #B

RED

M6

Uh Ring TermA

B

STARTING

Neg Term 1

A

B

JCT2

BLK50.

62.0

Batt Pos Jct Post

JCT1

HYMAX_PUHDIST_PMAXICTR_P

STARTBATTNEG_G 2 SCHOOL_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G

E

D-170

Batteries (LF8) 7.8L L6 Isuzu 6H - Diesel

Pos Term 1A

B

2653 BLK

A

50.0

.

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83035b

+

-

+

-

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

+

-

Agustin VelazquezProd1

15761789 - TNN/TNR

15761790 - TNL/TPL

Panel Set: 1

Optional Batteries:NOTE:

&TNR/TPL

&TNR/TPL

STARTINGStarter (Generator)

0013

h83035bsheet1schematic $IVEDWORK/h83035b__001

1:44:02 pm

Wednesday, April 19, 200608 XGMT560

Batteries (LF8)0 GMT560

.2

RED2.

2.0

Prim Batt 2

POS

NEG

RED5.0

Prim Batt 3

POS

NEG

B

62.0

.2653BLK

BPos Term 2

A B

Neg Term 1

A

Bat Jct1 TermA

GND DISTGnd Zone #B

RED2.0

.2RED

5.0

19.0

.1SE2

.2

B

30M GTMXD SLDD2

RED

30F GTMXD SLDD2

Bat Jct3 Term

M10A M10A

B

BLK2653.

62.0

A

B

HYDRO BRAKESHydromax Rly

Bat Jct2 Term

Uh - Pwr BusPOWER DIST

M6

Uh Ring Term

RED1

RED2.

5.0

JCT1

JCT2Prim Batt 1

POS

NEG

.

32.0

Pos Term 3B

Batt Pos Jct Post

ENG CNTLS

SB2

Glow Plug Rly

M10

Start Ring Term 2A

B

Ring Terminal

A

B

Maxi - Pwr BusPOWER DIST

GLO_RLY

62.0

.50BLK

HYMAX_PUHDIST_PMAXICTR_PBATTNEG_G

START

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G

E

D-171

Batteries (LF6) 7.2L L6 Caterpillar ® C7 - Diesel

Optional Batteries:NOTE:

15761789 - TNN/TNR

15761790 - TNL/TPL Pos Term 1A

B

50.0

.2653 BLK

A

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83035c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

+

-

+

-

+

-

A

B

&TNR/TPL

&TNR/TPL

Panel Set: 1

103.0

Start Ring Term 2

E 1/2

GMT5600Batteries (LF6)GMT560 X08

Wednesday, April 19, 2006

1:44:25 pm

$IVEDWORK/h83035c__001s ch em ati c s he et1

h83035c3

001

BLK2653.

SE2

5.0

.2RED

1

Prod Agustin V elazquez

2.0RED

2.

Uh - Pwr Bus

5.0RED

2.

D2

Maxi - Pwr BusPOWER DIST POWER DIST

30M GTMXD SLDD2

30F GTMXD SLD

ENG CNTLSAir Intake Htr Rly

Bat Jct2 Term

M10A

B

Pos Term 2

A B

A

B

1RED

32.0

.

Bat Jct1 Term

A

B

1.

19.0RED

Uh Ring Term

M6

A

B

M10

Bat Jct3 Term

13.0

.2

5.0

.2RED

Prim Batt 3

POS

NEG

Pos Term 3A

B

RED

.2653BLK

Prim Batt 2

POS

NEG

SB2

103.0

Prim Batt 1

POS

NEG

Batt Pos Jct Post

GND DISTGnd Zone #B

50BLK

Neg Term 1

A

B

B

Starter (Generator)STARTING

62.0

.

Hydromax RlyHYDRO BRAKES

Ring Terminal

A

UHDIST_P HYMAX_P HTR_P

START

BATTNEG_G MAXICTR_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G

E

D-172

2-Speed Rear Axle (L18) 8.1L V8 GMPT VORTEC® - Gas –

(LF8) 7.8L L6 Isuzu 6H - Diesel

&HPZ&MWF/LCT

C1

SA1467

30M GTMXD SLD

1467.

0.8

.1467

GRA/BLKGRA/BLK0.8

Pcm/EcuENG CNTLS

20A

Ip1 - Axle/4wdPOWER DIST

B1240M GTMXD SLD

SC241

1467 2SP_AXLE 2SP_RLY_P241

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83037a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

1467.

0.8GRA/BLK

&HPZ&MWW/MWX

Panel Set: 1

&HR1/HR2 &HPZ

0.5

.1467GRA/BLK

GRA/BLK1467.

0.8

GRA/BLK1467.

0.8

2.0

.1466GRN LT

Uh - Eng 1

10A

Gnd Zone #7AGND DIST

POWER DIST

GRA/BLK1467.

0.8

30F GTMXD SLDB8

BRN241.

2.0

GND DISTGnd Zone #3D

0.8

GND DISTGnd Zone #2B

BLK250.

Sw IllumINTERIOR LIGHTING

DYN BRAKE

M

2 Speed Axle Motor

A

B

C

0.5

.1467GRA/BLKGRA/BLK

1467.

0.5

GRA/BLK1467.

0.5

SB1467

1

Beta Agustin Ve lazquez GMT56002 Speed Axle (L18/LF8)GMT560 X08

Wednesday, April 19, 2006

1:46:06 pm

$IVEDWORK/h83037a__001sc he mat ic s he et 1

h83037a8

001

2.0

.241BRN

D

6M GT280 SLDF

6F GT280 SLDD

6M GT280 SLD

4F MP280 SLDA

BLU LT1469.

2.0

2 Speed Axle Rly

30

85

86

87 87A

GRA/BLK

16F GT280 SLDP

GRA/BLK1467.

0.8

0.8

.1467

GND

A

GND

B

C

SW

D

LED

LAMP

E F

GND

30F GTMXD SLDC1

2 Spd Elec Auto Sw

0.8

0.8

.1467GRA/BLK

GRA/BLK1467.

0.5

.239PNK

0.8

.1467GRA/BLK

16M GT280 SLDP

30M GTMXD SLDB8

Gnd Zone #7AGND DIST

0.8

.1467GRA/BLK

6F GT280 SLDF

1467.

0.5

OPEN=LOW

2 Speed Axle Sw

A

B

4M MP280 SLDA

GRA/BLK

B15

BLK0.8

.250

30M GTMXDB15

30F GTMXD

8F GT280 SLDA

30F GTMXDB14

30M GTMXDB14

8M GT280 SLDA

40F GTMXD SLDB12

(Page 2)

AIR

2SP_LP2509

350 2SP_MTR_G

2SP_SW_G

2SP_LP_G750 2SP_SW1_G750

239 2SP_LED_P

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G

E

D-173

2-Speed Rear Axle (L18) 8.1L V8 GMPT VORTEC® - Gas –

(LF8) 7.8L L6 Isuzu 6H - Diesel (continued)

C

(Page 1)

AIR1467

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83037a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 2

30M GTMXD SLDC10

D

2 Spd Axle PSI SwOPEN = LOW

CLOSES ABOVE 5 PSI

F

16M GT280 SLDF

16F GT280 SLD

BLK250.

0.8

8F GT280 SLDF

0.8

.250BLK

30F GTMXD SLDC10

Gnd Zone #2B

0.8

.250BLK

LF8 GND DIST

4M MP280 SLDD

0.8

8M GT280 SLDF

BLK250.

BLK0.8

.250

4F MP280 SLDD

GMT560Agustin VelazquezBeta2

0018

h83037asheet1schematic $IVEDWORK/h83037a__001

1:46:06 pm

Wednesday, April 19, 200608 XGMT560

2 Speed Axle (L18/LF8)0

0.8

.250BLK

250 2SP_PSI_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G

E

D-174

2-Speed Axle (LF6) 7.2L L6 Caterpillar ® C7 - Diesel

&HPZ&MWF/LCT

&HPZ&MWW/MWX

20A

Ip1 - Axle/4wdPOWER DIST

40M GTMXD SLDB12

ENG CNTLSEcu

SC241SA1467

0 8

.1467GRA/BLK

40F GTMXD SLDB12

BRN241.

2.0

GRA/BLK0.8

.1467

2.0

.241BRN

2SP_AXLE1467 2SP_RLY_P241

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83037c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

&HPZ&HR1/HR2

Panel Set: 1

0.8

.451BLK/WHT

GND DISTGnd Zone #3D

.1467GRA/BLK

INTERIOR LIGHTINGSw Illum

0.8

.1467GRA/BLK

0.8

1467.

0.5

0.5

.1467GRA/BLK

6F GT280 SLDD

GRA/BLK

1467.

0.5

4M MP280 SLDA

GRA/BLK

30F GTMXDB15

PNK239.

0.5

0.8

.1467GRA/BLK

GND DISTGnd Zone #7A

2 Speed Axle Sw

OPEN=LOW

A

B

B15

GRA/BLK0.8

.1467

2 Speed Axle Rly

30

85

86

87 87A

30M GTMXD

B8

250.

0.8BLK

.1467GRA/BLK

30M GTMXD SLD

GRA/BLK1467.

0.8

0.8

8M GT280 SLDA

8F GT280 SLDA

30F GTMXD SLDB8

A

30M GTMXDB14

4F MP280 SLD

1467.

0.8

30F GTMXDB14

GND

SW

C

LED

D

E

LAMP GND

F

GRA/BLKBLU LT

2 Spd Elec Auto Sw

A

GND

B

GRN LT

1466.

2.0

2.0

.1469

6M GT280 SLDF

SB1467

D

6F GT280 SLDF

.1467GRA/BLK

6M GT280 SLD

0.8

0.5

0.8

40F GTMXD SLD

GRA/BLK GRA/BLK1467.

2 Speed Axle Motor

M

DYN BRAKE

A

B

C

0.8

.1467

Prod1

2.0

0013

h83037csheet1schematic $IVEDWORK/h83037c__001

1:46:25 pm

Wednesday, April 19, 200608 XGMT560

2 Speed Axle (LF6)0 GMT560Agustin Velazquez

ENGINE CNTLSEcu

2.0

ENGINE CNTLSEcu

16M GT280 SLDP

16F GT280 SLDP

POWER DISTUh - Eng 1

10A

2SP_E_PPS

239 2SP_LED_P

2509 2SP_LP

AIR

(Page 2)

350 2SP_MTR_G

750 2SP_LP_G 750 2SP_SW1_PPS

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G

E

D-175

2-Speed Axle (LF6) 7.2L L6 Caterpillar ® C7 - Diesel

D

2 Spd Axle PSI SwOPEN = LOW

CLOSES ABOVE 5 PSI

C

1467

AIR

(Page 1)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83037c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 2

16M GT280 SLDF

D

BLK250.

0.8

4F MP280 SLDD

4M MP280 SLD

8F GT280 SLDF

16F GT280 SLDF

0.8

.250BLK

s ch em ati c s he et1

h83037c3

0012

Prod Agustin Velazquez GMT56002 Speed Axle (LF6)GMT560 X08

Wednesday, April 19, 2006

1:46:25 pm

$IVEDWORK/h83037c__001

D

ENGINE CNTLSEcu

0.8

.250BLK

C10

30M GTMXD SLDC10

30F GTMXD SLD

250.

0.8BLK

250.

0.8BLK

F

BLK250.

0.8

8M GT280 SLD

451 2SP_A_PPS

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-177

Active Transfer Case (continued)

E U T

5 6 0

1 1 5 0

N E U T R A L

7 1 5

2 H I

4 H I

4 L O

3 1 6 0 H

Sw Asm-Trfer Case Set

BC

Back LightingDIMMING CNTL

0.8BRN

241.

SA241

.241BRN

0.8

Park 20AFROM POWER DIST

ATCSWP241

230 ATCBLT

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83038a

N E

9090

L I G H T

B A C K

SHUNT

4 L O

2 H I

4 H I

SPARE 1

OUTPUT

SPARE 2

OUTPUT

FSS HIRRSS LO

4L LAMP

ANALOG 1AXLE SWT

NEUTRAL LAMP

AXLE CNTL

2H LAMP

ANALOG 2

IN

AFWD LAMP

+5V DC REG

GROUND

RRSS HI

INPUTSPARE 1

FSS LO

FRONT

MODE SELECT

FRONTELECTRONICS GND

REDUNDANT

1K

ELECTRONICS

4H LAMP

INSPARE 2INPUT

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 2

GJM AD EF

.1563GRN LT/BLK0.35

GND DISTGnd Zone #7a

0.35GRA

596.

Gnd Zone #4aGND DIST

0.35PPL/WHT

1565.

.1560BRN

0.5

.1566TAN/BLK

0.35

00112

h83038asheet1schematic $IVEDWORK/h83038a__001

1:46:50 pm

Wednesday, April 19, 200608 XGMT560

Active Transfer CaseGMT560Agustin VelazquezPROD

2

.1693BLU LT

0.35

J3-

J2-B2

J2-B3J2-B4 J2-B5J2-B6 J2-B7

J2-B8

J1-B8

J2-A1J2-A2

J2-A5

J2-B1 J1-B3 J1-B4

J1-

J1-B7

J2-

J1-A4J1-A5J1-A6

J1-A8

Module Asm-4WD ATC

J1-A2

J1-A3

751 ACT_4WDG

2250 4WDSWG

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-178

Horn

12088567

3086

8785

HORN RELAY

Family 2

has FuseFamily 2

has Fuse20A

Uh - HornPOWER DIST POWER DIST

Uh - Horn

20A

Horn

C1 C3

HORN_RLY_P740 740 HORN_P

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83040a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

12G

Dual Horns25695574

26062266IGNSW

12052644

A

485 Hz

B

405 Hz

0030A

TRNHZ 110-1

CRUISE010-1034-1

PAGE 8A-

HORN 040-1

KEYMNDR 114-3

STEERING COLUMN

WIPER

30F GTMXD SLDC9

&U08-U08

SIR 047-2

100-1BEAMSW

Panel Set: 1

091-1

B10

GND DISTGnd Zone #3B

C9

30M GTMXD SLDC9

30F GTMXD SLD

.28BLK

30F GTMXD SLD

0.5

.28BLK

0.8

GRN DK29.

30M GTMXD SLDB100.8

.28BLK

1.0

SA28

0.5

.28BLK

Str Col Asm - Horn Sw

A11

C2

GND DISTGnd Zone #7A

B15

30M GTMXDB15

28

0.5BLK.

30F GTMXD

Rfa Module

.BLK

0.5

28 28

0.5BLK.

RKE

A

B

D1D3

1

GRN DK29.

1.0

Horn

30M GTMXD SLDC9

0014

h83040asheet1schematic $IVEDWORK/h83040a__001

1:47:12 pm

Wednesday, April 19, 200608 XGMT560

Horn0 GMT560Agustin VelazquezBeta

750 HORN_SW_GHORN_CHIRP 350 HORN_A_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-179 Brakes - Hydraulic (C4500-C7500)

has Fuse

Family 2Family 2

has Fuse

POWER DISTIp1 - Start

10A

RED442.

3.0

POWER DIST

.2769BLU DK

Uh - Abs3

40A

BLU DK2769.

0.5

40F GTMXD SLDB1

Ttm - Auxillary BrakeTELL TALE

40M GTMXD SLD

B1

40A

POWER DISTUh - Abs1

POWER DIST

40A

Uh - Abs2

POWER DIST

15A

Ip1 - Pcm-I

EBC_CRANK_P806 EBC_IGN1_P439

AUX_ABS

EBC_P

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83044b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 1

43

DIAG K

8 9

CRANK

CLASS 2

39

LEVELSWITCH

41

FLUID

PUMP MTR

42

DRIVERPWR 1PWR 2

DRIVERPUMP MTR

HIWSSRF

LOW

31

GND A

29

HI

LFWSS

3

RFWSS

30

LF

LOW

2

20

AUXBRAKE

12

IGN 1

PWRDRIVER

15

MAIN VALVE

WSS

EBC

GND B

1

WHT1909.

0.8

Brake Fluid Level Switch

A

B

0.8BLU DK

0.8

.1903GRN LT

Wednesday, April 19, 2006

1:48:47 pm

$IVEDWORK/h83044b__001schematic sheet1

h83044b15

0011

Prod Agust in Velazquez GMT5600Hydraulic Brakes (C4/5/6/7)GMT560 X08

.1910BRN/WHT0.8

Gnd Zone #1AGND DIST

B

Lf Wheel

A B

Rf Wheel

A

Gnd Zone #1AGND DIST

ORN1904.

0.8

SERIAL DATA LINKStar Conn

PPL

GND DIST

Gnd Zone #3A

0.8

.333

FLS_G351

HYDRO_CL21122

42 EBC2_P HYD_EBC_P1642

151 HYD_A_G

HYD_B_G151

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-180 Brakes - Hydraulic (C4500-C7500) (continued)

Family 2

has Fuse

BATTERIESUh Dist Center (B+)

FL

30

85

86

87

Hydromax Rly

SA1928

POWER DISTIp1 - Chassis

10A

0.8

.1928BLU LT/BLKTraction Cntrl Switch

W T

R A C T I O N

D I S A B L E

DE

ILLUM

.

5.0ORN

1470

Headlamp IllumINTERIOR LIGHTING

SA1470

TCS_LP2509 HYMAX_P2541 TCS_SW_P

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83044b

M

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 2

BRN/WHT1571.

0.8

A

B

10A

Brk Bst Fuse

38

LAMPFUNCTION

TCS

40

SWCNTRL

TRACTIONWARNING RLY

HYMAX

28

SWBRAKE

22

HYMAX

LAMP

25

TCSMTR

FEEDBACK

10

HYMAXSWITCHBRAKE

14

EBC

0.8

.832BLU LT

A6

J2-A

HYDROMAXMOTOR

CASE

J2-B

Hydro Max Assembly

J1-A

J1-B0.5

.1808

WHT0.5

5.0

.1470ORN

BRN/WHT

1571.

BLU LT/BLK1928.

0.8

ORN1470.

5.0

C2

Gnd Zone #7AGND DIST

0.5

.1571BRN/WHT

Gnd Zone #1BGND DIST

A4

C2

30F GTMXD

A5

F

L O W

A BC

C3

0.8

.1928BLU LT/BLK

30M GTMXDA4

TAN2660.

0.8

WHT1808.

0.8

C1

WHT1808.

0.5

40M GTMXD SLD

BLU LT832.

0.5

A6

C3

2

Prod Agustin Velazquez GMT5600Hydraulic Brakes (C4/5/6/7)GMT560 X08

Wednesday, April 19, 2006

1:48:47 pm

$IVEDWORK/h83044b__001s ch em ati c s he et 1

h83044b15

001

.832

BLU LT0.5

GND DISTGnd Zone #1A

40F GTMXD SLD C1

A5

0.8

.2674GRN LT

17(Page 4)

BRK_SWA-B

HYMAX2_G151

150 HYMAX1_G

TCS_G750

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-181 Brakes - Hydraulic (C4500-C7500) (continued)

RRWSSLOW

WSSRR

HI

LRWSS

HIWSSLR

LOW ACTIVEABS

FRONTPAD WEAR

IND

26

PAD WEARREAR

23

IND

HYDROBOOST

19

EBC

Hydro Ebc

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83044b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 3

G

.1911BLU DK/WHT

8F GT280 SLD

BLU DK/WHT1911.

0.8

0.8

GRN DK/WHT

GRN DK/WHT1912.

0.8

0.8

.1912

0.8

.1916GRN LT/BLK

1917.

0.8

56

BLU LT/WHT

33 34 36

8F GT280 SLDC

BLU DK/WHT1911.

0.8

.1912GRN DK/WHT

8M GT280 SLDH

.1911BLU DK/WHT

0.8

8M GT280 SLD G

0.8

H8F GT280 SLD

0.8

.1912GRN DK/WHT

GRN DK/WHT1912.

0.8

A B

8F GT280 SLDH

Lr Wheel

3

00115

h83044bsheet1schematic $IVEDWORK/h83044b__001

1:48:47 pm

Wednesday, April 19, 200608 XGMT560

Hydraulic Brakes (C4/5/6/7)0 GMT560Agustin VelazquezProd

C

.

0.8

8M GT280 SLD

GRN DK/WHT1912.

0.8

BLU DK/WHT1911

H

0.8

.1911BLU DK/WHT

8M GT280 SLD

Rr Wheel

A B

8F GT280 SLDG

8M GT280 SLDG

E

E

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-182 Brakes - Hydraulic (C4500-C7500) (continued)

Family 2

has Fuse

has Fuse

Family 2

Ip1 - Brake

10A

POWER DIST

40M GTMXD SLDB11

40F GTMXD SLD B1120A

Ip1 - Stop

POWER DIST

CAT ENGINE CNTLSEcu

86BRN

0.8

.

NC_CONT441 TCC_P

BRK SW PS

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83044b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Brake Switch

-

+

See Page 6 for Brake Switches

Panel Set: 4

x2x2 x2 x2

30M GTMXDB7

D

V8 ENG CNTLSPcm

0.5PPL

420.

1.0

1:48:47 pm

$IVEDWORK/h83044b__001s ch em ati c s he et 1

h83044b15

001

EXTERIOR LIGHTStop Lamps

.17WHT

B13

4

Prod Agustin Velazquez GMT5600Hydraulic Brakes (C4/5/6/7)GMT560 X08

Wednesday, April 19, 2006

B8

E

.140ORN

F

1.0

C

WHT17.

1.0WHT

17.

1.0

SA17

0.8

.451BLK/WHT

0.5PPL

420.

B6

WHT1.0

.17

POWER DISTIp2 - Brake Iso

DA

C

2.0WHT

17.

LF8 ENG CNTLS

30M GTMXD SLDB8

1.0

Ecu

30F GTMXD SLDB8

.140ORN

B5

B

B5

BRN86.

0.8

6F GT280

30F GTMXDB7

40M GTMXD SLDC7

1.0

.17WHT

B13

6M GT280B

B8

CAT ENGINE CNTLSEcu

BRN441.

0.5

A

F

E

40F GTMXD SLD

C7

B14

86.

0.8BRN

B6

PPL420.

0.5

B14

BRAKE_SW1

(Page 6)

BS_17

17420

BS_420

(Page 6)86

BS_86

(Page 6)

TCC_ECU 420 TCC_PCM

140

BS_140

(Page 6)441

BS_441

(Page 6) (Page 6)

BS_451

451

BRAKE_ISO_P

BRK_SW_P

(Page 2)

BRK_SWA-B

451 BR_SW_PPS

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E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-184 Brakes - Hydraulic (C4500-C7500) (continued)

BS_441 BS_140 BS_441BS_140 BS_451

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83044b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

C4 ModelsC5/6/7 ModelsNote: Only contacts A & B are p olarized.

Panel Set: 6

Note: Only contacts E & F are polarized.

1.0ORN

140.

6

Prod Agustin Velazquez GMT5600Hydraulic Brakes (C4/5/6/7)GMT560 X08

Wednesday, April 19, 2006

1:48:47 pm

$IVEDWORK/h83044b__001s ch em ati c s he et1

h83044b15

001

PPL0.5

.420 .420PPL

0.5

D

E

F

.17WHT

1.0

Brake Switch - 3.1:1

-

A

+

B

C

0.8

.451BLK/WHT

1.0WHT

17.

.441BRN

0.5BRN

441.

0.5

BRN86.

0.8

C

D

E

+

F

-

Brake Switch - 6.5:1

A

B

140.

1.0ORN

BS_420

(Page 4)(Page 4)

BS_17

(Page 4)

BS_86 BS_17

(Page 4)

(Page 4) (Page 4) (Page 4)

(Page 4)

BS_420

(Page 4) (Page 4)

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-185 Brakes - Air (C7500-C8500)

Lf Tcs Modulator

A BC

.

1.0

1906PPL

1.0

.1901GRAGRN DK

1900.

1.0

Rf Tcs Modulator

A BC

1.0TAN

1908..

1.0

1907YEL

.1902BLU LT1.0

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83044c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 1

0.8

.1912GRN DK/WHT

Rr Wheel

A B

0.8

BLK884.

.1917BLU LT/WHT

0.8

WSS

LOW

J3-4

AA LEFT

WSS

HI

J3-5

AA RIGHT

WSS

AA RIGHT

J3-6

LOW

AA LEFT

J3-3

HI

WSSWSS

J2-7

PMV

SA LEFTHOLD

J2-8

RELEASESA LEFT

PMV

HOLDSA RIGHT

PMV

J2-9

WSS

LOW

J2-2

DA LEFT

J2-3

DA RIGHT

WSS

HI

DA RIGHT

J2-4

LOW

J2-13J2-14

PMV

SA RIGHTCOMMON

WSS

J2-10

PMVSA RIGHTRELEASE COMMON

SA LEFTPMV

WSSLOW

J1-7

SA LEFTWSSLOW

J1-8

SA RIGHT DA LEFT

J2-1

HI

SA LEFT

J1-3

HIWSS

SA RIGHT

J1-4

HIWSS

EBC

L16F GT280 SLD

BLU DK/WHT1911.

0.8

M

Lf Wheel

A B

.1903GRN LT0.8

1910BRN/WHT

L Middle Wheel

A B

0.8

.

M

B

0.8

.885

Lr Wheel

A

GRN DK/WHT1912.

0.8

RED

16M GT280 SLDL

0.8WHT

1909.

Rf Wheel

A B A B

R Middle Wheel

GRN LT/BLK1916.

0.8 0.8

.882BRN

0.8WHT

883.1904.

0.8ORN

Air Brakes (C7/8)

1

Agustin Velazquez GMT5600GMT560 X08

Wednesday, April 19, 2006

1:50:11 pm

$IVEDWORK/h83044c__001s ch em ati c s he et1

h83044c11

001 Prod

.1911BLU DK/WHT

0.8

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A

G E

D-186 Brakes - Air (C7500-C8500) (continued)

40A Uh - Abs1POWER DIST

DE

ILLUM

F

Traction Cntrl Switch

L O W T

R A C T I O N

D I S A B L E

A BC

WHT1808.

