1Sear :™ FUSE BLOCK POWER DISTRIBUTION...FUSE BLOCK POWER DISTRIBUTION Fig 1: Power Di ribution...

FUSE BLOCK

POWER DISTRIBUTION

Fig 1: Power Distribution Circuit, Diesel (1 of 4)

59806

BLK 12GA

D

GRY2

A B C

E

TEST

ACCY

LOCK

OFF RUN

BULB

START START

BULB

RUNOFF

LOCK

ACCY

TESTTEST

ACCY

LOCK

OFF RUN

BULB

STARTSTART

BULB

RUNOFF

LOCK

ACCY

TEST

C103AA

C100

A

A C256CA C256E C255

B C255B C256

C231

BLK

RED

PPL

PPL

RED

RED

BLK

BLK/RED

GENERATOR STARTER

MOTOR

SOLENOID

GLOW PLUG

CONTROLLER

IGNITION SWITCH

4WAL MODULE

CONVEN-IENCE

CENTER

FUSE

BLOCK

DOME

LAMP

RADIO CONVENIENCE

CENTER

BRAKE SWITCH

DAYTIME RUNNING

LAMPS RELAY

POWERTRAIN CONTROL

MODULE

(PCM)

AUDIO ALARM

MODULE CONVENIENCE

CENTER

REAR WHEEL

ANTILOCK BRAKE

MODULE

HEADLIGHT SWITCH

ASSEMBLY

HAZARD FLASHER

AUXILLARY COOLING

FAN RELAY

FUEL PUMP/OIL

PRESSURE

SWITCH

FUEL PUMP

RELAY

CIGARETTE

LIGHTER

FUEL

PUMP

RELAY LOW

BLOWER

RELAY MEDIUM

BLOWER

RELAY

REAR WINDOW

RELEASE

RELAY

HIGH BLOWER

RELAY

REAR WINDOW

RELEASE

SWITCH

HORN RELAY CONVENIENCE

CENTER

RR WPR, FRT WPR,

RDO FUSES AND

AND

PWR WDO

CIRCUIT

BREAKER

HTR-A/C, RR HVAC,

4WD & BRAKE

FUSES

PWR ACC

CIRCUIT BREAKER

TRANS

FUSE

ECM-IGN, TURN B/U

& GAUGES

FUSES

GLOW

PLUGS

W/ AUTOMATIC

TRANSMISSION

W/ AUTO

TRANS

SUBURBAN EXC. SUBURBAN & UTILITY & UTILITY

SUBURBAN & UTILITY ONLY

G206

RIGHT

BATTERY

LEFT

BATTERY

FUSIBLE

LINK

CLUTCH

PEDAL

SWITCH

STOP

FUSE

15A

DRL

FUSE

15A

T/G REL

FUSE

25A

CTSY

FUSE

20A

PARK

LPS

FUSE

20A

CRANK

FUSE

5A

(AT DATA

LINK

CONNECTOR)

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1994 Chevrolet Pickup 6.5L Eng K2500

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59807

O

R

G G

R

O

BA

T

H

WW

H

TT

H

W

C247C241 C276AC259

BRN

FUSE BLOCK

CONVENIENCE

CENTER CONVENIENCE

CENTER

LEFT

FRONT

POWER

WINDOW SWITCH

LEFT

REAR

POWER

WINDOW

SWITCH

RIGHT

FRONT

POWER

WINDOW SWITCH

RIGHT

REAR

POWER

WINDOW

SWITCH

RIGHT

POWER

DOOR LOCK

SWITCH

LEFT

POWER

DOOR LOCK

SWITCH

POWER

DOOR LOCK

RELAY

RADIO REAR

WIPER/

WASHER SWITCH

WIPER

MOTOR

MODULE

REAR

WINDOW

DEFOGGER

SWITCH

POWER

OUTSIDE

MIRROR

SWITCH

WIPER

WASHER

SWITCH

LEFT

POWER

SEAT

FUSIBLE LINK

IGNITION SWITCH

SUBURBAN &

UTILTY ONLY

(SUBURBAN &

CREW CAB

ONLY)

POWER

ACC

CIRCUIT

BREAKER

30A

PWR

WDO

CIRCUIT

BREAKER

30A

FRT

WPR

FUSE

25A

RR

WPR

FUSE

25A

RDO

FUSE

10A

IN-LINE

FUSE

3A




59808

D

N

R

B

N

R

B50

D

E

R

C

PNK/BLK(OR PNK)

