JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual

DRIVER SEAT BELT SWITCH-2WAY
CAV CIRCUIT FUNCTION
1 R57 20DG DRIVER SEAT BELT SWITCH SENSE
2 R59 20LB DRIVER SEAT BELT SWITCH GROUND
DRIVER SIDE IMPACT SENSOR - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1- -
2- -
3 R133 20LB/DG DRIVER SIDE IMPACT SENSOR GROUND
4 R131 20LG/YL DRIVER SIDE IMPACT SENSOR SIGNAL
EGR SOLENOID (DIESEL) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 F15 18RD/DG FUSED AUTO SHUT DOWN RELAY OUTPUT
2 K35 20GY/YL EGR SOLENOID CONTROL
ELECTRIC BRAKE (EXCEPT BUILT-UP-EXPORT) - BLUE 4 WAY
CAV CIRCUIT FUNCTION
1 Z151 14BK GROUND
2 L50 18WT/TN PRIMARY BRAKE SWITCH SIGNAL
3 B40 12LB TRAILER TOW BRAKE B(+)
4 F9 14RD/BK FUSED B(+)
ELECTRONIC SPEED CONTROL SERVO - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1 V36 20TN/RD (RHD/GAS) SPEED CONTROL VACUUM SOLENOID CONTROL
1 V36 18TN/RD (LHD GAS) SPEED CONTROL VACUUM SOLENOID CONTROL
2 V35 20LG/RD (RHD/GAS) SPEED CONTROL VENT SOLENOID CONTROL
2 V35 18LG/RD (LHD GAS) SPEED CONTROL VENT SOLENOID CONTROL
3 V30 20DB/RD SPEED CONTROL BRAKE SWITCH OUTPUT
4 Z307 20BK GROUND
8W - 80 - 74 8W-80 CONNECTOR PIN-OUTWJ

ENGINE CONTROL MODULE C1 (DIESEL) - BLACK 81 WAY
CAV CIRCUIT FUNCTION
1 Z108 14BK/DG GROUND
2 Z108 14BK/DG GROUND
3 K20 14DB GENERATOR FIELD CONTROL
4 F142 14RD/DG FUSED AUTO SHUT DOWN RELAY OUTPUT
5 F142 14RD/DG FUSED AUTO SHUT DOWN RELAY OUTPUT
6 D52 18DG/WT CAN C BUS(+)
7 D25 20VT/YL PCI BUS
8 K944 20BR/DG CAMSHAFT POSITION SENSOR GROUND
9 K44 20YL/GY CAMSHAFT POSITION SENSOR SIGNAL
10 - -
11 Y53 20BK/YL BOOST PRESSURE SENSOR SIGNAL
12 K155 20YL/WT MASS AIR FLOW SENSOR SIGNAL
13 Y40 20DG/VT FUEL PRESSURE SENSOR SIGNAL
14 K22 20RD/DB ACCELERATOR PEDAL POSITION SENSOR 2 SIGNAL
15 K81 20DB/DG ACCELERATOR PEDAL POSITION SENSOR 1 SIGNAL
16 Y100 20BR/GY FUEL PRESSURE SENSOR GROUND
17 - -
18 - -
19 F300 20RD/BK BATTERY SENSE (+)
20 Z11 20BK/WT BATTERY SENSE (-)
21 K4 18BK/LB SENSOR GROUND
22 F991 20RD/DB FUSED IGNITION SWITCH OUTPUT (RUN-START)
23 K6 18VT/WT SENSOR REFERENCE VOLTAGE B
24 K3 20BK CRANKSHAFT POSITION SENSOR SIGNAL 1
25 D51 18WT CAN C BUS(-)
26 - -
27 - -
28 - -
29 K77 20BR/WT TRANSFER CASE POSITION SENSOR INPUT
30 G60 20BR/DB ENGINE OIL PRESSURE SENSOR SIGNAL
31 - -
32 K25 20VT/DG BATTERY TEMPERATURE SENSOR SIGNAL
33 - -
34 K255 20WT/DG ACCELERATOR PEDAL POSITION SENSOR 1 GROUND
35 Y43 20WT/VT ACCELERATOR PEDAL POSITION SENSOR 1 5-VOLT
SUPPLY
36 C18 20DB A/C PRESSURE SENSOR SIGNAL
37 - -
38 V37 20RD/DG SPEED CONTROL SWITCH SIGNAL
39 K226 20DB/WT FUEL LEVEL SENSOR SIGNAL
40 K2 20DG/RD ENGINE COOLANT TEMPERATURE SENSOR SIGNAL
41 K21 20DG/WT INTAKE AIR TEMPERATURE SENSOR SIGNAL
42 Y101 20 CRANKSHAFT POSITION SENSOR SHIELD
43 K924 20YL CRANKSHAFT POSITION SENSOR SIGNAL 2
44 - -
45 - -
46 - -
47 L50 20WT/DB PRIMARY BRAKE SWITCH SIGNAL
48 K29 20WT/PK SECONDARY BRAKE SWITCH SIGNAL
49 - -
50 F855 18BR/YL SENSOR REFERENCE VOLTAGE A
51 - -
52 - -
53 - -
54 Z189 20BR MASS AIR FLOW SENSOR GROUND
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 75