0.5BLU LT832.

0.5

.1571BRN/WHT

Air Brake Relay30

85

86

87

J1939J1939

POWER DISTIp1 - Chassis10A

RED442.

3.0

SD441

10A Ip1 - BrakePOWER DIST

INTERIOR LIGHTINGHeadlamp Illum

Ttm - Trailer AbsTELL TALE

441.

0.8BRN

441 EBC_IGN3_P

AIR_J-2362

541 TCS_SW_P2509 TCS_LP

EBC_P

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83044c

J1939

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 2

0.5

.1808WHT

DataDLC

J3-1

TRACTIONOFF

LAMP

J3-12

TCSENGAGE/ DISABLE

J2-5

INPUTBRK SW

J1-6

IGN

J1-9

GND

J1-2

LOW

J1587-A

J1-5

HIABS

TRAILER

J1-11J1-13

LOWTRACTION

LAMP

J1-14

BATT

J1-15

EBC

J1-1

J1587-B

A5

A5 30M GTMXDA4

30F GTMXDA4

0.5

.832BLU LT

0.8

BRN/WHT1571.

0.5

471.

0.5

WHT

471.

WHT

11

001Air Brakes (C7/8)

2

Prod Agustin Velazquez GMT5600GMT560 X08

Wednesday, April 19, 2006

1:50:11 pm

$IVEDWORK/h83044c__001s ch ema ti c s he et 1

h83044c

0.5BLU LT0.5

A6

0.5

A6

Gnd Zone #7AGND DIST

Gnd Zone #1A

C7

GND DISTDLCData

40F GTMXD SLD

0.8

SA1808

0.8

.1571

.1808WHT

C1

C1

BRN/WHT

0.8

.420PPL

GND DISTGnd Zone #2B/C

.

3.0PPL

2661

40M GTMXD SLDC7

BRN0.8

.441

J1939J1939

C2

C2 C3

C3

A3

40M GTMXD SLDA3

40F GTMXD SLD

0.8WHT

1808.0.8

.832BLU LT

TCS_SW

(Page 2)

AIR_BRK_G250

ABS_MOD

1571(Page 2)

TCS_SW

1922 SERIAL_2 AIR_G151SERIAL_11921

2 36 1 A IR _J +

7 50 T CS _G

BRK_SWC-D

(Page 5)420

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E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A

G E

D-188 Brakes - Air (C7500-C8500) (continued)

POWER DIST

20A Ip1 - Stop

H 8M MP280

ORN140.

1.0

H8F MP280

CAT ENGINE CNTLSEcu

86BRN

0.8

.

1.0

.140ORN

SA140

ORN140.

1.0

(Page 5)

BRAKE_1420

BRK_SW_P

NC_CONT

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83044c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 4

Note: Only contacts E & F are polarized.

.140ORN

1.0

00111

h83044csheet1schematic $IVEDWORK/h83044c__001

1:50:11 pm

Wednesday, April 19, 200608 XGMT560

Air Brakes (C7/8)0 GMT560Agustin VelazquezProd

4

B8

EXTERIOR LIGHTStop Lamps

10A

POWER DISTIp1 - Brake

B5

40M GTMXD SLD B11

B5

.420PPL

0.5

D

B8

B13

8M MP280G

8F MP280G

30F GTMXDB7

Trailer Stop Sw

A

BBRN

86.

0.8

BRN86.

0.8

WHT17.

1.0

F

B6

B11

D

40F GTMXD SLD

+

F

-

WHT17.

1.0

B13

Brake Switch - 6.5:1

A

B

C

D

E

1.0

WHT17.

C

WHT17.

0.8

.451BLK/WHT

1.0

6M GT280B

BRN441.

0.5

B6

C

1.0

.17WHT

ORN140.

1.0

BRN441.

0.5

.140ORN

1.0

0.5PPL

420.

E

F

B14

E

BRN

A

0.8

.8617.

1.0WHT

B7B14

ORN

30M GTMXD

SA17

1.0

.140

BLK/WHT451.

0.8

6F GT280B

CAT ENGINE CNTLSEcu

Ip2 - Brake Iso

A

POWER DIST

.17WHT

1.0

BRAKE_ISO_PBRAKE_SW1

441 TCC_P

451 BR_SW_PPS

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A

G E

D-189 Brakes - Air (C7500-C8500) (continued)

POWER DISTIp1 - Chassis

BRAKE_1

(Page 4)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83044c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 5

SA420

L18 ENG CNTLSPcm

0.5

.541BRN

BRN

541.

0.8

420.

0.5PPL

40F GTMXD SLDA1

0.5PPL

420.

0.5PPL

420.

10A

30M GTMXD SLDB8

B8 30F GTMXD SLD

A1

Gnd Zone #3BGND DIST

40M GTMXD SLD

5

Prod Agustin Velazquez GMT5600Air Brakes (C7/8)GMT560 X08

Wednesday, April 19, 2006

1:50:11 pm

$IVEDWORK/h83044c__001s ch ema ti c s he et 1

h83044c11

001

PPL0.5

.420

Air Dryer Heater Sw

A

B

LF8 ENG CNTLS

PPL0.5

.420

Ecu

BRK_SWC-D

(Page 2)

350 AIR_DRY_G

420 TCC_PCM

AIR_DRY_P

TCC_ECU

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A

G E

D-190 Park Brake (Family 2)

-T62

IP CLUSTERPark Brake

BLU LT1134.

.1134BLU LT0.5

P_BRK

1134 PRK_BRK_SW

DRLDrl Module

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83046a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

LCT

Panel Set: 1

Gnd Zone #7AGND DIST

Park Brake Switch - Hydro

Orschelon Hand Brake

A

B

.750BLK

0.5

B

2M GT150B

2M GT150A

2F GT150

Case Gnd

2F GT150A

0.5 SA1134

GND DIST

0.5BLU LT

1134.

0.5

Park Brake Switch - Foot

A

CASE

BLU LT

1134.

BLK0.5

0.5BLU LT

1134.

Wednesday, April 19, 2006001

3

h83046asheet1schematic $IVEDWORK/h83046a__001

1:51:08 pm

08 XGMT560

Park Brake (Family 2)0 GMT560Agustin VelazquezProd

1

.750

P_BRK_G

FOOT_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A

G E

D-191 Park Brake (Family 3)

&JE4&JE3

SA1134

DRLDrl Module Park Brake

IP CLUSTER

.1134BLU LT0.5

P_BRK1134 PRK_BRK_SW

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83046b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

.1134BLU LT

Panel Set: 1

Park BrakeB GMT560Agustin VelazquezPilot

1

Park Brake Switch - Foot

A

CASE

0.5

Case GndGND DIST

Wednesday, April 19, 2006001

3

h83046bsheet1schematic $IVEDWORK/h83046b__001

1:51:26 pm

08 XGMT560

0.5BLK

750.

D

0.5BLK

750.

GND DISTGnd Zone #7A

Orschelon Hand Brake

Park Brake Switch - Hydro

A

B

Prk Brk Sw - Air

Closes at 5 psi

C

0.5

0.5BLK

750.

2F GT150A

BLU LT1134.

0.5

2M GT150A

0.5BLU LT

1134.

.1134BLU LT

2F GT150B

FOOT_G

P_BRK_G

2M GT150B

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A

G E

D-193SIR (continued)

Family 2

has Fuse

has FuseFamily 2

Dual SIRDriver only

has Fuse

Family 2

POWER DISTIp1 - Sir

10A

B C D

PSIR Defeat Switch

Ip1 - Sir

10A

Headlamp Sw - Radio DimmerINTERIOR LIGHTINGPOWER DIST

10A

Dimmer Signal DistINTERIOR LIGHTING

SIR_OHM_P1139

PSIR_DIM8

1382 STEP_DIM1 13 9 P SI R_ P

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83047a

ILLUM

OFF

ON

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

has FuseFamily 2

Page 2ΩΩ

Page 1

Panel Set: 2

24.7 k

SIR RESISTOR

Driver only Dual SIR

.353PNK

0.5

B3

.2260

0.5GRA

0.5

2260.GRA

J

1834.YEL

0013

h83047asheet1schematic $IVEDWORK/h83047a__001

1:52:03 pm

Wednesday, April 19, 200608 XGMT560

Sir0 GMT560Agustin VelazquezProd

2

10A

Ip1 - SirPOWER DIST

0.8

A7

40M GTMXD SLDA7

353.PNK

40F GTMXD SLD

A11

0.5

AE F

.371

0.5TAN/BLK

PSIR Defeat Switch

K

YEL0.5

1834.

16M GT280K

16F GT280

AB

371.

0.5TAN/BLK

WARN LAMPPRESENCE N.O./

PASSENGER

A9

SATELLITEDRIVER

B5

DRIVERSATELLITE

RTN

B6

Front Sensor

A10

SDM

Airbag ModuleIGN 1

A1

SENSOR

AUTOMATICOCCUPANCY

L

30F GTMXDA10

16F GT280S

B3

YEL.1834

0.5

371.TAN/BLK0.5

L

0.5

353.PNK

D

J

Sir Resist Pack - 4pt7 Kohm

4 .

7

k

Ω

C

16M GT280S

A11

30M GTMXDA10

PNK.353

Gnd Zone #7AGND DIST

0.5

.2260

0.8GRA

SDM_P1139

PSIR_G750

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A

G E

D-194 Rear Air Suspension

SA1944

.1944BLU DK0.8

0.8BLU DK

1944.

INTERIOR LIGHTING

10A

Ip1 - ChassisPOWER DIST

0.8

Headlamp Illum

30F GTMXD

A7

.1944

BLU DKA7

30M GTMXD

BD

LED Air Suspension Sw

A

12V ILLUM

AIR_SUSP_P541 AIR_SUSP_LP2509

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83052a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

.1944BLU DK

Panel Set: 1

8F GT280 SLDH

0.8BLU DK

1944.

0.8BLU DK

16F GT280 SLDH

0.8

.1944

8M GT280 SLDH

16M GT280 SLDH

BLU DK0.8

.1944

40F GTMXD SLDD6

Gnd Zone #7A

GND DIST

GND DISTGnd Zone #3D

GND DISTGnd Zone #7A

.1944BLU DK0.8

0.8BLU DK

B

40M GTMXD SLDD6

1944.

C

GND

EF

GND

Rear Air Solenoid

A

h83052asheet1schematic $IVEDWORK/h83052a__001

1:54:07 pm

Wednesday, April 19, 200608 XGMT560

Rear Air Suspension0 GMT560Agustin VelazquezProd

1

350 SUSP_SOL_G

750 SUSP_ILL_G

SUSP_LED_G750

0015

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A

G E

D-195 Data Link Connector

x3

GND DISTGnd Zone #4A

GND DIST

RKERfa Module

STARR CONNECTORClass 2

Gnd Zone #7A

J1587-BAIR BRAKES

SpliceDATA LINK CONN

DTCJ1708+

AIR BRAKESJ1587-A J1708-

DTC

GMLAN_126105

DATA_LOW

CAT_MD-

(P 2)1922

1451 DATA2_G

SERIAL_1SERIAL_2 DATA_HI

DATA1_G750

(Page 1)

DLC+

1921

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83050a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

x3

Panel Set: 1

N

has FuseFamily 2

C5

POWER DISTIp1 - Pwr Post

20A

WHT/BLK1922.

4 5 6 7 8

9

0.5

12 13 14 15 16

2 3

16f M/P 150 Data Link Conn.

1

10 11

0.5

.1922WHT/BLK

C5

SA1921

0.5

.1921TAN/BLK

WHT/BLK1922.

0.8

Splice

.1922WHT/BLK0.5

DATA LINK CONN

SA1922

0.8

.1921TAN/BLK

C8

sheet1

h83050a11

001

40F GTMXD SLD

Data Link Connector

1

Beta Agustin Velazquez GMT5600GMT560 X08

Wednesday, April 19, 2006

1:52:25 pm

$IVEDWORK/h83050a__001schematic

TAN/BLK1921.

0.5

.1921TAN/BLK0.5

40M GTMXD SLDC8

6106 GMLAN_11

(Page 2)

840 DLC_P

AIR+

(Page 1)

1921

CAT_MD+

(Page 2)

(Page 1)

AIR+

1921

1132 DLC_CL2 1455 KEYLESS

DLC+

(Page 1)

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A

G E

D-196 Data Link Connector (continued)

LF6LF6

EcuENGINE CONTROLS ENGINE CONTROLSEcu

J1587- J1587+

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83050a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 2

40M GTMXD SLDB2

C240F GTMXD SLDB2

C2

1922WHT/BLK0.5

.

GMT560

Data Link Connector0 GMT560Agustin VelazquezBeta

2

00111

h83050asheet1schematic $IVEDWORK/h83050a__001

1:52:25 pm

Wednesday, April 19, 200608 X

0.5TAN/BLK

1921.

.1922WHT/BLK0.8 0.8

TAN/BLK1921.

CAT_MD-

(Page 1)

(Page 1)

CAT_MD+

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A

G E

D-197 Data Link Connector (continued)

.6106BLU LT

0.8

Tcm

TRANSMISSION

DATA LINK CONNDlc

TRANSMISSION

Tcm Tcm

TRANSMISSION

DlcDATA LINK CONN

TRANSMISSIONTcmGMLAN Terminator

AB

GMLAN_13

GMLAN_146105 6105 GMLAN_8

GMLAN_76106

GMLAN_12

GMLAN_11

6106

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83050a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

D2

Panel Set: 3

DATA LINK CONN

GMLAN Conf

DATA LINK CONN

GMLAN Conf

GMLAN Conf

DATA LINK CONN

C330M GTMXD SLD

0.8

.6106BLU LT

0.8

.6105BLU DK

6105.

0.8

BLU DK

GMLAN Conf

DATA LINK CONN

SA6105

DATA LINK CONNGMLAN ConfGMLAN Conf

DATA LINK CONN

SA6106

.6105BLU DK0.8

0.8

BLU DK6105.

3

X Agustin Velazquez GMT5600Data Link ConnectorGMT560 X08

W ed ne sd ay , Ap ri l 1 9, 2 00 6 1 :5 2:2 5 p m$IVEDWORK/h83050a__001s ch em ati c s he et 1

h83050a11

001

D4D230M GTMXD SLD

30F GTMXD SLDC3D2D2

TRANSMISSIONTcm

0.8BLU LT

6106.

BLU LT

DATA LINK CONNGMLAN Conf

6106.

0.8

TcmTRANSMISSION

GMLAN ConfDATA LINK CONN

30F GTMXD SLDD4

GMLAN_5_2 GMLAN_5_1

6106 GMLAN_5_2

GMLAN_56106

GMLAN_6_2

GMLAN_6_26105 6105 GMLAN_6_3

GMLAN_6_3

6105 GMLAN_6

GMLAN_5_16106

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A

G E

D-198Serial Data Link (Class 2)

LCT

24702470

SdmSIR

1128

TcmTRANSMISSIONRADIO

TRANSMISSIONTcm

Radio

1122

SERIAL DATA GATEWAYClass 2

SDM_CL2

LCT_CL2

LCT_CL2

HYDRO BRAKESEbc

2673 SDG_CL2 RADIO_CL2 HYDRO_CL2

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83055a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 1

ACTIVE TRANSFER CASE

BLU LT1122.

0.5

YEL

0.5

.2470

4WD ATC Mdl

GRA

30M GTMXD SLDC6

.1133GRN DK/WHT

0.50.5

.1036

YEL2470.

IP CLUSTERClass 2

0.8YEL

2470.

0.8

C6

30M GTMXD SLDC6

CHIME MODULEChime Module

30F GTMXD SLD

BLU DK

30F GTMXD SLDC6

0.5

.1128

Class 2DLC ENGINE CNTLS

Pcm/ Ecu

L M

PPL1132.

0.5

C D E F

G H

J K

Datalink Splice Class2

A B

.2470YEL

0.5

0.8

ORN

BLU LT1122.

0013

h83055asheet1schematic $IVEDWORK/h83055a__001

1:52:48 pm

Wednesday, April 19, 200608 XGMT560

Serial Data Link (Class 2)0 GMT560Agustin VelazquezBeta

1

0.5

.1044

16M GT280H

0.5

16F GT280H40M GTMXD SLD A8

BLU DK1128.

40F GTMXD SLDA8

CL2ATCDLC_CL2 104 9 EN G_CL2

IP_CL2

653 CHIME_CL2

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A

G E

D-199Serial Data Gateway

Ip1 - Trans

10A

LF8: 25A

POWER DISTJ1939J1939

L18/LMM/LF6: 10A

Uh - Pcm BPOWER DIST J1939

J1939

SDG_1_P440 2 36 1 S DG _J +

2 36 2 S DG _J -1020 SDG_2_P

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83056a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

GND DISTGnd Zone #4A

Panel Set: 1

A2

GND

A4

A6

BATT

A8

CLASS 2

SHIELD

B1

IGN 0

B6

Sdg Module

SDG

A1

LOW

J1939

HI

RED/WHT2673.

0.5

STARR CONNECTOR

1

Beta Agustin Velazquez GMT5600Serial Data GatewayGMT560 X08

Wednesday, April 19, 2006

1:53:23 pm

$IVEDWORK/h83056a__001s ch ema ti c s he et 1

h83056a10

001

Class 2

SDG_G1451 SDG_CL2

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E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A

G E

D-201 J1939 - (L18) 8.1L V8 GMPT VORTEC® - Gas – (LF8) 7.8L L6 Isuzu 6H - Diesel –

(LF6) 7.2L L6 Caterpillar ® C7 - Diesel

(Page 1)

DTC-

2362

DTC-

(Page 1)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83057a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 1

DTC

Dtc

YEL0.5

.2361

Dtc

DTC

2362.

0.5GRN DK

GRN DK2362.

0.8 0.8

.2361YEL

YEL2361.

0.50.5

.2362GRN DK

08 XGMT560

J1939 (l18/Lf8/Lf6)0 GMT560Agustin VelazquezBeta

1

0013

h83057asheet1schematic $IVEDWORK/h83057a__001

1:53:40 pm

Wednesday, April 19, 2006

SB2362

SB2361

YEL0.5GRN DK

2362.

0.5

.2361

AB

J1939 Terminator

(Page 2)

DAMU+DAMU-

(Page 2)

SDG+

(Page 2)(Page 2)

SDG-

(Page 1)

DTC_J- DTC_J+

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A

G E

D-202 J1939 - (L18) 8.1L V8 GMPT VORTEC® - Gas – (LF8) 7.8L L6 Isuzu 6H - Diesel –

(LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

YEL2361.

0.5

.2362GRN DK0.5

2362

SHIFT_SEL-

(Page 2)

L6_IP_ENG-

(Page 3) (Page 3)

L6_IP_ENG+

2361

SHIFT_SEL+

(Page 2)

DAMU+

2361

(Page 2)

SDG+SDG-

(Page 2)

2362

DAMU-

(Page 1)

(Page 1)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83057a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 2

GRN DK2362.

0.5

2361.

0.5

YEL

YEL2361.

0.50.5

.2362GRN DK

YEL0.5

GRN DK2362. .2361

0.5

SR2362

SD2362 SD2361

SH2362 SH23610.5

YEL2361.

0.5

.2362GRN DK

0013

h83057asheet1schematic $IVEDWORK/h83057a__001

1:53:40 pm

Wednesday, April 19, 200608 XGMT560

J1939 (l18/Lf8/Lf6)0 GMT560Agustin VelazquezBeta

2

ENG CTRLSDaMU

ENG CTRLS

0.8

MD TRANSMISSIONTcm

DaMU

YEL2361.

0.5

YEL2361.

0.5

.2362GRN DK

0.5GRN DK

2362. .2361YEL

0.5

Sdg SdgSDGSDG

SR2361

.2362GRN DK

TcmMD TRANSMISSION

0.8

2361

SDG+

(Page 1,2)

(Page 1,2)

SDG-

2362

C_IP_ENG+

(Page 3)(Page 3)

C_IP_ENG-

( g )( g )

SHIFT_J-

SHIFT_J+

DAMU_J+

V8_IP_ENG+

(Page 3)

SDG_J- SDG_J+

(Page 2)

SHIFT_SEL- SHIFT_SEL+

(Page 2)

(Page 3)

V8_IP_ENG-

DAMU_J-

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A

G E

D-203 J1939 - (L18) 8.1L V8 GMPT VORTEC® - Gas – (LF8) 7.8L L6 Isuzu 6H - Diesel –

(LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

2362

C_IP_ENG-

(Page 2)

2361

C_IP_ENG+

(Page 2)

(Page 2)

L6_IP_ENG+

2361

(Page 2)

L6_IP_ENG-

2362

2362

V8_IP_ENG-

(Page 2)

2361

V8_IP_ENG+

(Page 2)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83057a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 3

24F GTMXD SLDC6

24M GTMXD SLDC6

C8

40M GTMXD SLDC8

.2361YEL

40F GTMXD SLD

GRN DK2362.

0.8

0.8

0.8

.

C9

YEL2361.

2362

GRN DK

0.8

C9 C8

C9

40M GTMXD SLD

3

h83057asheet1schematic $IVEDWORK/h83057a__001

1:53:40 pm

Wednesday, April 19, 200608 XGMT560

J1939 (l18/Lf8/Lf6)0 GMT560Agustin VelazquezBeta

3

001

C7

C7

40F GTMXD SLDC8

0.8

C9

.2361YEL

0.8GRN DK

2362.

(Page 5)

BRAKE+

BRAKE-

(Page 5)

ECU-

(Page 7)

(Page 7)

ECU+

ECU-

(Page 7)

(Page 7)

ECU+

2361

TCM+

(Page 4)

2362(Page 4)

TCM-

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A

G E

D-204 J1939 - (L18) 8.1L V8 GMPT VORTEC® - Gas – (LF8) 7.8L L6 Isuzu 6H - Diesel –

(LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

23610 8

.2361YEL

2362.

0.8GRN DK

2362

TCM-

GPCM-

(Page 7)

BRAKE-

(Page 7)

GPCM+

BRAKE+

TCM+

(Page 3)(Page 3)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83057a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 4

YEL2361.

0.8

GRN DK0.8

.2361YEL

2362.

0.8

YEL

TcmLCT TRANSMISSIONLCT TRANSMISSION

Tcm

0.8

.2361

0.8GRN DK

2362.

TcmMD TRANSMISSION

GRN DK2362.

0.8

0.8

0.8

.2362

0.8

.2361YEL

GRN DK

MD TRANSMISSIONTcm

SK2362

SK2361

Wednesday, April 19, 200608 XGMT560

J1939 (l18/Lf8/Lf6)0 GMT560Agustin VelazquezBeta

4

0013

h83057asheet1schematic $IVEDWORK/h83057a__001

1:53:40 pm

2362

BRAKE

(Page 5) (Page 5)

BRAKE+

2362

TCM_2-

(Page 7)2362 2362

TCM_2+

(Page 7)

LCT_J- LCT_J+MD_J+MD_J-

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A

G E

D-205 J1939 - (L18) 8.1L V8 GMPT VORTEC® - Gas – (LF8) 7.8L L6 Isuzu 6H - Diesel –

(LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

(Page 3,4,7)

BRAKE+

2361

(Page 3,4,7)

BRAKE-

2362

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83057a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 5

GRN DK0.8

.2362

2362.

0.8GRN DK

2361.

0.8YEL

Wednesday, April 19, 200608 XGMT560

J1939 (l18/Lf8/Lf6)0 GMT560Agustin VelazquezBeta

5

0013

h83057asheet1schematic $IVEDWORK/h83057a__001

1:53:40 pm

30M GTMXD SLDC5

C5 30F GTMXD SLD

C6

C6 2361 YEL0.8

.(Page 6)

AIR+

AIR-

(Page 6)

TERMINATE+

(Page 6)

(Page 6)

TERMINATE-

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A

G E

D-206 J1939 - (L18) 8.1L V8 GMPT VORTEC® - Gas – (LF8) 7.8L L6 Isuzu 6H - Diesel –

(LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

x3

x3

TERMINATE-

2362

(Page 5,6)

TERMINATE+

2361

2362

AIR-

(Page 5)

2361

AIR+

(Page 5)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83057a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 6

J1939 Terminator

AB

YEL2361.

0.8

sheet1schematic $IVEDWORK/h83057a__001

1:53:40 pm

Wednesday, April 19, 200608 XGMT560

J1939 (l18/Lf8/Lf6)0 GMT560Agustin VelazquezBeta

6

0013

h83057a

AIR BRAKESEbc

SU2362 SU2361

2361.

0.8YELGRN DK

0.8

.2362

EbcAIR BRAKES

GRN DK0.8

.2362

(Page 6)

TERMINATE+TERMINATE-

(Page 6)

(Page 5,6)2362

AIR_J- AIR_J+

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A

G E

D-207 J1939 - (L18) 8.1L V8 GMPT VORTEC® - Gas – (LF8) 7.8L L6 Isuzu 6H - Diesel –

(LF6) 7.2L L6 Caterpillar ® C7 - Diesel (continued)

.23612362.(Page 7)

GPCM- GPCM+

(Page 7)

TCM_2+

(Page 4)(Page 4)

TCM_2-

2362(Page 3)

ECU-

(Page 3)

ECU+

2361

GPCM-

(Page 4)

BRAKE-

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83057a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 7

GRN DK

EcuLF8 ENGINE CNTLS

0.8YEL

0.8

.2362

LF8 ENGINE CNTLSGpcm

2361.

0.8

.2361YEL

0.8GRN DK

2362.

0.80.8

.2362 YEL2361.