PNK DK GRN

ORG

ORG ORG

BRN

BRN

FUSE BLOCK

CONVENIENCE

CENTER CONVENIENCE

CENTER

LOW

BLOWER

RELAY

A/C CLUTCH

RELAY

MED

BLOWER

RELAY

HIGH

BLOWER

RELAY

A/C

CONTROL

MODULE

HEATER

BLOWER

SWITCH

VEHICLE

SPEED

SENSOR BUFFER

MODULE

TRANSFER

CASE

SWITCH

ANTILOCK

BRAKE

MODULE

GLOW PLUG

CONTROL MODULE

MED

BLOWER

RELAY

AUXILLIARY

HEATER-A/C

FRONT CONTROL

HIGH

BLOWER

RELAY

MODE

DOOR

MOTOR

AUXILLIARY

HEATER-A/C

LOGIC MODULE

TEMP

DOOR

MOTOR

AUXILLIARY

HEATER-A/C

REAR CONTROL

LOW

BLOWER

RELAY

RIGHT GLOW PLUGS LEFT GLOW PLUGS

FUSE BLOCK

POWERTRAIN CONTROL

MODULE

HEAVY DUTY

ELECTRONIC

TRANSMISSION

4-SPEED AUTOMATIC

W/OVERDRIVE

INSTRUMENT CLUSTER

PRINTED

CIURCUIT

ELECTRONIC TRANSMISSION

4-SPEED AUTOMATIC

W/OVERDRIVE

IGNITION

SWITCH

PANEL DIMMER

SWITCH ASSEMBLY

(INTERIOR

LIGHTS

SYSTEM)

IGNITION

SWITCH

INTERIOR LIGHTS

SYSTEM

W/ AIR

CONDITIONING

BRAKE

FUSE

15A

RR HVAC

FUSE

25A

4WD

FUSE

25A

HTR-A/C

FUSE

25A

PNL LPS

FUSE

5A

TRANS

FUSE

10A

GLOW PLUG

FUSE

5A




59809

E

G

R

O

U

L

B

U

L

B

C290C278

PNK/BLK

FUSE BLOCK

EGR

VENT

SOLENOID

TURN

SIGNAL

FLASHER

EGR

WIDTH

MODULATED

SOLENOID

FUEL

INJECTION

PUMP

PULSE

WIDTH

MODULATED

BOOST

SOLENOID

POWERTRAIN

CONTROL

MODULE

TCC/

STOPLAMP

SWITCH

BACKUP

LAMP

SWITCH

CONVENIENCE

CENTER

AUDIO

ALARM

MODULE

CONVENIENCE

CENTER

FUEL

HEATER

REAR

DEFOGGER

SWITCH

WATER-IN-FUEL

SENSOR

CRUISE

CONTROL

ACTIVATOR

SWITCH

CRUISE

CONTROL

MODULE

DAYTIME

RUNNING

LAMPS

RELAY

AUXILIARY

COOLING

FAN

RELAY

DAYTIME

RUNNING

LAMPS

MODULE

(PICKUP ONLY)

GLOW PLUG

CONTROL

MODULE

INSTRUMENT

CLUSTER

PRINTED

CIRCUIT

IGNITION

SWITCH

(L49 & L56

ENGINES

ONLY) (L49 & L56

ENGINES

ONLY) (L56 & L65

ONLY)

ECM-IGN

FUSE

10A

TURN B/U

FUSE

15A

GAUGES

FUSE

20A

SOL

FUSE

5A

F/SOL

FUSE

20A



Fig 5: Power Distribution Circuit, Gasoline (1 of 4)

59784

D

GRY2

A B C

E

TEST

ACCY

LOCK

OFF RUN

BULB

START START

BULB

RUNOFF

LOCK

ACCY

TESTTEST

ACCY

LOCK

OFF RUN

BULB

STARTSTART

BULB

RUNOFF

LOCK

ACCY

TEST

C103AA

A C256CA C256E C255

B C255B C256

C231

PPL

PPL

RED

RED

BLK

BLK/RED

GENERATOR STARTER

MOTOR

SOLENOID

IGNITION SWITCH

4WAL MODULE

CONVEN-IENCE

CENTER

IGNITION

COIL

FUSE

BLOCK

CONVENIENCE

CENTER

RADIO DOME

LAMP

FUEL PUMP/OIL

PRESSURE

SWITCH

AUXILLARY COOLING

FAN RELAY

BRAKE SWITCH

HEADLIGHT SWITCH

ASSEMBLY

POWERTRAIN CONTROL

MODULE

(PCM)

REAR WHEEL

ANTILOCK BRAKE

MODULE

DAYTIME RUNNING

LAMPS RELAY

FUEL PUMP

RELAY

AUDIO ALARM

MODULE CONVENIENCE

CENTER

HAZARD FLASHER

CIGARETTE LIGHTER

POWERTRAIN CONTROL

MODULE

(PCM)

