2002 JEEP GRAND CHEROKEE instrument panel

DESCRIPTION - CONNECTOR, GROUND AND
SPLICE INFORMATION
CAUTION: Not all connectors are serviced. Some
connectors are serviced only with a harness. A typ-
ical example might be the Supplemental Restraint
System connectors. Always check parts availability
before attempting a repair.
IDENTIFICATION
In-line connectors are identified by a number, as
follows:
²In-line connectors located in the engine compart-
ment are C100 series numbers
²In-line connectors located in the Instrument
Panel area are C200 series numbers.
²In-line connectors located in the body are C300
series numbers.
²Jumper harness connectors are C400 series
numbers.
²Grounds and ground connectors are identified
with a ªGº and follow the same series numbering as
the in-line connectors.
²Splices are identified with an ªSº and follow the
same series numbering as the in-line connectors.
²Component connectors are identified by the com-
ponent name instead of a number. Multiple connec-
tors on a component use a C1, C2, etc. identifier.
LOCATIONS
Section 8W-91 contains connector/ground/splice
location illustrations. The illustrations contain the
connector name (or number)/ground number/splice
number and component identification. Connector/
ground/splice location charts in section 8W-91 refer-
ence the figure numbers of the illustrations.
The abbreviation T/O is used in the component
location section to indicate a point in which the wir-
ing harness branches out to a component. The abbre-
viation N/S means Not Shown in the illustrations
WARNING
WARNINGS - GENERAL
WARNINGSprovide information to prevent per-
sonal injury and vehicle damage. Below is a list of
general warnings that should be followed any time a
vehicle is being serviced.
WARNING: ALWAYS WEAR SAFETY GLASSES FOR
EYE PROTECTION.
WARNING: USE SAFETY STANDS ANYTIME A PRO-
CEDURE REQUIRES BEING UNDER A VEHICLE.WARNING: BE SURE THAT THE IGNITION SWITCH
ALWAYS IS IN THE OFF POSITION, UNLESS THE
PROCEDURE REQUIRES IT TO BE ON.
WARNING: SET THE PARKING BRAKE WHEN
WORKING ON ANY VEHICLE. AN AUTOMATIC
TRANSMISSION SHOULD BE IN PARK. A MANUAL
TRANSMISSION SHOULD BE IN NEUTRAL.
WARNING: OPERATE THE ENGINE ONLY IN A
WELL-VENTILATED AREA.
WARNING: KEEP AWAY FROM MOVING PARTS
WHEN THE ENGINE IS RUNNING, ESPECIALLY THE
FAN AND BELTS.
WARNING: TO PREVENT SERIOUS BURNS, AVOID
CONTACT WITH HOT PARTS SUCH AS THE RADIA-
TOR, EXHAUST MANIFOLD(S), TAIL PIPE, CATA-
LYTIC CONVERTER AND MUFFLER.
WARNING: DO NOT ALLOW FLAME OR SPARKS
NEAR THE BATTERY. GASES ARE ALWAYS
PRESENT IN AND AROUND THE BATTERY.
WARNING: ALWAYS REMOVE RINGS, WATCHES,
LOOSE HANGING JEWELRY AND AVOID LOOSE
CLOTHING.
DIAGNOSIS AND TESTING - WIRING HARNESS
TROUBLESHOOTING TOOLS
When diagnosing a problem in an electrical circuit
there are several common tools necessary. These tools
are listed and explained below.
²Jumper Wire - This is a test wire used to con-
nect two points of a circuit. It can be used to bypass
an open in a circuit.
WARNING: NEVER USE A JUMPER WIRE ACROSS
A LOAD, SUCH AS A MOTOR, CONNECTED
BETWEEN A BATTERY FEED AND GROUND.
²Voltmeter - Used to check for voltage on a cir-
cuit. Always connect the black lead to a known good
ground and the red lead to the positive side of the
circuit.
CAUTION: Most of the electrical components used
in today's vehicles are Solid State. When checking
voltages in these circuits, use a meter with a 10 -
megohm or greater impedance rating.
WJ8W-01 WIRING DIAGRAM INFORMATION 8W - 01 - 7
WIRING DIAGRAM INFORMATION (Continued)

