relay JEEP GRAND CHEROKEE 2003 WJ / 2.G Owners Manual

8W-51 REAR LIGHTING
Component Page
Adjustable Pedals Module.............. 8W-51-7
Automatic Day/Night Mirror.......... 8W-51-7, 8
Back-Up Lamp Relay................. 8W-51-9
Body Control Module............. 8W-51-2, 3, 10
Brake Lamp Switch................ 8W-51-5, 6
Center High Mounted Stop Lamp...... 8W-51-5, 6
Controller Antilock Brake............ 8W-51-5, 6
Electric Brake....................... 8W-51-5
Fuse 6........................... 8W-51-2, 3
Fuse 20............................ 8W-51-9
Fuse 23.......................... 8W-51-5, 6
Fuse 27........................... 8W-51-10
G200............................ 8W-51-2, 3
G300................. 8W-51-2, 3, 5, 6, 7, 8, 10
G301............... 8W-51-2, 3, 4, 5, 6, 7, 8, 10Component Page
Junction Block............ 8W-51-2, 3, 5, 6, 9, 10
Left Rear Lamp
Assembly............ 8W-51-2, 3, 5, 6, 7, 8, 10
License Lamp No. 1.................. 8W-51-4
License Lamp No. 2.................. 8W-51-4
Park Lamp Relay.................. 8W-51-2, 3
Park/Neutral Position Switch......... 8W-51-7, 8
Rear Fog Lamp Relay................ 8W-51-10
Right Rear Lamp
Assembly............ 8W-51-2, 3, 5, 6, 7, 8, 10
Shifter Assembly..................... 8W-51-9
Trailer Tow Brake Lamp Relay.......... 8W-51-5
Trailer Tow Connector................. 8W-51-7
Transmission Solenoid/TRS
Assembly....................... 8W-51-7, 8
WJ8W-51 REAR LIGHTING 8W - 51 - 1

8W-52 TURN SIGNALS
Component Page
Body Control Module............... 8W-52-3, 5
Combination Flasher.......... 8W-52-2, 3, 5, 7, 8
Fuse 4............................. 8W-52-2
Fuse 6........................... 8W-52-3, 5
Fuse 20............................ 8W-52-2
G106............................ 8W-52-5, 6
G108............................ 8W-52-3, 4
G200.......................... 8W-52-2, 3, 5
G300............................ 8W-52-7, 8
G301............................ 8W-52-7, 8
Instrument Cluster................. 8W-52-3, 5
Junction Block............... 8W-52-2, 3, 5, 7, 8
Left Front Park Lamp................ 8W-52-6
Left Front Park/Turn Signal Lamp....... 8W-52-6Component Page
Left Front Side Marker Lamp........... 8W-52-6
Left Front Turn Signal Lamp......... 8W-52-5, 6
Left Multi-Function Switch............. 8W-52-2
Left Rear Lamp Assembly............ 8W-52-7, 8
Left Side Repeater Lamp.............. 8W-52-5
Park Lamp Relay.................. 8W-52-3, 5
Right Front Park Lamp............... 8W-52-4
Right Front Park/Turn Signal Lamp...... 8W-52-4
Right Front Side Marker Lamp......... 8W-52-4
Right Front Turn Signal Lamp........ 8W-52-3, 4
Right Rear Lamp Assembly......... 8W-52-3, 7, 8
Right Side Repeater Lamp............. 8W-52-3