LOW

BLOWER

RELAY MEDIUM

BLOWER

RELAY

REAR

WINDOW

RELEASE

SWITCH

REAR

WINDOW

RELEASE

RELAY

HIGH

BLOWER

RELAY

HORN RELAY

CONVENIENCE

CENTER

HTR-A/C, RR HVAC,

4WD & BRAKE

FUSES

RR WPR, FRT WPR,

RDO FUSES AND

AND

PWR WDO

CIRCUIT

BREAKER

PWR ACC

CIRCUIT BREAKER

TRANS &

INJ

FUSES

ECM-IGN, TURN B/U

& GAUGES

FUSES

W/ AUTOMATIC

TRANSMISSION

W/ AUTO

TRANS

VIN H&K

MANUAL

TRANS

ONLY

SUBURBAN EXC. SUBURBAN & UTILITY & UTILITY

SUBURBAN & UTILITY ONLY

L03 & L05

ENGINES W/

MANUAL

TRANSMISSIONS

ONLY

G206

BATTERY

CLUTCH

PEDAL

SWITCH

STOP

FUSE

15A

PARK

LPS

FUSE

20A

CRANK

FUSE

5A

DRL

FUSE

15A

CTSY

FUSE

20A

T/G REL

FUSE

25A

(AT DATA

LINK

CONNECTOR)




59785

O

R

G G

R

O

BA

T

H

WW

H

TT

H

W

C247C241 C276AC259

BRN

FUSE BLOCK

CONVENIENCE

CENTER CONVENIENCE

CENTER

RIGHT

REAR

POWER

WINDOW

SWITCH

LEFT

REAR

POWER

WINDOW

SWITCH

LEFT

FRONT

POWER

WINDOW SWITCH

RIGHT

FRONT

POWER

WINDOW SWITCH

LEFT

POWER

DOOR LOCK

SWITCH

RIGHT

POWER

DOOR LOCK

SWITCH

POWER

DOOR LOCK

RELAY

WIPER

MOTOR

MODULE

WIPER

WASHER

SWITCH

LEFT

POWER

SEAT

POWER

OUTSIDE

MIRROR

SWITCH

REAR

WIPER/

WASHER SWITCH

REAR

WINDOW

DEFOGGER

SWITCH

RADIO

FUSIBLE LINK

IGNITION SWITCH

SUBURBAN &

UTILTY ONLY

(SUBURBAN &

CREW CAB

ONLY)

POWER

ACC

CIRCUIT

BREAKER

30A

PWR

WDO

CIRCUIT

BREAKER

30A

RR

WPR

FUSE

25A

FRT

WPR

FUSE

25A

RDO

FUSE

10A

IN-LINE

FUSE

3A




59788

D

N

R

B

N

R

B50

D

E

R

C

PNK DK GRN

PNK/BLK (OR PNK)

ORG

ORG ORG

BRN

BRN

FUSE BLOCK

CONVENIENCE

CENTER CONVENIENCE

CENTER

HIGH

BLOWER

RELAY

A/C CLUTCH

RELAY

MED

BLOWER

RELAY

LOW

BLOWER

RELAY

A/C

CONTROL

MODULE

HEATER

BLOWER

SWITCH

ANTILOCK

BRAKE

MODULE

HEATED

OXYGEN

SENSOR

TRANSFER

CASE

SWITCH

VEHICLE

SPEED

SENSOR BUFFER

MODULE

AUXILLIARY

BATTERY

RELAY

AUXILLIARY

HEATER-A/C

LOGIC

MODULE

AUXILLIARY

HEATER-A/C

REAR

CONTROL

MED

BLOWER

RELAY

MODE

DOOR

MOTOR

AUXILLIARY

HEATER-A/C

FRONT

CONTROL

LOW

BLOWER

RELAY

TEMP

DOOR

MOTOR

HIGH

BLOWER

RELAY

FUSE BLOCK

HEAVY DUTY

ELECTRONIC

TRANSMISSION

4-SPEED AUTOMATIC

W/OVERDRIVE

THROTTLE

BODY FUEL

INJECTOR A

THROTTLE

BODY FUEL

INJECTOR B

ELECTRONIC TRANSMISSION

4-SPEED AUTOMATIC

W/OVERDRIVE

IGNITION

SWITCH

PANEL DIMMER

SWITCH ASSEMBLY

(INTERIOR

LIGHTS

SYSTEM)