0.8

.2361YEL

GRN DK

2362.

0.8GRN DK

.2361YELSN2362

0.8

SN2361

LF8 ENGINE CNTLSGpcm

LF8 ENGINE CNTLSEcu

LF6 ENGINE CNTLSEcu

GRN DK2362.

0.8

0.8YEL

SY2362

SY2361

0.8GRN DK

s ch em at ic s he et 1

h83057a3

0017

X Agustin Velazquez GMT5600J1939 (l18/Lf8/Lf6)GMT560 X08

W ed nes da y, Ap ri l 19 , 2 00 6 1: 53: 40 pm$IVEDWORK/h83057a__001

0.8

0.8

.2362GRN DK

YEL2361.

LF6 ENGINE CNTLSEcu

( g ) ( g )

(Page 5)

BRAKE-

23622362

BRAKE+

(Page 5)

GLOW_J+

(Page 4)

GPCM+2362(Page 5)

(Page 5)

BRAKE+

2362

GLOW_J-

CAT_ECU_J- CAT_ECU_J+ISU_ECU_J- ISU_ECU_J+

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-208 HVAC – Heater Only

W I T C H

M O D E

Family 2has FuseFamily 2

has FuseFamily 2

has FuseFamily 2

has Fuse

40F GTMXD SLDB5

40M GTMXD SLDB5

POWER DIST

20A

POWER DISTIp1 - Htr/Ac

20A

Ip1 - Htr/Ac

J2-E J1-C

Hvac - Heater

POWER DIST

20A

Ip1 - Htr/AcINTERIOR LIGHTINGDimmer Signal Dist

10A

HVAC_DIM

141 TEMP_CNTL_P VAC_PUMP_P141

HVAC_P141 8

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83060a

THERMAL LIMITERS

M

M

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

S W

M A X

H E A T

V E N T

B / L

N O R M

SPEED

FAN D E F

B L E N D

M

O F F

M

0.8

Panel Set: 1

119.

1.0

.733BLU LT

B

HI

GND

C

M1

D

LOW

E F

M2

WHT

50A

Maxi - HvacPOWER DIST

Blower Motor Relay

A

BATT

B

SERVO AMP

Temperature Motor

10

7

8

J2-FJ2-G

6M GT280 SLD

J2-A J2-B J2-C J2-D

1.0

J1-A J1-B

1.0

.63YEL

60.BLU LT

72.

1.0TAN

1.0

.52ORN

XGMT560

HVAC (Heater Only)0 GMT560Agustin VelazquezProd

1

GND DISTGnd Zone #4B

542

Vacuum Pump

A

B

0013

h83060asheet1schematic $IVEDWORK/h83060a__001

1:54:26 pm

Wednesday, April 19, 200608

12M GT280 SLDF

.

5.0RED

12F GT280 SLDF

141.

1.0BRN

BRN1.0

.141

6F GT280 SLDB

BRN1.0

.141

141.

1.0BRN

BLK

GND DISTGnd Zone #3B

1.0

.141BRN

0.8

.450

7

0.8BLU LT

733.

Conn 6F MIC/P 1007

Conn 6M MIC/P 100

Conn 6F MIC/P 1008

Conn 6M MIC/P 1008

Conn 6M MIC/P 10010

Gnd Zone #4BGND DIST

Conn 6F MIC/P 10010

TEMP_CNTL_G450

GND DISTGnd Zone #4B

HVAC_MTR_P

450 BLWR_RLY_G

450 HVAC_G

350 VAC_PUMP_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-209 HVAC - Active (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel

M O D E

S W I T C H

has Fuse

Family 2

has Fuse

Family 2

has Fuse

Family 2

has Fuse

Family 2

40F GTMXD SLDB5

40M GTMXD SLDB5

20A

Ip1 - Htr/AcPOWER DIST

POWER DISTIp1 - Htr/Ac

20A

IGN3

J2-E

Hvac - Ac

J1-C

ILLUM

Dimmer Signal Dist

10A

INTERIOR LIGHTING

20A

Ip1 - Htr/AcPOWER DIST

141 TEMP_CNTL_P

HVAC_P141

VAC_PUMP_P141

8 HVAC_DIM

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83065a

M

SPEED

FAN D E F

B L E N D

H E A T

V E N T

B / L

O F F

O F F

N O R M

M A X

D E F

B L E N D

H E A T

V E N T

B / L

N O R M

M A X

S

THERMAL LIMITERS

M

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

M

Panel Set: 1

GND DIST

.

5.0RED

542

Gnd Zone #3B

TAN1.0

.63

BRN

50A

POWER DISTMaxi - Hvac

BLU LT733.

141.

1.0

INPUT

6M GT280 SLDB

0.8

.

1.0

SERVO AMP

Temperature Motor

10

IGN

7

GND

8

YEL60

Gnd Zone #4BGND DIST

450.

0.8

BRN141.

1.0

BLK

.733BLU LT0.8

A

BATT

B

HI

GND

C

M1

D

LOW

E F

M2

6F GT280 SLDB

Blower Motor Relay

.141

BRN1.0

.141

BRN1.0

AC REQ

J2-B J2-C

M2 HI

J2-D J2-F

TEMP

J2-GJ2-H J1-A

GND

J1-BJ2-A

LOW M1

8 12F GT280 SLDF

Conn 6M MIC/P 1007

Conn 6F MIC/P 100

8

Conn 6F MIC/P 1007

Conn 6M MIC/P 100

12M GT280 SLDF

BRN

GND DISTGnd Zone #4B

141.

1.0WHT

119.

1.0 1.0

.52ORN

A

B

Vacuum Pump

10

Conn 6F MIC/P 10010

Conn 6M MIC/P 100

.

1.0

$IVEDWORK/h83065a__001s ch em ati c s he et 1

h83065a15

001

GND DISTGnd Zone #4B

BLU LT72

1

Prod Agustin Velazquez GMT5600HVAC (Active L18/LMM)GMT560 X08

Wednesday, April 19, 2006

1:54:47 pm

450 TEMP_CNTL_G

HVAC_MTR_P

350 VAC_PUMP_G

66

AC_REQ

(Page 2)

BLWR_RLY_G450

HVAC_G450

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-210 HVAC - Active (LMM) 6.6L V8 Isuzu DURAMAX ® - Diesel (continued)

has Fuse

Family 2

14 Way Black GT150 Sealed F ConnB

0.8ORN

1240.

14 Way Black GT150 Sealed M ConnBENGINE CNTLS

Pcm

POWER DISTUh - A/C Comp

10A

0.8GRN LT

66.

.1240ORN

0.8

8F GT150 SLDB

8M GT150 SLDB

POWER DIST

10A

Ip1 - Brake

PcmENGINE CNTLS

GRN LT0.8

.66

Uh - A/C CompPOWER DIST

0.8

.66GRN LT

10A

B3

30F GTMXD SLDB3

30M GTMXD SLD

PCM_LO_AC2603

HVAC_RLYA_P21240

603 PCM_LO_AC

1240 HVAC_RLYA_P

(Page 1)

AC_REQ

HVAC_R_P441

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83065a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

-100

Panel Set: 2

C

14 Way Black GT150 Sealed F ConnC

GRN DK/WHT459.

0.8

14 Way Black GT150 Sealed M Conn

0.8BLK

250.

08 XGMT560

HVAC (Active L18/LMM)0 GMT560Agustin VelazquezProd

2

A

00115

h83065asheet1schematic $IVEDWORK/h83065a__001

1:54:47 pm

Wednesday, April 19, 2006

2523.

0.8

14 Way Black GT150 Sealed M Conn

GRN DK/WHT

B

Ac Clutch - Fam 2

A

H

.59GRN DK0.8

8F GT150 SLDH

8M GT150 SLD

Diode

A

B

14 Way Black GT150 Sealed M Conn

H

0.8

.459GRN DK/WHT

14 Way Black GT150 Sealed F ConnH

GRN DK

GRN LT0.8

.66

0.8

.603

14 Way Black GT150 Sealed F ConnA

PcmENGINE CNTLS

0.8

.762GRN DK/WHT

0.8GRN LT

ENGINE CNTLSPcm

66.

PcmENGINE CNTLS

14 Way Black GT150 Sealed M ConnF

ENGINE CNTLSPcm

14 Way Black GT150 Sealed F Conn

F

SD250

SA59

GND DISTGnd Zone #2B

.59GRN DK0.8

0.8BLK

250.

0.8

.250BLK

A

Ac Clutch - Fam 3

A

B

F

8F GT150 SLD

0.8

0.8GRN DK

59.

Low Pressure SwNormal=Open

Closesat 22-32PSIOpensat 2-9PSI

A

B

GRN DK603.

C

8M GT150 SLDC

8F GT150 SLD

Ac Enable Rly

30

85

86

87

8M GT150 SLDA

CLOSESAT200 (+/-50) PSIOPENSAT430 (+/-20) PSI

NORMAL=CLOSED

High Pressure Sw

A

B

0.8BLK

250.

0.8

.59GRN DK

F

PCM_HI_AC22523

AC_ENABLE_A2459

762 PCM_HI_AC

CLUTCH_G250

459 AC_ENABLE_A

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-211 HVAC – Passive (LF8) 7.8L L6 Isuzu 6H - Diesel

IGN3

J2-E

Hvac - Ac

J1-C

ILLUM

B5

40F GTMXD SLDB5

40M GTMXD SLD

INTERIOR LIGHTINGDimmer Signal Dist

10A

POWER DISTIp1 - Htr/Ac

20A

POWER DIST

20A

Ip1 - Htr/Ac

20A

POWER DISTIp1 - Htr/Ac

8 HVAC_DIM 141 VAC_PUMP_P141 HVAC_P TEMP_CNTL_P141

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83065b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

M

SPEED

FAN D E F

B L E N D

H E A T

V E N T

B / L

O F F

M O D E

O F F

N O R M

M A X

D E F

B L E N D

H E A T

V E N T

B / L

N O R M

M A X

S W I T C H

THERMAL LIMITERS

M

M

Panel Set: 1

TEMP

J2-GJ2-H

AC REQ LOW M1

J2-B J2-C

M2 HI

J2-D

IGN3

J2-FJ1-A

GND

J1-B

ILLUM

J2-A

F

BRN141.

1.0

12M GT280 SLD

A

B

GND DISTGnd Zone #4B Gnd Zone #3B

GND DIST

Vacuum Pump

0013

h83065bsheet1schematic $IVEDWORK/h83065b__001

1:55:14 pm

Wednesday, April 19, 200608 XGMT560

HVAC (Passive LF8/LF6)0 GMT560Agustin VelazquezBeta

1

Gnd Zone #4BGND DIST

TAN1.0

.63

F

1.0

.52ORN

.141BRN

12F GT280 SLD

F

M2

SERVO AMP

Temperature Motor

10

IGN

7

GND

8

INPUT

1.0

Blower Motor Relay

A

BATT

B

HI

GND

C

M1

D

LOW

E

.

5.0RED

542

YEL60.

1.0WHT

119.

1.0BLU LT

72.

1.0

.733BLU LT0.8

Maxi - HvacPOWER DIST

Gnd Zone #4BGND DIST

50A

350 VAC_PUMP_G

66

AC_REQ

(Page 2)

HVAC_MTR_P

450 BLWR_RLY_G TEMP_CNTL_G450

4 50 H VA C_ G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-212 HVAC – Passive (LF8) 7.8L L6 Isuzu 6H - Diesel

POWER DISTUh - Ac Comp

10A

B330M GTMXD SLD

GRN LT66.

0.8

B3

.1240ORN

0.8

30F GTMXD SLD

0.8

4M GT150 SLDB

.66GRN LT

4F GT150 SLDB

1240 HVAC_RLYB_P

(Page 1)

AC_REQ

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83065b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

BLK250.

0.8

-100

Panel Set: 2

Ac Clutch - Fam 3

A

B

GRN DK59.

0.8

SD250

SA59

GRN DK603.

0.8

BLK

0.8

.250

0.8

.

4F GT150 SLDA

459GRN DK/WHT

GRN LT66.

0.8

.

1.0GRN DK/WHT459

EcuENGINE CNTLS

4M GT150 SLDA

$IVEDWORK/h83065b__001

1:55:14 pm

Wednesday, April 19, 200608 XGMT560

HVAC (Passive LF8/LF6)0 GMT560Agustin VelazquezBeta

2

0013

h83065bsheet1schematic

D

4M GT150 SLDD

SA459

4F GT150 SLD

GRN DK/WHT1.0

.459

High Pressure SwNORMAL =CLOSED

OPENSAT 430(+/-20) PSICLOSESAT 200(+/-50) PSI

A

B

GND DISTGnd Zone #2B/C

86

87

Low Pressure Sw

NORMAL =OPENCUT OUT AT TBDPSI

CUT INAT TBDPSIA

B

0.8

.59GRN DK

AC Enable Rly

30

85

.59GRN DK

Diode

A

B

.250BLK

0.8

AC_ENABLE_B459 CLUTCH_G250

0.8

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-213 Rear Heater – Crew Cab

has Fuse

Family 2

has Fuse

Family 2

141.

1.0 1.0

.540ORN

.8GRA BRN

C

3F MP280C

0.5

3M MP280

Ip1 - Htr/Ac

20A

A

3086

POWER DIST

A

20A

Ip1 - Pwr AccyPOWER DIST

B

B

INTERIOR LIGHTINGDimmer Signal Dist

10A

R_HVAC_P540141 R_HTR_RLY_P8 R_HVAC_DIM

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83066a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

M

Panel Set: 1

Gnd Zone #5GND DIST 1.0

.1923ORN

Rear Heater Relay

85 87

Gnd Zone #5GND DIST

YEL1172.

2.0

Gnd Zone #5GND DIST

WHT1924.

1.0

1926.

1.0 1.0

.1925RED

C

BLU DK

J1-A

J2-A

THERMALCUT-OUT CUT-OUT

THERMALResistor Module

A B

CDE F

G

ILLUM

H

Rear Heater Motor

sheet1

h83066a3

001

H I G H

R E A R

O F F

H I G H

M E D

L O W

R E A R

O F F

L O W

M E D

Rear Heater SwitchMODE SWITCH

AB

1

Prod Agustin Velazquez GMT5600Rear Heater (Crew Cab)GMT560 X08

Wednesday, April 19, 2006

1:55:33 pm

$IVEDWORK/h83066a__001schematic

R_HTR_MTR_G550R_HVAC_G550

550 R_HTR_RLY_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-214 Rear Defogger – Crew Cab

Family 2

HVAC CONTROLER

HEATER ONLY9375785

HVAC060-1065-1

PAGE 8A-

has Fuse

DEFOG

PWR

IGN3

J3-B

POWER DISTIp1 - Htr/Ac

20A

Y T I M E R

Hvac - Rear Defog Cntrls

J3-A

30A

Uh - Rear DefogPOWER DIST

141 HVAC_FOG_P DEFOG_P1093

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83061a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 1

293.

2.0

1F MP480A

GND

J3-C J3-D

GRIDDEFOG

PPL

R E L A Y

Gnd Zone #4BGND DIST GND DIST

Gnd Zone #8

Defogger Grid

J1-A

J2-A

3

001

2.0

.293PPL

1M MP480A

1

Prod Agust in Velazquez GMT5600Rear Defogger (Crew Cab)GMT560 X08

Wednesday, April 19, 2006

1:55:56 pm

$IVEDWORK/h83061a__001schematic sheet1

h83061a

HVAC_FOG_G450 850 DEFOG_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-215Chime

Famil 2

Class 2STAR CONNECTOR POWER DIST

Ip1 - Radio/Chime

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83076a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 1

Family 2has Fuse

GND DISTGnd Zone #7A

ELECTRONICS

CLASS 2A

A1

A12

GND

CLASS 2B

A2 B1

BATT

15A

.653BLU DK/WHT

0.5

SPEAKERINTERNAL

Chime Module

CHIME_CL2

750 CHIME_G

1140 CHIME_P

0012

h83076asheet1schematic $IVEDWORK/h83076a__001

1:56:14 pm

Wednesday, April 19, 200608 XGMT560

Chime0 GMT560Agustin VelazquezProd

1

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-216 Displays - Instrument Panel Cluster (IPC)

INSTRUMENT CLUSTER LOGIC

FUEL

+

TACHOMETER SPEEDOMETER

-

GND

OILVOLT

IGN1

TEMP

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83081a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

A9

Panel Set: 1

A930F GTMXD

B9

30M GTMXDB9 Key Minder SwGnd Zone #4AGND DIST

Gnd Zone #7BGND DIST

INTERIOR LIGHTING40F GTMXD SLDC4 Pcm/Ecu

ENG CNTLS

40M GTMXD SLDC4

2662

0.5

.GRN DK/WHT

sheet1schematic $IVEDWORK/h83081a__001

11:51:02 am

Wednesday, May 24, 200607i XGMT560

Instrument Panel Cluster0 GMT560Agustin VelazquezMVB

MINDER

B7

KEY DOOR

B8

AJAR

1

00116

h83081a

B11

DRL

B12

LO AIRPRESS SWTACHOMETER

B13

4KPPM

B14

GND

B15

SIGNAL

B4

DPF SWITCHLEDSWITCH

A6

FUEL FILTERDIRTY PARK

B10

BRAKE

A13

(SES) MILDPF

A5

GRN DK/WHT.2662

0.8

Lo Air Alarm Sw

A

B

Park Brake SwPARK BRAKE

592.GRN LT/BLK

0.5

Gnd Zone #3BGND DIST

Pcm/Ecu

2662.GRN DK/WHT

ENGINE CNTLS

SA2662

0.8

GRN LT/BLK.

0.5

7656

7657

0.5

.GRN DK/WHT

7656

0.5

.GRN LT/BLK

Gnd Zone #7AGND DIST

GRN DK/WHT.

0.5

7657

Headlamp IllumINTERIOR LIGHTING

TELL TALETtm - Dirty Fuel Filter

.541BRN

10A

Uh - Eng1POWER DIST

GND

C

D

E

ILLUM

F

0.5

Regeneration Switch

GND

AB

Pcm/Ecu

DRLDrl Mdl

Lo Air Alarm Sw

A

B

ENG CNTLS

GND DIST

GRN DK/WHT.2662

0.8

INTERIOR LIGHTINGDoor Jamb Sw

Gnd Zone #3B

AIR_SW_G350

P_BRK1134

7655 DFF_DRV

DPF_ILL750

DPF_SW750

2509 DPF_LP

DPF_LED_P

IP_SIGNAL_G1451 80 KEY_MIND

746 DOOR_OPEN 419 MAL_IND_LP

121 TACH 817 PRIM_PPM

350 AIR_PR_SW_G

IPC_DRL

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P

A G E

D-217 Displays - Instrument Panel Cluster (IPC) (continued)

Family 2has FuseFamily 2

has FuseFamily 2

has FuseFamily 2

has FuseFamily 2

has Fuse15A

Ip1 - Radio/ChimePOWER DIST

20A

Ip1 - Ign4POWER DIST

Dimmer Signal DistINTERIOR LIGHTING

Head Lamp SwEXTERIOR LIGHTING

Turn/Haz SwEXTERIOR LIGHTING

10A

High Beam LpsHEADLAMPS

POWER DISTTurn/Haz Sw

EXTERIOR LIGHTINGIp1 - Trans

10A

INTERIOR LIGHTINGHeadlamp Sw - Radio Dimmer

STAR CONNECTORClass 2

Ip1 - Gauges

10A

POWER DIST

IPC_IGN_P1020 IGNSW_D2_P43 IPC_DIM8PARADE13821036 IP_CL2 14 LT_TURN_HAZ

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83081a

H I G H B E A M

L O W A

I R

R E D U C E D E N G P W R

C H E C K G A U G E S

B R A K E

A B S

S P A R E 1

L E F T T U R N

S P A R E 2

C H A N G E O I L

L O W O

I L L E V E L

S E R V I C E E N G S O O N

B A T T E R Y

S E A T B E L T

INSTRUMENT CLUSTER LOGIC

IGN1

R I G H T T U R N

D R L

A I R B A G

E N G O V E R S P E E D

L O W C

O O L A N T

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

has Fuse

Panel Set: 2

has Fuse

GND DISTGnd Zone #7A

IGN0

B5 B6

ACCY PARK

B9

LAMPS

RIGHT

TURN

A7

A8

PWR GND

DIMMER

A9

HIGH IGN1

A12

PARADE

A14

MODE

CLASS 2

A15A4

BATT Ip ClusterLEFT

A10

TURNBEAMS

A11

sheet1schematic $IVEDWORK/h83081a__001

11:51:02 am

Wednesday, May 24, 200607i XGMT560

Instrument Panel Cluster0 GMT560Agustin VelazquezMVB

2

00116

h83081a

9 PARK_LAMP IPC_IGN1_PIPC1_P1140 15 RT_TURN_HAZ

750 IP_PWR_G

IP_HI_BEAM11 39

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P

A G E

D-218 Displays - Tell Tale Module & Gauges

has Fuse

Family 2

B6

IGN1

A7 A11

EXHAUST

A3

EXHAUST BRAKE

Telltale Module

0.5

Exhaust Brake Rly

15A

BattPOWER DIST

BLU LT1998.

0.5

.39

POWER DISTIp1 - Guages

10A

PNK

CAT ENG CNTLSEcu

Ip1 - Guages

10A

POWER DIST POWER DIST

10A

Ip1 - Guages

HTR_RLY440 HTR_LAMP2

239 PTO_TTM

HTR_LAMP3

TELLTALE_P39 EXH_TT1962

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83086a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

JE3JE4LF8/ LF6

LMM/ LF8

Panel Set: 1

Gnd Zone #7A

Generator AsmSTARTING & CHARGING

Tcm

GND DIST

TRANSMISSION GND DISTGnd Zone #7A

TAN185.

0.5

B9

SPARE 2

Auxilary BrakeHYDRO BRAKES

0.5

.2659GRN LT

INTAKEWAIT

HTR

B4

BATTERY

B5

LOCKDIFFRNTL

B7

SPARE 4 TRANS

B8

CHECKPTO

A8

LAMP

A9

FILTERWATER IN FUEL

B10

TRAILERABS

B11

SPARE 1

B3 A10

EXHAUSTGND

A4

BRAKEAUXWASHER

LOW

A5

FLUID

A6

&LMMDIRTY FUEL

AIR BRAKESTrailer Abs Mod

ISUZU ENG CNTLSPcm/Ecu

Low Washer Fluid SwWIPERS

Agustin Velazquez GMT5600Tell Tale Module & GaugesGMT560 X08

Wednesday, May 24, 2006

11:52:04 am

$IVEDWORK/h83086a__001s ch em ati c s he et1

h83086a10

001

GND DISTGnd Zone #7A

1

Prod

0.5

.750BLK Gnd Zone #7AGND DIST

Rear Diff PSI Sw

A

B

Dff DriveIP CLUSTER

7655

0.5

.GRN LT/BLK

0.5

7655

HTD FUEL/WIFWater In Fuel Snsr

750 PTO_TT_G

IP CLUSTERDff Drive

GRN LT/BLK.

DFF_DRV

INTAKE_HTR507

IAH_TT_G

25 L_TERM_TTM AUX_ABS2769ABS_MOD471

DFF_DRV

508 WIF

DIFF_LK_G750LOW_WASH

EXH_TT_G750

1234 CHECK_T

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P

A G E

D-219 Displays - Tell Tale Module & Gauges (continued)

PNEUMATIC PNEUMATIC

has FuseFamily 2

has FuseFamily 2

has FuseFamily 210A

Dimmer Signal DistINTERIOR LIGHTING INTERIOR LIGHTING

Dimmer Signal Dist

10A10A

Ip1 - GuagesPOWER DIST

J1-FJ2-A

ILLUM Ip Gauge Center

J1-A

ILLUM

TBD

ILLUM

AIR PSI TEMP

GAUGE_DIM28 8 GAUGE_DIM TEMP_GAGE_P39

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83086a

Θ

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

GAUGEGAUGE

Agustin Velazquez GMT5600Tell Tale Module & GaugesGMT560 X08

Wednesday, May 24, 2006

11:52:04 am

$IVEDWORK/h83086a__001s ch ema ti c s he et 1

h83086a10

001Panel Set: 22

Prod

40F GTMXD SLDC11 TAN/WHT

Trans Temp Sensor

A

B

585.

1.0

Gnd Zone #4BGND DIST

HD 12M GT280 SLD6M GT280 SLD

.585TAN/WHT0.8

TAN/WHT585.

0.8

Gnd Zone #4BGND DIST

6F GT280 SLDD

GND DISTGnd Zone #3A

J2-B

J2-

12F GT280 SLDH

TRANSMISSIONTEMP GAUGE

SYSTEM AIRPRESSURE

AIR FILTERRESERVEDGAUGE

J1-

J1-CJ1-D

40M GTMXD SLDC11

0.8TAN/WHT

585.

.585TAN/WHT1.0

GAUGES_G450PNEUTC_G450 351 TEMP_SNSR_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P

A G E

D-220Windshield Wiper/Washer

Family 2

has FuseFamily 2

has Fuse

POWER DISTIp1 - Ign4

20A

Ip1 - Ign4POWER DIST

20A

PULSEHI

C

MUX

D

Front Wiper Motor

ELECTRONICS

IGN4

B

43 WIPE_P

43 WASH_P

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83091a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

M

034-1

100-1

Panel Set: 1

PAGE 8A-

HORN 040-1SIR 047-2

TRNHZ 110-1KEYMNDR 114-3

STEERING COLUMN26062266IGNSWCRUISE

010-1

WIPER 091-1BEAMSW

.92PPL

1.0

GND DISTGnd Zone #7A Gnd Zone #7A

Ttm - Low Washer Fluid

TELL TALE

96.

Gnd Zone #7AGND DIST GND DIST

1.0

1.0BRN

RED228.

