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

LINE PRESSURE SENSOR (4.7L) - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1 Z114 14BK/LB GROUND
2 T138 14GY/LB 5 VOLT SUPPLY
3 T130 14VT/TN LINE PRESSURE SENSOR SIGNAL
4- -
MANIFOLD ABSOLUTE PRESSURE SENSOR (4.0L) - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 K4 18BK/LB SENSOR GROUND
2 K1 18DG/RD MAP SENSOR SIGNAL
3 K7 18OR 5 VOLT SUPPLY
MANIFOLD ABSOLUTE PRESSURE SENSOR (4.7L) - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 K1 18DG/RD MAP SENSOR SIGNAL
2 K4 18BK/LB SENSOR GROUND
3 K7 18OR 5 VOLT SUPPLY
MANUAL TEMPERATURE CONTROL C1 (MTC) - WHITE 11 WAY
CAV CIRCUIT FUNCTION
1 C103 20DG A/C SWITCH SIGNAL
2 Z123 20BK/OR GROUND
3 C67 20RD/LB BLEND AIR DOOR POSITION CONTROL
4 C79 20BK/WT FUSED REAR WINDOW DEFOGGER RELAY OUTPUT
5 C81 20LB/WT REAR WINDOW DEFOGGER SWITCH SENSE
6 F22 20WT/PK FUSED IGNITION SWITCH OUTPUT (RUN)
7 E2 20OR PANEL LAMPS DRIVER
8 C4 16TN BLOWER MOTOR LOW DRIVER
9 C5 16LG BLOWER MOTOR M1 DRIVER
10 C6 14LB BLOWER MOTOR M2 DRIVER
11 - -
8W - 80 - 98 8W-80 CONNECTOR PIN-OUTWJ

MANUAL TEMPERATURE CONTROL C2 (MTC) - WHITE 2 WAY
CAV CIRCUIT FUNCTION
1 Z118 12BK GROUND
2 C7 12BK/TN BLOWER MOTOR HIGH DRIVER
MASS AIR FLOW SENSOR (DIESEL) - BLACK 5 WAY
CAV CIRCUIT FUNCTION
1- -
2 F15 16RD/DG FUSED AUTO SHUT DOWN RELAY OUTPUT
3 Z189 20BR MASS AIR FLOW SENSOR GROUND
4 F855 20BR/YL SENSOR REFERENCE VOLTAGE A
5 K155 20YL/WT MASS AIR FLOW SENSOR SIGNAL
MODE DOOR MOTOR/ACTUATOR (AZC) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
A C102 20TN/BK (LHD) MODE DOOR DRIVER (B)
A C35 20DG/YL (RHD) MODE DOOR DRIVER (A)
B C35 20DG/YL (LHD) MODE DOOR DRIVER (A)
B C102 20TN/BK (RHD) MODE DOOR DRIVER (B)
NEEDLE MOVEMENT SENSOR (DIESEL) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K67 18BR/BK NEEDLE MOVEMENT SENSOR SIGNAL
2 K68 18LG/YL NEEDLE MOVEMENT SENSOR GROUND
OUTPUT SPEED SENSOR (4.0L) - GRAY 2 WAY
CAV CIRCUIT FUNCTION
1 T13 18DB/BK SPEED SENSOR GROUND
2 T14 18LG/WT OUTPUT SPEED SENSOR SIGNAL
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 99