IGNITION

SWITCH

INTERIOR LIGHTS

SYSTEM

W/ AIR

CONDITIONING

VIN Z ONLY

EXCEPT

VIN Z

BRAKE

FUSE

15A

RR HVAC

FUSE

25A

4WD

FUSE

25A

HTR-A/C

FUSE

25A

INJ

FUSE

10A

PNL LPS

FUSE

5A

TRANS

FUSE

10A




59791

D

G

R

O

U

L

B

U

L

B

C290C278

PNK/BLK

PNK/BLK

PNK/BLK

FUSE BLOCK

TCC/

STOPLAMP

SWITCH

BACKUP

LAMP

SWITCH

TURN

SIGNAL

FLASHER

CONVENIENCE

CENTER

TROTTLE

ACTUATOR

SOLENOID

POWERTRAIN

CONTROL

MODULE

HEATED

OXYGEN

SENSOR

EVAPORATIVE

EMISSION

CANISTER

PURGE

SOLENOID

AIR SWITCHING

VALVE

SOLENOID

LINEAR

EGR

REGULATOR

VALVE

SOLENOID

ESC

MODULE

AIR DIVERT

SOLENOID

POWERTRAIN

CONTROL

MODULE

EXHAUST GAS

RECIRCULATION

SOLENOID

VALVE

CONVENIENCE

CENTER

CRUISE

CONTROL

ACTIVATOR

SWITCH

CRUISE

CONTROL

MODULE

AUDIO

ALARM

MODULE

CONVENIENCE

CENTER

OVERSPEED

ALARM

MODULE

REAR

DEFOGGER

SWITCH

AUXILLIARY

COOLING

FAN

RELAY

DAYTIME

RUNNING

LAMPS

RELAY

DAYTIME

RUNNING

LAMPS

MODULE

INSTRUMENT

CLUSTER

PRINTED

CIRCUIT

HOT FUEL

HANDLING

MODULE

IGNITION

SWITCH

VINS H & K

W/ AUTOMATIC

TRANSMISSIONS &

VINS N & Z

VINS H & K

W/ MANUAL

TRANSMISSIONS

(VIN N

ONLY)

(VIN N

ONLY) (VINS H & K)

(W/ NRQ) (W/ NRQ)

(VIN H &K

LIGHT DUTY

ONLY) (LO3 & LO5

ENGINES,

LIGHT DUTY &

YUKON W/ LO5

ENGINE)

VINS H & K

ONLY

VIN N

ONLY

(SUBURBAN

& UTILITY

ONLY)

(PICKUP ONLY)

TURN B/U

FUSE

15A

ECM-IGN

FUSE

10A

GAUGES

FUSE

20A



STARTING/CHARGING

6.5L

Fig 9: 6.5L (VIN F), Charging Circuit

60066

(ROTOR)

FIELD

BRIDGE

RECTIFIER SOLID-STATE

REGULATOR

BAT

20A

INDICATORS

TEST OR STARTHOT IN RUN, BULB

LFSP

HIGH VOLTAGE; GEN FAULT)

(CLOSES WITH LOW OR

TURN ON INPUT

SW BAT

INPUTVOLT SENSE

STATOR

A

F

C203

C203

L C109

RED/BLKBLK

BLK

RED/BLK

BRNBLK

BLK

BLK

BLK

RED/

BLKBLKBLK

PNK/

BLK

PNK/

BLK

FUSE

BLOCK GAUGES

FUSE FUSIBLE LINK

BATTERY JUNCTION

BLOCK

INSTRUMENT

CLUSTER

STARTER

SOLENOID CHARGE

INDICATOR

LEFT BATTERY

RIGHT BATTERY

(12 GA. RUST)

W/DIESEL

ENGINE

(RED) W/GASOLINE

ENGINE W/DIESEL

ENGINE

(NOT

USED) (NOT

USED)

G110 G119 G101

GENERATOR

(RIGHT REAR OF

ENGINE COMPARTMENT,

AT COWL)

(LOWER

RIGHT REAR

OF ENGINE,

ON STARTER

MOTOR)

(TOP LEFT FRONT OF

OF ENGINE)

(TOP LEFT

FRONT

OF

ENGINE)

(RIGHT

FRONT

OF

ENGINE)

(RIGHT

INNER

FENDER,

NEAR

BATTERY)



Fig 10: 6.5L (VIN F), Starting Circuit

M

60060

5A

30A15A

START

BULB

RUNOFF

LOCK

ACCY

TEST

SOLENOID CONTACTS B

M

S

WINDING

PULL-INWINDING

HOLD-IN

C255

C255C256

B

A

A

DB

BLK

BLK PPL

BLK

PPL

PPL

YEL

REDRED

RED RED

REDRED

RED

BLK

BLK

BLK

PPL

PPL

BLK BLK

PPL

IGNITION

SWITCH

FUSE

BLOCK PWR ACC

CIRCUIT

BREAKER

STOP-

HZ

FUSE FUSIBLE

LINK

BATTERY

JUNCTION

BLOCK

FUSIBLE

LINK

FUSE

BLOCK CRANK

FUSE

LEFT

BATTERY

RIGHT

BATTERY

W/AUTO TRANS W/MAN TRANS

(NORMALLY,OPEN

CLOSES WHEN

CLUTCH PEDAL IS

DEPRESSED)

(16 GA.

BLK)

(12 GA.