Windshield WasherPUMP

A

GND

B

C

LOWFLUID

D

GND

7 0 k

Ω

3 0 k

S W I T C H E S A R E R O T A R Y

6 8 0

L O W

M I S T

O F F

W I P E

I N S T A N T

D E L A Y 1

D E L A Y 2

D E L A Y 3

D E L A Y 4

D E L A Y 5

H I G H

W A S H

Ω680

Ω

HI PULSE

E3

IGN4

E4

MUX

E5PUMP

E

Str Col Asm - Wiper Sw

Ω

4 4 5 k

Ω

2 4 5 k

Ω

1 4 5 k

Ω

GMT560 X08

Wednesday, April 19, 2006

2:02:05 pm

$IVEDWORK/h83091a__001sch ematic sheet1

h83091a4

001

PARK SW

M

MOTORWIPER

GND

A

750 WSHR_PMP_G LOW_WASH_G750WPR_MTR_G750

LOW_WASH185

1

Pilot Agust in Velazquez GMT560BWipers & Washer

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P

A G E

D-221 Headlamps – Dual

Note: This is the pinout for 12034372.

WIPER 091-1

PAGE 8A-

HORN 040-1047-2

IGNSWCRUISE

010-1

Note: This pinout may not necessarily match the SAW data.

BEAMSW 100-1

034-1

TRNHZ 110-1KEYMNDR 114-3

SIR

STEERING COLUMN26062266

HIGH LOW

E12

E13

B7

Headlamp SwEXTERIOR LIGHTING

Str Col Asm - H/L Beam Sw

E11

B6 40F GTMXD SLD

GRN LT2 0

11.

GRN LT

.11

B7

2.0

B6

1 0

.12TAN

40M GTMXD SLD

AB

C

12

LOWBEAM_SW10 HIGH

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83100a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

TXL

16522983R - L/H Beam

.12

19

FWDLP

R_FWDLP

Panel Set: 1

TXL

A

19

BLK350.

50

.11

L O W

8A-Page -11SAME AS LEFT SIDE

14A/B/C

H I G H

Gnd Zone #3B

12C

GND DIST

BEAM_G

501.0FWDLP

002

B C

&8D5&8D5

12034372

A

TAN

&8D5

FWDLP

19

501.0

A

DRL DRL Delete

GRN LT

5M GT280 SLD15409273

B

TXL1.0

0050A

1.0

.350BLK

5F GT280 SLDBA

11.GRN LT1.0

GND DISTGnd Zone #3B

1.0

12.TAN

1.0

5M GT280 SLDB

544PPL.

.TAN

12

Drl Rly

DRLDrl Rly

1.0

.TAN

12

1.0

DRL

SB11

2.0GRN LT

.11

11.GRN LT1.0

Hi BeamIP CLUSTER

0014

h83100asheet1schematic $IVEDWORK/h83100a__001

2:02:20 pm

Wednesday, April 19, 200608 XGMT560

Headlamps (Dual)0 GMT560Agustin VelazquezProd

1

5F GT280 SLDB

SA12

A

GRN LT

2.0

SA11

.11

1.0

1.0

.12TAN

1.01.0TAN

12.

1.0GRN LT

11.

L - L/H Beam

H I G H

L O W

A

B C

LO_BEAM_SW

LO_BEAM

11

HIGH

LOWBEAM_G

IP_HI_BEAM

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P

A G E

D-222 Headlamps – Quad (Family 2)

IGNSW

BEAMSW 100-1

SIR 047-2

PAGE 8A-

TRNHZ 110-1KEYMNDR 114-3

STEERING COLUMN

WIPER 091-1

010-1CRUISE

040-1

26062266

HORN034-1

40M GTMXD SLDB6B7

B7

EXTERIOR LIGHTING

Str Col Asm - H/L Beam Sw

E11

HIGH LOW

E12

E13

11

Headlamp Sw

2 0

11.GRN LT

GRN LT.11

40F GTMXD SLDB6

2.0

1 0

.12TAN

12

LOWBEAM_SW10 HIGH

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h830100b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

&HPR

501.0

&HPR.11

1.0

B

Panel Set: 1

11Gnd Zone #3B

TXL

FWDLP

Gnd Zone #3BGND DIST

H I G H

TXL

FWDLP

GRN LT

4 0 W

A

1 2C 0 05 0A

BLK350.

50

11.

8A-

6 0 W

&HPR

&HPR

.12

06288472

R High Beam

0050A12C

&HPR

350

TXL

50

11.GRN LT

501.0GRN LT

B

19

Page - 14A

GND DIST

19

R - L/H Beamheadlamp_a

L O W

06288471

14A8A-

19

FWDLP

B

C

SC11

FWDLP

19

1.0 50

R_FWDLP5M GT280 SLD15409273

DRL DRL Delete

TXL

BEAM_GHI_BEAM_G

hi_beam 003

50W

A

A

1.0

SAME AS LEFT SIDE

TAN19

FWDLP

TXL

003

11-Page

TAN1.01.0

TAN12. .12

1.0GRN LT

11.

SB11

2.0GRN LT

.11

1.0

Hi BeamIP CLUSTER

sheet1schematic $IVEDWORK/h83100b__001

2:02:39 pm

Wednesday, April 19, 200608 XGMT560

Headlamps (Quad Family 2)0 GMT560Agustin VelazquezProd

1

11.GRN LT

.TAN

12

1.0

0014

h83100b

5F GT280 SLDB

GND DISTGnd Zone #3B

A

A

1.0

12.TAN

Gnd Zone #3B

GRN LT.11

1.0

GRN LT.11

1.0

GND DIST

B

SA11

.11

1.0GRN LT

.350BLK

50W

L High Beam

A

2.0

SC11

1.0

5M GT280 SLDB

A

11.GRN LT1.0

C

5F GT280 SLDB

L O W

H I G H

AB

4 0 W

6 0 W

L - L/H Beam

Drl Rly

1.0

544PPL.

1.0

DRLDrl Rly

DRL

.TAN

12

SA12

HIGH

LOW

1.0

IP_HI_BEAM LO_BEAM_SW

LO_BEAM

11

BEAM_GHI_BEAM_G350

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P

A G E

D-223 Daytime Running Lamps (DRL)

Marker Lp Rly

8630

Family 2

Family 2

has Fuse

has Fuse

Ip2 - Marker Lamp Rly

M30 M86

SA21

GRN DK.21

1.0

Ip1 - Marker LampPOWER DIST

20A

POWER DISTIp2 - Rh Parklamp

10A

0.8

21.GRN DK GRN DK

.21

0.8

MRK_LPS_P1340

2609 MRK_RLY_P

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83110a

87 8587A

12193602

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 4

M85M87M87A

E

Mkr Lp Defeat Sw

A

GND

B

GND

C

RLY ILLUM

16F GT280A

16M GT280A

GRN DK.21

0.8

22F GTMXDA4

1.0

21.GRN DK

0.8BLK.750

0.8BLK.750

Roof Mkr #5

A

B

1.0

21.GRN DK

0.8

21.

GND DISTGnd Zone #7A

Right Mirror MarkerPOWER MIRRORS

GRN DK

1.0

21.

0.8BLK.750

GRN DK

Left Mirror MarkerPOWER MIRRORS

A

B

Roof Mkr #2

0.5

2666.ORN/BLK

22M GTMXDA4

0.8

21.GRN DK

GRN DK.21

1.0

30M GTMXD A13

Roof Mkr #4

A

B

0.8

750.BLK

SC21

Marker LampFAM 3 TRAILER WIRING

0.8

21.GRN DK

BODY BUILDERMarker Lamps

22F GTMXDA4

40F GTMXD SLDA2

1.0GRN DK

.21

A730M GTMXD

A

B

21.GRN DK1.0

Roof Mkr #3

A

B

Roof Mkr #1

30F GTMXDA7

A240M GTMXD SLD

21

0.8GRN DK

.

Gnd Zone #7AGND DIST

22M GTMXDA4

GND DISTGnd Zone #7A

08 XGMT560

Exterior Lighting0 GMT560Agustin Velazquez

4

Prod00115

h83110asheet1schematic $IVEDWORK/h83110a__001

2:03:20 pm

Wednesday, April 19, 2006

0.8GRN DK

.21

0.5ORN/BLK

2666.

Headlamp IllumINTERIOR LIGHTING

30F GTMXDA13

MKR_LMP21MARKERS_G750BB_MRKR_LP

LH_MRK RH_MRK

MRKR_SW_G750 750 MRKR2_SW_G

2509 MKR_LP_LP

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P

A G E

D-224 Exterior Lighting

ELECTRONICS

HAZARDSW

TURNSW

CRUISE

Family 2 has Fuse

034-1010-1

HORN

STEERING COLUMN

114-3

040-1

110-1

WIPER

Family 2 has Fuse

26062266

TRNHZKEYMNDR

100-1

047-2SIR091-1

PAGE 8A-

BEAMSW

IGNSW

2.0ORN.1040

Turn / Hazard Flasher

2

4

5

PNK139.

0.8

STOPSWBRAKEPRIORITY

E2

HAZARDFORBATT

E8

FLASHEROUTPUT

E9

IGN1FOR

TURN

A2

FLASHERTURNPOWER

A3

POWERHAZARDFLASHER

E1

Str Col Asm - Turn Hazard

POWER DIST

1.0

1696.GRA

15A Ip1 - Turn/Backup

SA1696

25A

POWER DISTIp1 - Hazard

1697.PPL

1.0

Gnd Zone #7AGND DIST

YEL895.

1.0

.1696

1.0GRA

GRA.1696

1.0 (Page 2)

CHMSL

(Page 1)

TURN_HAZ

750 TRNHAZ_G

HAZ_P IGTRNHAZ_P

1696

TURN_HAZ

(Page 1)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83110a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

R_FWDLP

A

19

-SAME AS LEFT

121621828160A

B

50

350

R-Fr Turn & Park 15148648

GND DIST

Page

has Fuse

BRN

11

TXL

FWDLP

Family 2

FWDLP

RTRNPRK_G

1.0

2509

Panel Set: 1

Family 2

8A-

19

DE

001

1.0

14BLU LT

T U R N

12C

Gnd Zone #3B

.

5M GT280 SLD

TXL50

15409273

P A R K

.

C

has Fuse

14A/B/C

D740M GTMXD SLD

SA14

X08

Wednesday, April 19, 2006

2:03:20 pm

$IVEDWORK/h83110a__001s ch em at ic s he et1

h83110a15

001 ProdExterior Lighting

1

Agustin Velazquez GMT5600GMT560

POWER DIST

5F GT280 SLDD

Lt Turn HazardIP CLUSTER

Ip2 - R-Rr Truck

E

1.0

15.BLU DK

STOP/TURNRIGHT

E6

LEFTSTOP/TURN

E7A1

TURNRIGHT

A6

TURNLEFT

A7

HAZARDPRIORITY

STOPSW

D

1.0YEL.18

40F GTMXD SLDD7

1.0

15

SA15

POWER DISTIp2 - Rh Parklamp

10A

.BLU DK

BLU LT.14

1.0

1.0

14.

10A

Ip2 - Lh ParklampPOWER DIST

BLU LT

A

B

C

P A R K

L-Fr Turn & Park

Rt Turn HazardIP CLUSTER

T U R N

GND DISTGnd Zone #3B

1.0

19.GRN DK

E 5M GT280 SLD

BRN.2509

1.0

D8

D8

D

BLU LT.14

1.0

.14

1.0BLU LT

1.0

14.BLU LT

POWER DISTIp2 - L-Rr Truck

5F GT280 SLDE

1.0

15.BLU DK

15

1.0BLU DK

.

LTRNPRK_G350

RT_TURN_HAZ

(Page 2)

R_T_RLY

15

2609 RFR_PARK_P

RR_STOP_LP

LR_STOP_LPLT_TURN_HAZ

LFR_PARK_P2509

L_T_RLY

14(Page 2)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P

A G E

D-226 Exterior Lighting (continued)

has Fuse

Family 2

has FuseFamily 2

has Fuse

Family 2

has Fuse

Family 2

40F GTMXD SLDD5

POWER DIST

10A

Ip2 - R Rr Truck

A130M GTMXD SLD

10A

Ip2 - Rh ParklampPOWER DIST

40M GTMXD SLDD5

POWER DISTIp2 - L Rr Truck

10A

A1 30F GTMXD SLD

618.YEL

POWER DISTIp2 - Lh Parklamp

10A

24.GRN LT

24.GRN LT

.24GRN LT

GND DISTGnd Zone #3D

40F GTMXD SLD D4

GRN LT.24

GRN DK.619

GRN LT.24

2.0

D440M GTMXD SLD

SC24

RR_TURN_P619

24(Page 6)

BU_SW

618 LR_TURN_P

L_TAIL_P2509 R_TAIL_P2609TAIL_LP_G350

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83110a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 3

2.0

2509.

D

BRN

A

GRN LT.24

2.0

Left Tail Lamps

A

UPBACK

B

TAIL/ LICENSETURN

STOP/

C

GND

E

8M GT280 SLDE

SH350

.350

2.0BLK

F

.2609

2.0BRN/WHT

F

BLK2.0

350.

SU350

Back UpSCHOOL BUS UPFITTER

2.0BRN.2509 350.

BLK2.0 2.0

2609.YEL

2.0

618.BRN/WHT

SD24

F

DF 8F GT280 SLDE

BA

SCHOOL BUS UPFITTERBack Up Alarm

A

B

Back Up Alarm Siren

A

.24

2.0GRN LT

2.0

B

BLK.350

2.0

618

2.0

GRN LT

2.0YEL.

2.0

24.

Back UpFAM 2 TRAILER WIRING

Right Tail LampsUPBACK

AB

TAILTURNSTOP/

C

GND

E

8F GT280 SLDE

2.0 2.0

8M GT280 SLDE

350.BLK

BODY BUILDERBack Up

G

2.0 2.0

350.BLK

G

D

B

2.0

24.GRN LT

GRN LT2.0

24.

D

A

SB24

2.0

G

GMT560 0 GMT560Agustin Velazquez3

Exterior Lighting

2.0

Prod00115

h83110asheet1schematic $IVEDWORK/h83110a__001

2:03:20 pm

Wednesday, April 19, 200608 X

G

B

GRN LT.24

2.0

2.0GRN DK

.619

GRN DK2.0

619.

TRLR_BACK24SB_BACK_UPSB_BU_ALARM BB_BACK_UP

24

BU

(Page 3)

BU_ALARM

(Page 3)

BU_ALARM350

(Page 3)

BU

(Page 3)

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P

A G E

D-227 Exterior Lighting (continued)

Marker Lp Rly

8630

12193602

Family 2

Family 2

has Fuse

has Fuse

Ip2 - Marker Lamp Rly

M30 M86

SA21

GRN DK.21

1.0

Ip1 - Marker LampPOWER DIST

20A

POWER DISTIp2 - Rh Parklamp

10A

0.8

21.GRN DK GRN DK

.21

0.8

MRK_LPS_P1340

2609 MRK_RLY_P

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83110a

87 8587A

12193602

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 4

M85M87M87A

E

Mkr Lp Defeat Sw

A

GND

B

GND

C

RLY ILLUM

16F GT280A

16M GT280A

GRN DK.21

0.8

22F GTMXDA4

1.0

21.GRN DK

0.8BLK

.750

0.8BLK

.750

Roof Mkr #5

A

B

1.0

21.GRN DK

0.8

21.

GND DISTGnd Zone #7A

Right Mirror MarkerPOWER MIRRORS

GRN DK

1.0

21.

0.8BLK

.750

GRN DK

Left Mirror MarkerPOWER MIRRORS

A

B

Roof Mkr #2

0.5

2666.ORN/BLK

22M GTMXDA4

0.8

21.GRN DK

GRN DK.21

1.0

30M GTMXD A13

Roof Mkr #4

A

B

0.8

750.

BLK

SC21

Marker LampFAM 3 TRAILER WIRING

0.8

21.GRN DK

BODY BUILDERMarker Lamps

22F GTMXDA4

40F GTMXD SLDA2

1.0GRN DK

.21

A730M GTMXD

A

B

21.GRN DK1.0

Roof Mkr #3

A

B

Roof Mkr #1

30F GTMXDA7

A240M GTMXD SLD

21

0.8GRN DK

.

Gnd Zone #7AGND DIST

22M GTMXDA4

GND DISTGnd Zone #7A

08 XGMT560

Exterior Lighting0 GMT560Agustin Velazquez

4

Prod00115

h83110asheet1schematic $IVEDWORK/h83110a__001

2:03:20 pm

Wednesday, April 19, 2006

0.8GRN DK

.21

0.5ORN/BLK

2666.

Headlamp IllumINTERIOR LIGHTING

30F GTMXD A13

MKR_LMP21MARKERS_G750BB_MRKR_LP

LH_MRK RH_MRK

MRKR_SW_G750 750 MRKR2_SW_G

2509 MKR_LP_LP

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P

A G E

D-228

Exterior Lighting (continued)

110-5114-5

Family 2

DOME DEFEAT

EXTERIORINTERIOR

114-3

has Fuse

PAGE 8A-HEADLAMP SW

1.0

.240ORN

40A

POWER DISTMaxi - Headlamp

RED1142.

3.0

20A

Ip1 - Park POWER DIST

CH

PARK_P

HEADLAMP_P

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83110a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

15013006Domestic:

Optional Part #’s:

Export:15013005

Panel Set: 5

NOTE:

INTERIOR LIGHTSIllum

.10YEL

1.0

Beam Select SwHEADLAMPS

.9

1.0

BRN

SA9

.10YEL

1.0

2:03:20 pm

$IVEDWORK/h83110a__001sc hematic sheet1

h83110a15

001 Prod5

Agustin Velazquez GMT5600Exterior LightingGMT560 X08

Wednesday, April 19, 2006

1.0

9.BRN

1.0BRN.9

TRAILER WIRINGPark Lp

1.0

.10YEL

1.0

YEL10.

Drl ModuleDRL

SA10

O F F

H E A D L P

P A R K L P

BAT

G

HEADLAMPS

BAT

S

LAMPSPARK

17.1A

Headlp Sw - Exterior

POWER DISTLt/Rt Park LpPark Lamps

IP CLUSTER

PARK_SW

PARK_LP9 DRL_HEAD_LPBEAM_SWPARK_LP_PPARK_LAMP

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P

A G E

D-229

Exterior Lighting (continued)

Fam 2 Manual Trans Fam 3 Manual Trans

Reverse RelayLCT TRANSMISSION

6M GT280 SLDE

15A

Ip1 - Turn/BackupPOWER DIST

GRN LT.24

0.8

POWER DISTIp1 - Turn/Backup

15A

6F GT280 SLDE

GRN LT.24

0 8A

0.8GRN LT

.24

MD TRANSMISSIONReverse Relay

SA24

0.8

LCT TRANSMISSIONReverse Relay

GRN LT.24

0.8PNK

139.

BU_LCT_1BU_LCT_1

BACK_UP24

139 BU_MAN2_P 139 BU_MAN3_PBU_MD

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83110a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

20B-88A-

Panel Set: 6

2 4 B AC K_ UP

Page 20D-11

ISUZU ENG CNTLSEcu/Pcm

/

&L18&FAM2 &LMM &L18/LF6&FAM3&LF8

6M GT280 SLDA

X08

Wednesday, April 19, 2006

2:03:20 pm

$IVEDWORK/h83110a__001sch ematic sheet1

h83110a15

0016

Prod Agust in Velazquez GMT5600Exterior LightingGMT560

0.8

Reverse Sw

B

0.8

6F GT280 SLDA

GRN LT24.

SA24

0.8

.24GRN LT

0.8

24.

0.8

GRN LT24.

GRN LT

0.8.24GRN LT

GRN LT24.

0.8

ISUZU ENG CNTLSEcu/Pcm

BU_SW

(Page 3)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P

A G E

D-231

Interior Lighting (continued)

Family 2has Fuse

.2509

30M GTMXDA2

0.5BRN

SB2509

30F GTMXDA2

Ip2 - Lh Parklamp

10A

POWER DIST

2509BRN

0.5

.

DOOR_SW_ILL

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83114a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

BRN

POWER WINDOWS

RR_WIN_LP

Same

2509

15326018as

7

&A31&CREWCAB

Panel Set: 2

left

Right Rear Window Sw

H REAR_RDOOR

Page 8A-120B

TXL50

REAR_DOOR0.5

-2

.

12M GT280

POWER WINDOWSLeft Rear Window Sw

0.5

2509

SG2509

BRN2509.

0.5

.BRN

0.5BRN

2509.

Passenger Window SwPOWER WINDOWS

2509BRN

0.5

.2509BRN

0.5

.

00115

h83114asheet1schematic $IVEDWORK/h83114a__001

2:04:00 pm

08 X

Wednesday, April 19, 2006GMT560 0 GMT560Agustin VelazquezProd

2

Interior Lighting

0.5

.BRN

0.5

2509

2509.BRN

2509

0.5BRN.

10F GT280H

22M GTMXDA1

22M GTMXDA1

22F GTMXDA122F GTMXDA1 H 10M GT280

12M GT280H

POWER WINDOWSDriver Window Sw

12F GT280H

12F GT280H

LR_WIN_LPPASS_WIN_LPDR_WIN_LP2509

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P

A G E

D-232

Interior Lighting (continued)

TRNHZ

047-2

PAGE 8A-STEERING COLUMN

AU0

034-1

AU0 114-3KEYMNDR

26062266

091-1

IGNSW

040-1SIR

BEAMSW

CRUISE010-1

B3

B4

HORN

110-1

WIPER100-1

Str Col Asm - Key Minder0.5

.156WHT

A530F GTMXD

ClusterIP CLUSTER

0.5

KEYLESS ENTRYRfa Module

WHT156.

0.5

.80GRN LT

KEYLESS ENTRYRfa Mdl

30M GTMXDA5

IP CLUSTERCluster

746159

Loop Anchor

LA156

RFA_DOME

DOME

(Page 5)

156

KEY_MIND DOOR_OPEN

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83114a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

AU0

INTERIOR110-5EXTERIOR114-5

PAGE 8A-HEADLAMP SW

Panel Set: 3

DOME DEFEAT 114-3

GND

D

L F Door Jamb Sw

A

DOME

B

AJARKEY-IN

C

.157GRA

0.5

A1

22F GTMXD B1

30F GTMXD

30M GTMXDA3

BLK/WHT746.

0.5

30F GTMXDA3

328

0.5PPL.

22M GTMXDB1

B2

.PPL

0.5

328

B3

A1 30M GTMXD

746BLK/WHT

Rfa Module

0.5

.

GND DISTGnd Zone #5

B2

.328

0.5PPL

.328

0.5PPL

30F GTMXDB1

Headlp Sw - Dome Defeat

B

L

.159

0.5TAN

.

0.5

SA328

746.

0.5BLK/WHT

BLK/WHT746

0.5BLK/WHT

746.

GND DISTGnd Zone #5

.328

0.5PPL

B3

Wednesday, April 19, 2006001

15

h83114asheet1schematic $IVEDWORK/h83114a__001

2:04:00 pm

08 XGMT560 0 GMT560Agustin VelazquezProd3

Interior Lighting

B2

30M GTMXDB1

PPL0.5

328.

0.5BLK/WHT

.746

B1

WHT156.

0.5

22M GTMXD

0.5

328.PPL

0.5

159.

.TAN

0.5

159

TAN

157.

0.5

B3

GRA

SA746

B2

B3

R F Door Jamb Sw

A

GND

B

KEY-IN

C

AJAR

D

DOME

22F GTMXD B1

(Page 3)

RH_JAM

KEY_DOME

328

REAR_JAM

(Page 4)

550 LDOORJAM_G

(Page 3)

RH_JAM

550 RDOORJAM_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P

A G E

D-233

Interior Lighting (continued)

(Page 3)

REAR_JAM

328

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83114a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

&CREWCAB

12

1C5LRIGHT REAR DOOR JAM SWITCH

Gnd Zone #5

rdoor_sw_2

Page

A

R R Door Jam Sw

8A-

15326018

PPL

GND DIST

.

B DC

J

REAR_DOOR

RRDOORJAM_G

328

50

12M GT280

1400A

-

TXL

14A/B/C

550

001

19

Panel Set: 4

REAR_RDOOR

0.8

Same as left

15326559

10F GT280K

0.5

328.PPL

12F GT280J

J 12M GT280

GND DISTGnd Zone #5

h83114a15

0014

Prod Agustin Velazquez GMT5600Interior LightingGMT560 X08

Wednesday, April 19, 2006

2:04:00 pm

$IVEDWORK/h83114a__001s ch ema ti c s he et 1

0.8

328.PPL

SC328

0.5

328.PPL

12F GT280J

PPL.328

0.5

A

DOME

B

AJARKEY-IN

C

GND

D

L R Door Jam Sw

10M GT280K

550 LRDOORJAM_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P

A G E

D-234

Interior Lighting (continued)

has Fuse has FuseFamily 2

has Fuse

Family 2

Family 2

DM

&C95 Front Dome Lp

A

10A

Ip1 - CourtesyPOWER DIST

10A

Ip1 - GaugesPOWER DIST

POWER DISTIp1 - Courtesy

10A

0.5

156.

WHT

Rear Dome Lp&C95

A

(Page 3)

DOME

DOME_P4040 RR_DOME_P

39 ILLUM_P

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83114a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

HEADLAMP SW

114-5110-5

Dome Lamp P/N

114-3

EXTERIOR

DOME DEFEAT

-C95 : 15528765

Panel Set: 5

PAGE 8A-

&C95 : 15528767

INTERIOR

WHT156.

