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

SHIFTER ASSEMBLY (GAS) - WHITE 6 WAY
CAV CIRCUIT FUNCTION
1 E2 20OR PANEL LAMPS DRIVER
2 Z234 18BK GROUND
3 T6 18OR/WT OVERDRIVE OFF SWITCH SENSE
4 Z300 18BK GROUND
5 F12 20DB/WT FUSED IGNITION SWITCH OUTPUT (RUN-START)
6 K29 18WT/PK SECONDARY BRAKE SWITCH SIGNAL
SHIFTER ASSEMBLY C1 (DIESEL) - BLACK 12 WAY
CAV CIRCUIT FUNCTION
1 F991 20OR/DB FUSED IGNITION SWITCH OUTPUT (RUN-START)
2 F991 20OR/DB FUSED IGNITION SWITCH OUTPUT (RUN-START)
3 F991 20OR/DB FUSED IGNITION SWITCH OUTPUT (RUN-START)
4 T2 20TN/BK BACK-UP LAMP RELAY CONTROL
5 D25 20OR PCI BUS
6 W0 20DB/WT SHIFTER C1 SENSE
7 W1 20VT/WT SHIFTER C2 SENSE
8 W2 20VT SHIFTER C3 SENSE
9 W3 20BK SHIFTER C4 SENSE
10 W4 20PK/OR SHIFTER C5 SENSE
11 Z234 20WT GROUND
12 Z234 20WT GROUND
SHIFTER ASSEMBLY C2 (DIESEL)-6WAY
CAV CIRCUIT FUNCTION
1- -
2- -
3 F12 20DB/WT FUSED IGNITION SWITCH OUTPUT (RUN-START)
4 K2 20WT/PK SECONDARY BRAKE SWITCH SIGNAL
5 F991 20OR/DB FUSED IGNITION SWITCH OUTPUT (RUN-START)
6 Y1 20DB/PK PARK LOCKOUT SOLENOID CONTROL
SIREN (BUILT-UP-EXPORT)-3WAY
CAV CIRCUIT FUNCTION
1 Z141 18BK GROUND
2 X75 18GY/LB (DIESEL) SIREN SIGNAL CONTROL
2 X75 18GY/LG (GAS) SIREN SIGNAL CONTROL
3 M1 18PK FUSED B(+)
SPEED CONTROL SWITCH NO. 1 - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1- -
2 K4 20BK/LB SENSOR GROUND
3 V37 20RD/LG SPEED CONTROL SWITCH SIGNAL
4- -
8W - 80 - 120 8W-80 CONNECTOR PIN-OUTWJ

SPEED CONTROL SWITCH NO. 2 - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1- -
2 K4 20BK/LB SENSOR GROUND
3 V37 20RD/LG SPEED CONTROL SWITCH SIGNAL
4- -
SUNROOF CONTROL MODULE-8WAY
CAV CIRCUIT FUNCTION
A Q46 20OR/WT SUNROOF MOTOR POSITION SENSOR SIGNAL
B Q41 20WT SUNROOF OPEN
C Q43 20VT SUNROOF VENT
D Z1 16BK GROUND
E- -
F Q30 16DB ACCESSORY DELAY RELAY OUTPUT
G Q5 16RD SUNROOF MOTOR B(+)
H Q6 16OR SUNROOF MOTOR B(-)
SUNROOF MOTOR C1 - WHITE 2 WAY
CAV CIRCUIT FUNCTION
1 Q5 16RD SUNROOF MOTOR B(+)
2 Q6 16OR SUNROOF MOTOR B(-)
SUNROOF MOTOR C2 - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 Z1 20BK GROUND
2 Q46 20OR/WT SUNROOF MOTOR POSITION SENSOR SIGNAL
3- -
SUNROOF SWITCH - GRAY 5 WAY
CAV CIRCUIT FUNCTION
1 Q43 20VT SUNROOF VENT
2- -
3 Z150 20BK GROUND
4- -
5 Q41 20WT SUNROOF OPEN
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 121

