heater JEEP GRAND CHEROKEE 2002 WJ / 2.G Repair Manual

DRIVER DOOR MODULE C3 - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1 BK MEMORY SWITCH RETURN
2 BR MEMORY SWITCH MUX
3 OR MEMORY SET INDICATOR DRIVER
4 GY SWITCH ILLUMINATION DRIVER
DRIVER FRONT DOOR COURTESY LAMP - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 M21 20PK/DG COURTESY LAMP DRIVER
2 L121 20BK/RD COURTESY LAMP GROUND
DRIVER FRONT POWER WINDOW MOTOR - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 Q21 16WT DRIVER WINDOW DRIVER (DOWN)
2 Q11 16LB DRIVER WINDOW DRIVER (UP)
DRIVER HEATED SEAT BACK (PREMIUM I/III)-3WAY
CAV CIRCUIT FUNCTION
1 P88 16BK/BR HEATED SEAT DRIVER
2 Z6 16BK/YL GROUND
3- -
DRIVER HEATED SEAT CUSHION (PREMIUM I/III)-4WAY
CAV CIRCUIT FUNCTION
1 P131 16BK/OR DRIVER SEAT HEATER B(+) DRIVER
2 P88 16BK/BR HEATED SEAT DRIVER
3 P135 20LB/BK DRIVER SEAT TEMPERATURE SENSOR INPUT
4 P29 20BR/WT SEAT SENSOR 5 VOLT SUPPLY
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 69

DRIVER HEATED SEAT SWITCH - WHITE 6 WAY
CAV CIRCUIT FUNCTION
1 P133 20TN/DG DRIVER SEAT HEATER SWITCH MUX
2 E2 20OR PANEL LAMPS DRIVER
3 F22 20WT/PK FUSED IGNITION SWITCH OUTPUT (RUN)
4- -
5 Z300 20BK GROUND
6 P132 20OR/BK SEAT HEATER SWITCH SENSOR GROUND
DRIVER LUMBAR MOTOR (MIDLINE/PREMIUM) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 P105 16LG/DB LUMBAR FORWARD SWITCH SENSE
2 P104 16YL/RD LUMBAR REARWARD SWITCH SENSE
DRIVER LUMBAR SWITCH (MIDLINE/PREMIUM) - WHITE 6 WAY
CAV CIRCUIT FUNCTION
1- -
2 Z238 16BK (RHD) GROUND
2 Z243 16BK (LHD) GROUND
3 P105 16LG/DB (RHD) LUMBAR FORWARD SWITCH SENSE
3 P104 16YL/RD (LHD) LUMBAR REAR WARD SWITCH SENSE
4 P104 16YL/RD (RHD) LUMBAR REAR WARD SWITCH SENSE
4 P105 16LG/DB (LHD) LUMBAR FORWARD SWITCH SENSE
5 Z238 16BK (RHD) GROUND
5 Z243 16BK (LHD) GROUND
6 F35 16RD FUSED B(+)
DRIVER POWER MIRROR - BLACK 12 WAY
CAV CIRCUIT FUNCTION
1 C117 20BK MIRROR HEATER 12 VOLT SUPPLY
2 P65 20DG MIRROR HORIZONTAL POSITION SIGNAL
3 P69 20GY MIRROR SENSOR GROUND
4 P64 20VT MIRROR VERTICAL POSITION SIGNAL
5 C118 20BK/WT MIRROR HEATER GROUND
6 P95 20OR MIRROR HORIZONTAL DRIVER
7 P114 20YL/RD AUTO DAY/NIGHT MIRROR(-)
8 P99 20DB (BUILT-UP-EXPORT) FOLDING MIRROR FEED
9 P110 20YL (BUILT-UP-EXPORT) FOLDING MIRROR RETURN
10 P112 20YL/WT AUTO DAY/NIGHT MIRROR(+)
11 P93 20RD MIRROR VERTICAL DRIVER
12 P91 20WT MIRROR COMMON DRIVER
8W - 80 - 70 8W-80 CONNECTOR PIN-OUTWJ

