Bus JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual

DIAGNOSTIC JUNCTION PORT - BLACK 16 WAY
CAV CIRCUIT FUNCTION
1 D25 20YL/VT/BR PCI BUS (PCM/ECM TCM PDM CD SKIM)
2 D25 20YL/VT/DG (AZC) PCI BUS (AZC)
3 D25 20YL/VT/DB PCI BUS (RADIO)
4 D25 20YL/VT/OR PCI BUS (ACM)
5 D25 20YL/VT/RD PCI BUS (MIC)
6 D25 20YL/VT/WT PCI BUS (BCM)
7 D25 20YL/VT PCI BUS (DLC)
8 D25 20YL/VT/GY PCI BUS (DDM ABS MEM EVIC APM ITM RAIN
SENSOR)
9- -
10 - -
11 D25 20YL/VT (DIESEL) PCI BUS (SHIFTER ASSEMBLY)
12 - -
13 - -
14 - -
15 - -
16 - -
DRIVER AIRBAG SQUIB 1 - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 R43 20BK DRIVER SQUIB 1 LINE 1
2 R45 20BK DRIVER SQUIB 1 LINE 2
DRIVER AIRBAG SQUIB 2 - GREEN 2 WAY
CAV CIRCUIT FUNCTION
1 R63 20TN/LB DRIVER SQUIB 2 LINE 2
2 R61 20OR/LB DRIVER SQUIB 2 LINE 1
8W - 80 - 66 8W-80 CONNECTOR PIN-OUTWJ

DRIVER DOOR LOCK MOTOR/AJAR SWITCH - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1 G75 18TN/RD DRIVER DOOR AJAR SWITCH SENSE
2 Z243 12BK (RHD) GROUND
2 Z28 12BK (LHD) GROUND
3 P34 18PK/BK DRIVER DOOR UNLOCK DRIVER
4 P35 18OR/BK DRIVER DOOR LOCK DRIVER
DRIVER DOOR MODULE C1 - WHITE 15 WAY
CAV CIRCUIT FUNCTION
1 A146 12OR/WT FUSED B(+)
2 Q23 16RD/WT DRIVER REAR WINDOW DRIVER (DOWN)
3 Q13 16DB DRIVER REAR WINDOW DRIVER (UP)
4 Z28 12BK (LHD) GROUND
4 Z234 12BK (RHD) GROUND
5 P35 18OR/BK DRIVER DOOR LOCK DRIVER
6- -
7 P34 18PK/BK DRIVER DOOR UNLOCK DRIVER
8 D30 20VT/YL (JAPAN) DIAGNOSTIC OUT
9 D25 20YL/VT PCI BUS
10 G73 20LG/OR DRIVER CYLINDER LOCK SWITCH SENSE
11 G75 18TN/RD DRIVER DOOR AJAR SWITCH SENSE
12 E21 20OR/RD DRIVER REAR DOOR SWITCH ILLUMINATION
13 Q11 16LB DRIVER WINDOW DRIVER (UP)
14 - -
15 Q21 16WT DRIVER WINDOW DRIVER (DOWN)
DRIVER DOOR MODULE C2 - BLACK 12 WAY
CAV CIRCUIT FUNCTION
1 P95 20OR MIRROR HORIZONTAL DRIVER
2 C118 20BK/WT MIRROR HEATER GROUND
3 P64 20VT MIRROR VERTICAL POSITION SIGNAL
4 P69 20GY MIRROR SENSOR GROUND
5 P65 20DG MIRROR HORIZONTAL POSITION SIGNAL
6 C117 20BK MIRROR HEATER 12 VOLT SUPPLY
7 P91 20WT MIRROR COMMON DRIVER
8 P93 20RD MIRROR VERTICAL DRIVER
9 M21 20PK/DG COURTESY LAMP DRIVER
10 P110 20YL (BUILT-UP-EXPORT) FOLDING MIRROR RETURN
11 P99 20DB (BUILT-UP-EXPORT) FOLDING MIRROR FEED
12 L121 20BK/RD COURTESY LAMP GROUND
8W - 80 - 68 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