OXYGEN SENSOR 2/2 DOWNSTREAM-4WAY
CAV CIRCUIT FUNCTION
1 K200 18VT/OR (4.0L) OXYGEN SENSOR DOWNSTREAM RELAY OUTPUT
1 K200 18BR/WT (4.7L) OXYGEN SENSOR DOWNSTREAM RELAY OUTPUT
2 Z186 18BK GROUND
3 K4 18BK/LB SENSOR GROUND
4 K341 18TN/WT (4.0L) OXYGEN SENSOR 2/2 SIGNAL
4 K341 18PK/WT (4.7L) OXYGEN SENSOR 2/2 SIGNAL
PARK/NEUTRAL POSITION SWITCH (4.0L) - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 L1 18VT/BK BACK-UP LAMP FEED
2 T41 18BK/WT PARK/NEUTRAL POSITION SWITCH SENSE (T41)
3 F22 18WT/PK FUSED IGNITION SWITCH OUTPUT (RUN)
PARK/NEUTRAL POSITION SWITCH (DIESEL) - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 L1 18VT/BK BACK-UP LAMP FEED
2 T41 18BR/YL PARK/NEUTRAL POSITION SWITCH SENSE (T41)
3 F22 18WT/TN FUSED IGNITION SWITCH OUTPUT (RUN)
PASSENGER AIRBAG - YELLOW 4 WAY
CAV CIRCUIT FUNCTION
1 R42 20BK/YL PASSENGER SQUIB 1 LINE 1
2 R44 20DG/YL PASSENGER SQUIB 1 LINE 2
3 R64 20TN/YL PASSENGER SQUIB 2 LINE 1
4 R62 20OR/YL PASSENGER SQUIB 2 LINE 2
PASSENGER BLEND DOOR MOTOR/ACTUATOR (LHD) (AZC) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
A C96 20WT/DB (LHD) PASSENGER BLEND DOOR DRIVER (B)
B C94 20WT/DG (LHD) PASSENGER BLEND DOOR DRIVER (A)
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 101

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

POWER CONNECTOR - WHITE 2 WAY
CAV CIRCUIT FUNCTION
1 F85 16VT/WT FUSED B(+)
2 Z234 16BK GROUND
POWERTRAIN CONTROL MODULE C1 (GAS) - BLACK 32 WAY
CAV CIRCUIT FUNCTION
1 K93 14TN/OR COIL DRIVER NO. 3
2 F991 18OR/DB FUSED IGNITION SWITCH OUTPUT (RUN-START)
3 K94 14TN/LG (4.7L) COIL DRIVER NO. 4
4 K4 18BK/LB SENSOR GROUND
5 K96 14TN/LB (4.7L) COIL DRIVER NO. 6
6 T41 18BK/WT PARK/NEUTRAL POSITION SWITCH SENSE (T41)
7 K91 14TN/RD COIL DRIVER NO. 1
8 K24 18GY/BK CRANKSHAFT POSITION SENSOR SIGNAL
9 K98 14LB/RD (4.7L) COIL DRIVER NO. 8
10 K60 18YL/BK IDLE AIR CONTROL NO. 2 DRIVER
11 K40 18BR/WT IDLE AIR CONTROL NO. 3 DRIVER
12 - -
13 - -
14 K77 18LG/BK TRANSFER CASE POSITION SENSOR INPUT
15 K21 18BK/RD INTAKE AIR TEMPERATURE SENSOR SIGNAL
16 K2 18TN/BK ENGINE COOLANT TEMPERATURE SENSOR SIGNAL
17 K7 18OR 5 VOLT SUPPLY
18 K44 18TN/YL CAMSHAFT POSITION SENSOR SIGNAL
19 K39 18GY/BK IDLE AIR CONTROL NO. 1 DRIVER
20 K59 18VT/BK IDLE AIR CONTROL NO. 4 DRIVER
21 K95 14TN/DG (4.7L) COIL DRIVER NO. 5
22 A7 14RD/BK FUSED B(+)
23 K22 18OR/RD THROTTLE POSITION SENSOR SIGNAL
24 K41 18BK/DG OXYGEN SENSOR 1/1 SIGNAL
25 K141 18TN/WT OXYGEN SENSOR 1/2 SIGNAL
26 K241 18LG/RD (EXCEPT 4.0L
BUILT-UP-EXPORT)OXYGEN SENSOR 2/1 SIGNAL
27 K1 18DG/RD MAP SENSOR SIGNAL
28 - -
29 K341 18TN/WT (4.0L EXCEPT
BUILT-UP-EXPORT)OXYGEN SENSOR 2/2 SIGNAL
29 K341 18PK/WT (4.7L) OXYGEN SENSOR 2/2 SIGNAL
30 - -
31 Z82 14BK/WT GROUND
32 Z81 14BK/TN GROUND
8W - 80 - 108 8W-80 CONNECTOR PIN-OUTWJ