ENGINE CONTROL MODULE C1 (DIESEL) - BLACK 81 WAY
CAV CIRCUIT FUNCTION
55 B22 20DG/YL VEHICLE SPEED SENSOR SIGNAL
56 K225 18BK ACCELERATOR PEDAL POSITION SENSOR 2 GROUND
57 - -
58 K4 20BK/LB WATER IN FUEL SENSOR GROUND
59 K900 18GY INTAKE PORT SWIRL ACTUATOR SIGNAL
60 K7 20RD/WT FUEL PRESSURE SENSOR 5 VOLT SUPPLY
61 K51 20DB/YL AUTO SHUT DOWN RELAY CONTROL
62 - -
63 - -
64 - -
65 - -
66 - -
67 K173 20GY HYDRAULIC RADIATOR FAN SOLENOID CONTROL
68 - -
69 C13 20DB/RD A/C COMPRESSOR CLUTCH RELAY CONTROL
70 - -
71 - -
72 K236 20GY/PK GLOW PLUG RELAY NO. 2 CONTROL
73 - -
74 T752 20DG/RD ENGINE STARTER MOTOR RELAY CONTROL
75 K132 20BR/BK VISCOUS/CABIN HEATER RELAY CONTROL
76 Y42 20BR/BK WASTEGATE SOLENOID CONTROL
77 K152 20WT GLOW PLUG RELAY NO. 1 CONTROL
78 - -
79 - -
80 K46 20DB/BK FUEL PRESSURE SOLENOID CONTROL
81 K46 20DB/BK FUEL PRESSURE SOLENOID CONTROL
ENGINE CONTROL MODULE C2 (DIESEL) - BLACK 40 WAY
CAV CIRCUIT FUNCTION
82 D21 20PK SCI TRANSMIT
83 - -
84 - -
85 - -
86 - -
87 - -
88 - -
89 K35 20GY/YL EGR SOLENOID CONTROL
90 - -
91 - -
92 - -
93 - -
94 G123 20DG/WT WATER IN FUEL SENSOR SIGNAL
95 - -
96 - -
97 - -
98 - -
99 - -
100 - -
101 - -
102 - -
103 - -
104 - -
8W - 80 - 76 8W-80 CONNECTOR PIN-OUTWJ