ENGINE CONTROL MODULE C1 (DIESEL) - BLACK 81 WAY
CAV CIRCUIT FUNCTION
55 B22 20DG/YL VEHICLE SPEED SENSOR SIGNAL
56 K225 18BK ACCELERATOR PEDAL POSITION SENSOR 2 GROUND
57 - -
58 K4 20BK/LB WATER IN FUEL SENSOR GROUND
59 K900 18GY INTAKE PORT SWIRL ACTUATOR SIGNAL
60 K7 20RD/WT FUEL PRESSURE SENSOR 5 VOLT SUPPLY
61 K51 20DB/YL AUTO SHUT DOWN RELAY CONTROL
62 - -
63 - -
64 - -
65 - -
66 - -
67 K173 20GY HYDRAULIC RADIATOR FAN SOLENOID CONTROL
68 - -
69 C13 20DB/RD A/C COMPRESSOR CLUTCH RELAY CONTROL
70 - -
71 - -
72 K236 20GY/PK GLOW PLUG RELAY NO. 2 CONTROL
73 - -
74 T752 20DG/RD ENGINE STARTER MOTOR RELAY CONTROL
75 K132 20BR/BK VISCOUS/CABIN HEATER RELAY CONTROL
76 Y42 20BR/BK WASTEGATE SOLENOID CONTROL
77 K152 20WT GLOW PLUG RELAY NO. 1 CONTROL
78 - -
79 - -
80 K46 20DB/BK FUEL PRESSURE SOLENOID CONTROL
81 K46 20DB/BK FUEL PRESSURE SOLENOID CONTROL
ENGINE CONTROL MODULE C2 (DIESEL) - BLACK 40 WAY
CAV CIRCUIT FUNCTION
82 D21 20PK SCI TRANSMIT
83 - -
84 - -
85 - -
86 - -
87 - -
88 - -
89 K35 20GY/YL EGR SOLENOID CONTROL
90 - -
91 - -
92 - -
93 - -
94 G123 20DG/WT WATER IN FUEL SENSOR SIGNAL
95 - -
96 - -
97 - -
98 - -
99 - -
100 - -
101 - -
102 - -
103 - -
104 - -
8W - 80 - 76 8W-80 CONNECTOR PIN-OUTWJ

OUTPUT SPEED SENSOR (4.7L) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 T14 18LG/WT OUTPUT SPEED SENSOR SIGNAL
2 T13 18DB/BK SPEED SENSOR GROUND
OVERHEAD MAP/COURTESY LAMP - WHITE 3 WAY
CAV CIRCUIT FUNCTION
1 F70 20PK FUSED B(+)
2 M20 20YL/BK COURTESY LAMP LOAD SHED
3 M2 20YL/DG COURTESY LAMP DRIVER
OXYGEN SENSOR 1/1 UPSTREAM-4WAY
CAV CIRCUIT FUNCTION
1 F142 18OR/DG FUSED AUTO SHUT DOWN RELAY OUTPUT
2 K99 18BR/OR OXYGEN SENSOR 1/1 HEATER CONTROL
3 K4 18BK/LB SENSOR GROUND
4 K41 18BK/DG OXYGEN SENSOR 1/1 SIGNAL
OXYGEN SENSOR 1/2 DOWNSTREAM-4WAY
CAV CIRCUIT FUNCTION
1 F142 18OR/DG (4.0L
BUILT-UP-EXPORT)FUSED AUTO SHUT DOWN RELAY OUTPUT
1 K200 18VT/OR (EXCEPT 4.0L
BUILT-UP-EXPORT)OXYGEN SENSOR DOWNSTREAM RELAY OUTPUT
2 K299 18BR/WT (4.0L
BUILT-UP-EXPORT)OXYGEN SENSOR 1/2 HEATER CONTROL
2 Z186 18BK (EXCEPT 4.0L
BUILT-UP-EXPORT)GROUND
3 K4 18BK/LB SENSOR GROUND
4 K141 18TN/WT OXYGEN SENSOR 1/2 SIGNAL
OXYGEN SENSOR 2/1 UPSTREAM-4WAY
CAV CIRCUIT FUNCTION
1 F142 18OR/DG FUSED AUTO SHUT DOWN RELAY OUTPUT
2 K299 18BR/WT OXYGEN SENSOR 2/1 HEATER CONTROL
3 K4 18BK/LB SENSOR GROUND
4 K241 18LG/RD OXYGEN SENSOR 2/1 SIGNAL
8W - 80 - 100 8W-80 CONNECTOR PIN-OUTWJ