TEMPERATURE VALVE ACTUATOR (MTC) - BLACK 6 WAY
CAV CIRCUIT FUNCTION
5- -
6- -
7 Z132 20BK/OR GROUND
8 C67 20RD/LB BLEND AIR DOOR POSITION CONTROL
9- -
10 F22 20WT/PK FUSED IGNITION SWITCH OUTPUT (RUN)
THROTTLE POSITION SENSOR (4.0L) - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 K7 18OR 5 VOLT SUPPLY
2 K4 18BK/LB SENSOR GROUND
3 K22 18OR/RD THROTTLE POSITION SENSOR SIGNAL
THROTTLE POSITION SENSOR (4.7L)-3WAY
CAV CIRCUIT FUNCTION
1 K7 18OR 5 VOLT SUPPLY
2 K22 18OR/RD THROTTLE POSITION SENSOR SIGNAL
3 K4 18BK/LB SENSOR GROUND
TRAILER TOW BRAKE LAMP RELAY - BLACK 5 WAY
CAV CIRCUIT FUNCTION
30 (3) F9 14RD/BK FUSED B(+)
85 (2) L50 18WT/TN PRIMARY BRAKE SWITCH SIGNAL
86 (1) Z150 18BK GROUND
87 (5) L95 14DG/YL TRAILER TOW BRAKE LAMP RELAY OUTPUT
87A
(4)L94 14OR/WT TRAILER TOW BRAKE LAMP RELAY OUTPUT
TRAILER TOW CIRCUIT BREAKER - BLACK 2 WAY
CAV CIRCUIT FUNCTION
A F30 14RD/WT FUSED CIGAR LIGHTER RELAY OUTPUT
B F30 14RD/TN CIGAR LIGHTER RELAY OUTPUT
8W - 80 - 122 8W-80 CONNECTOR PIN-OUTWJ

8W-91 CONNECTOR/GROUND/SPLICE LOCATION
TABLE OF CONTENTS
page
CONNECTOR/GROUND/SPLICE LOCATION
DESCRIPTION..........................1
CONNECTOR/GROUND/SPLICE
LOCATION
DESCRIPTION
This section provides illustrations identifying con-
nector, ground, and splice locations in the vehicle.Connector, ground, and splice indexes are provided.
Use the wiring diagrams in each section for connec-
tor, ground, and splice identification. Refer to the
appropriate index for the proper figure number. For
items that are not shown in this section N/S is placed
in the Fig. column.
CONNECTORS
CONNECTOR NAME/
NUMBERCOLOR LOCATION FIG.
A/C Compressor Clutch BK At A/C Compressor 9, 13
A/C Pressure Transducer BK Right Front of Engine Compartment 3, 4, 5
Accelerator Pedal Position
Sensor (Diesel)BK Rear of Engine Compartment Near
Fuel/Water Seperator7
Adjustable Pedals Module
(Except Built-up Export)GN Above Drivers Control Pedals N/S
Adjustable Pedals Motor/
Sensor Assembly (Except
Built-up Export)Above Drivers Control Pedals N/S
Adjustable Pedals Switch WT Drivers Lower Kick Panel 21
Airbag Control Module (ORC)
C1YL Below Center Floor Console, Near
Park Brake19, 20, 21, 22
Airbag Control Module (ORC)
C2YL Below Center Floor Console, Near
Park Brake19, 20, 21, 22
Ambient Temperature Sensor BK On Radiator Center Support 5
Antenna Module (Built-up-
export)WT Above Right Quarter Window N/S
Ash Receiver Lamp BK Below Cigarette Lighter 19, 20
Automatic Day/Night Mirror BK In Front of Rear View Mirror N/S
Automatic Headlamp Light
Sensor/VTSS LEDBK Near Left Instrument Panel Speaker 19, 20
Automatic Zone Control
Module - C1 (AZC)WT Left Side of HVAC Housing N/S
Automatic Zone Control
Module - C2 (AZC)WT Left Side of HVAC Housing N/S
Battery Temperature Sensor BK Below Battery Tray 4, 5
Blower Motor BK Behind Right Hand Side of
Instrument PanelN/S
WJ8W-91 CONNECTOR/GROUND/SPLICE LOCATION 8W - 91 - 1

