2002 JEEP LIBERTY Workshop Manual

POWERTRAIN CONTROL MODULE-C1 (3.7L) - BLACK 32 WAY
CAV CIRCUIT FUNCTION
1 K93 14TN/OR COIL ON PLUG DRIVER NO. 3
2 F1 18DB FUSED IGNITION SWITCH OUTPUT (RUN-START)
3 K94 14TN/LG COIL ON PLUG DRIVER NO. 4
4 K4 18BK/LB SENSOR GROUND
5 K96 14TN/LB COIL ON PLUG DRIVER NO. 6
6 T41 18BK/WT (A/T) PARK/NEUTRAL POSITION SWITCH SENSE
7 K91 14TN/RD COIL ON PLUG DRIVER NO.1
8 K24 18GY/BK CRANKSHAFT POSITION SENSOR SIGNAL
9- -
10 K60 18YL/BK IDLE AIR CONTROL NO. 2 DRIVER
11 K40 18BR/WT IDLE AIR CONTROL NO. 1 DRIVER
12 K10 18DB/OR POWER STEERING PRESSURE SWITCH SENSE
13 T141 18 YL/RD (M/T) FUSED IGNITION SWITCH OUTPUT (START)
13 F45 18YL/BR (A/T) FUSED IGNITION SWITCH OUTPUT (START)
14 K77 18BR/WT 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/RD IDLE AIR CONTROL NO. 3 DRIVER
20 K59 18VT/BK IDLE AIR CONTROL NO. 4 DRIVER
21 K95 14TN/DG COIL ON PLUG DRIVER NO. 5
22 A14 16RD/WT FUSED B(+)
23 K22 18OR/DB 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 OXYGEN SENSOR 2/1 SIGNAL
27 K1 18DG/RD MANIFOLD ABOLUTE PRESSURE SENSOR SIGNAL
28 - -
29 K341 18TN/WT OXYGEN SENSOR 2/2 SIGNAL
30 - -
31 Z107 14BK/DB GROUND
32 Z107 14BK/DB GROUND
POWERTRAIN CONTROL MODULE-C2 (GAS) - WHITE 32 WAY
CAV CIRCUIT FUNCTION
1- -
2- -
3- -
4 K11 18WT/DB FUEL INJECTOR NO. 1 DRIVER
5 K13 18YL/WT FUEL INJECTOR NO. 3 DRIVER
6 K38 18GY (3.7L) FUEL INJECTOR NO. 5 DRIVER
7- -
8- -
9 K92 14TN/PK (3.7L) COIL ON PLUG DRIVER NO. 2
9 K17 18DB/TN (2.4L) IGNITION COIL NO. 2 DRIVER
10 K20 18DG GENERATOR FIELD
11 - -
12 K58 18BR/DB (3.7L) FUEL INJECTOR NO. 6 DRIVER
8Wa - 80 - 82 8W-80 CONNECTOR PIN-OUTSKJ