INPUT SPEED SENSOR (4.7L) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 T52 18RD/BK INPUT SPEED SENSOR SIGNAL
2 T13 18DB/BK SPEED SENSOR GROUND
INSTRUMENT CLUSTER - WHITE 12 WAY
CAV CIRCUIT FUNCTION
1 L61 20TN/LG LEFT TURN SIGNAL
2 L60 20TN RIGHT TURN SIGNAL
3- -
4- -
5 G9 20GY/BK RED BRAKE WARNING INDICATOR DRIVER
6 F33 20PK/RD FUSED B(+)
7 G5 20DB/WT FUSED IGNITION SWITCH OUTPUT (RUN-START)
8 D19 20VT/OR BODY CONTROL MODULE FLASH ENABLE
9 Z300 20BK GROUND
10 D25 20YL/VT/RD PCI BUS
11 Z132 20BK/OR GROUND
12 - -
INTAKE AIR TEMPERATURE SENSOR (DIESEL) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K4 20BK/LB SENSOR GROUND
2 K21 20DG/WT INTAKE AIR TEMPERATURE SENSOR SIGNAL
INTAKE AIR TEMPERATURE SENSOR (GAS) - GRAY 2 WAY
CAV CIRCUIT FUNCTION
1 K4 18BK/LB SENSOR GROUND
2 K21 18BK/RD INTAKE AIR TEMPERATURE SENSOR SIGNAL
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 85

INTAKE PORT SWIRL ACTUATOR (DIESEL) - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 Z18 18BK GROUND
2 F15 18RD/DG FUSED AUTO SHUT DOWN RELAY OUTPUT
3 K900 18GY INTAKE PORT SWIRL ACTUATOR SIGNAL
INTRUSION TRANSCEIVER MODULE (BUILT-UP-EXPORT) - BLACK 6 WAY
CAV CIRCUIT FUNCTION
1 Z155 20BK GROUND
2- -
3 X75 20GY/LG SIREN SIGNAL CONTROL
4- -
5 D25 20YL/VT PCI BUS
6 F70 20PK FUSED B(+)
JUNCTION BLOCK BODY CONTROL MODULE - BLACK 26 WAY
CAV CIRCUIT FUNCTION
1 L308 PARK LAMP RELAY CONTROL
2 L26 FOG LAMP RELAY CONTROL
3 Q29 ACCESSORY DELAY RELAY CONTROL
4 L307 LOW BEAM RELAY CONTROL
5 G5 FUSED IGNITION SWITCH OUTPUT (RUN-START)
6 X4 HORN RELAY CONTROL
7 V16 WIPER HIGH/LOW RELAY CONTROL
8 G80 LIFTGATE FLIP-UP AJAR SWITCH SENSE
9 L11 HIGH BEAM RELAY CONTROL
10 L91 HAZARD SWITCH SENSE
11 C80 REAR WINDOW DEFOGGER RELAY CONTROL
12 Z2 GROUND
13 L96 (BUILT-UP-EXPORT) REAR FOG LAMP RELAY CONTROL
14 L7 PARK LAMP RELAY OUTPUT
15 Z1 GROUND
16 M2 COURTESY LAMP DRIVER
17 - -
18 - -
19 M20 COURTESY LAMP LOAD SHED
20 V55 WIPER PARK SWITCH SENSE
21 G78 LIFTGATE AJAR SWITCH SENSE
22 G10 SEAT BELT SWITCH SENSE
23 G77 LEFT REAR DOOR AJAR SWITCH SENSE
24 G73 LIFTGATE COURTESY DISABLE
25 V23 FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
26 M1 FUSED B(+)
8W - 80 - 86 8W-80 CONNECTOR PIN-OUTWJ

PASSENGER BLEND DOOR MOTOR/ACTUATOR (RHD) (AZC) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
A C94 20WT/DG (RHD) PASSENGER BLEND DOOR DRIVER (A)
B C96 20WT/DB (RHD) PASSENGER BLEND DOOR DRIVER (B)
PASSENGER CURTAIN AIRBAG - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 R72 20LB/WT PASSENGER CURTAIN SQUIB LINE 2
2 R74 20LB/YL PASSENGER CURTAIN SQUIB LINE 1
PASSENGER DOOR LOCK MOTOR/AJAR SWITCH - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1 G74 18TN/RD PASSENGER DOOR AJAR SWITCH SENSE
2 Z1 18BK GROUND
3 P36 18PK/VT DOOR UNLOCK DRIVER
4 P35 18OR/VT DOOR LOCK DRIVER
PASSENGER DOOR MODULE C1 - WHITE 15 WAY
CAV CIRCUIT FUNCTION
1 A146 12OR/WT FUSED B(+)
2 Q24 16DG PASSENGER REAR WINDOW DRIVER (DOWN)
3 Q14 16GY PASSENGER REAR WINDOW DRIVER (UP)
4 Z1 12BK GROUND
5 P35 18OR/VT DOOR LOCK DRIVER
6- -
7 P36 18PK/VT DOOR UNLOCK DRIVER
8- -
9 D25 20YL/VT PCI BUS
10 - -
11 G74 18TN/RD PASSENGER DOOR AJAR SWITCH SENSE
12 E20 20OR/DB PASSENGER REAR DOOR SWITCH ILLUMINATION
13 Q12 16BR PASSENGER WINDOW DRIVER (UP)
14 - -
15 Q22 16VT PASSENGER WINDOW DRIVER (DOWN)
8W - 80 - 102 8W-80 CONNECTOR PIN-OUTWJ