Trailer Tow Left Turn Relay............ 8W-52-7
Trailer Tow Right Turn Relay........... 8W-52-7
WJ8W-52 TURN SIGNALS 8W - 52 - 1

8W-53 WIPERS
Component Page
Accessory Delay Relay................ 8W-53-5
Body Control Module............ 8W-53-2, 3, 4, 6
Circuit Breaker No. 1............... 8W-53-3, 4
Diagnostic Junction Port............... 8W-53-5
Front Washer Pump.................. 8W-53-2
Front Wiper Motor............... 8W-53-3, 4, 5
Fuse 8............................. 8W-53-6
Fuse 25............................ 8W-53-5
Fuse 29............................ 8W-53-2
G106.......................... 8W-53-2, 5, 6Component Page
G301............................ 8W-53-5, 6
Junction Block............... 8W-53-2, 3, 4, 5, 6
Liftgate Flip-Up Ajar Switch............ 8W-53-6
Rain Sensor........................ 8W-53-5
Rear Washer Pump................... 8W-53-6
Rear Wiper Motor.................... 8W-53-6
Right Multi-Function Switch.......... 8W-53-2, 6
Washer Fluid Level Switch............. 8W-53-2
Wiper High/Low Relay............ 8W-53-3, 4, 5
Wiper On/Off Relay............... 8W-53-3, 4, 5
WJ8W-53 WIPERS 8W - 53 - 1

8W-54 TRAILER TOW
Component Page
Body Control Module................. 8W-54-2
Brake Lamp Switch................ 8W-54-3, 5
Cigar Lighter Relay.................. 8W-54-4
Circuit Breaker...................... 8W-54-4
Combination Flasher................. 8W-54-5
Electric Brake..................... 8W-54-3, 5
Fuse 6............................. 8W-54-2
Fuse 18............................ 8W-54-5
Fuse 23............................ 8W-54-3
G200.............................. 8W-54-2
G300.............................. 8W-54-3Component Page
G301.............................. 8W-54-5
Junction Block................ 8W-54-2, 3, 4, 5
Park Lamp Relay.................... 8W-54-2
Park/Neutral Position Switch........... 8W-54-4
Trailer Tow Brake Lamp Relay...... 8W-54-3, 5, 6
Trailer Tow Circuit Breaker............ 8W-54-4
Trailer Tow Connector........... 8W-54-2, 3, 4, 6
Trailer Tow Left Turn Relay.......... 8W-54-5, 6
Trailer Tow Right Turn Relay......... 8W-54-5, 6
Transmission Solenoid/TRS Assembly..... 8W-54-4
WJ8W-54 TRAILER TOW 8W - 54 - 1

8W-64 POWER SUNROOF
Component Page
Accessory Delay Relay................ 8W-64-2
Body Control Module................. 8W-64-2
Fuse 25............................ 8W-64-2
G301............................ 8W-64-2, 3Component Page
Junction Block...................... 8W-64-2
Sunroof Control Module............. 8W-64-2, 3
Sunroof Motor....................... 8W-64-2
Sunroof Switch...................... 8W-64-3
WJ8W-64 POWER SUNROOF 8W - 64 - 1

Component Page
LIFTGATE FLIP-UP PUSH
BUTTON SWITCH................ 8W-80-97