0.5

SA156

EXTERIOR LIGHTSParklamps

ILLUM

IGN 1

DIM

E

DOMELAMP

RADIO DIM

N

GND

R

RADIORadio

P A R K

L P

H E A D

L P

O F F

Headlp Sw - Interior

P A R A D E

D O M E

GND DISTGnd Zone #7A

0.8

44

Ip1 - IllumPOWER DIST

.GRN DK

READ

DOME

B

0.5

.156WHT

16M GT280D

0.5

156.WHT

30F GTMXDB8

30M GTMXDB8

.156WHT

0.5

SA1382

1.0PPL/WHT

1382.

.1382

1.0PPL/WHT

1.0

1382.PPL/WHT

PPL/WHT1.0

1382.

DOME

READ

B

WHT156.

0.5

D

00115

h83114asheet1schematic $IVEDWORK/h83114a__001

2:04:00 pm

Wednesday, April 19, 200608 XGMT560

Interior Lighting0 GMT560Agustin VelazquezProd

5

16F GT280

PPL/WHT.1382

1.0

Parade Mode IllumIP CLUSTER SIR

Step Dimmer

750 HEADLPSW_G

R_PARADE

PARK_SW

DIMMERSTEP_DIMPARADE

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-235

Truck/Trailer Wiring (Family 2)

Blunt CutBA47

9.

3.0BRN

EXTERIOR LIGHTINGEXTERIOR LIGHTINGRh Turn/Haz Trlr Rly Back Up

3.0

.47BLU DK

EXTERIOR LIGHTINGLh Turn/Haz Trlr RlyHeadlamp Sw

EXTERIOR LIGHTINGPOWER DIST

30A

Maxi - Elec Brk

PARK_LP RH_HAZ2 TRLR_BACK LH_HAZ2642 ABS_TRLR2_P

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83119a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

B

Panel Set: 1

40M GTMXD SLDC6

M12

Trailer Gnd TermA

40F GTMXD SLDC6

40M GTMXD SLDA4A5

40F GTMXD SLDA4

0012

h83119asheet1schematic $IVEDWORK/h83119a__001

2:04:26 pm

Wednesday, April 19, 200608 XGMT560

Truck Trailer Wiring0 GMT560Agustin VelazquezProd

1

GND DISTGnd Zone #12A

22WHTGRN LT

24.

3.0

A5

5.0

.

3.0

.318YEL

3.0

SA642

5.0

.642RED

47BLU DKBRN

9.

RED642.

3.0

3.0

.

3.0

.319GRN DK

AUX ELEC BRAKE

C

BACK UP

A

LEFT STOP/TURN

G

RIGHT STOP/TURN

D B

PARK LAMP

F

BATTERY

E

GROUND

7F MP280

TRAILER_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-236

Truck/Trailer Wiring (Family 3)

C

.9BRN

Headlamp SwEXTERIOR LIGHTING

3.0

Brake Lp RlyEXTERIOR LIGHTING

8F MP280

Marker Lp RlyEXTERIOR LIGHTING

YEL318.

3.0

EXTERIOR LIGHTINGLh Turn/Haz Trlr Rly

POWER DIST

40A

Uh - Abs2

GRN DK319.

3.0 3.0

.1411RED

3.0

.21GRN DK

EXTERIOR LIGHTINGRh Turn/Haz Trlr Rly

MKR_LMP1642 ABS_TRLR_P PARK_LP RH_HAZ BRAKE_LP LH_HAZ

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83119b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

5

50

(Page 2)

5.0

7 TRAILER CONNECTOR

22TRLR_ABS_P WHT

19

TRAILER

U86 - 7 WIRE FULL TRAILER WIRING

1413

.

4 3

TRAILER SUPPLIER ONLYTXL

2

Panel Set: 1

1

RPO LEGEND

6

TRLR_ABS_G

F

C

(Page 2)

GND DISTGnd Zone #12B

7F MPMXD SLD

.1413BLU DK

C

$IVEDWORK/h83119b__001s ch ema ti c s he et 1

h83119b2

001

D

5.0

1

Prod Agustin Velazquez GMT5600Truck Trailer Wiring (Fam 3)GMT560 X08

Wednesday, April 19, 2006

2:04:38 pm

G

3.0

.9BRN

5.0

8F MP280F

WHT22.

.319GRN DK

A

B

3.0

318YELBRN

9.

3.0 3.0

.

7

7M MPMXD SLDF

PARK LAMP

6

BATTERY BRAKE LAMP

4

RIGHT TURN

57F MP280

GROUND

1

BLU DK1413.

5.0

318.

3.0

G

LEFT TURN

3

YEL

E

A

B

BLK1412.

3.0

M12

Trailer Gnd Term

C

RED1411.

5.0

C

GRN DK319.

3.0

A 8M MP280FB D

A D

A

E

MARKER LAMP

2

E

ED

RED1411.

5.0

.1412BLK

TRAILER_G

3.0

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-237

Truck/Trailer Wiring (Family 3) (continued)

19

WHTTXL

22

SPLICE

.

ABS POWER & MULTIPLEXED SIGNAL

19

.

5.0

.

1950

WHT

TRLR_ABS_P

(Page 1)

5 0

(Page 1)

22

TRLR_ABS_GTRAILER

5 0TXL

22

50

50

BLU DK1413

TXL

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83119b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

TRAILER SUPPLIER ONLY

TRAILER ABS P485 ENHANCEMENT

Panel Set: 2

RF Wheel

Speed Sensor

LF Wheel LR Wheel

50

RR Wheel

5.0

TRAILER

TRAILER5.0

Speed Sensor

EBC MULTIPLEXED SIGNAL

50

Speed Sensor

TRAILER

Speed Sensor

Wednesday, April 19, 2006

2:04:38 pm

$IVEDWORK/h83119b__001schematic sheet1

h83119b2

0012

Prod Agust in Velazquez GMT5600Truck Trailer Wiring (Fam 3)GMT560 X08

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-238

Tractor Wiring (Family 3)

Brake Lp RlyEXTERIOR LIGHTING EXTERIOR LIGHTING

Lh Turn/Haz Trlr RlyHeadlamp SwEXTERIOR LIGHTINGPOWER DIST

40A

Uh - Abs2 Marker Lp RlyEXTERIOR LIGHTINGEXTERIOR LIGHTING

Rh Turn/Haz Trlr Rly

MKR_LMP1642 ABS_TRLR_P PARK_LP RH_HAZ BRAKE_LP LH_HAZ

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

http://slidepdf.com/reader/full/2009-gm-medium-duty-electrical-manualpdf 349/410

Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83119c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

7

50

WHT

45

Panel Set: 1

5.0

.

2

TRACTOR

6

TRLR_ABS_G

TRAILER SUPPLIER ONLY

TXL 1 9

TRACTOR CONNECTOR1

1413(Page 2)

22

(Page 2)

TRLR_ABS_P

3

.319GRN DK

3.0

.9BRN

3

3.0

RED

BLK1412.

3.0

1

Pi lot Agust in Velazquez GMT560BTractor Wrg ( Fam 3)GMT560 X08

Wednesday, April 19, 2006

2:04:51 pm

$IVEDWORK/h83119c__001schematic sheet1

h83119c2

001

5.0

.1411

.318YEL

7

A D

3.0

B

6

C

YEL318.

3.0

5

Gnd Zone #7BGND DIST

7F MP2801

RED1411.

5.05.0

.1413BLU DK

24

BRN9.

3.0

F

GRN DK319.

3.0

8F MP280F

8M MP280

B

21GRN DK

A

5.0

.22WHT

3.0

.

Tractor Gnd TermA

BD E

E

M6.3

TRACTOR_G

C

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-239

Tractor Wiring (Family 3)

19

22

TRACTOR

19

.

ABS POWER & MULTIPLEXED SIGNAL

505.0

.

(Page 1)

SPLICE

WHT5.0TXL

TRACTOR

WHT5.0

TXL

.

19

50

TRLR_ABS_P

(Page 1) 22

1413

22

BLU DK

50

TRACTOR

TXL

TRLR_ABS_G

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83119c

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Speed Sensor

P485 ENHANCEMENT

MULTIPLEXED SIGNALTRAILER ABS

Panel Set: 2

Speed SensorSpeed SensorSpeed Sensor

LF Wheel

EBC

RF Wheel RR Wheel

TRAILER

TRAILER SUPPLIER ONLY

LR Wheel

2

Pi lo t Agustin Velazquez GMT560BTractor Wrg ( Fam 3)GMT560 X08

Wednesday, April 19, 2006

2:04:51 pm

$IVEDWORK/h83119c__001s ch em at ic s he et1

h83119c2

001

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-240

Body Builder Connector

POWER DISTIp2 - Brake Iso

EXTERIOR LIGHTSMarker Lamp Rly Back Up Sw

EXTERIOR LIGHTSSecondary PpmENGINE CNTLS POWER DIST

Ip1 - Aux Wire Rly

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83119d

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

has Fuse

J

Family 2has FuseFamily 2

12M GT280 SLDBDY_BLDRH

0.8

Panel Set: 1

BDY_BLDR

has Fuse

12M GT280 SLDEFG

K

L

C

15326915

D

Family 2

15326915

B

A

10A

1320.BLU LT

L

1.0BRN

.2509

LEFT TURN (&FAM3)

LEFT STOP/TURN (&FAM2)

C

BACK UP

12F GT280 SLD

K

EXTERIOR LIGHTSRh Turn Trailer Rly

Body Builder Connector

1

Prod Agust in Velazquez GMT5600GMT560 X08

Wednesday, April 19, 2006

2:05:02 pm

$IVEDWORK/h83119d__001schematic sheet1

h83119d10

001

RIGHT STOP/TURN (&FAM2)

RIGHT TURN (&FAM3)&TSV/TSW

J H

SECONDARY PPM

A

SEO

MARKER LAMP

G

12F GT280 SLD

GND

Ip2 - Rh Parklamp

10A10A

Ip2 - Lh ParklampPOWER DIST

IGN 3

F

EXTERIOR LIGHTSLh Turn Trailer Rly

POWER DIST

E

STOP

LEFT PARK

D

RIGHT PARK

B

GND DISTGnd Zone #3B

15A

BRN/WHT

.2609

1.0

21 BB_MRKR_LP

BB_G350

BB_L_PARK

BB_STOP_P641 BB_PBB_PPM1827 BB_BACK_UP24

BB_R_PARK319 BB_R_TURN318 BB_L_TURN

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-241

School Bus Upfitter

EXTERIOR LIGHTSRh Turn Trailer Rly

0.8

2509.BRN

1.01320.BLU LT

Gnd Zone #3BGND DIST

A

1.0

2609.BRN/WHT

2

19.0

.RED

10F GT280H

POWER DIST

E

Ip2 - Brake Iso

10A

Ip2 - Rh Parklamp

10A

POWER DISTPOWER DIST

10A

Ip2 - Lh ParklampEXTERIOR LIGHTSLh Turn Trailer Rly

K

Back Up SwEXTERIOR LIGHTS

BC D

Battery PositiveBATTERIES

FL

SCHOOL_P

SB_G350

BB_R_PARKBB_L_PARKBB_STOP_P 319 SB_R_TURN318 SB_L_TURN SB_BACK_UP24

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83119e

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

B

TXL19

C

Panel Set: 1

3.0

Back Up Alarm

B

D

BACKUP2M MP280 SLD

TXL

A

E SCHOOLBUSH

BLK

5050

24

SCHOOL BUS SUPPLIED

.350

1400 Hz Tone

15300032

15326935

GRN LT

BACKUP

19

BACKUP

.

10M GT280

SCHOOL BUS SUPPLIED

3.0

0.8BLK

550.

A B

AK

A4

BLK0.8

.550

B10

SA550

A9B9 A10 22F GTMXD

0.8

.1516BLU LT0.8

GRN DK21.

0.8

.1499GRN LT

22F GTMXDB8

.1517YEL

0.8 .267ORN

0.8

2F MP280 SLDB

EXTERIOR LIGHTS

Back Up Sw

GND DISTGnd Zone #3D

BACK UP

A

Littelfuse 100A Mega

B

GROUND

A

FConn 8M M/P 150

HC

STOP

D

RIGHT TURNLEFT TURN LEFT PARK RIGHT PARK

1

Prod Agust in Velazquez GMT5600Bus UpfitterGMT560 X08

Wednesday, April 19, 2006

2:05:28 pm

$IVEDWORK/h83119e__001schematic sheet1

h83119e2

001

G

Littelfuse Term 1

M8

A

B

.550BLK

0.8

24 SB_BU_ALARM 350 BU_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-242

Power Windows (Regular Cab)

.

0.5

POWER DOOR LOCKSDriver Door Lock Sw

BRN2509

2 0YEL

343.

Headlamp IllumINTERIOR LIGHTING

.343YEL

2 0INTERIOR LIGHTING

Passanger Door Lock SwPOWER DOOR LOCKS

A522M GTMXD

B7

POWER DISTIp2 - Pwr Window

25A

30M GTMXDA8

30F GTMXDA8

343.

2.0

.343YEL

2.0YEL

22F GTMXDB7A5

YEL343.

WIN_IGN4_P

P_WIN_SW

343

P_WIN_SWDRV_LK_LP

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83120a

Θ

Θ

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

A5

Panel Set: 1

Drv Window Mtr

A

B

667.

2.0

22F GTMXD A6

2.0BRN

A

B

2.0

.166BLU LT

A7

Pass Window Mtr

22F GTMXDA7

22M GTMXD

2.0 Headlamp Illum

TAN167.

2.0

Gnd Zone #5GND DIST

A7

2.0

TAN167.

2.0

TAN167.

A60.5

.2509BRN

.166BLU LT

AB

C

ILLUM

D

E

IGN4

F H

2.0

ILLUM

D

EF G

H

IGN4

Pass Window Sw

D O W N

U P

E X P R E S S

D O W N

Driver Window Sw

L H D O W N

R H D O W N

R H U P

L H U P

AB

BRN2509.

0.5

2.0

.166BLU LT

A5

A7

343.

A6

2.0YEL

$IVEDWORK/h83120a__001

2:05:50 pm

Wednesday, April 19, 200608 XGMT560

Power Windows (Reg Cab)0 GMT560Agustin VelazquezProd

1

BRN165.

2.0

0013

h83120asheet1schematic

2.0

.164BLU DK

.550BLK

0.5

.2509BRN

2.0YEL

2.0

2.0

.666BLU DK

Gnd Zone #5

.343YEL

2.0

PASS_LK_LP

PASS_WIN_LP

22M GTMXDA6

GND DIST

550 PASS_WIN_G

DR_WIN_G

DR_WIN_LP

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-243

Power Windows (Crew Cab)

SA2509

0.5

.2509BRN

.

2.0YEL

343

.

2.0

30F GTMXDA8

YEL343

22F GTMXDA5

A8

Driver Door Lock SwPOWER DOOR LOCKS

0.5

.2509BRN

A5

30M GTMXD

22M GTMXD

INTERIOR LIGHTINGHeadlamp Illum

J1-AJ1-B

.343YEL

2.0

25A Ip2 - Pwr WindowPOWER DIST

BRN2509.

0.5

DRV_LK_LP

DR_WIN_LP

LR_P

(Page 2)

WIN_IGN4_P

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83120b

Θ

E X P R E S S

D O W N

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 1

A

B

Drv Window Mtr

22M GTMXDB7

GND DISTGnd Zone #5

2.0

.343YEL

YEL

343.

2.0

2.0

.165BRN

10F GT280E

YEL343.

2.0

SC343

22F GTMXDB7

h83120bsheet1schematic $IVEDWORK/h83120b__001

2:07:12 pm

Wednesday, April 19, 200608 XGMT560

Power Windows (Crew Cab)0 GMT560Agustin VelazquezProd

1

J2-H

DOWN

0013

J2-C

LF LF

J2-D

DOWNUP

J2-E

LR LR

J2-F

DOWNUP

J2-G

RR RRLOCK

J1-D

OUT

J1-E

GNDRF

J2-A

DOWNUP

J2-B

RFUP

UPRIGHTFRONT

LEFTFRONTUP DOWN UP DOWN UP DOWN

Driver Window SwILLUM IGN4

J1 B

BLU DK164.

2.0

J2-J1-

DOWN

10M GT280E

YEL

343.

2.0

YEL343.

2.0

SB343

2.0BLK

550.

2.0

.343YEL

DR_WIN_G

(Page 2)

LR_UP

168

171

RR_DOWN

(Page 2)

(Page 2)

RR_UP

170

(Page 2)

RR_P

(Page 2)

RF_UP

167

343

RF_P

(Page 2)

166

RF_DOWN

(Page 2)

169

LR_DOWN

(Page 2)

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-244

Power Windows (Crew Cab) (continued)

Headlamp IllumINTERIOR LIGHTING

2.0

.169PPL

4F GT280D

PPL169.

2.0

2.0PPL

171.

2.0

.170GRN LT

B

TAN167.

2.0

B

0.5

.2509BRN

C

CA

GRN DK168.

2.0

2.0

.168GRN DK

4M GT280DA

171.

2.02.0

.170GRN LT PPL

Passanger Door Lock Sw

POWER DOOR LOCKS

22M GTMXDA7

A622F GTMXD

A7

2.0

.166BLU LT

PASS_LK_LP

A6

(Page 1)

LR_UP

RF_P

(Page 1)

(Page 1)

LR_DOWN

(Page 1)

RF_UP

(Page 1)

RF_DOWN

RR_DOWN

(Page 1)

RR_UP

(Page 1)

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83120b

Θ

Θ

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Θ 560_win_mtr

R R Window Sw

2.0 TXL

8A-

GRN LT

D O W N

U P

A

FNA1C5A

2509

Gnd Zone #5

BRN671

INTERIOR LIGHTING

550 RR_WIN_G

RR_WIN_LP E

Same as left

Panel Set: 2

502.0

50

19 19

1C5L 1400A

.171

2.0 TXL

REAR_DOOR

PPL

50

12M GT280

Page

170

M12129487

A

114A

G

19

15728437_rr

.670

14A/B/C

001

12064998

8A-

BLU DK

B

C

ILLUM

D

E

F

12

REAR_DOOR

TXL2.0

H

REAR_DOOR

.

TXL

19

.343YEL

50REAR_DOOR

2.0

004

REAR_DOOR

REAR_RDOOR

-2Headlamp Illum

GND DIST

TXL

.

19

R R Window Mtr

B

15326018

12F GT280G

Page -

50

IGN4

F

.169PPL

BLU LT166.

2.0

2.0

2.0

.169PPL

A5

Headlamp Illum

2.0

.167TAN

C

F H

L R Window Sw

D O W N

U P

AB

C

ILLUM

D

E

IGN4

F

Gnd Zone #5GND DIST

F

E

22F GTMXDA7PPL

171.

2.0

.170GRN LT2.0

G

E

12M GT280

E

F

IGN4

H

BRN2509.

0.5

U P

D O W N

Pass Window Sw

AB

ILLUM

C D

GRN DK168.

2.0

G

A6

12F GT280G F

Pass Window Mtr

A

B

INTERIOR LIGHTINGHeadlamp Illum

.343YEL

2.0

G

22M GTMXDA7

A

B

BRN669.

L R Window Mtr

2.0

.668BLU DK

2.0

BLU LT166.

2.0

GND DISTGnd Zone #5

10F GT280F

10M GT280F

2.0

.167TAN

2.0GRN DK

168.

E

D.343YEL

2.0

A6

D

0013

h83120bsheet1schematic $IVEDWORK/h83120b__001

2:07:12 pm

Wednesday, April 19, 200608 XGMT560

Power Windows (Crew Cab)0 GMT560Agustin VelazquezProd

2

A5

2.0YEL

343.

C

BRN2.0

BLU DK666.

2.0

.667

LR_WIN_LP2509

PASS_WIN_LP343

LR_P

(Page 1) (Page 1)

RR_P

343

PASS_WIN_G550

550 LR_WIN_G

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-245

Power Door Locks

A8

.195BLU LT1.0

KEYLESS ENTRY

A

LOCK

B

GND

ILLUM

C

D

UNLCK

BATT

E

INTERIOR LIGHTINGSw Illum

Pass Dr Lck Sw

LOCK

A

GND

B

C

ILLUM

UNLCK

D

E

BATT

20A

POWER DISTIp1 - Pwr Accy

Driv Dr Lck Sw

1.0WHT

194.

1.0

22F GTMXDB5

WHT194.

A8

20A

Ip1 - Pwr AccyPOWER DIST

Sw IllumINTERIOR LIGHTING

BLU LT1.0

.195

22F GTMXDB5

2509PASS_LK_P5402509 DRV_LK_LP 540 DRV_LK_P

PASS_LK_LP

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83130a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 1

1.0

.194

1

WHT

Wednesday, April 19, 2006001

3

h83130asheet1schematic $IVEDWORK/h83130a__001

2:07:32 pm

08 XGMT560

Power Door Locks0 GMT560Agustin VelazquezProd

22M GTMXDB5A8

SA194

GND DISTGnd Zone #5

1.0WHT

194.

1.0WHT

194.

A8

POWER DIST

20A

Rfa MdlSS

Ip1 - Pwr Accy

GND

E

MTR LOCK

F

SW LOCK Door Lck Rly Asm

A

SW UNLCK

B

MTR UNLCK

C

BATT

D

Gnd Zone #5Gnd Zone #5GND DIST GND DIST

22M GTMXDB5

SA195

KEYLESS ENTRY

Rfa Mdl

1.0

.195BLU LT

1.0.195BLU LT

BLU LT195.

1.0 DOOR_LOCK195

LOCKDOOR_UNLK194

294

MTR_UNLCK

(Page 2)

(Page 2)

MTR_LOCK

295

LK_RLY_P540

LK_RLY_G550

1 95 LO CK

550 DRV_LK_G PASS_LK_G550

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-246

Power Door Locks (continued)

12F GT280

C

294

1.0TAN.

KEYLESS ENTRY

Rfa Mdl

TAN

.

1.0

294

TAN

294.

1.0 A 10M GT280

A

294

1.0

.

10F GT280

1.0TAN

294.TAN

SA294SB294

.TAN

294

1.0

TAN294.

1.0

TAN294.

1.0

.294TAN

1.0

C 12F GT280

MTR_UNLCK

(Page 1)

DRV_DR_UNLK

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83130a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Θ Θ

Θ Θ 004iso_drlck_mtr

as

REAR_DOOR

295.

A

B

GRA

1.0

1.0REAR_DOOR

TXL

.294

19

&CREWCAB

M

REAR_RDOOR

Panel Set: 2

12M GT28015326018

15300027

19

REAR_RDOOR

TAN

C

50

R R Drlck Mtr

&CREWCAB

50

1C5L 1400A

left

TXL

12M GT28015326018

D

Same

12F GT280D

.294TAN

1.0

1.0

.295GRA

B6

22M GTMXDB4

22M GTMXD

1.0

TAN294.

.294TAN

22M GTMXDB4

1.0

.295GRA

GRA295.

1.0

1.0

22F GTMXDB6

SB295

.295GRA

1.0

.295GRA

1.0

22M GTMXDB6

295.

1.0GRA

295GRA

1.0

.

1.0GRA

295.

12M GT280C

B

10M GT280B

10F GT280

L R Drlck Mtr

M

A

B

1.0

.295GRA

22F GTMXDB6

22F GTMXD B4

GRA295.

1.0

SA295

B

M

Driv Drlck Mtr

A

B

2

Prod Agustin Velazquez GMT5600Power Door LocksGMT560 X08

Wednesday, April 19, 2006

2:07:32 pm

$IVEDWORK/h83130a__001s ch em ati c s he et 1

h83130a3

001

Pass Drlck Mtr

M

A

D

12M GT280D

22F GTMXDB4

12F GT280

(Page 1)

MTR_LOCK

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-247

Remote Keyless Entry (RKE)

INTERIOR LIGHTSHorn Rly

HORN

has FuseFamily 2

Dome Lamps

10A

Ip1 - GaugesPOWER DIST

LOCK

UNLOCK

Ip1 - Pwr Accy

20A

POWER DIST

39

RFA_DOME156 HORN_CHIRP28540 RFA_P

RFA_IGN1_P

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83132a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

Panel Set: 1

1.0

.194WHT

Door Lock DOOR LOCKS

All Door Unlock DOOR LOCKS

ALLDOORLOCK

R

DOME LAMP

S

CHIRPBATT

E

DOORPASSANGER

UNLOCK

H

IGN1

J

DOOR JAMB

K

PROGRAMENABLE

L

GND

N

h83132a3

001

RFA

Remote Function Act

DRIVERDOOR

UNLOCK

A

DOORALL

UNLOCK

B

C

HORN

A4

1

Prod Agust in Velazquez GMT5600Remote Keyless EntryGMT560 X08

Wednesday, April 19, 2006

2:07:53 pm

$IVEDWORK/h83132a__001sche matic sheet1

30M GTMXDA4

30F GTMXD

DOOR LOCKSDriver Door Unlock Dome Defeat Sw

INTERIOR LIGHTING GND DISTGnd Zone #5

Pin 8DLC

.195BLU LT1.0

BLK/WHT1455.

0.5

5 50 R FA _G

0.5

.1455BLK/WHT

DRV_DR_UNLK294

DOOR_LOCKDOOR_UNLKKEYLESS

KEY_DOME157

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-248

Power Mirrors

30F GTMXDB1

SA267

0.8ORN

267.

E

O W N

W N

I G H T

/ R I G H T

D O W N

U P

R I G H T

L E F T

Mirror Switch

0.8ORN

267.

ORN

0.8

.267

POWER DISTIp1 - Pwr Acc

20A

0.8

.267ORN

0.8

.267ORN

INTERIOR LIGHTINGHeadlamp Illum

30M GTMXDB1

SB267

540 MIR_SW_P

(Page 2)

HTD_MIR_SW

H_MIR_LP2509

8/10/2019 2009 GM Medium Duty Electrical Manual.PDF

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83147b

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

8785

3086

Htd Mirror

12088567

Family 2

Panel Set: 1

has Fuse

Family 2

has Fuse

GRA90.