ENGINE CONTROL MODULE C2 (DIESEL) - BLACK 40 WAY
CAV CIRCUIT FUNCTION
105 - -
106 - -
107 - -
108 - -
109 - -
110 - -
111 - -
112 T41 20BK/WT PARK/NEUTRAL POSITION SWITCH SENSE (T41)
113 - -
114 - -
115 K14 14BK/YL FUEL INJECTOR NO. 4 CONTROL
116 K63 14BK COMMON INJECTOR DRIVER
117 - -
118 K11 14BK/DB FUEL INJECTOR NO. 1 CONTROL
119 K38 14BK/DG FUEL INJECTOR NO. 5 CONTROL
120 K12 14BK/VT FUEL INJECTOR NO. 2 CONTROL
121 K13 14BK/RD FUEL INJECTOR NO. 3 CONTROL
ENGINE COOLANT TEMPERATURE SENSOR (DIESEL) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K4 20BK/LB SENSOR GROUND
2 K2 20DG/RD ENGINE COOLANT TEMPERATURE SENSOR SIGNAL
ENGINE COOLANT TEMPERATURE SENSOR (GAS) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K4 18BK/LB SENSOR GROUND
2 K2 18TN/BK ENGINE COOLANT TEMPERATURE SENSOR SIGNAL
ENGINE OIL PRESSURE SENSOR (DIESEL) - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 K6 18VT/WT SENSOR REFERENCE VOLTAGE B
2 G60 20BR/DB ENGINE OIL PRESSURE SENSOR SIGNAL
3 K4 18BK/LB SENSOR GROUND
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 77

ENGINE OIL PRESSURE SENSOR (GAS) - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 K6 18VT/BK 5 VOLT SUPPLY
2 G60 18GY/YL ENGINE OIL PRESSURE SENSOR SIGNAL
3 K4 18BK/LB SENSOR GROUND
EVAP/PURGE SOLENOID (GAS) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 F12 20DB/WT FUSED IGNITION SWITCH OUTPUT (RUN-START)
2 K52 18PK/BK (RHD) DUTY CYCLE EVAP/PURGE SOLENOID CONTROL
2 K52 20PK/BK (LHD) DUTY CYCLE EVAP/PURGE SOLENOID CONTROL
FRONT POWER OUTLET - RED 3 WAY
CAV CIRCUIT FUNCTION
1 F85 16VT (RHD) FUSED B(+)
1 F85 16VT/WT (LHD) FUSED B(+)
2- -
3 Z300 16BK GROUND
FRONT WASHER PUMP - WHITE 2 WAY
CAV CIRCUIT FUNCTION
1 V10 20BR WASHER PUMP SWITCH SENSE
2 Z141 20BK GROUND
FRONT WIPER MOTOR - BLACK 6 WAY
CAV CIRCUIT FUNCTION
1 V6 16DB FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
2 V55 16TN/RD WIPER PARK SWITCH SENSE
3- -
4 Z141 16BK GROUND
5 V3 16BR/WT WIPER HIGH/LOW RELAY LOW SPEED OUTPUT
6 V4 16RD/YL WIPER HIGH/LOW RELAY HIGH SPEED OUTPUT
8W - 80 - 78 8W-80 CONNECTOR PIN-OUTWJ

FUEL INJECTOR NO. 1 (DIESEL) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K11 14BK/DB FUEL INJECTOR NO. 1 CONTROL
2 K63 14BK COMMON INJECTOR DRIVER
FUEL INJECTOR NO. 1 (GAS) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K11 18WT/DB FUEL INJECTOR NO. 1 DRIVER
2 F42 18DG/LG FUSED AUTO SHUT DOWN RELAY OUTPUT
FUEL INJECTOR NO. 2 (DIESEL) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K12 14BK/VT FUEL INJECTOR NO. 2 CONTROL
2 K63 14BK COMMON INJECTOR DRIVER
FUEL INJECTOR NO. 2 (GAS) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K12 18TN FUEL INJECTOR NO. 2 DRIVER
2 F42 18DG/LG FUSED AUTO SHUT DOWN RELAY OUTPUT
FUEL INJECTOR NO. 3 (DIESEL) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K13 14BK/RD FUEL INJECTOR NO. 3 CONTROL
2 K63 14BK COMMON INJECTOR DRIVER
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 79