LIFTGATE FLIP-UP RELEASE
SOLENOID...................... 8W-80-97
LIFTGATE POWER LOCK MOTOR..... 8W-80-97
LINE PRESSURE SENSOR (4.7L)...... 8W-80-98
MANIFOLD ABSOLUTE PRESSURE
SENSOR (4.0L)................... 8W-80-98
MANIFOLD ABSOLUTE PRESSURE
SENSOR (4.7L)................... 8W-80-98
MANUAL TEMPERATURE
CONTROL C1 (MTC).............. 8W-80-98
MANUAL TEMPERATURE
CONTROL C2 (MTC).............. 8W-80-99
MASS AIR FLOW SENSOR (DIESEL) . . . 8W-80-99
MODE DOOR MOTOR/ACTUATOR
(AZC).......................... 8W-80-99
NEEDLE MOVEMENT SENSOR
(DIESEL)....................... 8W-80-99
OUTPUT SPEED SENSOR (4.0L)...... 8W-80-99
OUTPUT SPEED SENSOR (4.7L)..... 8W-80-100
OVERHEAD MAP/COURTESY LAMP . . 8W-80-100
OXYGEN SENSOR 1/1 UPSTREAM.... 8W-80-100
OXYGEN SENSOR 1/2 DOWNSTREAM . 8W-80-100
OXYGEN SENSOR 2/1 UPSTREAM.... 8W-80-100
OXYGEN SENSOR 2/2
DOWNSTREAM................. 8W-80-101
PARK/NEUTRAL POSITION SWITCH
(4.0L).......................... 8W-80-101
PARK/NEUTRAL POSITION SWITCH
(DIESEL)...................... 8W-80-101
PASSENGER AIRBAG.............. 8W-80-101
PASSENGER BLEND DOOR
MOTOR/ACTUATOR (LHD) (AZC) . . . 8W-80-101
PASSENGER BLEND DOOR
MOTOR/ACTUATOR (RHD) (AZC) . . . 8W-80-102
PASSENGER CURTAIN AIRBAG...... 8W-80-102
PASSENGER DOOR LOCK MOTOR/AJAR
SWITCH....................... 8W-80-102
PASSENGER DOOR MODULE C1..... 8W-80-102
PASSENGER DOOR MODULE C2..... 8W-80-103
PASSENGER FRONT DOOR
COURTESY LAMP............... 8W-80-103
PASSENGER FRONT POWER
WINDOW MOTOR............... 8W-80-103
PASSENGER HEATED SEAT BACK
(PREMIUM I/III)................. 8W-80-103
PASSENGER HEATED SEAT CUSHION
(PREMIUM I/III)................. 8W-80-104
PASSENGER HEATED SEAT SWITCH . 8W-80-104
PASSENGER LUMBAR MOTOR
(MIDLINE/PREMIUM)............ 8W-80-104
PASSENGER LUMBAR SWITCH
(MIDLINE/PREMIUM)............ 8W-80-104
PASSENGER POWER MIRROR....... 8W-80-105Component Page
PASSENGER POWER SEAT FRONT
RISER MOTOR.................. 8W-80-105
PASSENGER POWER SEAT
HORIZONTAL MOTOR........... 8W-80-105
PASSENGER POWER SEAT REAR
RISER MOTOR.................. 8W-80-105
PASSENGER POWER SEAT RECLINER
MOTOR (MIDLINE/PREMIUM)..... 8W-80-106
PASSENGER POWER SEAT SWITCH
(MIDLINE/PREMIUM)............ 8W-80-106
PASSENGER REAR POWER
WINDOW MOTOR............... 8W-80-106
PASSENGER REAR POWER
WINDOW SWITCH............... 8W-80-106
PASSENGER SEAT BELT SWITCH.... 8W-80-106
PASSENGER SIDE IMPACT
SENSOR....................... 8W-80-107
POWER AMPLIFIER C1
(PREMIUM RADIO).............. 8W-80-107
POWER AMPLIFIER C2
(PREMIUM RADIO).............. 8W-80-107
POWER CONNECTOR.............. 8W-80-108
POWERTRAIN CONTROL
MODULE C1 (GAS).............. 8W-80-108
POWERTRAIN CONTROL
MODULE C2 (GAS).............. 8W-80-109