0.8

.267ORN

0.8

Gnd Zone #7AGND DIST

GND DISTGnd Zone #7A

Ip1 - Aux Wire

15A

POWER DIST

0.8GRN LT

1499.

GMT560

Power Mirrors0 GMT560Agustin VelazquezProd

1 Wednesday, April 19, 2006001

3

h83147bsheet1schematic $IVEDWORK/h83147b__001

2:08:10 pm

08 X

A BCD FG H

D R I V E R U P / D O

D R I V E R

P A S S

P A S S U P / D O W

P A S S L E F T / R I

D R I V E R L E F T /

B

ILLUM

C D

EF

Htd Mirror Switch

A

YEL0.8

.1517

GND DISTGnd Zone #4B

.1498

1516.

0.8BLU LT

BRN/WHT0.8

15A

Ip1 - Aux WirePOWER DIST

0.8

.1497BLU LT/WHT

GND DISTGnd Zone #5

ORN267.

0.8F86

F87

Ip2 - Htd Mirror Rly

F30

F85

550 MIR_SW_GDRIV_U-D

(Page 2)

(Page 2)

PASS_U-D

(Page 2)

PASS_L-R

(Page 2)

PASS

(Page 2)

DRIV_L-R

(Page 2)

DRIV

450 H_MIR_RLY_G

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750 H_MIR_LED_G

641 H_MIR_RLY_P

H_MIR_SW_P641

E LECTRICAL

M ANUAL

– 2009 M EDIUM

DUTY

– C-S ERIES

– CONVENTIONAL

C AB P

A G E

D-249

Power Mirrors (continued)

ORN0.8

SC267

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267

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(Page 1)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83147b

MM

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E LECTRICAL

M ANUAL

– 2009 M EDIUM

DUTY

– C-S ERIES

– CONVENTIONAL

C AB P

A G E

D-250

Entertainment - Radio

has Fuse

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83150a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

MICRO

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E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

D-251

Entertainment - Speakers

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LF_SPKR+RF_SPKR+

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab h83154a

LAST CHANGED BY

Panel Set:

VERSIONSTAGEREVISIONOBJECT ID ORGANIZATION

REAR_RDOORB

7

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Wednesday, April 19, 2006

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E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

E-1

Connector/Terminal Contacts

DelphiDelphi connectors and terminals can purchased via phone by contacting PIONEER at 1-800-PACKARD or on-line through

the Power and Signal website at www.powerandsignal.com

UPFITTER’S QUICK REFERENCE Additional information on existing and new features

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Bosch

Bosch connectors and terminals can purchased via phone by contacting CHIEF ENTERPRISES or on-line through their

website at [email protected]

Bob Socha

Chief Enterprises

Chicago, IL

800-831-7294 ext 217

Cell: 847-894-0311

Sumitomo

Sumitomo connectors and terminals can purchased via phone by contacting SUMITOMO ELECTRIC WIRING SYSTEMS

at 270-782-7397 or on-line through their website at www.sewsus.com

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

E-2

Power Take-Off (PTO)/Description & Operation

Table 1: PTO – Preset Mode – Factory Default Settings

Table 2: PTO – Preset Mode – Function Table

Table 3: PTO – Variable Mode

Table 4: PTO – Variable Mode Function Table

Table 5: Reprogramming the PCM/ECM for Fast Idle/PTO

The power take-off (PTO) is an upfitter integrated system that

allows the user to create an auxiliary power source that will

drive either a hydraulic pump or a generator. When the op-

erator requests PTO the PTO switch will be turned ON and

The following parts are upfitter supplied and installed:

• The load engage switch

• The PTO solenoid

Voltage is supplied with the ignition switch in RUN and START

through the engine 1 fuse to the secondary side of the PTO

relay and the PTO enable switch. When the PTO switch isturned ON, voltage will be present through the primary side of

the PTO relay and at the PTO ON switch signal circuit at the

PCM. If the PCM sees all of the PTO engage conditions it will

provide a ground for the relay. Current will flow through the

coil in the PTO relay and close the normally open contacts.

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

the engine RPM will go to a default standby speed. The PTO

solenoid will engage if all of the engage conditions are met. If

any of the PTO engage conditions for the specific operating

mode are no longer valid, the engine controller will exit out of

PTO mode.

The PTO system is integrated with the cruise control and

engine control system. The PTO system utilizes the following

GM parts:

• The PTO enable switch

• The cruise control multi-function switch

• The PTO relay

• The Powertrain Control Module (PCM) with 8.1L gasoline only

• The Engine Control Module (ECM) with 6.6L or

7.8L diesel only

• The Throttle Actuator Control (TAC) module with

8.1L gasoline only

coil in the PTO relay and close the normally open contacts.

This will allow current to flow to the load engage switch. When

the operator closes the load engage switch current will flow

to the PTO solenoid. If the PCM sees all of the PTO engage

conditions the PCM will send a class 2 signal to the TAC mod-

ule. The TAC module will use the TAC motor to increase the

engine RPM to the standby speed. In the event that any of the

PTO requirements are no longer met then the PCM will return

the engine RPM to idle and turn the PTO solenoid OFF.

For diesel applications, engine speed is controlled by the

ECM and the fuel injection control module (FICM).

(continued on next page)

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

E-3

PTO Preset Mode Function Table

Present PTO State Pressing Resulting PTO State

PTO Standby Speed SET PTO Set Speed

PTO Standby Speed RESUME PTO Resume Speed

PTO Set Speed SET PTO Standby Speed

PTO Set Speed RESUME PTO Resume Speed

PTO R S d SET PTO S t S d

Power Take-Off (PTO)/Description & Operation (continued)Modes of Operation

PTO–Preset Mode-Factory Default Settings

The PTO preset mode is normally used for stationary ap-

plications. The PTO solenoid will remain engaged while mo-

bile in the preset mode however PTO set and resume speed

controls will be inoperative. The engine RPM will also return

to normal. This mode provides a default standby speed thatvaries depending on the engine and transmission combina-

tion. This mode also provides 2 default PTO control speeds.

Please note that the standby speed is not to be used as a

PTO control speed. All vehicles that have the PTO option

should be equipped with cruise control

PTO Preset Mode Function

The following chart shows how to toggle between the three

PTO speeds through the SET and RESUME switches on the

cruise control multifunction switch.

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

PTO – Preset Mode-Factory Default Settings

Programmable

Settings

Factory Setting

(RPM)

Minimum

Value (RPM)

Maximum

Value (RPM)PTO Max Engine

Speed2200

L18 - 2100

LMM - 950

L18 - 4200

LMM - 3100

PTO Standby

RPM

F2 Auto/F2

Manual/F3

L18 -

800/850/1200

LMM - 850/850

Normal engine

idle will over-

ride if higher

than requested

PTO base idle

1300

PTO Set Speed All/L18 Fam 3

1250/1400

PTO Set speedcannot be set

below PTO

Standby speed

L18/LMM

4200/3100

PTO Resume Speed SET PTO Set Speed

PTO Resume Speed RESUME PTO Standby Speed

should be equipped with cruise control.

PTO Variable Mode

This PTO speed control mode is used for both stationary and

mobile applications. This mode allows PTO to be controlled

in a fashion similar to cruise control. The operator is able to

hold an engine RPM with the SET switch on the cruise stock.

The operator can tap up to increase engine speed in 100 RPM

increments with the RESUME switch. The operator may also

tap down to decrease engine speed with the SET switch. Vari-

able engine RPM may be obtained by holding either the SETor RESUME switch.

(continued on next page)

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

E-4

Power Take-Off (PTO)/Description & Operation (continued)

PTO – Variable Mode

Programmable

Settings

Factory Setting

(RPM)

Minimum

Value (RPM)

Maximum

Value (RPM)

PTO Max Engine

Speed2200

L18 - 2100

LMM - 950

L18 - 4200

LMM - 3100

PTO Standby

RPM

F2 Auto/F2

Manual/F3

L18 -

800/850/1200

LMM 850/850

Normal engine

idle will over-

ride if higher

than requested

PTO base idle

1300

(continued from page E-3) Reprogramming the PCM/ECM for Fast Idle/PTO

Using the Scan Tool

The scan tool must be used to enable the Fast Idle and PTO

options and adjust the factory preset parameters to the de-

sired settings. The scan tool menu driven device is a hand

held scan tool that plugs into the datalink connector located

underneath the dash near the driver’s seat. Once the scan

tool is connected, the following chart will guide the user.

Reprogramming the PCM/ECM for Fast Idle/PTO

Step Current menu Select

1 Main F0: Diagnostics

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

LMM - 850/850

PTO Variable Mode Function Table

Switch Set Resume (w/Cruise Only)

Pressed Once

Engine speed willdecrease by 100 RPM

increments and will

maintain new engine

speed value. Engine

speed can be de-

creased down to PTO

Standby RPM speed

value, all further SET

inputs will be ignored.

Engine speed will increase by

100 RPM increments and will

maintain new engine speed

value. Engine speed can be

increased up to PTO max engine

speed value, all further RESUME

inputs will be ignored.

Held

Decelerates engine

speed down to thePTO standby speed

value

Increases engine speed up to

the PTO max engine speed

value

1 Main F0: Diagnostics

2 Vehicle Identification Year of Vehicle

3 Vehicle Identification Medium Duty Truck

4 Vehicle Identification Make

5 Vehicle Identification Series

6 Powertrain Engine

7 Powertrain Automatic or Manual

8 Module Setup F3: PTO Options

9 Current PTO Settings Change Options

10 PTO OptionsRefer to the following information for

the PTO options menu selections

(continued on next page)

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

E-5

To Adjust the Mode of Operation:

The PTO options menu will appear with the selections:

• F0: Fast Idle

• Preset PTO Speed Control

• Variable PTO Speed Control

Power Take-Off (PTO)/Description & Operation (continued)

Once the mode of operation is selected the Current PTO Set-

tings menu will appear with the adjustable parameters for the

current mode.

This screen allows the user to increase or decrease engine

RPM values using the INCREASE and DECREASE buttons.

PTO Components

PTO Switch

The PTO switch is mounted in the left side of the instrument

panel. The PTO switch has 2 positions, ON and OFF. When the

PTO switch is in the ON position, voltage will be present on

the PTO ON switch signal circuit at the relay and the PCM. ThePTO indicator is an LED and is integral with the switch The in-

dicator will illuminate when the switch is turned ON. The pres-

ence of the indicator being on does not mean that the PTO

solenoid is engaged. The cruise control multi-function switch

must be used in conjunction with the PTO switch. Illumination

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

RPM values using the INCREASE and DECREASE buttons.

If the Engine Fault Shutdown feature is selected, the YES or

NO Buttons will determine if this feature is enabled.

Important: Please be aware that UF3 and PTO high idle set-

tings must be reprogrammed in the event that the PCM isreplaced. It may be advisable to provide the PCM settings

information to the customer in case the PCM requires servic-

ing during some point in the life of the vehicle.

After all the settings are adjusted, the user will press the

REPROGRAM button and the Current PTO Settings menu will

appear with the changes. The ignition must be turned OFF for

10 seconds to ensure that the program values are stored in

the PCM.

j

of the switch is provided through the dimming circuit.

Cruise Control Multi-Function Switch

Engine speed control of the PTO system must controlled by

the function control switches located on the multifunction turnsignal lever. The cruise control function control switches in-

cludes the ON/OFF, SET/COAST, and RESUME/ACCEL. The

switch assembly provides driver control of the PTO as well as

the cruise control system. The SET/COAST and RESUME/AC-

CEL switches may be used to increase and decrease engine

RPM. See the chart above for recommended speeds.

PTO Relay

The PTO relay is located on the side of the underhood fuse

block. Voltage is supplied with the ignition switch in RUN andSTART through the Engine 1 fuse to the secondary side of the

PTO relay. The PTO switch controls the voltage to the primary

side of the PTO relay while the PCM controls the ground.

(continued on next page)

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

E-6

Load Engage Switch

The load engage switch is an upfitter supplied and installed

part. The switch is remote. Voltage is supplied by the PTO

relay to the normally open contacts of the switch. When the

switch is closed current will flow to the PTO solenoid.

PTO Solenoid

The solenoid is an upfitter supplied part and is replaceable

on most PTOs. The PTO solenoid is used on clutch activated

PTOs. The PTO relay supplies the solenoid with voltage

when the relay is energized.

TAC Module

The TAC module is the control center for the electronic

throttle system. The TAC module and the PCM communicate

through a dedicated redundant serial data circuit. The TAC

module and the PCM monitor the commanded throttle po-

sition and compare the commanded position to the actualthrottle position. This is accomplished by monitoring the APP

and the throttle position (TP) sensor. These 2 values must be

within a calibrated value of each other or a DTC may be set.

The TAC module also monitors each individual circuit of the

TP sensor and the APP to verify proper operation. The TAC

Power Take-Off (PTO)/Description & Operation (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

PCM

The PCM is the control center of the PTO system. Applica-

tions with a 6.6L or 7.8L diesel use an ECM. The PCM moni-

tors numerous engine and vehicle functions. To engage the

PTO, the PCM must see the following conditions:

• The engine must be running

• The transmission must be in PARK or NEUTRAL

• The park brake must be set for manual transmission only

• The vehicle speed must be zero in Preset Mode only

• The brake or clutch must not be depressed

The PCM constantly looks at the information from various

sensors and other inputs, and controls the systems that af-fect vehicle performance. The PCM also performs a diagnos-

tic test on the electronic throttle control system.

module commands the TAC motor to increase or decrease

the engine RPM.

TAC Motor

The TAC motor is part of the throttle body and controls thepositions of the throttle. The motor is bi-directional and is

controlled by the TAC module. The TAC motor increases or

decreases the engine RPM.

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

E-7

Power Take-Off (PTO)/Diagnostic Checks – Diagnostic Starting Point/Symptoms

Diagnostic Starting Point – Power Take-Off (PTO):

Important: The following steps must be completed before

using the symptom tables.

1. Review the system Description and Operation in order

to familiarize yourself with the system functions. Refer to

Power Take-Off (PTO) Description and Operation.2. Perform the Diagnostic System Check - Vehicle before

using the Symptom Tables in order to verify that all of the

following are true:

• There are no Diagnostic Trouble Codes (DTCs) set.

• The control module or modules can communicate via

Symptom List

Refer to a symptom diagnostic procedure from the following

list in order to diagnose the symptom:

• Power Take-Off Does Not Engage

• Engine RPM Does Not Increase With

Power Take-Off Engaged • Power Take-Off Indicator Inoperative

Symptoms – Power Take-Off (PTO):

Important: The following steps must be completed before

sing the s mptom tables

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

• The control module or modules can communicate via

the serial data link.

Visual Physical Inspection

• Inspect the easily accessible and visible system compo-

nents for obvious damage or conditions which could cause

the symptom.

• Inspect the transmission for the proper transmission

fluid level.

• Inspect the hydraulic reservoir for the proper hydraulic

fluid level.

• Inspect the uptter connections at the transmission.

Intermittent

Faulty electrical connections or wiring may be the cause of

intermittent conditions.

using the symptom tables.

1. Perform the Diagnostic System Check – Vehicle, before

using the Symptom Tables in order to verify that allof the

following are true:

• There are no Powertrain Control Module (PCM) or

Engine Control Module (ECM) Diagnostic Trouble Codes

(DTCs) set.

• The vehicle modules can communicate to each other via

the serial data links.

2. Review the system operation in order to familiarize your-

self with the system functions. Refer to Power Take-Off (PTO)

Description and Operation.

(continued on next page)

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

E-8

Power Take-Off (PTO)/Diagnostic Checks – Symptoms (continued)

Visual Physical Inspection

• Inspect the uptter connections of the PTO system. Refer

to Checking Aftermarket Accessories.

• Inspect the easily accessible and the visible system com-

ponents for obvious damage.

• Inspect the transmission and hydraulic pump for the properfluid level.

Intermittent

Faulty electrical connections or wiring may be the cause of

intermittent conditions. Refer to Testing for Intermittent

Conditions and Poor Connections.

Symptom ListRefer to a symptom diagnostic procedure from the following

list in order to diagnose the symptom:

• Power Take-Off Does Not Engage

• Engine RPM Does Not Increase With

Power Take Off Engaged

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Power Take-Off Engaged

• Power Take-Off Indicator Inoperative

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

E-9

Power Take-Off (PTO)/Diagnostic Checks – PTO Does Not Engage

Circuit Description

This symptom chart will aid in diagnosing a failed Power

Take-Off (PTO) solenoid engagement. This diagnostic will not

expose a mechanical problem with the PTO itself. With the

ignition switch in RUN or START, voltage is supplied through

the Engine 1 fuse to the secondary side of the relay. When the

relay is energized the contacts will close and voltage will bepresent at the load engage switch. When the operator needs

the PTO he will close the load engage switch and current will

flow to the PTO solenoid. The solenoid has its own external

ground. When the operator turns the ignition switch to RUN,

voltage will be present at the PTO enable switch. When the

4. This step tests the Power Distribution circuits.

5. This step tests for voltage to the PTO solenoid.

6. This step tests for continuity on the ground circuit.

7. This step tests for voltage at the Ignition 1 Voltage

and PTO On Switch-Signal circuits.

8. This step tests the PTO control circuit.

9. This step tests for continuity on the PTO control circuit.

10. This step ensures that all of the PCM conditions for

engaging the PTO are met.

11. This step tests for ground on the Ignition 1 Voltage circuit.

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

PTO enable switch is turned to ON voltage will be present

at the coil of the relay and at the powertrain control module

(PCM). If the PCM sees all of the conditions necessary to en-

gage the solenoid, the PCM will ground the primary circuit of

the relay. The operation of a diesel system is the same except

that diesel engines have an engine control module (ECM) in-

stead of a PCM.

Test Description

The numbers below refer to the step numbers on the

diagnostic table.

2. This step tests engine controls and cruise control for

Diagnostic Trouble Codes (DTCs).3. This step tests for an open Engine 1 fuse.

12. This step tests for a ground on the PTO supply voltage

circuit.

13. This step tests the PTO solenoid for an internal ground.

14. This step tests for ground on the Ignition 1 Voltage circuit.

17. This step tests for voltage at the PTO On Switch-Signal

circuit.

18. This step tests for voltage at the Ignition 1 Voltage circuit.

19. This step tests the PTO Relay.

(continued on next page)

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Power Take-Off (PTO)/Diagnostic Checks – PTO Does Not Engage (continued)

Schematic Reference: Power take-off (PTO) Schematics

Step Action Yes No

1

Did you review the Power Take-Off(PTO) Description andOperations and perform thenecessary inspections?

Go to

Step 2

Go to Power

Take-Off (PTO)

Description and

Operation

2 Did you perform the DiagnosticSystem Check-Vehicle?

Go toStep 3

Go to DiagnosticSystem Check-

Vehicle

3Inspect the Engine 1 fuse.

Is the fuse open?

Go to

Step 11Go to Step 4

4

1. Turn the ignition switch to RUN.2. With a test lamp test for voltage Go to

Go to Step 24

Schematic Reference: Power take-off (PTO) Schematics (continued)

Step Action Yes No

7

1. Turn all switches OFF.

2. Disconnect the relay connector.

3. Turn the ignition switch to RUN.

4. Turn the PTO enable switch to ON.

Using a test lamp for voltage at theIgnition 1 and PTO On Switch-Signalcircuits at the relay connector.

Does the test lamp light on both tests?

Go to

Step 8Go to Step 16

1. Turn all switches OFF.

2. Connect the PTO relay.

3 T h i i i i h RUN

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(continued on next page)

4p g

to the Engine 1 fuse.

Does the test lamp light?Step 5

Go to Step 24

5

1. Ensure that all of the PTO engageconditions are met. Refer to

Power Take-off (PTO) Descriptionand Operation.

2. Turn the PTO enable switch to ON.

3. Turn the load engage switch to ON.

4. With a test lamp for voltage on thePTO Supply-Voltage circuit at thePTO solenoid.

Does the test lamp light?

Go to

Step 6Go to Step 7

6

With a DMM test for continuity

on the ground circuit at the PTO

solenoid.

Do you have continuity?

Go to

Step 29Go to Step 25

8

3. Turn the ignition switch to RUN.

4. Turn the PTO enable switch to ON.

5. Turn the load engage switch to ON.

6. Ensure that all PTO Engage

conditions are met. Refer toPower Take-Off (PTO) Descriptionand Operation.

7. Using a jumper wire ground thePTO Control circuit at the relay.

Does the PTO solenoid engage?

Go to

Step 9Go to Step 19

9

Test for continuity on the PTOControl circuit.

Does the PTO Control circuit havecontinuity?

Go to

Step 10Go to Step 26

10

Ensure that all of the PCM condi-

tions for engaging the PTO aremet. Refer to Power Take-OffDescription and Operation.

Are all of the conditions met?

Go toStep 31

Go to Step 27

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Power Take-Off (PTO)/Diagnostic Checks – PTO Does Not Engage (continued)

Schematic Reference: Power take-off (PTO) Schematics (continued)

Step Action Yes No

11

1. Remove the Engine 1 fuse.

2. Disconnect the PTO relay.

3. Using a DMM test for ground onthe Ignition 1 Voltage circuit atthe relay connector.

Is the PTO Supply-Voltage circuit grounded?

Go to

Step 22Go to Step 13

12

1. Disconnect the PTO solenoid con-nector.

2. Using a DMM test for ground onthe PTO Supply-Voltage circuit atthe relay connector.

Go to

Step 23Go to Step 29

Schematic Reference: Power take-off (PTO) Schematics (continued)

Step Action Yes No

16Do you have voltage on the Ignition 1

Voltage circuit?Go to

Step 17Go to Step 22

17

1. Remove the PTO enable switchfrom the instrument panel, butleave it connected to the harness.

2. Using a fused jumper wire, jumpfrom the Ignition 1 Voltage circuit tothe PTO On Switch-Signal circuitat the switch.

3. Using a test lamp test for voltageat the PTO On Switch-Signal circuitat the PTO relay connector.

Go to

Step 28Go to Step 18

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(continued on next page)

y

Is the PTO Supply-Voltage circuit grounded?

13

1. Disconnect both the positive andnegative leads of the PTO solenoid.

2. Using a DMM test for groundon the positive lead at the PTOsolenoid.

Is positive lead at the PTO solenoid grounded?

Go to

Step 23Go to Step 29

14

1. Remove the Engine 1 fuse.

2. Disconnect the PTO enable switch.

3. Using a DMM test for ground onthe Ignition 1 Voltage circuit atthe switch connector.

Is the Ignition 1 Voltage circuit

grounded?

Go to

Step 21Go to Step 15

15

1. Disconnect the PTO Relay.

2. Using a DMM test for ground onthe PTO On Switch-Signal circuitat the relay connector.

Is PTO On Switch-Signal circuit grounded?

Go to

Step 20Go to Step 28

Do you have voltage?

18

1. Turn the ignition switch OFF.

2. Turn the PTO enable switch OFF.

3. Disconnect the PTO enable switch.

4. Turn the ignition switch to RUN.

5. Using a test lamp test for voltageat the Ignition 1 Voltage circuit atthe switch connector.

Do you have voltage?

Go toStep 20

Go to Step 21

19

1. Disconnect the PTO Relay.

2. Using a fused jumper wire, jumpfrom the Ignition 1 Voltage circuitto the PTO Supply-Voltage cir-cuit at the relay connector.

Does the PTO Solenoid engage?

Go to

Step 30Go to Step 23

20

Repair the PTO on switch-signalcircuit for an open, short to groundor high resistance. Refer to WiringRepairs.

Did you complete the repair?

Go to

Step 32--

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

E-12

Power Take-Off (PTO)/Diagnostic Checks – PTO Does Not Engage (continued)

Schematic Reference: Power take-off (PTO) Schematics (continued)

Step Action Yes No

21

Repair the Ignition 1 Voltagecircuit for an open, short toground or high resistance.Refer to Wiring Repairs..

Did you complete the repair?

Go to

Step 32--

22

Repair the Ignition 1 Voltagecircuit for an open, short toground or high resistance.Refer to Wiring Repairs..

Did you complete the repair?

Go to

Step 32--

Repair the PTO supply-voltagecircuit for an open, short to

G t

Schematic Reference: Power take-off (PTO) Schematics (continued)

Step Action Yes No

28

Repair the PTO enable switch.Refer to Upfitter instructions.

Did you complete the repair?

Go to

Step 32--

29

Replace the PTO solenoid. Refer to

Upfitter instructions.Did you complete the repair?

Go to

Step 32 --

30

Replace the PTO relay. Refer toUpfitter instructions.

Did you complete the repair?

Go to

Step 32--

Replace the PCM or ECM. Referto Control Module Referencesf l t t d

Go to

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

23

p ,ground or high resistance.Refer to Wiring Repairs..

Did you complete the repair?

Go to

Step 32--

24

Repair the affected power distribu-

tion circuit for an open, short toground or high resistance.Refer to Wiring Repairs..

Did you complete the repair?

Go to

Step 32--

25

Repair the ground circuit for anopen, short to ground or high re-sistance. Refer to Wiring Repairs..

Did you complete the repair?

Go to

Step 32--

26

Repair the PTO control circuitfor an open, short to ground orhigh resistance. Refer to

Wiring Repairs..Did you complete the repair?

Go to

Step 32--

27

Repair the malfunctioning PTOsupport circuit.

Did you complete the repair?

Go to

Step 32--

31 for replacement, setup andprogramming.

Did you complete the repair?

Go to

Step 32--

32

Test drive the vehicle and operate

the PTO system as described inthe supporting text.

Does the symptom occur?