RUST)

(WITH DIESEL

ENGINE)

G119 G101 G110

CLUTCH START

SWITCH

STARTER

SOLENOID

STARTER

MOTOR

(BEHIND LEFT

SIDE OF

INSTRUMENT

PANEL)

(AT TOP OF

CLUTCH PEDAL)

(RIGHT REAR OF

ENGINE

COMPARTMENT, AT COWL)

(LOWER LEFT

SIDE OF

INSTRUMENT

PANEL)

(LOWER

RIGHT SIDE

OF ENGINE,

ON STARTER

MOTOR) (RIGHT FRONT OF

ENGINE)

(TOP LEFT

FRONT OF

ENGINE)

(RIGHT INNER FENDER,NEAR

BATTERY)

(LOWER RIGHT SIDE

OF ENGINE)



Fig 11: 6.5L (VIN P), Charging Circuit

60066

(ROTOR)

FIELD

BRIDGE


REGULATOR

BAT

20A

INDICATORS


LFSP


(CLOSES WITH LOW OR

TURN ON INPUT

SW BAT

INPUTVOLT SENSE

STATOR

A

F

C203

C203

L C109

RED/BLKBLK

BLK

RED/BLK

BRNBLK

BLK

BLK

BLK

RED/

BLKBLKBLK

PNK/

BLK

PNK/

BLK

FUSE

BLOCK GAUGES

FUSE FUSIBLE LINK

BATTERY JUNCTION

BLOCK

INSTRUMENT

CLUSTER

STARTER

SOLENOID CHARGE

INDICATOR

LEFT BATTERY

RIGHT BATTERY

(12 GA. RUST)

W/DIESEL

ENGINE

(RED) W/GASOLINE

ENGINE W/DIESEL

ENGINE

(NOT

USED) (NOT

USED)

G110 G119 G101

GENERATOR

(RIGHT REAR OF

ENGINE COMPARTMENT,

AT COWL)

(LOWER

RIGHT REAR

OF ENGINE,

ON STARTER

MOTOR)

(TOP LEFT FRONT OF

OF ENGINE)

(TOP LEFT

FRONT

OF

ENGINE)

(RIGHT

FRONT

OF

ENGINE)

(RIGHT

INNER

FENDER,

NEAR

BATTERY)



Fig 12: 6.5L (VIN P), Starting Circuit

M

60060

5A

30A15A

START

BULB

RUNOFF

LOCK

ACCY

TEST

SOLENOID CONTACTS B

M

S

WINDING

PULL-INWINDING

HOLD-IN

C255

C255C256

B

A

A

DB

BLK

BLK PPL

BLK

PPL

PPL

YEL

REDRED

RED RED

REDRED

RED

BLK

BLK

BLK

PPL

PPL

BLK BLK

PPL

IGNITION

SWITCH

FUSE

BLOCK PWR ACC

CIRCUIT

BREAKER

STOP-

HZ

FUSE FUSIBLE

LINK

BATTERY

JUNCTION

BLOCK

FUSIBLE

LINK

FUSE

BLOCK CRANK

FUSE

LEFT

BATTERY

RIGHT

BATTERY


(NORMALLY,OPEN

CLOSES WHEN

CLUTCH PEDAL IS

DEPRESSED)

(16 GA.

BLK)

(12 GA.

RUST)

(WITH DIESEL

ENGINE)

G119 G101 G110

CLUTCH START

SWITCH

STARTER

SOLENOID

STARTER

MOTOR

(BEHIND LEFT

SIDE OF

INSTRUMENT

PANEL)

(AT TOP OF

CLUTCH PEDAL)

(RIGHT REAR OF

ENGINE


(LOWER LEFT

SIDE OF

INSTRUMENT

PANEL)

(LOWER

RIGHT SIDE

OF ENGINE,

ON STARTER


ENGINE)

(TOP LEFT

FRONT OF

ENGINE)


BATTERY)

(LOWER RIGHT SIDE

OF ENGINE)



Fig 13: 6.5L (VIN S), Charging Circuit

60066

(ROTOR)

FIELD

BRIDGE


REGULATOR

BAT

20A

INDICATORS


LFSP


(CLOSES WITH LOW OR

TURN ON INPUT

SW BAT

INPUTVOLT SENSE

STATOR

A

F

C203

C203

L C109

RED/BLKBLK

BLK

RED/BLK

BRNBLK

BLK

BLK

BLK

RED/

BLKBLKBLK

PNK/

BLK

PNK/

BLK

FUSE

BLOCK GAUGES

FUSE FUSIBLE LINK

BATTERY JUNCTION

BLOCK

INSTRUMENT

CLUSTER

STARTER

SOLENOID CHARGE

INDICATOR

LEFT BATTERY

RIGHT BATTERY

(12 GA. RUST)

W/DIESEL

ENGINE

(RED) W/GASOLINE

ENGINE W/DIESEL

ENGINE

(NOT

USED) (NOT

USED)

G110 G119 G101

GENERATOR

(RIGHT REAR OF

ENGINE COMPARTMENT,

AT COWL)

(LOWER

RIGHT REAR

OF ENGINE,

ON STARTER

MOTOR)

(TOP LEFT FRONT OF

OF ENGINE)

(TOP LEFT

FRONT

OF

ENGINE)

(RIGHT

FRONT

OF

ENGINE)

(RIGHT

INNER

FENDER,

NEAR

BATTERY)



Fig 14: 6.5L (VIN S), Starting Circuit

M

60060

5A

30A15A

START

BULB

RUNOFF

LOCK

ACCY

TEST

SOLENOID CONTACTS B

M

S

WINDING

PULL-INWINDING

HOLD-IN

C255

C255C256

B

A

A

DB

BLK

BLK PPL

BLK

PPL

PPL

YEL

REDRED

RED RED

REDRED

RED

BLK

BLK

BLK

PPL

PPL

BLK BLK

PPL

IGNITION

SWITCH

FUSE

BLOCK PWR ACC

CIRCUIT

BREAKER

STOP-

HZ

FUSE FUSIBLE

LINK

BATTERY

JUNCTION

BLOCK

FUSIBLE

LINK

FUSE

BLOCK CRANK

FUSE

LEFT

BATTERY

RIGHT

BATTERY


(NORMALLY,OPEN

CLOSES WHEN

CLUTCH PEDAL IS

DEPRESSED)

(16 GA.