CONNECTOR NAME/
NUMBERCOLOR LOCATION FIG.
Coil On Plug NO. 8 (4.7L) BK Right Side of Engine Near Fuel
Injector No.814, 15
Coil Rail (4.0L) BK Right Rear of Engine 10, 11
Compact Disc Changer BK Near Radio N/S
Compact Disc Changer BK Right Rear Quarter Panel 37
Controller Antilock Brake BK Left Front Engine Compartment 3, 4
Coolant Level Sensor LT GY Right Rear of Engine 5
Crankcase Heater (Diesel) BK Near T/O for G105 8
Crankshaft Position Sensor
(Diesel)BK Rear of Engine Near Transmission
Bell HousingN/S
Crankshaft Position Sensor
(Gas)BK Rear of Engine Near Transmission
Bell Housing10, 11, 14, 15, 17
Data Link Connector BK Under Lower Driver's Side of
Instrument Panel20, 21, 22
Diagnostic Junction Port BK At Steering Column 23
Driver Airbag Squib 1 BK In Steering Wheel N/S
Driver Airbag Squib 2 BK In Steering Wheel N/S
Driver Blend Door Motor/
Actuator (AZC)BK On HVAC Housing N/S
Driver Cylinder Lock Switch GY In Driver Door 24, 25
Driver Door Lock Motor/Ajar
SwitchBK In Driver Door 24, 25
Driver Door Module - C1 WT In Driver Door 24, 25
Driver Door Module - C2 BK In Driver Door N/S
Driver Door Module - C3 BK In Driver Door N/S
Driver Front Door Courtesy
LampBK In Driver Door N/S
Driver Front Power Window
MotorBK In Driver Door 24, 25
Driver Heated Seat Back
(Premium I/III)GN At Driver Seat N/S
Driver Heated Seat Cushion
(Premium I/III)BK At Driver Seat N/S
Driver Heated Seat Switch WT Center of Instrument Panel 19 20, 21
Driver Lumbar Motor
(Midline/Premium)BK At Driver Seat N/S
Driver Lumbar Switch
(Midline/Premium)WT At Driver Seat N/S
Driver Power Mirror BK At Driver Door N/S
Driver Power Seat Front Riser
MotorRD At Driver Seat N/S
Driver Power Seat Front Riser
Motor Sensor (Premium II/III)BK At Driver Seat N/S
Driver Power Seat Horizontal
MotorBK At Driver Seat N/S
8W - 91 - 4 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONWJ
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