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

TRAILER TOW CONNECTOR - BLACK 10 WAY
CAV CIRCUIT FUNCTION
1- -
2 L62 14BR/RD RIGHT TURN SIGNAL
3 L1 18VT/BK BACK-UP LAMP FEED
4 F30 14RD/WT FUSED CIGAR LIGHTER RELAY OUTPUT
5 L7 18BK/YL PARK LAMP RELAY OUTPUT
6- -
7 B40 14LB TRAILER TOW BRAKE B(+)
8 Z150 14BK GROUND
9 Z150 14BK GROUND
10 L63 14DG/RD LEFT TURN SIGNAL
TRAILER TOW LEFT TURN RELAY - BLACK 5 WAY
CAV CIRCUIT FUNCTION
30 (3) L63 16DG/RD LEFT TURN SIGNAL
85 (2) L63 14DG/RD LEFT TURN SIGNAL
86 (1) Z150 18BK GROUND
87 (5) L94 14OR/WT TRAILER TOW BRAKE LAMP RELAY OUTPUT
87A (4) L95 14DG/YL TRAILER TOW BRAKE LAMP RELAY OUTPUT
TRAILER TOW RIGHT TURN RELAY - BLACK 5 WAY
CAV CIRCUIT FUNCTION
30 (3) L62 14BR/RD RIGHT TURN SIGNAL
85 (2) L62 20BR/RD RIGHT TURN SIGNAL
86 (1) Z150 18BK GROUND
87 (5) L94 14OR/WT TRAILER TOW BRAKE LAMP RELAY OUTPUT
87A (4) L95 14DG/YL TRAILER TOW BRAKE LAMP RELAY OUTPUT
TRANSFER CASE POSITION SENSOR - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K77 20BR/WT (DIESEL) TRANSFER CASE POSITION SENSOR SIGNAL
1 K77 18LG/BK (GAS) TRANSFER CASE POSITION SENSOR INPUT
2 K4 20BK/LB (DIESEL) SENSOR GROUND
2 K4 18BK/LB (GAS) SENSOR GROUND
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 123

TRANSMISSION CONTROL MODULE (4.7L) - BLACK 60 WAY
CAV CIRCUIT FUNCTION
1 T1 18LG/BK TRS T1 SENSE
2 T2 18TN/BK TRS T2 SENSE
3 T3 18VT TRS T3 SENSE
4- -
5- -
6 K24 18GY/BK CRANKSHAFT POSITION SENSOR SIGNAL
7 D21 18PK SCI TRANSMIT
8 F45 18YL/RD FUSED IGNITION SWITCH OUTPUT (START)
9 T9 18OR/BK OVERDRIVE PRESSURE SWITCH SENSE
10 T10 18YL/DG TORQUE MANAGEMENT REQUEST SENSE
11 F991 18OR/DB FUSED IGNITION SWITCH OUTPUT (RUN-START)
12 K22 18OR/RD THROTTLE POSITION SENSOR SIGNAL
13 T13 18DB/BK SPEED SENSOR GROUND
14 T14 18LG/WT OUTPUT SPEED SENSOR SIGNAL
15 K30 18PK/YL TRANSMISSION CONTROL RELAY CONTROL
16 T16 14RD TRANSMISSION CONTROL RELAY OUTPUT
17 T16 14RD TRANSMISSION CONTROL RELAY OUTPUT
18 T118 18YL/DB PRESSURE CONTROL SOLENOID CONTROL
19 T119 18WT/DB 2C SOLENOID CONTROL
20 T120 18LG LR SOLENOID CONTROL
21 - -
22 - -
23 - -
24 - -
25 - -
26 - -
27 - -
28 - -
29 T29 18GY UNDERDRIVE PRESSURE SWITCH SENSE
30 T130 14VT/TN LINE PRESSURE SENSOR SIGNAL
31 - -
32 - -
33 - -
34 - -
35 - -
36 T16 14RD TRANSMISSION CONTROL RELAY OUTPUT
37 Z113 14BK/WT GROUND
38 T138 14GY/LB 5 VOLT SUPPLY
39 Z112 14BK/YL GROUND
40 T140 18VT/LG MS SOLENOID CONTROL
41 T41 18WT TRS T41 SENSE
42 T42 18VT/WT TRS T42 SENSE
43 D25 18YL/VT PCI BUS
44 - -
45 - -
46 D20 18LG SCI RECEIVE
47 T147 18LB 2C PRESSURE SWITCH SENSE
48 T48 18DB 4C PRESSURE SWITCH SENSE
49 T6 18VT/WT OVERDRIVE OFF SWITCH SENSE
50 T150 18BR/LB LR PRESSURE SWITCH SENSE
51 K4 18BK/LB SENSOR GROUND
52 T52 18RD/BK INPUT SPEED SENSOR SIGNAL
53 Z114 14BK/LG GROUND
54 T54 18VT TRANSMISSION TEMPERATURE SENSOR SIGNAL
55 T59 18PK UNDERDRIVE SOLENOID CONTROL
56 A30 14RD/WT FUSED B(+)
57 Z12 14BK/TN GROUND
58 - -
59 T159 18DG/WT 4C SOLENOID CONTROL
60 T60 18BR OVERDRIVE SOLENOID CONTROL
8W - 80 - 124 8W-80 CONNECTOR PIN-OUTWJ