BLK)

(12 GA.

RUST)

(WITH DIESEL

ENGINE)

G119 G101 G110

CLUTCH START

SWITCH

STARTER

SOLENOID

STARTER

MOTOR

(BEHIND LEFT

SIDE OF

INSTRUMENT

PANEL)

(AT TOP OF

CLUTCH PEDAL)

(RIGHT REAR OF

ENGINE


(LOWER LEFT

SIDE OF

INSTRUMENT

PANEL)

(LOWER

RIGHT SIDE

OF ENGINE,

ON STARTER


ENGINE)

(TOP LEFT

FRONT OF

ENGINE)


BATTERY)

(LOWER RIGHT SIDE

OF ENGINE)



GROUND DISTRIBUTION

Fig 15: Ground Distribution Circuit (1 of 3)

AA

59260

UNCOATED

DK BLU/WHT

BLK PNK/BLK

ORG

BLK

DK BLU/WHT

BLK

(OR BLK)

RIGHT

SNOW-

PLOW

LAMP,

TURN

SIGNAL

RELAY

AUXILLIARY

BATTERY BATTERY

FRONT

RIGHT

PARK

AND

TURN

LAMP

AUXILIARY

COOLING

FAN

MOTOR

A/C

HIGH

PRESSURE

SWITCH

RIGHT

HIGH/

LOW

BEAM

HEADLAMP

RIGHT

PARK

AND

TURN

LAMP

LEFT

BATTERY RIGHT

HIGH

BEAM

HEADLAMP

RIGHT

LOW

BEAM

HEADLAMP

RIGHT

HORN RIGHT

FOG

LAMP

LEFT

SNOW-

PLOW

LAMP,

TURN

SIGNAL

RELAY

FRONT

LEFT

PARK

AND

TURN

LAMP

FRONT

LEFT

PARK

AND

TURN

LAMP

LEFT

HIGH/

LOW

BEAM

HEADLAMP

WASHER

PUMP

MOTOR

LEFT

LOW

BEAM

HEADLAMP

LEFT

HIGH

BEAM

HEADLAMP

LEFT

HORN LEFT

FOG

LAMP

OVERHEAD ROOF

CONSOLE LAMPS FRONT DOME &

READING LAMPS

REAR DOME &

READING LAMPS

REAR

DEFOGGER

GRID

HEADLIGHTS

SYSTEM

TO G206

WITH V22

APPEARANCE PACKAGE (RIGHT)

(GAS ENGINES)

(DIESEL ENGINES)

(4.3L, 5.0L, 5.7L ENGINES)

(7.4L ENGINE)

(DIESEL ENGINES)

(GASOLINE ENGINES) (DIESEL ENGINES)

W/ SNOWPLOW

PREPARATION

PACKAGE

W/ L19

GASOLINE

ENGINE

AND A/C WITH V22

APPEARANCE PACKAGE

ENGINE

GROUND

BODY

GROUND

W/ SNOWPLOW

PREPARATION

PACKAGE

W/O V22

APPEARANCE

PACKAGE

W/ V22

APPEARANCE

PACKAGE

W/ DAYTIME

RUNNING

LIGHTS

W/O DAYTIME

RUNNING

LIGHTS

CREW CAB, SUBURBAN &

UTILITY VEHICLES

W/ OVERHEAD CONSOLE

CREW CAB, SUBURBAN &

UTILITY VEHICLES

W/ AUXILLIARY LIGHTING

(PICKUP)

(EXTENDED & CREW CAB) (PICKUP)

G119

G119

G119

G106 G101 G110

G101

G# N/A

G106

G905 G305

G# N/A G909 G# N/A

(RIGHT FRONT OF ENGINE)

(FRONT OF RIGHT CYLINDER HEAD)

(RIGHT FRONT TOP OF ENGINE)

(RIGHT INNER FENDER, NEAR BATTERY) (ON SHEET METAL

ABOVE LEFT

HEADLAMP)

(LEFT TOP FRONT

OF ENGINE)

(RIGHT INNER

FENDER, NEAR

BATTERY)

(NO LOCATION AVAILABLE)

(ON SHEET

METAL, ABOVE

LEFT HEADLAMP)

(AT RIGHT "C" PILLAR) (RIGHT "B" PILLAR) (NEAR FRONT

DOME LAMPS)

