2003 JEEP GRAND CHEROKEE pump

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 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

JUNCTION BLOCK C4 - WHITE 2 WAY
CAV CIRCUIT FUNCTION
1 A148 10PK/WT FUSED B(+)
2 A148 10OR/WT FUSED B(+)
JUNCTION BLOCK C5 - WHITE 3 WAY
CAV CIRCUIT FUNCTION
1 A145 10WT/RD FUSED B(+)
2 A149 12RD/TN FUSED B(+)
3 A147 10RD/GY FUSED B(+)
KNOCK SENSOR - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1 K4 18BK/LB SENSOR GROUND
2 K42 18DB/LG KNOCK SENSOR NO. 1 SIGNAL
3 K4 18BK/LB SENSOR GROUND
4 K142 18GY/BK KNOCK SENSOR NO. 2 SIGNAL
LEAK DETECTION PUMP (EXCEPT BUILT-UP-EXPORT)-4WAY
CAV CIRCUIT FUNCTION
1- -
2 K125 18OR/DG GENERATOR SOURCE
3 K106 20WT/DG LEAK DETECTION PUMP SOLENOID CONTROL
4 K107 20OR/YL LEAK DETECTION PUMP SWITCH SENSE
LEFT COURTESY LAMP - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 F70 20PK/BK FUSED B(+)
2 M2 20YL COURTESY LAMP DRIVER
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 91

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

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

RIGHT HIGH BEAM HEADLAMP - BLACK 2 WAY
CAV CIRCUIT FUNCTION
A Z1 18BK GROUND
B L34 18RD/OR FUSED RIGHT HIGH BEAM OUTPUT
RIGHT INSTRUMENT PANEL SPEAKER - WHITE 2 WAY
CAV CIRCUIT FUNCTION
1 X86 18OR/RD RIGHT INSTRUMENT PANEL SPEAKER (+)
2 X84 18OR/BK RIGHT INSTRUMENT PANEL SPEAKER (-)
RIGHT LIFTGATE AJAR SWITCH - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 Z1 20BK GROUND
2 G78 20TN/BK LIFTGATE AJAR SWITCH SENSE
RIGHT LOW BEAM HEADLAMP - GRAY 2 WAY
CAV CIRCUIT FUNCTION
A Z1 18BK GROUND
B L44 18VT/RD FUSED RIGHT LOW BEAM OUTPUT
RIGHT MULTI-FUNCTION SWITCH - WHITE 10 WAY
CAV CIRCUIT FUNCTION
1 V23 20BR/PK FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
2 V20 18BK/WT REAR WASHER PUMP MOTOR CONTROL
3 V10 20BR WASHER PUMP SWITCH SENSE
4- -
5 V13 18BR/LG REAR WIPER MOTOR CONTROL
6 V22 18BR/YL REAR WIPER MOTOR DELAY CONTROL
7 V9 20WT/BK WINDSHIELD WIPER SWITCH RETURN
8 V52 20DG/RD WINDSHIELD WIPER SWITCH MUX
9 V48 20RD/GY WIPER HIGH CONTROL
10 - -
8W - 80 - 116 8W-80 CONNECTOR PIN-OUTWJ