8W-47 AUDIO SYSTEM
Component Page
Antenna........................... 8W-47-2
Antenna Module..................... 8W-47-3
Body Control Module............. 8W-47-2, 3, 13
Clockspring........................ 8W-47-13
Compact Disc Changer.............. 8W-47-6, 7
Diagnostic Junction Port...... 8W-47-2, 3, 6, 7, 13
Fuse 5........................... 8W-47-2, 3
Fuse 30.......................... 8W-47-2, 3
G300............................ 8W-47-2, 3
Junction Block.................... 8W-47-2, 3Component Page
Left Front Door Speaker......... 8W-47-4, 10, 11
Left Instrument Panel Speaker....... 8W-47-4, 12
Left Rear Door Speaker.......... 8W-47-5, 10, 11
Left Remote Radio Switch............. 8W-47-13
Power Amplifier..... 8W-47-3, 6, 7, 8, 9, 10, 11, 12
Radio............. 8W-47-2, 3, 4, 5, 6, 7, 8, 9, 13
Right Front Door Speaker........ 8W-47-4, 10, 11
Right Instrument Panel Speaker..... 8W-47-4, 12
Right Rear Door Speaker......... 8W-47-5, 10, 11
Right Remote Radio Switch........... 8W-47-13
WJ8W-47 AUDIO SYSTEM 8W - 47 - 1

Component Page
DRIVER SEAT BELT SWITCH........ 8W-80-74
DRIVER SIDE IMPACT SENSOR...... 8W-80-74
EGR SOLENOID (DIESEL)........... 8W-80-74
ELECTRIC BRAKE
(EXCEPT BUILT-UP-EXPORT)...... 8W-80-74
ELECTRONIC SPEED CONTROL
SERVO ......................... 8W-80-74
ENGINE CONTROL MODULE C1
(DIESEL)....................... 8W-80-75
ENGINE CONTROL MODULE C2
(DIESEL)....................... 8W-80-76
ENGINE COOLANT TEMPERATURE
SENSOR (DIESEL)................ 8W-80-77
ENGINE COOLANT TEMPERATURE
SENSOR (GAS)................... 8W-80-77
ENGINE OIL PRESSURE
SENSOR (DIESEL)................ 8W-80-77
ENGINE OIL PRESSURE
SENSOR (GAS)................... 8W-80-78
EVAP/PURGE SOLENOID (GAS)....... 8W-80-78
FRONT POWER OUTLET............ 8W-80-78
FRONT WASHER PUMP............. 8W-80-78
FRONT WIPER MOTOR............. 8W-80-78
FUEL INJECTOR NO. 1 (DIESEL)..... 8W-80-79
FUEL INJECTOR NO. 1 (GAS)........ 8W-80-79
FUEL INJECTOR NO. 2 (DIESEL)..... 8W-80-79
FUEL INJECTOR NO. 2 (GAS)........ 8W-80-79
FUEL INJECTOR NO. 3 (DIESEL)..... 8W-80-79
FUEL INJECTOR NO. 3 (GAS)........ 8W-80-80
FUEL INJECTOR NO. 4 (DIESEL)..... 8W-80-80
FUEL INJECTOR NO. 4 (GAS)........ 8W-80-80
FUEL INJECTOR NO. 5 (DIESEL)..... 8W-80-80
FUEL INJECTOR NO. 5 (GAS)........ 8W-80-81
FUEL INJECTOR NO. 6 (GAS)........ 8W-80-81
FUEL INJECTOR NO. 7 (4.7L)........ 8W-80-81
FUEL INJECTOR NO. 8 (4.7L)........ 8W-80-81
FUEL PRESSURE SENSOR (DIESEL) . . 8W-80-82
FUEL PRESSURE SOLENOID
(DIESEL)....................... 8W-80-82
FUEL PUMP MODULE (GAS)......... 8W-80-82
FUEL TANK MODULE (DIESEL)...... 8W-80-82
GENERATOR (DIESEL).............. 8W-80-82
GENERATOR (GAS)................. 8W-80-83
GLOVE BOX LAMP................. 8W-80-83
HEADLAMP LEVELING SWITCH
(BUILT-UP-EXPORT).............. 8W-80-83
HOOD AJAR SWITCH
(BUILT-UP-EXPORT).............. 8W-80-83
HORN NO. 1....................... 8W-80-83
HORN NO. 2....................... 8W-80-84
HYDRAULIC COOLING MODULE..... 8W-80-84
IDLE AIR CONTROL MOTOR......... 8W-80-84
IGNITION SWITCH C1.............. 8W-80-84
IGNITION SWITCH C2.............. 8W-80-84
INPUT SPEED SENSOR (4.7L)........ 8W-80-85Component Page
INSTRUMENT CLUSTER............ 8W-80-85
INTAKE AIR TEMPERATURE
SENSOR (DIESEL)................ 8W-80-85
INTAKE AIR TEMPERATURE
SENSOR (GAS)................... 8W-80-85
INTAKE PORT SWIRL ACTUATOR
(DIESEL)....................... 8W-80-86
INTRUSION TRANSCEIVER MODULE
(BUILT-UP-EXPORT).............. 8W-80-86
JUNCTION BLOCK BODY
CONTROL MODULE.............. 8W-80-86
JUNCTION BLOCK C1.............. 8W-80-87
JUNCTION BLOCK C2 (LHD)......... 8W-80-88
JUNCTION BLOCK C2 (RHD)......... 8W-80-89
JUNCTION BLOCK C3.............. 8W-80-90
JUNCTION BLOCK C4.............. 8W-80-91
JUNCTION BLOCK C5.............. 8W-80-91
KNOCK SENSOR................... 8W-80-91
LEAK DETECTION PUMP (EXCEPT
BUILT-UP-EXPORT)............... 8W-80-91
LEFT COURTESY LAMP............. 8W-80-91
LEFT DOOR HANDLE COURTESY
LAMP.......................... 8W-80-92
LEFT FOG LAMP................... 8W-80-92
LEFT FRONT DOOR SPEAKER....... 8W-80-92
LEFT FRONT IMPACT SENSOR....... 8W-80-92
LEFT FRONT PARK LAMP........... 8W-80-92
LEFT FRONT PARK/TURN SIGNAL LAMP
(EXCEPT BUILT-UP-EXPORT)...... 8W-80-93
LEFT FRONT SIDE MARKER LAMP
(EXCEPT BUILT-UP-EXPORT)...... 8W-80-93
LEFT FRONT TURN SIGNAL LAMP
(BUILT-UP-EXPORT).............. 8W-80-93
LEFT FRONT WHEEL SPEED
SENSOR........................ 8W-80-93
LEFT HEADLAMP LEVELING MOTOR
(BUILT-UP-EXPORT).............. 8W-80-94
LEFT HIGH BEAM HEADLAMP....... 8W-80-94
LEFT INSTRUMENT PANEL SPEAKER . 8W-80-94
LEFT LIFTGATE AJAR SWITCH....... 8W-80-94
LEFT LOW BEAM HEADLAMP....... 8W-80-94
LEFT MULTI-FUNCTION SWITCH.... 8W-80-95
LEFT REAR DOOR LOCK
MOTOR/AJAR SWITCH............ 8W-80-95
LEFT REAR DOOR SPEAKER......... 8W-80-95
LEFT REAR LAMP ASSEMBLY........ 8W-80-95
LEFT REAR WHEEL SPEED
SENSOR........................ 8W-80-96
LEFT REMOTE RADIO SWITCH...... 8W-80-96
LEFT SIDE REPEATER LAMP
(BUILT-UP-EXPORT).............. 8W-80-96
LEFT VISOR/VANITY LAMP.......... 8W-80-96
LICENSE LAMP NO. 1.............. 8W-80-96
LICENSE LAMP NO. 2.............. 8W-80-97
LIFTGATE FLIP-UP AJAR SWITCH.... 8W-80-97
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 3