PASSENGER DOOR MODULE C2 - BLACK 12 WAY
CAV CIRCUIT FUNCTION
1 P95 20OR MIRROR HORIZONTAL DRIVER
2 C118 20BK/WT MIRROR HEATER GROUND
3 P64 20VT MIRROR VERTICAL POSITION SIGNAL
4 P69 20GY MIRROR SENSOR GROUND
5 P65 20DG MIRROR HORIZONTAL POSITION SIGNAL
6 C117 20BK MIRROR HEATER 12 VOLT SUPPLY
7 P91 20WT MIRROR COMMON DRIVER
8 P93 20RD MIRROR VERTICAL DRIVER
9 M21 20PK/DG COURTESY LAMP DRIVER
10 P110 20YL (BUILT-UP-EXPORT) FOLDING MIRROR RETURN
11 P99 20DB (BUILT-UP-EXPORT) FOLDING MIRROR FEED
12 L121 20BK/RD COURTESY LAMP GROUND
PASSENGER FRONT DOOR COURTESY LAMP - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 M21 20PK/DG COURTESY LAMP DRIVER
2 L121 20BK/RD COURTESY LAMP GROUND
PASSENGER FRONT POWER WINDOW MOTOR - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 Q22 16VT PASSENGER WINDOW DRIVER (DOWN)
2 Q12 16BR PASSENGER WINDOW DRIVER (UP)
PASSENGER HEATED SEAT BACK (PREMIUM I/III)-3WAY
CAV CIRCUIT FUNCTION
1 P88 16BK/BR HEATED SEAT DRIVER
2 Z5 16BK/VT GROUND
3- -
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 103

PASSENGER HEATED SEAT CUSHION (PREMIUM I/III)-4WAY
CAV CIRCUIT FUNCTION
1 P130 16DG/WT PASSENGER SEAT HEATER B(+) DRIVER
2 P88 16BK/BR HEATED SEAT DRIVER
3 P86 20DG/YL PASSENGER SEAT TEMPERATURE SENSOR INPUT
4 P29 20BR/WT SEAT SENSOR 5 VOLT SUPPLY
PASSENGER HEATED SEAT SWITCH - BLACK 6 WAY
CAV CIRCUIT FUNCTION
1 P134 20TN/LG PASSENGER SEAT HEATER SWITCH MUX
2 E2 20OR PANEL LAMPS DRIVER
3 F22 20WT/PK FUSED IGNITION SWITCH OUTPUT (RUN)
4- -
5 Z300 20BK GROUND
6 P132 20OR/BK SEAT HEATER SWITCH SENSOR GROUND
PASSENGER LUMBAR MOTOR (MIDLINE/PREMIUM) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 P105 16LG/DG LUMBAR FORWARD SWITCH SENSE
2 P104 16YL/RD LUMBAR REARWARD SWITCH SENSE
PASSENGER LUMBAR SWITCH (MIDLINE/PREMIUM) - WHITE 6 WAY
CAV CIRCUIT FUNCTION
1- -
2 Z1 16BK GROUND
3 P104 16YL/RD (RHD) LUMBAR REARWARD SWITCH SENSE
3 P105 16LG/DB (LHD) LUMBAR FORWARD SWITCH SENSE
4 P105 16LG/DB (RHD) LUMBAR FORWARD SWITCH SENSE
4 P104 16YL/RD (LHD) LUMBAR REARWARD SWITCH SENSE
5 Z1 16BK GROUND
6 F37 16RD/LB FUSED B(+)
8W - 80 - 104 8W-80 CONNECTOR PIN-OUTWJ