CONNECTOR NAME/
NUMBERCOLOR LOCATION FIG.
Blower Motor Controller (AZC) BK Behind Right Hand Side of
Instrument PanelN/S
Blower Motor Resistor Block
(MTC)BK Behind Right Hand Side of
Instrument PanelN/S
Body Control Module - C1 GY Lower Left Side of Instrument Panel 21, 22
Body Control Module-C2 -LHD WT Lower Left Side of Instrument Panel 21
Body Control Module-C2 -
RHDGY Lower Left Side of Instrument Panel 22
Boost Pressure Sensor
(Diesel)BK Top Front of Engine N/S
Brake Lamp Switch GY Brake Pedal Arm 31
C100 BK Right Front Engine Compartment 2, 5
C101 (4.0L RHD) LTGY Rear of Engine Compartment 15
C101 (4.7L RHD) BK Rear of Engine Compartment N/S
C102 (Diesel) BK Left Rear Engine Compartment 4, 7
C102 (Gas) BK Right Rear Engine Compartment 5, 10, 11, 14, 15, 18
C103 (Diesel) LTGY Rear of Engine 4, 7
C103 (Gas) GY Right Rear Engine Compartment 5, 10 11, 14, 15
C104 LTGY Right Rear Engine Compartment 14 18
C105 (Diesel) GY Right Rear Engine Compartment 4, 7, 8
C106 (Diesel) GY Lower Right Instrument Panel N/S
C106 (Gas RHD) GY Lower Right Instrument Panel N/S
C107 (Diesel) GY Left Rear Engine Compartment 4
C107 (LHD) BK Passenger Side Near Kick Panel 3, 30, 35
C107 (RHD) GY Passenger Side Near Kick Panel 3, 31
C108 BK Left Cowl 3, 4
C109 BK Near Transfer Case switch 12
C110 (Diesel) GY Top of Engine Near Glow Plugs 4, 7
C111 BK Left Front Frame Near Windshield
Washer Pump1, 3, 4
C112 BK Right Front Frame Near Horns 1, 5
C113 (Diesel) LTGY Rear of Engine 7, 8
C200 - LHD GY Passenger Side Near Kick Panel 19, 21, 35
C200 - RHD BK Passenger Side Near Kick Panel 20, 22
C201) WT Below Center Floor Console, Near
Park Brake19, 20, 21, 22
C202 WT HVAC Unit, Right Side of Instrument
Panel19, 20, 21, 22
C203 (AZC) WT HVAC Unit, Right Side of Instrument
Panel19, 20, 21, 22
C300 (LHD) GY Near Junction Block 30, 33
C301 (RHD) BK Near Junction Block 31
C302 BK At Driver Door 24, 25, 30, 31
8W - 91 - 2 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONWJ
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

CONNECTOR NAME/
NUMBERCOLOR LOCATION FIG.
Driver Power Seat Horizontal
Motor Sensor (Premium II/III)BK At Driver Seat N/S
Driver Power Seat Rear Riser
MotorRD At Driver Seat N/S
Driver Power Seat Rear Riser
Motor Sensor (Premium II/III)BK At Driver Seat N/S
Driver Power Seat Recliner
MotorBK At Driver Seat N/S
Driver Power Seat Recliner
Motor Sensor (Premium II/III)BK At Driver Seat N/S
Driver Power Seat Switch
(Midline/Premium)GN At Driver Seat N/S
Driver Rear Power Window
MotorBK In Left Rear Door 28
Driver Rear Power Window
SwitchBL In Left Rear Door 28
Driver Seat Belt Switch At Switch N/S
EGR Solenoid (Diesel) BK Left Front Fender 7, 8
Electric Brake BL Near Junction Block N/S
Electronic Speed Control Servo BK Right Front of Engine Compartment 5
Engine Control Module C1
(Diesel)BK Left Front of Engine 7, 8
Engine Control Module C2
(Diesel)BK Left Front of Engine 7, 8
Engine Coolant Temperature
Sensor (Diesel)BK Top of Engine N/S
Engine Coolant Temperature
Sensor (GAS)BK Front of Engine 9, 13
Engine Oil Pressure Sensor BK Side of Engine 10, 11, 13
EVAP/Purge Solenoid BK Left Front Fender Near Controller
Antilock Brake3
Front Power Outlet RD Center of Instrument Panel 19, 20
Front Washer Pump WT Left Front of Engine Compartment 3, 4
Front Wiper Motor BK Left Side of Cowl 3, 4
Fuel Injector No.1 BK At Injector 7, 9, 13
Fuel Injector No.2 BK At Injector 7, 9, 14, 15
Fuel Injector No.3 BK At Injector 7, 9, 13
Fuel Injector No.4 BK At Injector 7, 9, 14, 15
Fuel Injector No.5 BK At Injector 9, 13
Fuel Injector No.6 BK At Injector 9, 14, 15
Fuel Injector No.7 (4.7L) BK At Injector 13
Fuel Injector No.8 (4.7L) BK At Injector 14, 15
Fuel Pressure Sensor (Diesel) BK Right Front of Engine N/S
Fuel Pressure Solenoid
(Diesel)BK Top of Engine N/S
WJ8W-91 CONNECTOR/GROUND/SPLICE LOCATION 8W - 91 - 5
CONNECTOR/GROUND/SPLICE LOCATION (Continued)