POWERTRAIN CONTROL
MODULE C3 (GAS).............. 8W-80-110
RADIATOR FAN MOTOR............ 8W-80-110
RADIATOR FAN RELAY............. 8W-80-111
RADIO C1........................ 8W-80-111
RADIO C2........................ 8W-80-111
RAIN SENSOR (AUTOWIPE)......... 8W-80-112
REAR POWER OUTLET............. 8W-80-112
REAR WASHER PUMP.............. 8W-80-112
REAR WIPER MOTOR.............. 8W-80-112
RECIRCULATION DOOR
MOTOR/ACTUATOR (AZC)......... 8W-80-112
RED BRAKE WARNING INDICATOR
SWITCH....................... 8W-80-113
REMOTE KEYLESS MODULE
(JAPAN)....................... 8W-80-113
RIGHT COURTESY LAMP........... 8W-80-113
RIGHT DOOR HANDLE
COURTESY LAMP............... 8W-80-113
RIGHT FOG LAMP................. 8W-80-113
RIGHT FRONT DOOR SPEAKER..... 8W-80-114
RIGHT FRONT IMPACT SENSOR..... 8W-80-114
RIGHT FRONT PARK LAMP......... 8W-80-114
RIGHT FRONT PARK/TURN SIGNAL LAMP
(EXCEPT BUILT-UP-EXPORT)...... 8W-80-114
RIGHT FRONT SIDE MARKER LAMP
(EXCEPT BUILT-UP-EXPORT)...... 8W-80-115
RIGHT FRONT TURN SIGNAL LAMP
(BUILT-UP-EXPORT)............. 8W-80-115
8W - 80 - 4 8W-80 CONNECTOR PIN-OUTWJ

Component Page
RIGHT FRONT WHEEL SPEED
SENSOR....................... 8W-80-115
RIGHT HEADLAMP LEVELING MOTOR
(BUILT-UP-EXPORT)............. 8W-80-115
RIGHT HIGH BEAM HEADLAMP..... 8W-80-116
RIGHT INSTRUMENT PANEL
SPEAKER...................... 8W-80-116
RIGHT LIFTGATE AJAR SWITCH..... 8W-80-116
RIGHT LOW BEAM HEADLAMP..... 8W-80-116
RIGHT MULTI-FUNCTION SWITCH . . . 8W-80-116
RIGHT REAR DOOR LOCK
MOTOR/AJAR SWITCH........... 8W-80-117
RIGHT REAR DOOR SPEAKER....... 8W-80-117
RIGHT REAR LAMP ASSEMBLY...... 8W-80-117
RIGHT REAR WHEEL SPEED
SENSOR....................... 8W-80-117
RIGHT REMOTE RADIO SWITCH.... 8W-80-117
RIGHT SIDE REPEATER LAMP
(BUILT-UP-EXPORT)............. 8W-80-118
RIGHT VISOR/VANITY LAMP........ 8W-80-118
SEAT BELT SWITCH............... 8W-80-118
SEAT MODULE C1 (PREMIUM)...... 8W-80-118
SEAT MODULE C2 (PREMIUM)...... 8W-80-119
SENTRY KEY IMMOBILIZER
MODULE...................... 8W-80-119
SHIFTER ASSEMBLY
(C201 DIESEL).................. 8W-80-119
SHIFTER ASSEMBLY (GAS)......... 8W-80-120
SHIFTER ASSEMBLY C1 (DIESEL).... 8W-80-120
SHIFTER ASSEMBLY C2 (DIESEL).... 8W-80-120
SIREN (BUILT-UP-EXPORT)......... 8W-80-120
SPEED CONTROL SWITCH NO. 1.... 8W-80-120
SPEED CONTROL SWITCH NO. 2.... 8W-80-121
SUNROOF CONTROL MODULE...... 8W-80-121
SUNROOF MOTOR C1.............. 8W-80-121
SUNROOF MOTOR C2.............. 8W-80-121
SUNROOF SWITCH................ 8W-80-121Component Page
TEMPERATURE VALVE
ACTUATOR (MTC)............... 8W-80-122
THROTTLE POSITION
SENSOR (4.0L).................. 8W-80-122
THROTTLE POSITION
SENSOR (4.7L).................. 8W-80-122