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

C200 - GRAY/LHD BLACK/RHD (INSTRUMENT
PANEL SIDE)
CAV CIRCUIT
A-
B-
C A1 12RD
D-
E-
F-
G A2 12PK/BK
H C1 12DG
J-
K-
L-
M-
1 X84 18OR/BK
2 X86 18OR/RD
3 X81 18YL/BK
4 X83 18YL/RD
5 X53 18DG/OR
6 X55 18BR/RD
7 X54 18VT
8 X56 18DB/PK
9 Y152 20LG/BR (EXCEPT
BUILT-UP-EXPORT)
10 D20 20LG
11 Y151 20LG/BR (EXCEPT
BUILT-UP-EXPORT)
12 Y153 20DB/RD (EXCEPT
BUILT-UP-EXPORT)
13 X40 20WT/RD
14 D25 20YL/VT/GY
15 D25 20YL/VT/BR
16 D32 20LG/DG
17 T41 18BK/WT (DIESEL)
18 Z4 20WT/BK
19 X41 20WT/DG
20 T6 18OR/WT (GAS)
21 D21 20PK
22 K29 18WT/PK
23 X160 20YL
24 X112 20RD
25 -
26 -
27 G70 20BR/TN (BUILT-UP-EXPORT)
28 R47 20DB/LB
29 Z17 20BK
30 R49 20LB
31 G76 18TN/YL
32 T2 20TN/BK (DIESEL)
33 -
34 -
35 X51 18WT/DG
36 X57 18DG/WT
37 L7 18BK/YL (BUILT-UP-EXPORT)
38 L13 20BR/YL (BUILT-UP-EXPORT)
39 V10 20BR
40 X52 18DB/WT
8W - 80 - 38 8W-80 CONNECTOR PIN-OUTWJ