POWERTRAIN CONTROL MODULE-C2 (GAS) - WHITE 32 WAY
CAV CIRCUIT FUNCTION
13 - -
14 - -
15 K12 18TN FUEL INJECTOR NO. 2 DRIVER
16 K14 18LB/BR FUEL INJECTOR NO. 4 DRIVER
17 K173 18LG RADIATOR FAN RELAY CONTROL
18 - -
19 C18 18DB A/C PRESSURE SIGNAL
20 - -
21 - -
22 - -
23 G60 18GY/YL ENGINE OIL PRESSURE SENSOR SIGNAL
24 - -
25 - -
26 - -
27 - -
28 - -
29 - -
30 - -
31 K6 18VT/WT 5 VOLT SUPPLY
32 - -
POWERTRAIN CONTROL MODULE-C3 (GAS) - LT. GRAY 32 WAY
CAV CIRCUIT FUNCTION
1 C13 18DG 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 K90 18TN (M/T) CLUTCH INTERLOCK RELAY CONTROL
7 K42 18DB/LB (3.7L) KNOCK SENSOR NO. 1 SIGNAL
7 K42 18DB/LB (2.4L) NOT USED
8 K99 18BR/OR OXYGEN SENSOR 1/1 HEATER CONTROL
9 K512 18RD/YL OXYGEN SENSOR DOWNSTEAM RELAY CONTROL
10 K106 18WT/DG LEAK DETECTION PUMP SOLENOID CONTROL
11 V32 18YL/RD SPEED CONTROL SUPPLY
12 F142 18OR/DG FUSED AUTO SHUT DOWN RELAY SENSE INPUT
13 T10 18YL/DG TORQUE MANAGEMENT REQUEST SENSE
14 K107 18OR LEAK DETECTION PUMP SWITCH SENSE
15 K118 18PK/YL BATTERY TEMPERATURE SENSOR SIGNAL
16 K299 18BR/WT (2.4L) OXYGEN SENSOR 1/2 HEATER CONTROL
16 K299 18BR/WT (3.7L) OXYGEN SENSOR 2/1 HEATER CONTROL
17 B22 18DG/YL VEHICLE SPEED OUTPUT
18 K142 18GY/BK (2.4L) NOT USED
18 K142 18GY/BK (3.7L) KNOCK SENSOR NO. 2 SIGNAL
19 K31 18BR FUEL PUMP RELAY CONTROL
20 K52 18PK/BK EVAP PURGE/SOLENOID CONTROL
21 - -
22 C21 18DB/OR A/C SWITCH SENSE
23 - -
24 K29 18WT/PK BRAKE LAMP SWITCH SENSE
25 K125 18WT/DB GENERATOR SOURCE
KJ8W-80 CONNECTOR PIN-OUTS8Wa-80-83

POWERTRAIN CONTROL MODULE-C3 (GAS) - LT. GRAY 32 WAY
CAV CIRCUIT FUNCTION
26 K226 18DB/WT FUEL LEVEL SENSOR SIGNAL
27 D21 18PK SCI TRANSMIT
28 - -
29 D32 18LG SCI RECEIVE (PCM)
30 D25 18YL/VT PCI BUS
31 - -
32 V37 18RD/LG SPEED CONTROL SWITCH SIGNAL
RADIATOR FAN MOTOR - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 C25 12YL RADIATOR FAN RELAY OUTPUT
2 Z212 12BK/OR GROUND
RADIATOR FAN RELAY - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1 C24 12DB/PK FUSED B(+)
2 C25 12YL RADIATOR FAN RELAY OUTPUT
3 Z212 18BK/OR GROUND
4 K173 18LG RADIATOR FAN RELAY CONTROL
RADIO C1 - GRAY 22 WAY
CAV CIRCUIT FUNCTION
1 M1 20PK FUSED B(+)
2 F89 18OR/RD FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
3 E2 20OR FUSED PANEL LAMPS DIMMER SWITCH SIGNAL
4- -
5- -
6- -
7 X54 18VT RIGHT FRONT DOOR SPEAKER (+)
8 X56 18DB/RD RIGHT FRONT DOOR SPEAKER (-)
9 X55 18BR/RD LEFT FRONT DOOR SPEAKER (-)
10 X53 18DG LEFT FRONT DOOR SPEAKER (+)
11 Z9 16BK GROUND
12 M1 20PK FUSED B(+)
13 X16 18LG (PREMIUM) ANTENNA RELAY OUTPUT
14 D25 18YL/VT PCI BUS
15 - -
16 - -
17 - -
18 X51 18BR/YL LEFT REAR SPEAKER (+)
19 X57 18BR/LB LEFT REAR SPEAKER (-)
20 X58 18DB/OR RIGHT REAR SPEAKER (-)
21 X52 18DB/WT RIGHT REAR SPEAKER (+)
22 Z9 16BK GROUND
8Wa - 80 - 84 8W-80 CONNECTOR PIN-OUTSKJ