Go toStep 2

System OK

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

E-13

Power Take-Off (PTO)/Diagnostic Checks –

Engine RPM Does Not Increase with PTO Engaged

Circuit Description

When the power take-off (PTO) enable switch is turned to the

ON position and all PTO engage conditions are met, the en-

gine RPM should increase to the standby speed. When the

powertrain control module (PCM) receives the signal from the

PTO switch the PCM will send a signal to the throttle actuatorcontrol (TAC) module. The TAC module controls the TAC motor

which changes the position of the throttle. Communications

between the 2 modules is monitored and checked for accu-

racy by the PCM. Diagnostic trouble codes (DTCs) may be

recorded in the event of the failure. Diesel engines do not have

Schematic Reference: Power take-off (PTO) Schematics

and Cruise Control Schematics

Step Action Yes No

1

Did you review the PowerTake-Off (PTO) Description andOperation and perform thenecessary inspections

Go toStep 2

Go to

Power

Take-OffDescription

and

Operation

2

Verify the fault is present.

Does the system operate

Go to

Testing for

Intermittent

C diti

Go to

St 3

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a TAC system and the engine RPM is strictly controlled by the

engine control module (ECM).

Test DescriptionThe numbers below refer to the step numbers on the

diagnostic table.

2. This step checks for other system DTCs that may affect

the PTO.

6. This step tests the PCM for the PTO Enable signal.

7. This step tests the communication between the PCM

and the TAC module.

8. This step tests the PTO On Switch Signal circuit.9. This step tests the PTO On Switch-Signal circuit for an

open, high resistance or short to ground.

10. This step tests the Serial Data circuits for an open, high

resistance or short to ground.

(continued on next page)

Does the system operate normally?

Conditions

and Poor

Connections

Step 3

3Did you perform the Diag-nostic System Check-Vehicle?

Go to

Step 4

Go to

DiagnosticSystem

Check-

Vehicle

4Does the PTO solenoidengage?

Go to

Step 5

Go to

Power Take-

Off (PTO)

Does Not

Engage

5 Is the engine a diesel?Go to

Step 8Go to Step 6

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

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Power Take-Off (PTO)/Diagnostic Checks –

Engine RPM Does Not Increase with PTO Engaged (continued)

Schematic Reference: Power take-off (PTO) Schematics

and Cruise Control Schematics (continued)

Step Action Yes No

6

1. Start the engine.

2. Ensure that all of the PTO en-

gage conditions are met. Re-fer to Power Take-Off (PTO)Description and Operation.

3. Turn the PTO enable switchto ON.

4. Using a test lamp test forvoltage to the PCM on thePTO On Switch Signal circuit.

Go to

Step 7Go to Step 9

Schematic Reference: Power take-off (PTO) Schematics

and Cruise Control Schematics (continued)

Step Action Yes No

10

Test the Serial Data circuits foran open, high resistance or

short to ground. Refer to CruiseControl Schematics.

Did you find and correct thecondition?

Go toStep 13 Go to Step 11

11

Replace the TAC module.Refer to Control ModuleReferences for replacement,setup and programming.

Go to

Step 13--

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g

Does the test lamp illuminate?

7

Using the scan tool read theTAC/PCM communicationsignal on the Engine Controls

Data List.Does the scan tool display OK?

Go to

Diganostic

Starting Point– Cruise Control

Go to

Step 10

8

1. Depending on the specificdiesel engine application,disconnect the appropriateconnector at the ECM.

2. Turn the ignition swithcto RUN.

3. Turn the PTO enable switchto ON.

4. Using a test lamp test for volt-

age to the ECM on the PTOOn Switch Signal circuit.

Does the test lamp light?

Go to

Diganostic

Starting Point

– Engine

Controls

for the 6.6L

engine or Diag-

nostic Starting

Point – Engine

Controls for the

7.8L engine

Go to

Step 9

9

Test the PTO On Switch-Signal circuit for an open, highresistance or short to ground.

Did you find and correctthe condition?

Go to

Step 13

Go to

Step 12

p p g g

Did you complete the replacement?

Step 13

12

Replace the PCM or ECM.Refer to Control Module

References for replacement,setup and programming.

Did you complete the replacement?

Go toStep 13

--

13

Test drive the vehicle and oper-ate the PTO system as de-scribed in the supporting text.

Does the symptom occur?

Go to

Step 3System OK

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E-15

Power Take-Off (PTO)/Diagnostic Checks – PTO Indicator Inoperative

Circuit Description

This symptom chart will aid in diagnosing a failed Power Take-

Off (PTO) indicator. This diagnostic assumes that the PTO

solenoid is functional and only the indicator is failing to come

on. When the ignition switch is in RUN, voltage should be

present on the Ignition 1 Voltage circuit. When the PTO switch

is turned to ON, the LED will illuminate. The indicator has itsown ground circuit. The PTO enable switch indicator and PTO

solenoid have different ground circuits. Therefore, the indicator

may be illuminated when the PTO solenoid is disengaged.

Test Description

Schematic Reference: Power take-off (PTO) Schematics

Step Action Yes No

1

Did you review the PowerTake-Off (PTO) Descriptionand Operation and performthe necessary inspections

Go to

Step 2

Go to

Power Take-

Off Descrip-

tion and

Operation

2

Verify the fault is present.

Does the system operate normally?

Go to

Testing for

Intermittent

Conditions

and Poor

Connections

Go to

Step 3

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The numbers below refer to the step numbers on the

diagnostic table.

4. This step tests the PTO On switch signal circuit.

5. This step tests the ground circuit.

(continued on next page)

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

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Power Take-Off (PTO)/Diagnostic Checks – PTO Indicator Inoperative (continued)

Schematic Reference: Power take-off (PTO) Schematics (continued)

Step Action Yes No

6

Repair the open or high restis-tance in both PTO On switchSignal circuit. Refer to WiringRepairs.

Did you complete the repair?

Go to

Step 9--

7

Repair the open or high re-sistance in the ground circuit.Refer to Wiring Repairs.

Did you complete the repair?

Go to

Step 9--

8

Replace the PTO Enableswitch. Refer to Upfittersinstructions.

Go to

St 9--

Schematic Reference: Power take-off (PTO) Schematics (continued)

Step Action Yes No

3Does the PTO solenoidengage?

Go to

Step 4

Go to

Power

Take-Off

(PTO) Does

Not Engage

1. Turn the ignition switch toRUN.

2. Turn the PTO enable switchto ON.

3. Ensure that the condi-tions for engaging the PTOsolenoid are met. Refer to

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8

Did you complete the replacement?

Step 9

9

Test drive the vehicle andoperate the PTO system asdescribed in the supportingtest.

Does the symptom occur?

Go toStep 3

System OK

4

Power Take-Off (PTO) De-scription and Operation.

4. Remove the PTO switch,but leave it connected to

the harness.5. Using a test lamp test for

voltage at the PTO OnSwitch Signal circuit at theswitch.

Does the test lamp illuminate?

Go to

Step 5

Go to

Step 6

5

1. Turn the PTO enable switchto OFF.

2. Turn the ignition switch OFF.

3. Disconnect the switch.

4. Using a DMM test for con-

tinuity on the ground circuitat the switch connector.

Do you have continuity?

Go to

Step 8Go to Step 7

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E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

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Power Take-Off (PTO)/Schematics – L18, LMM, LF8 (2 of 2)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

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Power Take-Off (PTO)/Schematics – LF6

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

E-20

Vehicle – Diagnostic System Check

1. Before beginning vehicle diagnosis, the following prelimi-

nary inspections/tests must be performed:

• Ensure that the battery is fully charged.

Refer to Battery Inspection/Test.

• Ensure that the battery cables are clean and tight.

• Inspect for any open fuses. Refer to Power DistributionSchematics and Electrical Center Identification Views.

• Ensure that the grounds are clean, tight, and in the correct

location. Refer to Ground Distribution Schematics and

Harness Routing Views.

• Inspect the easily accessible systems or the visible sys-

f b i d di i h

10. Ignition ON, Engine OFF, verify communication with all

of the control modules on the vehicle. Refer to Data Link

References for information on the modules you should

expect to communicate.

If the scan tool does not communicate with one or more of the

expected control modules, refer to Data Link References.

11. Attempt to start the engine. Verify that the engine cranks.

If the engine does not crank, refer to Symptoms -

Engine Electrical.

12. Important: For the 7.2L Caterpillar engine, refer to the

appropriate Caterpillar Service Manual.

13 A h i V if h i

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

tem components for obvious damage or conditions that

could cause the concern. This would include checking to

ensure that all connections/connectors are fully seated

and secured. • Inspect for aftermarket devices that could affect the

operation of the system. Refer to Checking Aftermarket

Accessories.

• Search for applicable service bulletins.

If the preceding inspections/tests resolve the concern, go to

Diagnostic Repair Verification.

9. Install a scan tool. Verify that the scan tool powers up.

If the scan tool does not power up, refer to Scan Tool DoesNot Power Up.

13. Attempt to start the engine. Verify the engine starts

and idles.

If the engine does not start and idle, refer to one of

the following:

• Engine Cranks but Does Not Run for the

6.6L (LMM) engine

• Engine Cranks but Does Not Run for the

7.8L (LF8) engine

• Engine Cranks but Does Not Run for the

8.1L engine

17. Important: For the 7.2L Caterpillar engine, refer to the

appropriate Caterpillar Service Manual.

18. Important: Do not clear any DTCs unless instructed to

do so by a diagnostic procedure.

(continued on next page)

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Checking Aftermarket Accessories

Do not connect aftermarket accessories into the

following circuits:

Caution: Refer to SIR Caution in the Preface section.

• SIR circuits, all such circuits are indicated on circuit dia-

grams with the SIR symbol.

Notice: The OBD II symbol is used on the circuit diagramsin order to alert the technician that the circuit is essential for

proper OBD II emission control circuit operation. Any circuit

which fails and causes the malfunction indicator lamp (MIL) to

turn ON, or causes emissions-related component damage, is

identified as an OBD II circuit.

• OBD II circuits, all such circuits are indicated on circuit dia-

Possible causes of vehicle problems related to aftermarket

accessories include:

• Power feeds connected to points other than the battery

• Antenna location

• Transceiver wiring located too close to vehicle electronic

modules or wiring• Poor shielding or poor connectors on antenna feed line

• Check for recent service bulletins detailing installation

guidelines for aftermarket accessories.

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

OBD II circuits, all such circuits are indicated on circuit dia

grams with the OBD II symbol.

Always check for aftermarket accessories (non-OEM) as the

first step in diagnosing electrical problems. If the vehicle is soequipped, disconnect the system to verify that these add-on

accessories are not the cause of the problems.

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

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Wiring Repairs/Testing for Intermittent Conditions and Poor Connections

Tools Required

• J 35616 GM-Approved Terminal Test Kit

• J-38125 Terminal Repair Kit

When the condition is not currently present, but is indicated

in DTC history, the cause may be intermittent. An intermittent

may also be the cause when there is a customer complaint,but the symptom cannot be duplicated. Refer to the Symptom

Table of the system that is suspect of causing the condition

before trying to locate an intermittent condition.

Most intermittent conditions are caused by faulty electrical

connections or wiring. Inspect for the following items:

• Wiring broken inside the ins lation

• Refer to Inducing Intermittent Fault Conditions in order to

duplicate the conditions required, in order to verify the

customer concern.

• Refer to Testing for Electrical Intermittents for test

procedures to detect intermittent open, high resistance,

short to ground, and short to voltage conditions.

• Refer to Scan Tool Snapshot Procedure for advanced

intermittent diagnosis and Vehicle Data Recorder operation.

Testing for Proper Terminal Contact

It is important to test terminal contact at the component and

i li t b f l i t t

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• Wiring broken inside the insulation

• Poor connection between the male and female terminal

at a connector

• Poor terminal to wire connection--Some conditions which

fall under this description are poor crimps, poor solder

joints, crimping over the wire insulation rather than the wire

itself, and corrosion in the wire to terminal contact area, etc.

• Pierced or damaged insulation can allow moisture to enter

the wiring causing corrosion. The conductor can corrode

inside the insulation, with little visible evidence. Look for

swollen and stiff sections of wire in the suspect circuits.

• Wiring which has been pinched, cut, or its insulation rubbed

through may cause an intermittent open or short as the bare

area touches other wiring or parts of the vehicle.

• Wiring that comes in contact with hot or exhaust

components

any inline connectors before replacing a suspect component.

Mating terminals must be inspected to ensure good terminal

contact. A poor connection between the male and female

terminal at a connector may be the result of contamination ordeformation.

Contamination may be caused by the connector halves being

improperly connected. A missing or damaged connector seal,

damage to the connector itself, or exposing the terminals to

moisture and dirt can also cause contamination. Contamina-

tion, usually in the underhood or underbody connectors, leads

to terminal corrosion, causing an open circuit or intermittently

open circuit.

(continued on next page)

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

E-24

Testing for Proper Terminal Contact (continued)

Wiring Repairs/Testing for Intermittent Conditions and Poor Connections (continued)

Deformation is caused by probing the mating side of a con-

nector terminal without the proper adapter. Always use the

J 35616 when probing connectors. Other causes of terminal

deformation are improperly joining the connector halves, or

repeatedly separating and joining the connector halves.

Deformation, usually to the female terminal contact tang, canresult in poor terminal contact causing an open or intermit-

tently open circuit.

Testing for Proper Terminal Contact in

Bussed Electrical Centers (BEC)

It is very important to use the correct test adapter when test-

Flat Wire (Dock and Lock) Connectors

There are no serviceable parts for flat wire (dock and lock)

connectors on the harness side or the component side.

Follow the procedure below in order to test terminal contact:

1. Remove the component in question.

2. Visually inspect each side of the connector for signs of con-tamination. Avoid touching either side of the connector as oil

from your skin may be a source of contamination as well.

3. Visually inspect the terminal bearing surfaces of the flat wire

circuits for splits, cracks, or other imperfections that could

cause poor terminal contact. Visually inspect the component

side connector to ensure that all of the terminals are uniform

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

ing for proper terminal contact of fuses and relays in a bussed

electrical center (BEC). Use J-35616-35 to test for proper

terminal contact. Failure to use J-35616-35 can result in

improper diagnosis of the BEC.

Follow the procedure below in order to test terminal contact:

1. Separate the connector halves.

2. Visually inspect the connector halves for contamination.

Contamination may result in a white or green build-up within

the connector body or between terminals. This causes high

terminal resistance, intermittent contact, or an open circuit.

An underhood or underbody connector that shows signs of

contamination should be replaced in its entirety: terminals,

seals, and connector body.

3. Using an equivalent male terminal from the J-38125, test

that the retention force is significantly different between a

good terminal and a suspect terminal. Replace the female

terminal in question.

side connector to ensure that all of the terminals are uniform

and free of damage or deformation.

4. Insert the appropriate adapter from the on the flat wire

harness connector in order to test the circuit in question.

Control Module/Component Voltage and Grounds

Poor voltage or ground connections can cause widely varying

symptoms.

• Test all control module voltage supply circuits. Many ve-

hicles have multiple circuits supplying voltage to a control

module. Other components in the system may have sepa-

rate voltage supply circuits that may also need to be tested.Inspect connections at the module/component connectors,

fuses, and any intermediate connections between the volt-

age source and the module/component. A test lamp or a

DMM may indicate that voltage is present, but neither tests

the ability of the circuit to carry sufficient current.

(continued on next page)

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

E-25

Ensure that the circuit can carry the current necessary to

operate the component. Refer to Circuit Testing and Power

Distribution Schematics.

• Test all control module ground and system ground circuits.

The control module may have multiple ground circuits. Oth-

er components in the system may have separate grounds

that may also need to be tested. Inspect grounds for cleanand tight connections at the grounding point. Inspect the

connections at the component and in splice packs, where

applicable. Ensure that the circuit can carry the current nec-

essary to operate the component. Refer to Circuit Testing

and Ground Distribution Schematics.

• If the intermittent is related to cold, review the data for

the following:

- Low ambient temperatures--In extremely low

temperatures, ice may form in a connection or

component. Inspect for water intrusion.

- The condition only occurs on a cold start. - The condition goes away when the vehicle warms up.

• Information from the customer may help to determine if the

trouble follows a pattern that is temperature related.

• If temperature is suspected of causing an intermittent fault

condition, attempt to duplicate the condition. Refer to

I d i I t itt t F lt C diti i d t d li t

Wiring Repairs/Testing for Intermittent Conditions and Poor Connections (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab(continued on next page)

Temperature Sensitivity

• An intermittent condition may occur when a component/ connection reaches normal operating temperature. The

condition may occur only when the component/connection

is cold, or only when the component/connection is hot.

• Freeze Frame, Failure Records, Snapshot, or Vehicle Data

Recorder data may help with this type of intermittent condi-

tion, where applicable.

• If the intermittent is related to heat, review the data for a

relationship with the following:

- High ambient temperatures - Underhood/engine generated heat

- Circuit generated heat due to a poor connection, or

high electrical load

- Higher than normal load conditions, towing, etc.

Inducing Intermittent Fault Conditions in order to duplicate

the conditions required.

Electromagnetic Interference (EMI)and Electrical Noise

Some electrical components/circuits are sensitive to electro-

magnetic interference (EMI) or other types of electrical noise.

Inspect for the following conditions:

• A misrouted harness that is too close to high voltage/high

current devices such as secondary ignition components,

motors, generator etc--These components may induce

electrical noise on a circuit that could interfere with normalcircuit operation.

• Electrical system interference caused by a malfunctioning

relay, or a control module driven solenoid or switch – These

conditions can cause a sharp electrical surge. Normally, the

condition will occur when the malfunctioning component

is operating.

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

E-26

Wiring Repairs/Testing for Intermittent Conditions and Poor Connections (continued)

• Improper installation of non-factory or aftermarket add on

accessories such as lights, 2-way radios, amplifiers, electric

motors, remote starters, alarm systems, cell phones, etc-

-These accessories may lead to interference while in use,

but do not fail when the accessories are not in use.

Refer to Checking Aftermarket Accessories.

• Test for an open diode across the A/C compressor clutchand for other open diodes. Some relays may contain a

clamping diode.

• The generator may be allowing AC noise into the

electrical system.

Incorrect Control Module

• There are only a few situations where reprogramming a con-

trol module is appropriate:

- A new service control module is installed.

- A control module from another vehicle is installed.

- Revised software/calibration files have been released

for this vehicle.

Important: DO NOT re-program the control module with the

SAME software/calibration files that are already present in the

control module. This is not an effective repair for any type of

concern.

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

• Verify that the control module contains the correct software/

calibration. If incorrect programming is found, reprogram the

control module with the most current software/calibration.

Refer to Control Module References for replacement, setup,

and programming.

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

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Wiring Repairs/Flat Wire Repairs

Notice: The flat wire within the flex wiring harness is not

serviceable. If an open or short exists within the flex wiring

harness the complete harness must be replaced.

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E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

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Wiring Repairs/GMLAN Wiring Repairs

Tools Required

J-38125 Terminal Repair Kit

The GM Local Area Network (GMLAN) System requires spe-

cial wiring repair procedures due to the sensitive nature of

the circuitry. Follow the specific procedures and instructions

when working on GMLAN connectors and terminals.The tool kit J-38125 contains the following items in order to

repair the GMLAN wiring:

• DuraSeal splice sleeves

• A wire stripping tool

• J 38125-8 Crimping Tool (GM P/N 12085115)

GMLAN Repairs

Important: When making a repair to any GMLAN network,

the original wire length after the repair must be the same

length as before the repair. If the network is a twisted pair, the

twist must be maintained after the repair is completed.

GMLAN has 2 types of networks, low speed and high speed.Low speed GMLAN has a single wire and works at slow

speeds. High speed GMLAN has 2 wires in a twisted pair and

works at higher speeds. For more information on GMLAN,

refer to Data Link Communications Description and Operation.

GMLAN C t T i l R i

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

J 38125 8 Crimping Tool (GM P/N 12085115)

• J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)

The DuraSeal splice sleeves have the following

2 critical features:

• A special heat shrink sleeve environmentally seals

the splice. The heat shrink sleeve contains a sealing

adhesive inside.

• A cross hatched (knurled) core crimp provides necessary

contact integrity for the sensitive, low energy circuits.

The J-38125 also serves as a generic terminal repair kit.

The kit contains the following items:

• A large sampling of common electrical terminals• The correct tools in order to attach the terminals to

the wires

• The correct tools in order to remove the terminals from

the connectors

(continued on next page)

GMLAN Connector Terminal Repair

Important: A service terminal can be used to replace dam-

aged connector terminals for both high speed and low speedGMLAN systems. When making a connector terminal repair on

a GMLAN high speed system with twisted pair wires, do not

untwist the wires more than necessary to make the repair.

The terminals in the GMLAN system are made of a special

metal. This metal provides the necessary contact integrity for

the sensitive, low energy circuits. These terminals are avail-

able in the J-38125. If the individual terminals are damaged on

any GMLAN connection, use the appropriate connector repair

procedure in order to repair the terminal. Refer to Connector

Repairs for the appropriate connector repair procedure.

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Wiring Repairs/GMLAN Wiring Repairs (continued)

GMLAN Wire Repair

Important: Refer to Wiring Repairs in order to determine the

correct wire size for the circuit you are repairing. You must

obtain this information in order to ensure circuit integrity.

If a wire is damaged, repair the wire by splicing in a new sec-

tion of wire of the same gage size (0.5 mm, 0.8 mm, 1.0 mm,etc.). Use the DuraSeal splice sleeves and splice crimping tool

from the J-38125. Use the following wiring repair procedures

in order to ensure the integrity of the sealed splice.

Splice Sleeve ColorCrimp Tool Nest

Color

Wire Gage mm2 /

(AWG)

Salmon (Yellow Pink)

• Do not use the DuraSeal splice sleeve to form a splice

with more than 2 wires coming together.

4. Cut as little wire off the harness as possible. You may

need the extra length of wire in order to change the

location of a splice.

Adjust splice locations so that each splice is at least

40 mm (1.5 in) away from the other splices, harnessbranches, or connectors.

5. Strip the insulation:

• When adding a length of wire to the existing harness,

use the same size wire as the original wire.

• Perform one of the following items in order to nd the

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

(continued on next page)

Salmon (Yellow-Pink)12089189

Red (1) 0.035-0.8/(18-20)

Blue12089190

Blue (2) 1.0-2.0/(14-16)

Yellow12089191

Yellow (3) 3.0-5.0/(10-12)

Green88988379

Red (1) 0.22-0.35/(22-24)

Important: You must perform the following procedures in

the listed order. Repeat the procedure if any wire strands are

damaged. You must obtain a clean strip with all of the wire

strands intact.

1. Open the harness by removing any tape:• Use a sewing seam ripper (available from sewing supply

stores) in order to cut open the harness in order to avoid

wire insulation damage.

• Use the DuraSeal splice sleeves on all types of insulation

except coaxial.

g

correct wire size:

- Find the wire on the schematic and convert the metric

size to the equivalent American wire gage (AWG) size.- Use an AWG wire gage.

- If you are unsure of the wire size, begin with the largest

opening in the wire stripper and work down until achiev-

ing a clean strip of the insulation.

• Strip approximately 7.5 mm (0.313 in) of insulation from

each wire to be spliced.

• Do not nick or cut any of the strands. Inspect the stripped

wire for nicks or cut strands.

• If the wire is damaged, repeat this procedure after remov-

ing the damaged section.

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

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13. Select the proper DuraSeal splice sleeve according to

the wire size. Refer to the above table at the beginning of

the repair procedure for the color coding of the DuraSeal

splice sleeves and the crimp tool nests.

16. Insert the wire into the splice sleeve barrel until the

wire hits the barrel stop.

17. Tightly close the handles of the crimp tool until the

crimper handles open when released.

The crimper handles will not open until you apply the

Wiring Repairs/GMLAN Wiring Repairs (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

14. Use the Splice Crimp Tool from the J-38125 in order

to position the DuraSeal splice sleeve in the propercolor nest of the Splice Crimp Tool. The crimp tool

has three nests, 1 is for the salmon and green splice

sleeve, 2 is for the blue splice sleeve, and 3 is for the

yellow splice sleeve.

15. Place the DuraSeal splice sleeve in the nest. Ensure that

the crimp falls midway between the end of the barrel and

the stop. The sleeve has a stop (3) in the middle of the

barrel (2) in order to prevent the wire (1) from going fur-

ther. Close the hand crimper handles slightly in order to

firmly hold the DuraSeal splice sleeve in the proper nest.

p p y pp y

proper amount of pressure to the splice sleeve. Repeat

steps 4 and 5 for the opposite end of the splice.

18. Using the heat torch, apply heat to the crimped area

of the barrel.

19. Start in the middle and gradually move the heat barrel tothe open ends of the tubing:

• The tubing will shrink completely as the heat is moved

along the insulation.

• A small amount of sealant will come out of the end of

the tubing when sufficient shrinkage is achieved.

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

E-31

Wiring Repairs/High Temperature Wiring Repairs

Tools Required

J-38125 Terminal Repair Kit

High Temperature Wiring

Wiring that is exposed to high temperatures, 135°C (275°F)

or higher, for prolonged periods of time may use materials i.e.wires, connectors, and shielding that has a higher heat rating

than typical wiring. When making a repair in a high tempera-

ture area observe the following:

• Use high temperature bulk wire rated at 150°C (302°F)

continuous temperature to replace any damaged wire.

R l h t hi ldi th t i d

mine if an area is exposed to excessive heat before making

a wiring repair. Obvious areas of consideration would be any

area located near the exhaust manifolds, catalytic converter,

and exhaust pipes.