TRANSMISSION CONTROL MODULE C1 (DIESEL) - BLACK 18 WAY
CAV CIRCUIT FUNCTION
1 D21 20PK SCI TRANSMIT
2- -
3 W4 20PK/OR SHIFTER C5 SENSE
4 Y1 20DB/PK PARK LOCKOUT SOLENOID CONTROL
5- -
6- -
7 T41 20BK/WT PARK/NEUTRAL POSITION SWITCH SENSE (T41)
8- -
9- -
10 - -
23 - -
24 - -
25 W0 20DB/WT SHIFTER C1 SENSE
26 W1 20VT/WT SHIFTER C2 SENSE
27 W2 20VT SHIFTER C3 SENSE
28 W3 20BK SHIFTER C4 SENSE
29 F991 20OR/DB FUSED IGNITION SWITCH OUTPUT (RUN-START)
30 Z234 20WT GROUND
TRANSMISSION CONTROL MODULE C2 (DIESEL) - BLACK 14 WAY
CAV CIRCUIT FUNCTION
12 T52 18RD/BK N2 INPUT SPEED SENSOR
13 T39 18GY/LB SENSOR SUPPLY VOLTAGE
14 T60 18BR 1-2/4-5 SOLENOID CONTROL
15 T159 18DG/WT 3-4 SOLENOID CONTROL
16 T119 18WT/DB 2-3 SOLENOID CONTROL
17 T120 18LG TCC SOLENOID CONTROL
33 T13 18DB/BK SENSOR GROUND
34 T54 18VT TEMP SENSOR - P/N SWITCH
35 T14 18LG/WT N3 INPUT SPEED SENSOR
36 T591 18YL/DB MODULATION PRESSURE SOLENOID CONTROL
37 T118 18YL/DB SHIFT PRESSURE SOLENOID CONTROL
38 T16 18RD SOLENOID SUPPLY VOLTAGE
H1 D52 18LG/WT CAN C BUS(+)
L2 D51 18DG/WT CAN C BUS(-)
TRANSMISSION SOLENOID (4.0L) - BLACK 8 WAY
CAV CIRCUIT FUNCTION
1 T15 18LG FUSED TRANSMISSION CONTROL RELAY OUTPUT
2 K6 18VT/BK 5 VOLT SUPPLY
3 K4 18BK/LB SENSOR GROUND
4 T25 18LG/RD GOVERNOR PRESSURE SENSOR SIGNAL
5 K88 18PK GOVERNOR PRESSURE SOLENOID CONTROL
6 T60 18BR 3-4 SHIFT SOLENOID CONTROL
7 T20 18LB TORQUE CONVERTER CLUTCH SOLENOID CONTROL
8 T54 18VT TRANSMISSION TEMPERATURE SENSOR SIGNAL
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 125