PASSENGER SIDE IMPACT SENSOR - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1- -
2- -
3 R134 20LB/BR PASSENGER SIDE IMPACT SENSOR GROUND
4 R132 20LG/VT PASSENGER SIDE IMPACT SENSOR SIGNAL
POWER AMPLIFIER C1 (PREMIUM RADIO) - WHITE 18 WAY
CAV CIRCUIT FUNCTION
1 D25 18YL/VT PCI BUS
2 F60 16RD/WT FUSED B(+)
3 Z9 16BK GROUND
4- -
5 X58 18DB/OR RIGHT REAR SPEAKER (-)
6 X57 18DG/WT LEFT REAR SPEAKER (-)
7 X56 18DB/PK RIGHT FRONT SPEAKER (-)
8 X55 18BR/RD LEFT FRONT SPEAKER (-)
9- -
10 F60 16RD/WT FUSED B(+)
11 Z9 16BK GROUND
12 - -
13 X64 18BR/WT ENABLE SIGNAL TO AMPLIFIER
14 - -
15 X52 18DB/WT RIGHT REAR SPEAKER (+)
16 X51 18WT/DG LEFT REAR SPEAKER (+)
17 X54 18VT RIGHT FRONT SPEAKER (+)
18 X53 18DG/OR LEFT FRONT SPEAKER (+)
POWER AMPLIFIER C2 (PREMIUM RADIO) - WHITE 12 WAY
CAV CIRCUIT FUNCTION
1 X90 18WT/VT RIGHT REAR DOOR SPEAKER (+)
2 X92 18TN/DG RIGHT REAR DOOR SPEAKER (-)
3 X85 18LG/DG LEFT FRONT DOOR SPEAKER (-)
4 X83 18YL/RD LEFT INSTRUMENT PANEL SPEAKER (+)
5 X84 18OR/GY RIGHT INSTRUMENT PANEL SPEAKER (-)
6 X93 18DG/WT LEFT REAR DOOR SPEAKER (+)
7 X91 18WT/DG LEFT REAR DOOR SPEAKER (-)
8 X87 18LG/RD LEFT FRONT DOOR SPEAKER (+)
9 X80 18LB/BK RIGHT FRONT DOOR SPEAKER (-)
10 X82 18LB/RD RIGHT FRONT DOOR SPEAKER (+)
11 X81 18YL/BK LEFT INSTRUMENT PANEL SPEAKER (-)
12 X86 18OR/RD RIGHT INSTRUMENT PANEL SPEAKER (+)
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 107

POWERTRAIN CONTROL MODULE C3 (GAS) - GRAY 32 WAY
CAV CIRCUIT FUNCTION
1 C13 18DB/OR A/C COMPRESSOR CLUTCH RELAY CONTROL
2- -
3 K51 18DB/YL AUTO SHUT DOWN RELAY CONTROL
4 V36 18TN/RD SPEED CONTROL VACUUM SOLENOID CONTROL
5 V35 18LG/RD SPEED CONTROL VENT SOLENOID CONTROL
6- -
7 K42 18DB/LG (4.7L HIGH OUTPUT) KNOCK SENSOR NO. 1 SIGNAL
8 K99 18BR/OR OXYGEN SENSOR 1/1 HEATER CONTROL
9 K512 18RD/YL (EXCEPT 4.0L
BUILT-UP-EXPORT)OXYGEN SENSOR DOWNSTREAM RELAY CONTROL
10 K106 18WT/DG (EXCEPT
BUILT-UP-EXPORT)LEAK DETECTION PUMP SOLENOID CONTROL
11 V32 18OR/DG SPEED CONTROL SUPPLY
12 F42 18DG/LG FUSED AUTO SHUT DOWN RELAY OUTPUT
13 T10 18YL/DG (4.7L RHD) TORQUE MANAGEMENT REQUEST SENSE
13 T6 18OR/WT (4.0L LHD) OVERDRIVE OFF SWITCH SENSE
13 T10 18DG/LG (4.7L LHD) TORQUE MANAGEMENT REQUEST SENSE
13 T6 18OR/BK (4.0L RHD) OVERDRIVE OFF SWITCH SENSE
14 K107 18OR/PK (EXCEPT
BUILT-UP-EXPORT)LEAK DETECTION PUMP SWITCH SENSE
15 K25 18VT/LG BATTERY TEMPERATURE SENSOR SIGNAL
16 K299 18BR/WT OXYGEN SENSOR 1/2 HEATER CONTROL
17 - -
18 K142 18GY/BK (4.7L HIGH OUTPUT) KNOCK SENSOR NO. 2 SIGNAL
19 K31 18BR FUEL PUMP RELAY CONTROL
20 K52 18PK/BK DUTY CYCLE EVAP/PURGE SOLENOID CONTROL
21 - -
22 - -
23 - -
24 K29 18WT/PK SECONDARY BRAKE SWITCH SIGNAL
25 K125 18WT/DB GENERATOR SOURCE
26 K226 18LB/YL FUEL LEVEL SENSOR SIGNAL
27 D21 18PK SCI TRANSMIT
28 - -
29 D32 18LG (LHD) SCI RECEIVE
29 D32 18LG/DG (RHD) SCI RECEIVE
30 D25 18VT/YL PCI BUS
31 - -
32 V37 18RD/LG SPEED CONTROL SWITCH SIGNAL
RADIATOR FAN MOTOR - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 C23 12DG RADIATOR FAN RELAY OUTPUT
2 Z4 12BK/PK GROUND
8W - 80 - 110 8W-80 CONNECTOR PIN-OUTWJ