C200 - GRAY/LHD BLACK/RHD (INSTRUMENT
PANEL SIDE)
CAV CIRCUIT
41 X58 18DB/OR
42 -
43 V13 18BR/LG
44 V14 20RD/VT
45 -
46 V20 18BK/WT
47 V22 18BR/YL
48 R46 20BR/LB
49 X64 18BR/WT
50 Z305 20BK/OR
51 Z306 20BK/LG
52 R48 20TN
53 G32 20BK/LB
54 G31 20VT/LG
55 Z9 16BK
56 V11 20BK/TN
57 G18 20PK/BK
58 V37 20RD/LG
59 K4 20BK/LB
60 -
C201 (DIESEL) - WHITE (INSTRUMENT PANEL
SIDE)
CAV CIRCUIT
1-
2 Z300 18BK
3 E2 20OR
4 K29 18WT/PK
5 D25 20YL/VT
6 D19 20VT/OR
7 D21 20PK
8 F12 20DB/WT
9 T2 20TN/BK
10 Z234 18BK
11 T41 18BK/WT
12 F991 18OR/DB
C201 (DIESEL) - WHITE (SHIFTER ASSEMBLY SIDE)
CAV CIRCUIT
1-
2-
3-
4 K2 20WT/PK
5 D25 20RD
6-
7 D21 20PK
8 F12 20DB/WT
9 T2 20TN/BK
10 Z234 20WT
11 T41 20BK/WT
12 F991 20OR/DB
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 39

C202 (AZC) - WHITE (INSTRUMENT PANEL SIDE)
CAV CIRCUIT
1 C100 20YL/DB (RHD)
1 C32 20GY/DB (LHD)
2 C100 20YL/DB (LHD)
2 C32 20GY/DB (RHD)
3 C96 20WT/DB (RHD)
3 C33 20DB/RD (LHD)
4 C94 20WT/DG (RHD)
4 C95 20WT/BK (LHD)
5 C95 20WT/BK (RHD)
5 C94 20WT/DG (LHD)
6 C33 20DB/RD (RHD)
6 C96 20WT/DB (LHD)
7 C35 20DG/YL (RHD)
7 C102 20TN/BK (LHD)
8 C35 20DG/YL (LHD)
8 C102 20TN/BK (RHD)
9 C56 20RD/LG
10 -
11 C201 20LB/YL
12 G32 20BK/LB
C202 (AZC) - WHITE (A/C SIDE)
CAV CIRCUIT
1 C100 20YL/DB (RHD)
1 C32 20GY/DB (LHD)
2 C100 20YL/DB (LHD)
2 C32 20GY/DB (RHD)
3 C96 20WT/DB (RHD)
3 C33 20DB/RD (LHD)
4 C94 20WT/DG (RHD)
4 C95 20WT/BK (LHD)
5 C95 20WT/BK (RHD)
5 C94 20WT/DG (LHD)
6 C33 20DB/RD (RHD)
6 C96 20WT/DB (LHD)
7 C35 20DG/YL (RHD)
7 C102 20TN/BK (LHD)
8 C35 20DG/YL (LHD)
8 C102 20TN/BK (RHD)
9 C56 20RD/LG
10 -
11 C201 20LB/YL
12 G32 20BK/LB
8W - 80 - 40 8W-80 CONNECTOR PIN-OUTWJ

C202 (MTC) - WHITE (INSTRUMENT PANEL SIDE)
CAV CIRCUIT
1-
2 C201 20LB/YL
3 G32 20BK/LB
4-
5 C67 20RD/LB
6-
7-
8-
9-
10 C6 14LB
11 Z132 20BK/OR
12 F22 20WT/PK
13 C7 12BK/TN
14 C1 12DG
15 C4 16TN
16 C5 16LG
C202 (MTC) - WHITE (A/C SIDE)
CAV CIRCUIT
1-
2 C101 20LB/YL
3 G32 20BK/LB
4-
5 C67 20RD/LB
6-
7-
8-
9-
10 C6 14LB
11 Z132 20BK/OR
12 F22 20WT/PK
13 C7 12BK/TN
14 C1 12DG
15 C4 16TN
16 C5 16LG
C203 (AZC) - WHITE (INSTRUMENT PANEL SIDE)
CAV CIRCUIT
1 Z118 12BK
2 C1 12DG
C203 (AZC) - WHITE (A/C SIDE)
CAV CIRCUIT
1 Z118 12BK
2 C1 12DG
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 41