TRANSMISSION SOLENOID ASSEMBLY (DIESEL) - BLACK 13 WAY
CAV CIRCUIT FUNCTION
1 T14 18LG/WT N3 INPUT SPED SENSOR
2 T591 18YL/DB MODULATION PRESSURE SOLENOID CONTROL
3 T52 18RD/BK N2 INPUT SPEED SENSOR
4 T54 18VT TEMP SENSOR - P/N SWITCH
5- -
6 T16 18RD SOLENOID SUPPLY VOLTAGE
7 T39 18GY/LB SENSOR SUPPLY VOLTAGE
8 T119 18WT/DB 2-3 SOLENOID CONTROL
9 T159 18DG/WT 3-4 SOLENOID CONTROL
10 T118 18YL/DB SHIFT PRESSURE SOLENOID CONTROL
11 T120 18LG TCC SOLENOID CONTROL
12 T13 18DB/BK SENSOR GROUND
13 T60 18BR 1-2/4-5 SOLENOID CONTROL
TRANSMISSION SOLENOID/TRS ASSEMBLY (4.7L) - GRAY 23 WAY
CAV CIRCUIT FUNCTION
1 F22 18WT/PK FUSED IGNITION SWITCH OUTPUT (RUN)
2 T120 18LG LR SOLENOID CONTROL
3 T41 18BK/WT PARK/NEUTRAL POSITION SWITCH SENSE (T41)
4 T141 18WT TRS T41 SENSE
5 T42 18VT/WT TRS T42 SENSE
6 L1 18VT/BK BACK-UP LAMP FEED
7 T60 18BR OVERDRIVE SOLENOID CONTROL
8 T3 18VT TRS T3 SENSE
9 T1 18LG/BK TRS T1 SENSE
10 T16 14RD TRANSMISSION CONTROL RELAY OUTPUT
11 T48 18DB 4C PRESSURE SWITCH SENSE
12 T118 18YL/DB PRESSURE CONTROL SOLENOID CONTROL
13 T2 18TN/BK TRS T2 SENSE
14 T150 18BR/LB LR PRESSURE SWITCH SENSE
15 T147 18LB 2C PRESSURE SWITCH SENSE
16 T9 18OR/BK OVERDRIVE PRESSURE SWITCH SENSE
17 T59 18PK UNDERDRIVE SOLENOID CONTROL
18 T29 18GY UNDERDRIVE PRESSURE SWITCH SENSE
19 T159 18DG/WT 4C SOLENOID CONTROL
20 T119 18WT/DB 2C SOLENOID CONTROL
21 T140 18VT/LG MS SOLENOID CONTROL
22 T13 18DB/BK SPEED SENSOR GROUND
23 T54 18VT TRANSMISSION TEMPERATURE SENSOR SIGNAL
UNDERHOOD LAMP - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 Z141 20BK GROUND
2 M1 20PK/RD FUSED B(+)
8W - 80 - 126 8W-80 CONNECTOR PIN-OUTWJ

VEHICLE INFORMATION CENTER - BLACK 6 WAY
CAV CIRCUIT FUNCTION
1- -
2 D25 20YL/VT PCI BUS
3 F70 20PK FUSED B(+)
4 Z155 20BK/OR GROUND
5 G5 20DB/WT FUSED IGNITION SWITCH OUTPUT (RUN-START)
6- -
VISCOUS/CABIN HEATER (DIESEL) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 A82 16PK/LG VISCOUS/CABIN HEATER RELAY OUTPUT
2 Z18 16BK GROUND
WASHER FLUID LEVEL SWITCH - GRAY 2 WAY
CAV CIRCUIT FUNCTION
1 V11 20BK/TN WASHER FLUID SWITCH SENSE
2 Z141 20BK GROUND
WASTEGATE SOLENOID (DIESEL)-2WAY
CAV CIRCUIT FUNCTION
1 F15 18DB/WT FUSED AUTO SHUT DOWN RELAY OUTPUT
2 Y42 18OR/DB WASTEGATE SOLENOID CONTROL
WATER IN FUEL SENSOR (DIESEL) - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 K4 20BK/LB SENSOR GROUND
2 G123 20DG/WT WATER IN FUEL SENSOR SIGNAL
3 F15 20RD/DG FUSED AUTO SHUT DOWN RELAY OUTPUT
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 127