(NEAR REAR

DOME LAMPS)

(NEAR FRONT

DOME LAMP)

DAYTIME

RUNNING

LAMPS

RELAY




A

59261

E

C

TURNFLASHER

450

150 8150 8150 8150 88150

GROUND BUS

150 150150150150 9

GRA

MODULEALARMAUDIO

GRA

150

9150

C290C

BLK/WHT

CENTER

HIGH

MOUNT

STOPLAMP

(CHMSL)

LOW

COOLANT

WARNING

LAMP

MODULE

SAFETY

BELT

RETRACTOR

SWITCH

REAR

WASHER

PUMP

MOTOR

LEFT

DOOR

JAMB

SWITCH

RIGHT

DOOR

JAMB

SWITCH

DAYTIME

RUNNING

LAMPS

RELAY

DAYTIME

RUNNING

LAMPS

MODULE

PANEL

DIMMER

SWITCH

CIGARETTE

LIGHTER

ASSEMBLY

BLOWER

MOTOR A/C

CONTROLLER

INSTRUMENT

CLUSTER RADIO

I/P

COMP-

ARTMENT

BOX

LAMP

FOUR-

WHEEL

DRIVE

INDICATOR

POWER

LOCKS

POWER

WINDOWS

REAR

WIPER/

WASHER

SWITCH

REAR

AUXILLIARY

HEATER

CONTROL

REAR

DEFOGGER

SWITCH

ROOF

MARKER

LAMPS

ASH

TRAY

LAMPS

AUXILIARY

BATTERY

RELAY

POWER

SEAT

CONVENIENCE

CENTER

CENTER

HIGH

MOUNT

STOPLAMP

RELAY

WIPER

MOTOR AND

MODULE

GLOW

PLUG

CONTROL

MODULE

A/C

COMP-

RESSOR

CLUTCH

WATER-

IN-

FUEL

SENSOR

A/C HIGH

PRESSURE

CUTOUT

SWITCH # 2

HEATED

OXYGEN

SENSOR

CRUISE

CONTROL

MODULE

COOLANT

LEVEL

SENSOR

4WAL

PUMP

MOTOR

RWAL

MODULE

4WAL

MODULE

FUEL

HEATER DIODE

EGR

ELECTRONIC

VACUUM

REGULATOR

SOLENOID

VALVE

FUEL

PUMP

AND

SENDER

VEHICLE

SPEED

SENSOR

BUFFER

PARK/

NEUTRAL

POSITION

SWITCH

CONVENIENCE

CENTER FUEL

PUMP

RELAY

POWERTRAIN

CONTROL

MODULE (PCM)

DATA

LINK

CONNECTOR

FROM

LEFT HIGH

(OR HIGH/LOW)

BEAM

HEADLAMP

(ASSEMBLY)

ALL

EXCEPT

DRL

DIESEL

ENGINE

ONLY

PICKUP

ONLY

W/ DIESEL ENGINES ONLY SUBURBAN &

UTILITY ONLY

(FRONT)

W/ LB4,

L03 & L05

ENGINES PICKUP

ONLY

LB4, L03, L05, L19 GASOLINE ENGINES W/ AUTOMATIC TRANSMISSION

LB4, L19 GASOLINE ENGINES W/ MANUAL TRANSMISSION

(L05 ONLY)

W/ HD

AUTOMATIC

TRANSMISSION

SUBURBAN &

UTILITY

ONLY

(LB4, L19 ENGINES) (L03, L05 ENGINES)

G206

G117

G110 G125

G110

(AT DATA

LINK

CONNECTOR)

(REAR OF

RIGHT CYLINDER HEAD)

(LEFT TOP FRONT

OF ENGINE) TOP FRONT CENTER

OF ENGINE) (LEFT TOP

FRONT OF

ENGINE)




59262

450450

BLK/

WHTWHT

BLK/

EVRV

ELECTRONIC

VACUUM

REGULATOR

VALVE

SOLENOID

VEHICLE

SPEED

SENSOR

BUFFER

VEHICLE

SPEED

SENSOR

BUFFER

PARK/

NEUTRAL

POSITION

SWITCH

HOT

FUEL

HANDLING

MODULE

CONVENIENCE

CENTER

CONVENIENCE

CENTER KNOCK

SENSOR

MODULE

POWERTRAIN

CONTROL

MODULE (PCM)

FUEL

PUMP

RELAY

POWERTRAIN

CONTROL

MODULE (PCM)

