Post on 11-Nov-2014
PD803064.FRM
5 AFUSE
555439
439
A555
NONE
150
NTACT)
68A150150115439
B
P
SERVICE BRAKE
PRESSURE
SWITCH
531
B543
A543
(PRESSURE APPLIES SERVICE BRAKES)P
558
531
(PRESSURE RELEASES PARKING BRAKES)
PARKING
BRAKE
PRESSURE
SWITCH
NC
NO
NC
NO
BRAKE(S) ON
SERVICE BRAKES ON
PARKINGBRAKES ON
SERVICE BRAKES OFF
DDEC II
COOLANT
LEVEL
CONTROL
MODULE
KEY
CRANK
CRUISE
LIGHT
RELAY
PARKINGBRAKES OFF
BRAKE(S) OFF
DDECII FUSE HARNESS
509
419
A5
55
438
419
354
438
419
354
LIGHT
BAR
D
ST
OP
CH
EC
KE
NG
INE
CR
UIS
EC
ON
TR
OL
E
7
SK20627
DJJX
MNH
09-04-90
35989-08RG
MS
REV FOR NEW LIGHT BARB-2
EDPH
DPH
06-24-91
12503JJS
MS
5 AMP FUSE WAS 15 AMPC-2
GNDP
NDP
12-21-92
12822JJS
MS
CORRECTED PIN CALLOUTS
ON FIREWALL CONNECTOR
C-5
FMNH
MNH
10-03-91
91079-05RG
MS
1) REV DIAGNOSTIC CONN
AJC
B-4
2) ADD J1922A DATAB-4
LINK CONN
03-25-93
12885
DDEC II Engine SK20627 H 01
A1A2A3B1B2B3C1C2C3D1D2D3E1E2E3F1F2F3G1G2G3H1H2H3J1J2J3K1
P
916419509439901900
P
P451556557542544
545P
524
541531
P
K2K3
555508
952
417
P528543
115
505902
241241150150240240
ABCDEF
ECM
CONNECTOR
ECM POWER
CONNECTOR
A543555
P541
P542544545
P
901916952953
A543555902541
P542544545
900901916952953
FIREWALL
CONNECTOR
ABCDEFGHJKLMNP
531
528508509 P
451
115417150
531
528508509505
419115417150
ABCDEFGHJKLMNP
900P
451
+12VGND
BATTERY
241
241
240
240
298
239
953
150
556557
SPEED SENSOR
556
557
531
A543
543
CLUTCH
SWITCH
CLUTCHPEDAL
A150
68
NORMALCOOLANTLEVEL
COOLANT
LEVEL
SWITCH
150
150
544
545
558
CRUISERESUMESWITCH
542
541
558
CRUISESET/RESUMESWITCH
508
953
558
CRUISEON/OFFSWITCH
OPTIONAL SHUTDOWN SYSTEM OVERRIDE SWITCH
451
(MOMENTARY CO
F E D C B4
39
DIAGNOSTICCONNECTOR
150
901
900
A
916
417
952
952417916
THROTTLE
POSITION
SENSOR
68531A543558
BB
68531A543558
BB
A150150115439439
B
A150150115439439
B
439P
2329
KEY/START HARNESS
J1922DATALINKCONN
953
524
P
OPTIONALSHUTDOWN TIMERPARKING BRAKEPRESSURE SWITCH
(PRESSURE RELEASES BRAKES)
528953
(MOMENTARY CONTACT)
DIAGNOSTIC
SWITCH
901900
JAKEBRAKECONNECTION
239JAKE BRAKE MODULE
OPTIONAL JAKE BRAKE
ATEC 211223
224 224
223
508225289
ABCDEF
ABCDEF
225
223508289
224
242
225
289
211
239
ATEC CONNECTION(OPTIONAL)
DASHGROUND
MAIN CAB HARNESSENGINE BRAKE SWITCHCONNECTORS
508
439439
EO
F K
ILL C
ON
NE
CT
ION
SCHEMATIC - DETROIT DIESEL DDECII
PETERBILT 379 FAMILY
CKT FUNCTION2329
242289298354
439451
505508509524528531541542543
557
12V POWER (STARTER CRANKING)12V POWER (KEY ON)
12V POWER (KEY ON, FUSED)JAKE BRAKE12V POWER (CONSTANT)CRUISE CONTROL "ON" LIGHT
CRUISE SET
150A150
A543544545555556
CRUISE "ON" SIGNALVEHICLE SPEED SIGNAL (+)
900
68115
211223224225239240241
JAKE BRAKE - FRONTJAKE BRAKE - REAR DASH GROUND
419417 901
902916952953
ECM POWERECM POWER
LOW COOLANT PROBE SIGNALLOW COOLANT SIGNALECM GROUNDLOW COOLANT PROBE GROUNDJAKE BRAKE ATEC SIGNALJAKE BRAKE
DIAGNOSTIC SIGNAL
DATA LINK (+)DATA LINK (-)THROTTLE POSITION SIGNAL
"CHECK ENGINE" LIGHT438 "STOP ENGINE" LIGHT
IGNITION
972
TACH
TACH
ENGINE BRAKE ENABLE SIGNALSTOP ENGINE SIGNALPARKING BRAKE-IDLE TIMERSHUTDOWN OVERRIDEBRAKE/CLUTCH "ON"
CRUISE NOT SETBRAKE/CLUTCH "OFF"BRAKE "OFF"CRUISE NOT RESUMECRUISE RESUME
VEHICLE SPEED SIGNAL (-)
CRANK POSITION SIGNALTHROTTLE POSITION SENSOR POWERTHROTTLE POSITION SENSOR GROUNDSWITCH GROUND
558 CRUISE/PRESSURE SWITCH GROUND
CKT FUNCTION
NOTES:
1) SCHEMATIC FOR DETROIT DIESEL DDECII ENGINE WITH OPTIONAL JAKE BRAKE, SHUTDOWN SYSTEM AND IDLE SHUTDOWN TIMER
2) RELAY SHOWN IN NON-ENERGIZED POSITION
3) PRESSURE SWITCHES SHOWN IN NON-PRESSURIZED POSITION
5) CLUTCH SWITCH SHOWN WITH CLUTCH ENGAGED
4) PARKING BRAKES ARE RELEASED BY PRESSURE IN THE SYSTEM
DDECII ENGINE HARNESS
DDECII CAB HARNESS
15AFUSE
15AFUSE
A
A242239ABS239224225
LO
HIMED
HION/OFF B
A242
239ABS239
224225
C
AB
S
ABS CONN (OPT)
ATEC 211
DDEC II
CAB
HARNESS
MAIN
CAB
HARNESS
EN
GIN
E
DATALINKCONN
901900
F1 F2
524 524
6868
419
A150 A150
439439
G
H
AMCD
DPH
08-30-89
89057-03
RG
MS
REPLACED CB’S W/15A FUSES
ROC
B-7
CNDP
NDP
04-04-90
36548-02
MS
REVISED JAKE INSTLA-5
RG
ROC
HNDP
NDP RG
MS
CORRECTED PIN CALLOUTSB-5RG
ROCB
NDP
NDP
03-02-90
36538-02
MS
REVISED JAKE INSTLA-5