CONNECTOR NAME/
NUMBERCOLOR LOCATION FIG.
Passenger Power Seat Rear
Riser MotorRD At Passenger Seat N/S
Passenger Power Seat
Recliner Motor (Midline/
Premium)BK At Passenger Seat N/S
Passenger Power Seat Switch
(Midline/Premium)GN At Passenger Seat N/S
Passenger Rear Power
Window MotorBK In Right Rear Door 29
Passenger Rear Power
Window SwitchBL In Right Rear Door 29
Passenger Seat Belt Switch t Switch N/S
Power Amplifier - C1 WT Under Rear Seat 34, 36
Power Amplifier - C2 WT Under Rear Seat 34, 36
Power Connector WT Center of Instrument Panel 21, 22
Powertrain Control Module -
C1 (Gas)BK Rear of Engine Compartment 5, 10, 11, 14, 15, 18
Powertrain Control Module -
C2 (Gas)WT Rear of Engine Compartment 5, 10, 11, 14, 15, 18
Powertrain Control Module -
C3 (Gas)WT Rear of Engine Compartment N/S
Radiator Fan Motor BK At Radiator 5
Radiator Fan Relay BK Right Side of Engine Compartment 5
Radio - C1 GY Center of Instrument Panel 19, 20
Radio - C2 BK Center of Instrument Panel 19, 20
Rain Sensor BK Front Center Overhead N/S
Rear Power Outlet RD Right Rear Quarter Panel 37
Rear Washer Pump BK Left Front of Engine Compartment 3, 4
Rear Window Defogger BK Right Upper Coner of Liftgate 38
Rear Wiper Motor BK In Liftgate 38
Recirculation Door Motor/
Actuator (AZC)BK Center of Instrument Panel N/S
Red Brake Warning Indicator
SwitchGY At Master Cylinder 4
Remote Keyless Module
(Japan)BL In Driver Door 25
Right Courtesy Lamp BK At Lamp 20 21, 22
Right Curtain Airbag BK Near Right C Pillar 37
Right Door Handle Courtesy
LampBK At Lamp N/S
Right Fog Lamp BK At Right Front Fascia 5
Right Front Door Speaker WT In Right Front Door 25, 26
Right Front Impact Sensor BK Near Right Verticle Radiator Support N/S
Right Front Park Lamp WT At Lamp N/S
WJ8W-91 CONNECTOR/GROUND/SPLICE LOCATION 8W - 91 - 9
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

CONNECTOR NAME/
NUMBERCOLOR LOCATION FIG.
Trailer Tow Brake Lamp Relay BK Left Quarter Panel N/S
Trailer Tow Circuit Breaker BK Left Quarter Panel N/S
Trailer Tow Connector BK In Rear Bumper 39
Trailer Tow Left Turn Relay BK Left Quarter Panel N/S
Trailer Tow Right Turn Relay BK Left Quarter Panel N/S
Transfer Case Position Sensor BK On Transfer Case 7
Transmission Control Module
(4.7L)BK Rear of Engine Compartment 14, 15, 18
Transmission Control Module
C1 (Diesel)BK Right Rear Side of Engine
CompartmentN/S
Transmission Control Module
C2 (Diesel)BK Right Rear Side of Engine
Compartment8
Transmission Solenoid (4.0L
Gas)BK Left Side of Transmission 12
Transmission Solenoid
Assembly (Diesel)BK On Transmission 8
Transmission Solenoid/TRS
Assembly (4.7L)GY Left Side of Transmission 16
Underhood Lamp BK At Lamp 6
Vehicle Information Center BK In Overhead Console N/S
Viscous/Cabin Heater (Diesel) BK Left Rear of Engine Compartment N/S
Washer Fluid Level Switch GY Left Front of Engine Compartment 3, 4
Wastegate Solenoid (Diesel) Near Power Distribution Center N/S
Water In Fuel Sensor (Diesel) BK Left Rear of Engine Compartment N/S
GROUNDS
GROUND NUMBER LOCATION FIG.
G100 (4.0L and Diesel) Near Starter N/S
G100 (4.7L) Near Intake Plenum N/S
G101 Near Battery 2
G102 Right Side of Engine 14, 15
G103 Right Side of Engine 7, 8, 10, 11, 14, 15
G104 (4.0L) Right Rear of Engine 10, 11
G104 (4.7L) Left Side of Engine 13
G105 Right Side of Engine 8
G106 Left Side of Engine Compartment 3, 4
G107 Left Side of Engine Compartment 3, 4
G108 Near Power Distribution Center 5
G200 Near Airbag Control Module 19, 20, 21, 22
G201 Near Airbag Control Module 19, 20, 21, 22
G300 Near Right Front Seat 34, 36
G301 Near Left Front Seat 33, 35
WJ8W-91 CONNECTOR/GROUND/SPLICE LOCATION 8W - 91 - 11
CONNECTOR/GROUND/SPLICE LOCATION (Continued)