RADIATOR FAN RELAY - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1 Z1 20BK GROUND
2 C24 20DB/PK RADIATOR FAN RELAY CONTROL
3 C23 12DG RADIATOR FAN RELAY OUTPUT
4 A16 12GY FUSED B(+)
RADIO C1 - GRAY 22 WAY
CAV CIRCUIT FUNCTION
1 F60 16RD/WT FUSED B(+)
2 X12 16WT/RD FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
3 E2 20OR PANEL LAMPS DRIVER
4- -
5- -
6- -
7 X54 18VT RIGHT FRONT SPEAKER (+)
8 X56 18DB/PK RIGHT FRONT SPEAKER (-)
9 X55 18BR/RD LEFT FRONT SPEAKER (-)
10 X53 18DG/OR LEFT FRONT SPEAKER (+)
11 Z9 16BK GROUND
12 F60 16RD/WT FUSED B(+)
13 X64 18BR/WT ENABLE SIGNAL TO AMPLIFIER
14 D25 20YL/VT/DB PCI BUS
15 - -
16 - -
17 - -
18 X51 18WT/DG LEFT REAR SPEAKER (+)
19 X57 18DG/WT LEFT REAR SPEAKER (-)
20 X58 18DB/OR RIGHT REAR SPEAKER (-)
21 X52 18DB/WT RIGHT REAR SPEAKER (+)
22 Z9 16BK GROUND
RADIO C2 - GRAY 10 WAY
CAV CIRCUIT FUNCTION
1 X40 20WT/RD AUDIO OUT RIGHT
2 Z4 20WT/BK GROUND
3 Z5 20BK/LB SHIELD
4- -
5 X112 20RD IGNITION SWITCH OUTPUT (RUN-ACC)
6 X41 20WT/DG AUDIO OUT LEFT
7 Z17 20BK GROUND
8- -
9- -
10 X160 20YL FUSED B(+)
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 111

RAIN SENSOR (AUTOWIPE) - BLACK 6 WAY
CAV CIRCUIT FUNCTION
1- -
2 D25 20BK/PK PCI BUS
3- -
4 Z155 20BK/OR GROUND
5 Q30 20BK/LB ACCESSORY DELAY RELAY OUTPUT
6- -
REAR POWER OUTLET - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 A148 16LG/RD FUSED B(+)
2- -
3 Z151 16BK GROUND
REAR WASHER PUMP - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 Z141 18BK GROUND
2 V20 18BK/WT REAR WASHER PUMP MOTOR CONTROL
REAR WIPER MOTOR - BLACK 6 WAY
CAV CIRCUIT FUNCTION
1 Z1 18BK GROUND
2 V13 18BR/LG REAR WIPER MOTOR CONTROL
3 G80 20VT/YL LIFTGATE FLIP-UP AJAR SWITCH SENSE
4 V22 18BR/YL REAR WIPER MOTOR DELAY CONTROL
5 F70 18BK FUSED B(+)
6- -
RECIRCULATION DOOR MOTOR/ACTUATOR (AZC) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
A C32 20GY/DB (LHD) RECIRCULATION DOOR DRIVER (A)
A C100 20YL/DB (RHD) RECIRCULATION DOOR DRIVER (B)
B C100 20YL/DB (LHD) RECIRCULATION DOOR DRIVER (B)
B C32 20GY/DB (RHD) RECIRCULATION DOOR DRIVER (A)
8W - 80 - 112 8W-80 CONNECTOR PIN-OUTWJ