TRAILER TOW BRAKE
LAMP RELAY................... 8W-80-122
TRAILER TOW CIRCUIT
BREAKER...................... 8W-80-122
TRAILER TOW CONNECTOR........ 8W-80-123
TRAILER TOW LEFT TURN
RELAY........................ 8W-80-123
TRAILER TOW RIGHT TURN
RELAY........................ 8W-80-123
TRANSFER CASE POSITION
SENSOR....................... 8W-80-123
TRANSMISSION CONTROL
MODULE (4.7L)................. 8W-80-124
TRANSMISSION CONTROL
MODULE C1 (DIESEL)........... 8W-80-125
TRANSMISSION CONTROL
MODULE C2 (DIESEL)........... 8W-80-125
TRANSMISSION SOLENOID (4.0L).... 8W-80-125
TRANSMISSION SOLENOID
ASSEMBLY (DIESEL)............ 8W-80-126
TRANSMISSION SOLENOID/TRS
ASSEMBLY (4.7L)................ 8W-80-126
UNDERHOOD LAMP............... 8W-80-126
VEHICLE INFORMATION CENTER . . . 8W-80-127
VISCOUS/CABIN HEATER
(DIESEL)...................... 8W-80-127
WASHER FLUID LEVEL SWITCH.... 8W-80-127
WASTEGATE SOLENOID
(DIESEL)...................... 8W-80-127
WATER IN FUEL SENSOR
(DIESEL)...................... 8W-80-127
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 5

A/C COMPRESSOR CLUTCH - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 C2 18DB/YL A/C COMPRESSOR CLUTCH RELAY OUTPUT
2 Z18 18BK GROUND
A/C PRESSURE TRANSDUCER - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1 K4 18BK/LB SENSOR GROUND
2 K6 18VT/WT (DIESEL) SENSOR REFERENCE VOLTAGE B
2 K6 18VT/BK (GAS) 5 VOLT SUPPLY
3 C18 18DB A/C PRESSURE SIGNAL
4- -
ACCELERATOR PEDAL POSITION SENSOR (DIESEL) - BLACK 10 WAY
CAV CIRCUIT FUNCTION
1- -
2 F855 18BR/YL SENSOR REFERENCE VOLTAGE A
3 K22 14RD/DB ACCELERATOR PEDAL POSITION SENSOR 2 SIGNAL
4- -
5- -
6 K225 18BK ACCELERATOR PEDAL POSITION SENSOR 2 GROUND
7 K81 20DB/DG ACCELERATOR PEDAL POSITION SENSOR 1 SIGNAL
8 K255 20WT/DG ACCELERATOR PEDAL POSITION SENSOR 1 GROUND
9- -
10 Y43 20WT/VT ACCELERATOR PEDAL POSITION SENSOR 1 5-VOLT
SUPPLY
ADJUSTABLE PEDALS MODULE (EXCEPT BUILT-UP-EXPORT) - GREEN 14 WAY
CAV CIRCUIT FUNCTION
1 Y151 20LG/BR ADJUSTABLE PEDALS SWITCH SENSE (FORWARD)
2 Y152 20LG/OR ADJUSTABLE PEDALS SWITCH SENSE (REARWARD)
3 Q110 16OR/VT ADJUSTABLE PEDALS MOTOR (FORWARD)
4 F72 16RD/YL FUSED B(+)
5- -
6 Q111 16OR/GY ADJUSTABLE PEDALS MOTOR (REARWARD)
7 Q113 20OR/DB (MEMORY) PEDAL POSITION SENSOR FEED
8 Q112 20OR/YL (MEMORY) PEDAL POSITION SENSOR SENSE
9 Q114 20OR/TN (MEMORY) PEDAL POSITION SENSOR RETURN
10 Z151 16BK GROUND
11 Z155 20BK/OR GROUND
12 L1 18WT/BR BACK-UP LAMP FEED
13 D25 20VT/YL PCI BUS
14 Y153 16DB/RD ADJUSTABLE PEDALS SWITCH FEED
8W - 80 - 6 8W-80 CONNECTOR PIN-OUTWJ

ASH RECEIVER LAMP - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 Z300 20BK GROUND
2 E2 20OR PANEL LAMPS DRIVER
AUTOMATIC DAY/NIGHT MIRROR - BLACK 7 WAY