FUEL INJECTOR NO. 3 (GAS) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K13 18YL/WT FUEL INJECTOR NO. 3 DRIVER
2 F42 18DG/LG FUSED AUTO SHUT DOWN RELAY OUTPUT
FUEL INJECTOR NO. 4 (DIESEL) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K14 14BK/YL FUEL INJECTOR NO. 4 CONTROL
2 K63 14BK COMMON INJECTOR DRIVER
FUEL INJECTOR NO. 4 (GAS) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K14 18LB/BR FUEL INJECTOR NO. 4 DRIVER
2 F42 18DG/LG FUSED AUTO SHUT DOWN RELAY OUTPUT
FUEL INJECTOR NO. 5 (DIESEL) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K38 14BK/DG FUEL INJECTOR NO. 5 CONTROL
2 K63 14BK COMMON INJECTOR DRIVER
8W - 80 - 80 8W-80 CONNECTOR PIN-OUTWJ

FUEL INJECTOR NO. 5 (GAS) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K38 18GY FUEL INJECTOR NO. 5 DRIVER
2 F42 18DG/LG FUSED AUTO SHUT DOWN RELAY OUTPUT
FUEL INJECTOR NO. 6 (GAS) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K58 18BR/DB FUEL INJECTOR NO. 6 DRIVER
2 F42 18DG/LG FUSED AUTO SHUT DOWN RELAY OUTPUT
FUEL INJECTOR NO. 7 (4.7L) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K26 18VT FUEL INJECTOR NO. 7 DRIVER
2 F42 18DG/LG FUSED AUTO SHUT DOWN RELAY OUTPUT
FUEL INJECTOR NO. 8 (4.7L) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K28 18GY/LB FUEL INJECTOR NO. 8 DRIVER
2 F42 18DG/LG FUSED AUTO SHUT DOWN RELAY OUTPUT
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 81

FUEL PRESSURE SENSOR (DIESEL) - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 Y100 20BR/GY FUEL PRESSURE SENSOR GROUND
2 Y40 20DG/VT FUEL PRESSURE SENSOR SIGNAL
3 K7 20RD/WT FUEL PRESSURE SENSOR 5 VOLT SUPPLY
FUEL PRESSURE SOLENOID (DIESEL) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K46 20DB/BK FUEL PRESSURE SOLENOID CONTROL
2 F142 16RD/DG FUSED AUTO SHUT DOWN RELAY OUTPUT
FUEL PUMP MODULE (GAS) - BLACK 6 WAY
CAV CIRCUIT FUNCTION
1 A141 16DG/BK FUEL PUMP RELAY OUTPUT
2- -
3 K226 20LB/YL FUEL LEVEL SENSOR SIGNAL
4 K4 20BK/LB SENSOR GROUND
5- -
6 Z150 16BK GROUND
FUEL TANK MODULE (DIESEL) - BLACK 6 WAY
CAV CIRCUIT FUNCTION
1- -
2- -
3 K226 20LB/YL FUEL LEVEL SENSOR SIGNAL
4 K4 20BK/LB SENSOR GROUND
5- -
6- -
GENERATOR (DIESEL) - LT. GRAY 2 WAY
CAV CIRCUIT FUNCTION
1 F15 14DB/WT FUSED AUTO SHUT DOWN RELAY OUTPUT
2 K20 14DB GENERATOR FIELD CONTROL
8W - 80 - 82 8W-80 CONNECTOR PIN-OUTWJ

GENERATOR (GAS) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K125 18WT/DB GENERATOR SOURCE
2 K20 18DG GENERATOR FIELD DRIVER
GLOVE BOX LAMP - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 F70 20PK/BK FUSED B(+)
2 M20 20BR/OR COURTESY LAMP LOAD SHED
HEADLAMP LEVELING SWITCH (BUILT-UP-EXPORT) - WHITE 3 WAY
CAV CIRCUIT FUNCTION
1 Z234 20BK GROUND
2 L7 18BK/YL PARK LAMP RELAY OUTPUT
3 L13 20BR/YL HEADLAMP ADJUST SIGNAL
HOOD AJAR SWITCH (BUILT-UP-EXPORT) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 G70 20BR/TN HOOD AJAR SWITCH SENSE
2 Z141 20BK (DIESEL) GROUND
2 Z161 20BK (GAS) GROUND
HORN NO. 1 - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 Z307 18BK GROUND
2 X2 18DG/RD HORN RELAY OUTPUT
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 83