The J-38125 contains much of the material you will need to

perform repairs on areas exposed to high heat. The kit con-

tains the following items:• DuraSeal splice sleeves to crimp and seal connections

• High temperature SCT1 shrink tubing to protect the splice sleeves

• A large sampling of common electrical terminals

• The correct crimp tool to attach the terminals to the wires

• The correct tools to remove the terminals from the connectors

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab(continued on next page)

• Replace any heat shielding that is removed.

• Cover any DuraSeal splice sleeves with SCT1 shrink tubing

(available in the J-38125 Terminal Repair kit).

• After making a wiring repair, ensure that the location of

the wiring is not moved closer to the heat source.

Identifying High Temperature Wiring

Wiring that is exposed to high temperature, 135°C (275°F)

or higher, for prolonged periods of time need special con-

siderations when making wiring repairs. Areas that may be

exposed to higher temperatures can be identified by heat

resistant materials that are being used in those areas. Thesematerials may include heat reflective tape, moon tape, and

high temperature shrink tubing. Also conduit and other pro-

tective coverings may be used. Because conduit or similar

coverings are used throughout the vehicle regardless of the

temperature, it may be necessary for the technician to deter-

The correct tools to remove the terminals from the connectors

The J-38125 does not contain wire that is suitable to high

temperature exposure. Use high temperature bulk wire rated

at 150°C (302°F) continuous temperature of the same or largergage size as the original wire when repair damage wire. Also

replace any reflective tape that you remove during the repair.

High Temperature Wire Repair

Important: Refer to Wiring Repairs in order to determine the

correct wire size for the circuit you are repairing. You must

obtain this information in order to ensure circuit integrity.

If any wire except the pigtail is damaged, repair the wire bysplicing in a new section of wire rated at 150°C (302°F)

continuous temperature rating of the same gage size

(0.5 mm, 0.8 mm, 1.0 mm etc.).

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

E-32

Wiring Repairs/High Temperature Wiring Repairs (continued)

Use the DuraSeal splice sleeves and splice crimping tool from the

J-38125 and then encapsulate the splice sleeve using the high

temperature SCT1 shrink tubing. Use the following wiring repair

procedures in order to ensure the integrity of the sealed splice.

Splice Sleeve ColorCrimp Tool Nest

Color

Wire Gage mm2 /

(AWG)

Salmon (Yellow-Pink)12089189

Red (1) 0.035-0.8/(18-20)

Blue12089190

Blue (2) 1.0-2.0/(14-16)

Yellow12089191

Yellow (3) 3.0-5.0/(10-12)

Green88988379

Red (1) 0.22-0.35/(22-24)

4. Strip the insulation:

• When adding a length of wire to the existing harness,

use the same size wire as the original wire.

• Perform one of the following items in order to nd the

correct wire size:

- Find the wire on the schematic and convert the metric

size to the equivalent american wire gage (AWG) size.

- Use an AWG wire gage.

- If you are unsure of the wire size, begin with the

largest opening in the wire stripper and work down

until achieving a clean strip of the insulation.

• Strip approximately 7.5 mm (0.313 in) of insulation from

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

(continued on next page)

88988379

Important: You must perform the following procedures in

the order listed. Repeat the procedure if any wire strands are

damaged. You must obtain a clean strip keeping all of the wire

strands intact.

1. Open the harness by removing any tape.

2. Use a sewing seam ripper, available from sewing supply

stores, in order to cut open the harness in order to avoid

wire insulation damage.

3. Cut as little wire off the harness as possible. You may

need the extra length of wire in order to change the

location of a splice. Adjust splice locations so that each splice is at least

40 mm (1.5 in) away from the other splices, harness

branches, or connectors.

Strip approximately 7.5 mm (0.313 in) of insulation from

each wire to be spliced.

• Do not nick or cut any of the strands. Inspect the

stripped wire for nicks or cut strands.

• If the wire is damaged, repeat this procedure after re-

moving the damaged section.

12. Slide a section of high temperature SCT1 shrink tubing

down the length of wire to be spliced. Ensure that the

shrink tubing will not interfere with the splice procedure.

13. Select the proper DuraSeal splice sleeve according to

the wire size. Refer to the above table at the beginning of

the repair procedure for the color coding of the DuraSeal

splice sleeves and the crimp tool nests.

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

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Wiring Repairs/High Temperature Wiring Repairs (continued)

14. Use the Splice Crimp Tool from the J-38125 in order to

position the DuraSeal splice sleeve in the proper color

16. Insert the wire into the DuraSeal splice sleeve barrel

until the wire hits the barrel stop.

17. Tightly close the handles of the crimp tool until the

crimper handles open when released.

The crimper handles will not open until you apply the

proper amount of pressure to the splice sleeve. Repeat

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab(continued on next page)

position the DuraSeal splice sleeve in the proper color

nest of the Splice Crimp Tool. The crimp tool has three

nests, 1 is for the salmon and green splice sleeve, 2 is

for the blue splice sleeve, and 3 is for the yellow splicesleeve.

15. Place the DuraSeal splice sleeve in the nest. Ensure that

the crimp falls midway between the end of the barrel and

the stop. The sleeve has a stop (3) in the middle of the

barrel (2) in order to prevent the wire (1) from going fur-

ther. Close the hand crimper handles slightly in order to

firmly hold the DuraSeal splice sleeve in the proper nest.

proper amount of pressure to the splice sleeve. Repeat

steps 4 and 5 for the opposite end of the splice.

18. Using the heat torch, apply heat to the crimped area

of the barrel.

19. Gradually move the heat barrel to the open end ofthe tubing:

• The tubing will shrink completely as the heat is moved

along the insulation.

• A small amount of sealant will come out of the end of

the tubing when sufficient shrinkage is achieved.

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

E-34

Wiring Repairs/High Temperature Wiring Repairs (continued)

21.

22. Center the high temperature SCT1 shrink tube over the

DuraSeal splice sleeve.

23. Using the heat torch, apply heat to the high temperature

heat shrink tubing.

24. Gradually move the heat from the center to the open end

of the tubing:

• The tubing will shrink completely as the heat is moved

along the insulation.

• A small amount of sealant will come out of the end of

the tubing when sufficient shrinkage is achieved.

26. Replace any reflective tape and clips that may have been

removed during the repair.

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

E-35

Wiring Repairs/Heated Oxygen Sensor Wiring Repairs

Tools Required

J-38125 Terminal Repair Kit

Notice: Do not solder repairs under any circumstances as this

could result in the air reference being obstructed.

If the heated oxygen sensor pigtail wiring, connector, or ter-

minal is damaged the entire oxygen sensor assembly must be

replaced. Do not attempt to repair the wiring, connector, or

terminals. In order for the sensor to function properly it must

have a clean air reference. This clean air reference is obtained

by way of the oxygen sensor signal and heater wires. Any at-

tempt to repair the wires, connectors or terminals could result

in the obstruction of the air reference and degrade oxygen

sensor performance.

The following guidelines should be used when servicing the

heated oxygen sensor:

• Do not apply contact cleaner or other materials to the sen-

sor or vehicle harness connectors. These materials may get

into the sensor, causing poor performance. Also, the sensor

pigtail and harness wires must not be damaged in such a

way that the wires inside are exposed. This could providea path for foreign materials to enter the sensor and cause

performance problems.

• Neither the sensor nor vehicle lead wires should be bent

sharply or kinked. Sharp bends, kinks, etc., could block the

reference air path through the lead wire.

• Do not remove or defeat the oxygen sensor ground wire

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

sensor performance. yg g

(where applicable). Vehicles that utilize the ground wire sen-

sor may rely on this ground as the only ground contact to

the sensor. Removal of the ground wire will also cause poorengine performance.

• To prevent damage due to water intrusion, be sure that the

peripheral seal remains intact on the vehicle harness con-

nector.

The engine harness may be repaired using the J-38125.

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

E-36

Wiring Repairs/Splicing Copper Wire Using Splice Clips

Important: When making a splice in an area that may be ex-

posed to moisture use a crimp and seal splice sleeve instead

of a Splice Clip. Refer to Splicing Copper Wire Using Splice

Sleeves.

Tools Required

J-38125 Terminal Repair Kit

1. Open the harness.

• If the harness is taped, remove the tape.

• To avoid wiring insulation damage, use a sewing ripper in

order to cut open the harness.

• If the harness has a black plastic conduit pull out the

Important: Use cross-linked polyethylene wire to replace

PVC, but do not replace cross-linked polyethylene with PVC.

11. Strip the insulation.

• Select the correct size opening in the wire stripper or work

down from the largest size.

• Strip approximately 7.5 mm (5/16 in) of insulation from

each wire to be spliced.

13. Select the proper clip to secure the splice. Follow the in-

structions in the J-38125 in order to determine the proper

clip size crimp tool and anvil.

14. Overlap the 2 stripped wire ends and hold them between

thumb and forefinger.

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

• If the harness has a black plastic conduit, pull out the

desired wire.

4. Cut the wire.

• Cut as little wire off the harness as possible.

• Ensure that each splice is at least 40 mm (1.5 in) away

from other splices, harness branches and connectors.

This helps prevent moisture from bridging adjacent

splices and causing damage.

6. Select the proper size and type of wire.

• The wire must be of equal or greater size than the original

(except fusible link).

• The wire insulation must have the same or higher temperature rating.

- Use general purpose insulation for areas that are not

subject to high temperatures.

- Use a cross-linked polyethylene insulated wire for areas

where high temperatures are expected.

15. Center the splice clip (2) over the stripped wires (1)and hold the clip in place.

• Ensure that the wires extend beyond the clip in

each direction.

• Ensure that no insulation is caught under the clip.

(continued on next page)

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

E-37

Wiring Repairs/Splicing Copper Wire Using Splice Clips (continued)

17.

21. Apply 60/40 rosin core solder to the opening in the back

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

18. Center the crimp tool over the splice clip and wires.

19. Apply steady pressure until the crimp tool closes.

Ensure that no strands of wire are cut.

20. Crimp the splice on each end (2).

21. Apply 60/40 rosin core solder to the opening in the back

of the clip. Follow the manufacturer’s instructions for the

solder equipment.

22. Tape the splice. Roll on enough tape in order to duplicate

the thickness of the insulation on the existing wires.

23. Additional tape can be applied to the wire if the wire does

not belong in a conduit or another harness covering. Use

a winding motion in order to cover the first piece of tape.

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E-39

Wiring Repairs/Splicing Copper Wire Using Splice Sleeves (continued)

12. Strip the insulation.

• Select the correct size opening in the wire stripper

or work down from the largest size.

• Strip approximately 7.5 mm (5/16 in) of insulation

from each wire to be spliced (1).

14. Select the proper DuraSeal splice sleeve (2) and the

required crimp nest tool. Refer to the Crimp and Seal

Splice Table.

15. Place the DuraSeal splice sleeve in the J-38125-8

(GM P/N 12085115) crimp tool nest so that the crimp

falls at point 1 on the splice.

16. Close the hand crimper handles slightly in order to

hold the DuraSeal splice sleeve firmly in the proper

18. Close the handles of the J-38125-8 (GM P/N 12085115),

until the crimper handles open when released. The

crimper handles will not open until the proper amount

of pressure is applied to the splice sleeve.

19. Shrink the insulation around the splice.

• Using the heat torch, apply heat to the crimped area

of the barrel.

• Gradually move the heat barrel to the open end of

the tubing.

- The tubing will shrink completely as the heat is

moved along the insulation.

- A small amount of sealant will come out of the end

of the tubing when sufficient shrinkage is achieved

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

hold the DuraSeal splice sleeve firmly in the proper

crimp tool nest.

17. Insert the wires into the DuraSeal splice sleeve until thewire hits the barrel stop. The splice sleeve has a stop in

the middle of the barrel in order to prevent the wire from

passing through the splice (3).

of the tubing when sufficient shrinkage is achieved.

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E-40

Wiring Repairs/Splicing Twisted or Shielded Cable

Twisted/shielded cable is used in order to protect wiring

from electrical noise. Two-conductor cable of this construc-

tion is used between the radio and the Delco-Bose® speaker/

amplifier units and other applications where low level,

sensitive signals must be carried. Follow the instructions

below in order to repair the twisted/shielded cable.

1 Remove the outer jacket (1) Use care not to cut into the

4. Re-assemble the cable.

• Rewrap the conductors with the mylar tape. If the mylar

tape is damaged, use 3M product AL-36FR to replace the

damaged mylar tape.

• Use caution not to wrap the drain wire in the tape (1).

• Follow the splicing instructions for copper wire and splice

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

1. Remove the outer jacket (1). Use care not to cut into the

drain wire of the mylar tape.

2. Unwrap the tape. Do not remove the tape. Use the tapein order to rewrap the twisted conductors after the splice

is made.

3. Prepare the splice. Untwist the conductors and follow thesplicing instructions for copper wire. Staggering the splices

by 65 mm (2.5 in) is recommended.

Important: Apply the mylar tape with the aluminum

side inward. This ensures good electrical contact with

the drain wire.

the drain wire.

• Wrap the drain wire around the conductors and tape with

electrical tape to replace the outer insulation.

8.

9. Tape over the entire cable. Use a winding motion when you

apply the tape.

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Wiring Repairs / SIR/SRS Wiring Repairs

Tools Required

J-38125 Terminal Repair Kit

The Supplemental Inflatable Restraint (SIR) System/Supple-

mental Restraint System (SRS) requires special wiring repair

procedures due to the sensitive nature of the circuitry. Follow

the specific procedures and instructions when working with

the SIR/SRS, and the wiring components, such as connectorsand terminals.

Important: Do not use the terminals in the kit in order to

replace damaged SIR/SRS system terminals. Use either an

SIR/SRS pigtail or a terminated lead from the SIR Repair

Kit Tray.

The tool kit J-38125 contains the following items:

The J-38125 also serves as a generic terminal repair kit.

The kit contains the following items:

• A large sampling of common electrical terminals

• The correct tools in order to attach the terminals to

the wires

• The correct tools in order to remove the terminals from

the connectors

SIR/SRS Connector Repair (Plastic Body and Terminal

Metal Pin)

The terminals in the SIR/SRS system are made with a special

plating. This plating provides the necessary contact integrity

for the sensitive low energy circuits Use theJ 38125 SIR/SRS

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

The tool kit J 38125 contains the following items:

• DuraSeal splice sleeves, in order to repair the SIR/SRS

wiring

• A special crimping tool

• A heat torch

• An instruction manual

The DuraSeal splice sleeves have the following 2

critical features:

• A special heat shrink sleeve environmentally seals the

splice. The heat shrink sleeve contains a sealing adhesive

inside.

• A cross hatched (knurled) core crimp provides the

necessary low resistance contact integrity for these

sensitive, low energy circuits.

(continued on next page)

for the sensitive, low energy circuits. Use theJ-38125 SIR/SRS

Terminal Repair Kit for repairing SIR/SRS terminals and con-

nectors. Do not substitute any other terminals for those in the

repair kit.

The J-38125 SIR/SRS Terminal Repair Kit contains:

• Various terminated leads for sensing and diagnostic mod-

ule (SDM) terminal replacement

• Various connector positive assurance (CPA) locks for

SIR/SRS connectors

• Base of steering column pigtail connectors part number

12085514

• Yellow vinyl electrical tape

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Wiring Repairs / SIR/SRS Wiring Repairs (continued)

Pigtail repair packs are available for SIR/SRS connectors

with eight or less terminals. Only the connector body is

available for connectors with more than eight terminals.

The terminated leads in the J-38125 SIR/SRS Terminal

Repair Kit can be used to replace damaged terminals when

replacing the connector body.

SIR/SRS Component Wire Pigtail Repair

Important: Do not make wire, connector, or terminal

repairs on components with wire pigtails.

A wire pigtail is a wire or wires attached directly to the de-

vice, not by a connector. If a wiring pigtail is damaged, you

must replace the entire component, with pigtail. The inflat-

Important: You must perform the following procedures in

the listed order. Repeat the procedure if any wire strands are

damaged. You must obtain a clean strip with all of the wire

strands intact

Splice Sleeve ColorCrimp Tool Nest

Color

Wire Gage mm2 /

(AWG)

Salmon (Yellow-Pink)12089189

Red (1) 0.035-0.8/(18-20)

Blue12089190

Blue (2) 1.0-2.0/(14-16)

Yellow

12089191 Yellow (3) 3.0-5.0/(10-12)

Green88988379

Red (1) 0.22-0.35/(22-24)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab(continued on next page)

p p , p g

able restraint steering wheel module coil is an example of

a pigtail component.

SIR/SRS Wire Repair

Important: Refer to Wiring Repairs in order to determine

the correct wire size for the circuit you are repairing. You

must obtain this information in order to ensure circuit

integrity.

If any wire except the pigtail is damaged, repair the wire

by splicing in a new section of wire of the same gage size

(0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splicesleeves and splice crimping tool from the J-38125 . Use the

following wiring repair procedures in order to ensure the

integrity of the DuraSeal splice sleeves.

strands intact.

1. Open the harness by removing any tape:

• Use a sewing seam ripper, available from sewing supplystores, in order to cut open the harness in order to avoid

wire insulation damage.

• Use the DuraSeal splice sleeves on all types of insulation

except tefzel and coaxial.

• Do not use the crimp and DuraSeal splice sleeve to form a

splice with more than 2 wires coming together.

4. Cut as little wire off the harness as possible. You may need

the extra length of wire in order to change the location of a

splice.

Adjust splice locations so that each splice is at least 40 mm

(1.5 in) away from the other splices, harness branches, or

connectors.

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Wiring Repairs / SIR/SRS Wiring Repairs (continued)

5. Strip the insulation:

• When adding a length of wire to the existing harness,

use the same size wire as the original wire.

• Perform one of the following items in order to nd the

correct wire size:

- Find the wire on the schematic and convert the metric

size to the equivalent AWG size.

- Use an AWG wire gage.

- If you are unsure of the wire size, begin with the larg-

est opening in the wire stripper and work down until

achieving a clean strip of the insulation.

• Strip approximately 7.5 mm (0.313 in) of insulation from

each wire to be spliced

14. Use the Splice Crimp Tool from the J-38125 to crimp

DuraSeal splice sleeve. In order to position the DuraSeal

splice sleeve in the proper color nest of the Splice Crimp

Tool The crimp tool has three nests 1 is for the salmon

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab(continued on next page)

each wire to be spliced.

• Do not nick or cut any of the strands. Inspect the

stripped wire for nicks or cut strands. • If the wire is damaged, repeat this procedure after re-

moving the damaged section.

13. Select the proper DuraSeal splice sleeve according to

the wire size. Refer to the above table at the beginning of

the repair procedure for the color coding of the DuraSeal

splice sleeves and the crimp tool nests.

Tool. The crimp tool has three nests, 1 is for the salmon

and green splice sleeve, 2 is for the blue splice sleeve,

and 3 is for the yellow splice sleeve.

15. Place the DuraSeal splice sleeve in the nest. Ensure that

the crimp falls midway between the end of the barrel and

the stop. The sleeve has a stop (3) in the middle of the

barrel (2) in order to prevent the wire (1) from going further.

Close the hand crimper handles slightly in order to firmly

hold the DuraSeal splice sleeve in the proper nest.

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

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Wiring Repairs / SIR/SRS Wiring Repairs (continued)

16. Insert the wire into the splice sleeve barrel until the wire

hits the barrel stop.

17. Tightly close the handles of the crimp tool until the

crimper handles open when released.

The crimper handles will not open until you apply the

proper amount of pressure to the DuraSeal splice sleeve.

Connector Position Assurance (CPA)

The connector position assurance (CPA) is a small plastic

insert that fits through the locking tabs of a connector. CPAs

are used in all SIR System connectors and also in some con-

nectors of other systems. The CPA ensures that the connector

halves cannot vibrate apart. You must have the CPA in place

in order to ensure good contact between the mating terminalsof a connection.

Terminal Position Assurance (TPA)

The terminal position assurance (TPA) insert resembles the

plastic combs used in the control module connectors. The

TPA keeps the terminal securely seated in the connector body

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

Repeat steps 4 and 5 for the opposite end of the splice.

18. Using the heat torch, apply heat to the crimped area of

the barrel.

19. Gradually move the heat barrel to the open end of

the tubing:• The tubing will shrink completely as the heat is moved

along the insulation.

• A small amount of sealant will come out of the end of

the tubing when sufficient shrinkage is achieved.

TPA keeps the terminal securely seated in the connector body.

Do not remove the TPA from the connector body unless you

remove a terminal for replacement

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

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Lighting/Separating Stop from Turn Signal Lamps

The 2009 Medium Duty C-Series trucks have single red tail-lamp assemblies that function as Stop/Turn/Hazard lamps.Many applications call for separating the brake lamps fromthe Turn/Hazard function or adding additional Amber Turn / Hazard lamps. The procedure for implementing Amber Turn/ Hazard Lamps is outlined below.

1. Remove the CHMSL relay (refer to Fuse Block - I/P-2).Carefully cut off the “87” terminal from the relay to

eliminate the brake function from the existing lightingsystem.

2. Re-install the modified CHMSL relay.

3. Additional Turn lamps can be wired to 318 (Left Turn) andthe 319 (Right Turn) circuits in the 12-Way Body Builder or

Important Notes:

(a) It is the responsibility of the upfitter to meet all FMVSS

lighting requirements. The upfitter must also ensure that

the combined current of any additional lighting does not

exceed the circuit fusing.

(b) Operation without the CHMSL relay installed will disablethe Power Take-Off (PTO) system.

(c) Operation without the CHMSL relay installed eliminates

the Brake Lamp function at the 7-way Family 2 Trailer

Connector.

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

(continued on next page)

( g ) y yBus Connector.

4. Stop Lamp (only) operation can be re-established bywiring into circuit 1320 (stop lamp) of the 12-Way BodyBuilder Connector.

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Lighting/Separating Stop from Turn Signal Lamps (continued)

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

E LECTRICAL M ANUAL – 2009 M EDIUM DUTY – C-S ERIES – CONVENTIONAL C AB P A G E

E-48

California Air Resource Board (CARB) Idle Shutdown Regulations

REGULATION

The California Air Resource Board (CARB) formulated new idle

shutdown requirements applicable to 2008 model year heavy

duty diesel engines operating in vehicles greater than 14,000

lbs. GVW. According to this regulation, all new 2008 and subse-

quent model year heavy duty diesel engines shall be equipped

with an engine shutdown system that automatically shuts downthe engine after 300 seconds of continuous idling operation

once the vehicle is stopped, the transmission is set to “Neu-

tral” or “Park”, and the parking brake is engaged. If the parking

brake is not engaged, then the engine shutdown system will

shut the engine down after 900 seconds of continuous idling

operation once the vehicle is stopped and the transmission is

set to “Neutral” or “Park”.

ENGINE SHUTDOWN SYSTEM OVERRIDE

The engine shutdown system may be overridden to allow the

engine to run continuously at idle, only under the following

conditions:

(1) If the engine is operating in the PTO mode. The PTO system

switch will have a switch to override the engine shutdown

system and will be reset to the “OFF” position every timethe vehicle’s engine is turned “OFF”. This has been accom-

plished by changing the current “ON/OFF” PTO switch to a

momentary PTO switch. Additionally, the PTO switch has

been designed so that if it fails it will always fail in the

“OFF” position.

(2) If the vehicle’s engine coolant temperature is below 60°F.

The engine shutdown system will be automatically activated

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Electrical Manual – 2009 Medium Duty – C Series – Conventional Cab

The engine shutdown system is tamper resistant and non-pro-

grammable and cannot modify the software/calibration to enable

or disable the engine shutdown system.

DRIVER WARNING

A warning signal (light or sound indicator inside the vehicle

cabin) will be used to alert the driver 30 seconds prior to engine

shutdown. The engine shutdown system is capable of allowing

the driver to reset the engine shutdown timer by momentarily

changing the position of the accelerator, brake, or clutch pedal

or by shifting the transmission out of “Park” or “Neutral”. Oncereset, the engine shutdown system will restart the shutdown

sequence described above and will continue to do so until the

engine shuts down or the vehicle is driven.

The engine shutdown system will be automatically activated

once the coolant temperature reaches 60°F or above. The

engine coolant temperature is measured with the engine’sexisting engine coolant temperature sensor

EXEMPT VEHICLES

Heavy Duty diesel engines to be used in buses as defined in

California Vehicle Code #233, 612 and 642, school buses as

defined in California Vehicle Code #545, and recreational vehicles

as defined in Health and Safety Code18010 are exempt from

these idle shutdown requirements. The idle shutdown system

will not be provided on exempt vehicles and Federal vehicles.

IMPLEMENTATION TIMING

The idle shutdown program was implemented in January, 2008.

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Engine Idle Control System Description

Idle Shutdown

This feature automatically shuts down the engine after it idles con-

tinuously for five minutes and if the following conditions are met:

• The parking brake is set.

• The vehicle is at a complete stop.

• The automatic transmission is in NEUTRAL (N) or PARK (P).If the parking brake is not engaged, the engine shuts down after

15 minutes of continuous idling operation. The driver can reset

the engine shutdown timer by momentarily changing the posi-

tion of the accelerator, brake, or clutch pedal or by shifting the

transmission out of PARK (P) or NEUTRAL (N). Once reset, the

i idl h td ill t t th h td d

• Service or maintenance is being performed on the engine. The

engine idle shutdown mode can be deactivated by establish-

ing communication with the vehicle through scan tool. A com-

munication link is established by selecting any data list. Once

the scan tool is disconnected from the vehicle, the engine idle

shutdown feature will resume normal operation.

The engine shutdown warning light and chime will stay ON forthe entire duration of the idle shutdown event to inform the driver

that the engine is in idle shutdown mode. After the engine shut-

down occurs, the engine is no longer running, and the ignition

is still in the ON/Run position, all accessories can be used. Turn

the ignition switch to START to restart the engine, or turn it to

LOCK/OFF to prevent the battery from draining.