CAV CIRCUIT FUNCTION
1 G5 20BK/LG FUSED IGNITION SWITCH OUTPUT (RUN-START)
2 Z150 20BK GROUND
3 L1 20BK/VT BACK-UP LAMP FEED
4 P112 20BK/WT AUTO DAY/NIGHT MIRROR (+)
5 P114 20BK/YL AUTO DAY/NIGHT MIRROR (-)
6- -
7- -
AUTOMATIC HEADLAMP LIGHT SENSOR/VTSS LED - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1 L109 20WT ULTRALIGHT SENSOR SIGNAL
2 L110 20BK/YL ULTRALIGHT SENSOR RETURN
3 G69 20BK/OR VTSS INDICATOR DRIVER
4 M1 20PK FUSED B(+)
AUTOMATIC ZONE CONTROL MODULE C1 (AZC) - WHITE 16 WAY
CAV CIRCUIT FUNCTION
1 C102 20TN/BK MODE DOOR DRIVER (B)
2- -
3 C32 20GY/DB RECIRCULATION DOOR DRIVER (A)
4 C100 20YL/DB RECIRCULATION DOOR DRIVER (B)
5- -
6 C79 20BK/WT FUSED REAR WINDOW DEFOGGER RELAY OUTPUT
7- -
8 Z118 20BK GROUND
9 C35 20DG/YL MODE DOOR DRIVER (A)
10 C33 20DB/RD DRIVER BLEND DOOR DRIVER (A)
11 - -
12 - -
13 - -
14 C81 20LB/WT REAR WINDOW DEFOGGER SWITCH SENSE
15 - -
16 - -
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 9

BODY CONTROL MODULE C1 - GRAY 26 WAY
CAV CIRCUIT FUNCTION
1 Z132 20BK/OR GROUND
2 G52 20YL HEADLAMP SWITCH MUX
3 E19 20RD PANEL LAMPS DIMMER SIGNAL
4- -
5 G70 20BR/TN (BUILT-UP-EXPORT LHD
RHD)HOOD AJAR SWITCH SENSE
6 G26 20LB KEY-IN IGNITION SWITCH SENSE
7 G76 18TN/YL RIGHT REAR DOOR AJAR SWITCH SENSE
8 E2 20OR PANEL LAMPS DRIVER
9 E2 20OR PANEL LAMPS DRIVER
10 E2 20OR PANEL LAMPS DRIVER
11 - -
12 E2 20OR PANEL LAMPS DRIVER
13 E2 20OR PANEL LAMPS DRIVER
14 Z132 20BK/OR GROUND
15 D25 20YL/VT/WT PCI BUS
16 L80 20WT/DG HEADLAMP SWITCH RETURN
17 D19 20VT/OR BODY CONTROL MODULE FLASH ENABLE
18 - -
19 - -
20 G69 20BK/OR VTSS INDICATOR DRIVER
21 - -
22 V14 20RD/VT WIPER ON/OFF RELAY CONTROL
23 M20 20BR/OR COURTESY LAMP LOAD SHED
24 M2 20YL COURTESY LAMP DRIVER
25 Z234 20BK GROUND
26 - -
BODY CONTROL MODULE C2 - GRAY 22 WAY
CAV CIRCUIT FUNCTION
1 C103 20DG A/C SWITCH SIGNAL
2 V10 20BR WASHER PUMP SWITCH SENSE
3 V48 20RD/GY WIPER HIGH CONTROL
4 L40 20BR HIGH BEAM SWITCH SENSE
5 V11 20BK/TN WASHER FLUID SWITCH SENSE
6 P134 20TN/LG PASSENGER SEAT HEATER SWITCH MUX
7 P133 20TN/DG DRIVER SEAT HEATER SWITCH MUX
8 X20 20RD/YL RADIO CONTROL MUX
9 G31 20VT/LG AMBIENT TEMPERATURE SENSOR SIGNAL
10 L109 20WT ULTRALIGHT SENSOR SIGNAL
11 V52 20DG/RD WINDSHIELD WIPER SWITCH MUX
12 C81 20LB/WT REAR WINDOW DEFOGGER SWITCH SENSE
13 - -
14 - -
15 L27 20WT/TN FOG LAMP SWITCH SENSE
16 C201 20LB/YL EVAPORATOR TEMPERATURE SENSOR SIGNAL
17 G18 20PK/BK COOLANT LEVEL SWITCH SENSE
18 P132 20OR/BK SEAT HEATER SWITCH SENSOR GROUND
19 X10 20RD/BK RADIO CONTROL MUX RETURN
20 G32 20BK/LB SENSOR GROUND
21 L110 20BK/YL ULTRALIGHT SENSOR RETURN
22 V9 20WT/BK WINDSHIELD WIPER SWITCH RETURN
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 11