FUEL

PUMP

RELAY

DATA

LINK

CONNECTOR

DATA

LINK

CONNECTOR

FUEL

PUMP

FUEL

PUMP

LEFT REAR FENDER ENDGATE RIGHT REAR FENDER

LEFT

FRONT

CLEARANCE

LAMP

RIGHT

REAR

CLEARANCE

LAMP

RIGHT

FRONT

CLEARANCE

LAMP

LEFT

REAR

CLEARANCE

LAMP

ENDGATE CLEARANCE LAMPS

RIGHT REAR

TAIL,

STOP,

TURN AND

BACKUP

LAMPS

LEFT REAR

TAIL,

STOP,

TURN AND

BACKUP

LAMPS

LEFT

LICENSE

LAMP

RIGHT

LICENSE

LAMP

RIGHT TAIL/

STOP,

TURN AND

BACKUP

LAMP

LEFT TAIL/

STOP,

TURN AND

BACKUP

LAMP

LEFT

LICENSE

LAMP

RIGHT

LICENSE

LAMP

AUXILLIARY

AIR CONDI-

TIONING

(OR HEATER

AND AIR

CONDITIONING)

CONTROL

AUXILLIARY

AIR CONDI-

TIONING

(OR HEATER

AND AIR

CONDITIONING)

CONTROL

AUXILLIARY

HEATER AND

AIR

CONDITIONING

LOGIC

MODULE

RIGHT

CARGO

DOOR

DEFOGGER

GRID

REAR

ENDGATE

WINDOW

DEFOGGER

GRID

LEFT

CARGO

DOOR

DEFOGGER

GRID

RIGHT REAR TAIL, STOP,

LICENSE,

TURN AND

BACKUP

LAMPS

LEFT REAR TAIL, STOP,

LICENSE,

TURN AND

BACKUP

LAMPS

TEMPER-

ATURE

DOOR

MOTOR

TEMPER-

ATURE

MODE DOOR

RELAY

REAR

WIPER

MOTOR

MODULE

LIFTGATE

WINDOW

RELEASE

SOLENOID

CENTER

HIGH

MOUNT

STOPLAMP

BLOWER

MOTOR

MODE

DOOR

MOTOR

RIGHT

DOOR

CONTACT

SWITCH

LEFT

DOOR

CONTACT

SWITCH

REAR DOOR

JAMB SWITCH

L49, L56 & L65 DIESEL ENGINES W/ MANUAL TRANSMISSION L03, L05 GASOLINE ENGINES W/ MANUAL TRANSMISSION

(VIN K)

(W/ MANUAL

TRANSMISSION)

SUBURBAN & UTILITY

W/ AUTOMATIC

TRANSMISSIONS

(L05 ENGINE

W/HD AUTOMATIC

TRANSMISSION)

PICKUP WITH DUAL REAR WHEELS

PICKUP (W/O DUAL REAR WHEELS), SUBURBAN AND UTILITY

TRAILER

HEAVY DUTY TRAILER

WIRING U89

(W/ PLATFORM HITCH)

(W/O PLATFORM HITCH) (W/ PLATFORM HITCH) (W/O PLATFORM HITCH)

SUBURBAN & UTILITY

CHASSIS CAB WITH ENDGATE

(FRONT) (REAR) (REAR)

W/ AUXILLIARY

HEATER & AIR

CONDITIONING

W/ REAR

AUXILLIARY

HEATER ONLY

SUBURBAN &

UTILITY NON-BASE

VEHICLE (W/O PLATFORM

HITCH)

(W/ PLATFORM

HITCH)

G117

G125

G110

G409

G409 G409 G409

G409 G409

G409 G409

G998

(TOP RIGHT REAR

OF ENGINE) (TOP FRONT

CENTER OF ENGINE) (LEFT TOP

FRONT OF ENGINE)

(BOTTOM

CENTER OF ENDGATE)

(AT REAR OF

LEFT FRAME RAIL)

(AT LEFT SIDE OF HITCH)

(AT LEFT REAR OF FRAME RAIL) (AT LEFT SIDE OF HITCH)

(AT LEFT REAR

OF FRAME RAIL)

(AT RIGHT "D" PILLAR) (AT LEFT

REAR OF FRAME RAIL)

(AT LEFT

SIDE OF HITCH)

RIGHT

GAS

STRUT

CYLINDER



DEFOGGERS

Fig 18: Defogger Circuit

59109

OFF

ON

ON

INDICATOR

LAMPS

PANEL

15083960

HOT WITH HEADLIGHT SWITCH

IN PARK OR HEADTEST OR START

HOT IN RUN, BULB

5A

HOT AT ALL TIMES

30A 20A

B

BA

EAC

D

NCA

NCA

BLK

BLK

BLK

BLK

PPL/WHT

ORG PNK/BLK GRY BLK

GRYPNK/BLK

GRYPNK/BLK

BLK

ORG/

FUSE

BLOCK

FUSE

BLOCK

FUSE

BLOCK PNL LPS

FUSE

GAUGES

FUSE

ACC/BAT

CIRCUIT BREAKER

(REG CAB)

(EXT AND CREW CAB)

CONVENIENCE

CENTER

REAR

DEFOGGER

SWITCH

REAR

DEFOGGER

GRID

G206 G305

G905

(UNDER LEFT

SIDE OF I/P)

(AT DLC

CONNECTOR) (AT RIGHT B-PILLAR)

(AT RIGHT C-PILLAR)



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