PASSENGER POWER MIRROR - BLACK 12 WAY
CAV CIRCUIT FUNCTION
1 C117 20BK MIRROR HEATER 12 VOLT SUPPLY
2 P65 20DG MIRROR HORIZONTAL POSITION SIGNAL
3 P69 2GY MIRROR SENSOR GROUND
4 P64 20VT MIRROR VERTICAL POSITION SIGNAL
5 C118 20BK/WT MIRROR HEATER GROUND
6 P95 20OR MIRROR HORIZONTAL DRIVER
7- -
8 P99 20DB (BUILT-UP-EXPORT) FOLDING MIRROR FEED
9 P110 20YL (BUILT-UP-EXPORT) FOLDING MIRROR RETURN
10 - -
11 P93 20RD MIRROR VERTICAL DRIVER
12 P91 20WT MIRROR COMMON DRIVER
PASSENGER POWER SEAT FRONT RISER MOTOR - RED 2 WAY
CAV CIRCUIT FUNCTION
1 P18 16YL/LG PASSENGER SEAT FRONT UP DRIVER
2 P20 16RD/LG PASSENGER SEAT FRONT DOWN DRIVER
PASSENGER POWER SEAT HORIZONTAL MOTOR - RED 2 WAY
CAV CIRCUIT FUNCTION
1 P16 16RD/YL PASSENGER SEAT HORIZONTAL REARWARD DRIVER
2 P14 16YL/LB PASSENGER SEAT HORIZONTAL FORWARD DRIVER
PASSENGER POWER SEAT REAR RISER MOTOR - RED 2 WAY
CAV CIRCUIT FUNCTION
1 P10 16YL/WT PASSENGER SEAT REAR UP DRIVER
2 P12 16RD/WT PASSENGER SEAT REAR DOWN DRIVER
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 105

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

SEAT MODULE C2 (PREMIUM) - ORANGE 20 WAY
CAV CIRCUIT FUNCTION
1 F35 16RD FUSED B(+)
2 P131 16BK/OR (PREMIUM I/III) DRIVER SEAT HEATER B(+) DRIVER
3 Z1 16BK GROUND
4 P119 16YL/RD (PREMIUM II/III) SEAT FRONT UP DRIVER
5 P121 16RD/GY (PREMIUM II/III) SEAT FRONT DOWN DRIVER
6 P111 16YL/DB (PREMIUM II/III) SEAT REAR UP DRIVER
7 P113 16RD/BK (PREMIUM II/III) SEAT REAR DOWN DRIVER
8- -
9 P115 16GY/LG (PREMIUM II/III) SEAT HORIZONTAL FORWARD DRIVER
10 F35 16RD FUSED B(+)
11 P130 16DG/WT (PREMIUM I/III) PASSENGER SEAT HEATER B(+) DRIVER
12 Z1 16BK GROUND
13 - -
14 P9 20RD/LB (PREMIUM II/III) SEAT SWITCH B(+) SUPPLY
15 Z6 16BK/YL (PREMIUM I/III) GROUND
16 Z5 16BK/VT (PREMIUM I/III) GROUND
17 - -
18 P141 16GY/WT (PREMIUM II/III) SEAT RECLINER DOWN DRIVER
19 P143 16GY/LB (PREMIUM II/III) SEAT RECLINER UP DRIVER
20 P117 16RD/BR (PREMIUM II/III) SEAT HORIZONTAL REARWARD DRIVER
SENTRY KEY IMMOBILIZER MODULE - BLACK 6 WAY
CAV CIRCUIT FUNCTION
1 M1 20PK FUSED B(+)
2 Z132 20BK/OR GROUND
3 G5 20DB/WT FUSED IGNITION SWITCH OUTPUT (RUN-START)
4- -
5 D25 20YL/VT/BK PCI BUS
6- -
SHIFTER ASSEMBLY (C201 DIESEL) - WHITE 12 WAY
CAV CIRCUIT FUNCTION
1- -
2- -
3- -
4 K2 20WT/PK SECONDARY BRAKE SWITCH SIGNAL
5 D25 20RD PCI BUS
6- -
7 D21 20PK SCI TRANSMIT
8 F12 20DB/WT FUSED IGNITION SWITCH OUTPUT (RUN-START)
9 T2 20TN/BK BACK-UP LAMP RELAY CONTROL
10 Z234 20WT GROUND
11 T41 20BK/WT PARK/NEUTRAL POSITION SWITCH SENSE (T41)
12 F991 20OR/DB FUSED IGNITION SWITCH OUTPUT (RUN-START)
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 119

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