CONNECTOR NAME/
NUMBERCOLOR LOCATION FIG.
Fuel Pump Module (Gas) BK Near Fuel Tank 33, 35
Fuel Tank Module Diesel) BK Near Fuel Tank 33, 35
Generator (Diesel) LTGY At Generator 8
Generator (Gas) BK At Generator N/S
Glove Box Lamp BK Inside Glove Box 19, 20, 22
Headlamp Leveling Switch
(Built-Up-Export)WT Driver Side of Instrument Panel 20
Hood Ajar Switch BK Left Side of Engine Compartment 3, 4
Horn No.1 BK Right Front Fascia 5
Horn No.2 BK Right Front Fascia 5
Hydraulic Cooling Module BK Right Front of Engine Compartment 5
Idle Air Control Motor BK Left Side of Engine Near Throttle
Body13
Ignition Switch - C1 WT On Steering Column 23
Ignition Switch - C2 BK On Steering Column 23
Input Speed Sensor (4.7L) BK Left Side of Transmission 16
Instrument Cluster WT At Instrument Cluster 19, 20
Intake Air Temperature Sensor
(Gas)GY Left Side of Engine 9, 13
Intake Air Temperature Sensor
(Diesel)BK Near T/O for Crankcase Heater 8
Intake Port Swirl Actuator
(Diesel)BK Right Rear of Engine Compartment N/S
Intrusion Transceiver Module
(Built-up-Export)BK In The Overhead N/S
Junction Block - C1 BK At Junction Block 30, 31, 33
Junction Block - C2 BK At Junction Block 30, 31
Junction Block - C3 BK At Junction Block 21, 22, 30
Junction Block - C4 WT At Junction Block 30, 31
Junction Block - C5 WT At Junction Block 30, 31
Knock Sensor (4.7L High
Output)BK Right Rear Side of Engine, Near
Coil on Plug No.8N/S
Leak Detection Pump (Except
Built-Up-Export)Left Front Wheel Opening 3
Left Courtesy Lamp BK Left Side of Instrument Panel 21 22, 23
Left Curtain Airbag BK Near Left C Pillar 37
Left Door Handle Courtesy
LampBK At Lamp N/S
Left Fog Lamp BK At Lamp 3, 4
Left Front Door Speaker WT In Left Front Door 24, 27
Left Front Impact Sensor BK Left Front Frame Near Windshield
Washer Pump3, 4
Left Front Park Lamp WT At Lamp N/S
8W - 91 - 6 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONWJ
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

CONNECTOR NAME/
NUMBERCOLOR LOCATION FIG.
Left Front Park/Turn Signal
Lamp (Except Built-Up-Export)BK At Lamp N/S
Left Front Side Marker Lamp
(Except Built-Up-Export)WT At Lamp N/S
Left Front Turn Signal Lamp
(Built-Up-Export)WT At Lamp N/S
Left Front Wheel Speed
SensorGY At Left Front Wheel Opening 4
Left Headlamp Leveling Motor
(Built-Up-Export)BK At Motor N/S
Left High Beam Headlamp BK At Lamp N/S
Left Instrument Panel Speaker WT At Speaker 19, 20
Left Liftgate Ajar Switch BK In Liftgate 38
Left Low Beam Headlamp GY At Lamp N/S
Left Multi-Function Switch WT On Steering Column 23
Left Rear Door Lock Motor/Ajar
SwitchBK In Left Rear Door 28
Left Rear Door Speaker WT In Left Rear Door 28
Left Rear Lamp Assembly BK At Lamp Assembly 37
Left Rear Wheel Speed Sensor GY Near Left Rear Wheel 33, 35
Left Remote Radio Switch BK At Switch in Steering Wheel N/S
Left Side Impact Sensor BK Left Body N/S
Left Side Repeater Lamp
(Built-Up-Export)BK On Left Front Fender 3, 4
Left Visor/Vanity Lamp BK At Lamp N/S
License Lamp No.1 BK At Lamp N/S
License Lamp No.2 BK At Lamp N/S
Liftgate Flip-Up Ajar Switch GY In Liftgate 38
Liftgate Flip-Up Push Button
SwitchBK In Liftgate N/S
Liftgate Flip-Up Release
SolenoidBK In Liftgate 38
Liftgate Lock Motor BK In Liftgate 38
Line Pressure Sensor (4.7L) BK Rear of Transmission N/S
Manifold Absolute Pressure
Sensor (4.0L)BK At Throttle Body 9
Manifold Absolute Pressure
Sensor (4.7L)BK Right Side of Engine 13
Manual Temperature Control -
C1 (MTC)WT Center of Instrument Panel N/S
Manual Temperature Control -
C2 (MTC)WT Center of Instrument Panel N/S
Mass Air Flow sensor (Diesel) BK Near T/O for G105 8
Mode Door Motor/Actuator
(AZC)BK Right Center of Instrument Panel N/S
WJ8W-91 CONNECTOR/GROUND/SPLICE LOCATION 8W - 91 - 7
CONNECTOR/GROUND/SPLICE LOCATION (Continued)