RADIO C2 - 10 WAY
CAV CIRCUIT FUNCTION
1 X40 20WT/RD AUDIO OUT RIGHT
2 Z30 20WT/BK GROUND
3 Z9 20BK/DB GROUND
4 D25 20YL/VT PCI BUS
5 X112 20RD IGNITION SWITCH OUTPUT
6 X41 20WT/DG AUDIO OUT LEFT
7 Z17 20BK GROUND
8- -
9- -
10 X160 20YL B(+)
RADIO C3-2WAY
CAV CIRCUIT FUNCTION
1 X30 BK RADIO ANTENNA CORE
2 X31 BK RADIO ANTENNA SHIELD
RADIO CHOKE (PREMIUM) - GRAY 4 WAY
CAV CIRCUIT FUNCTION
1 F60 16DG/RD FUSED B(+)
2 X13 16BK/RD RADIO CHOKE OUTPUT
3 X16 18LG ANTENNA RELAY OUTPUT
4 Z140 16BK/LG GROUND
REAR POWER OUTLET - RED 3 WAY
CAV CIRCUIT FUNCTION
1 F41 16PK/VT FUSED B(+)
2- -
3 Z151 16BK/WT GROUND
KJ8W-80 CONNECTOR PIN-OUTS8Wa-80-85

REAR POWER WINDOW SWITCH (MIDLINE/HIGHLINE) - WHITE 10 WAY
CAV CIRCUIT FUNCTION
1 Q28 14DG/WT RIGHT REAR WINDOW DRIVER DOWN
2 Q14 14GY RIGHT REAR WINDOW DRIVER UP
3 Q24 14DG RIGHT REAR WINDOW DRIVER DOWN
4 Q18 14GY/BK RIGHT REAR WINDOW DRIVER UP
5 Q1 16YL POWER WINDOW SWITCH FEED
6 Q1 16YL POWER WINDOW SWITCH FEED
7 Q17 14DB/WT LEFT REAR WINDOW DRIVER UP
8 Q23 14RD/WT LEFT REAR WINDOW DRIVER DOWN
9 Q27 14RD/BK LEFT REAR WINDOW DRIVER DOWN
10 Q13 14DB LEFT REAR WINDOW DRIVER UP
REAR WHEEL SPEED SENSOR - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 B2 18YL REAR WHEEL SPEED SENSOR 12 VOLT SUPPLY
2 B1 18YL/DB REAR WHEEL SPEED SENSOR SIGNAL
REAR WIPER MOTOR - BLACK 6 WAY
CAV CIRCUIT FUNCTION
1 Z235 18BK GROUND
2 V21 20DB/RD REAR WIPER ON DRIVER
3 G80 20YL/WT FLIP-UP GLASS AJAR SWITCH SENSE
4 V22 20BR/YL REAR WIPER INTERMITTENT DRIVER
5 F70 18PK/BK FUSED B(+)
6- -
RED BRAKE WARNING INDICATOR SWITCH - GRAY 2 WAY
CAV CIRCUIT FUNCTION
1 G11 18WT/BK RED BRAKE WARNING INDICATOR DRIVER
2 Z142 18BK/WT GROUND
REMOTE KEYLESS ENTRY MODULE (EXCEPT BASE)-6WAY
CAV CIRCUIT FUNCTION
1 Y60 RKE DATA
2 Y62 RKE SUPPLY
3 Y61 RKE PROGRAM
4 Y63 RKE GROUND
5 Y64 RKE ANTENNA (+)
6 Y65 RKE ANTENNA (-)
8Wa - 80 - 86 8W-80 CONNECTOR PIN-OUTSKJ

RIGHT COURTESY LAMP - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 M1 20PK FUSED B(+)
2 M2 20YL COURTESY LAMP DRIVER
RIGHT CURTAIN AIRBAG - YELLOW 2 WAY
CAV CIRCUIT FUNCTION
1 R76 18YL/DB RIGHT CURTAIN SQUIB LINE 2
2 R74 18YL/BR RIGHT CURTAIN SQUIB LINE 1
RIGHT CYLINDER LOCK SWITCH (EXCEPT BASE) - LT. GRAY 2 WAY
CAV CIRCUIT FUNCTION
1 P37 18LG DOOR LOCK SWITCH GROUND
2 G72 18DG/OR (LHD) RIGHT CYLINDER LOCK SWITCH MUX
2 G73 18LG/OR (RHD) RIGHT CYLINDER LOCK SWITCH MUX
RIGHT DOOR LOCK SWITCH (EXCEPT BASE) - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1 P36 20PK/VT DOOR LOCK SWITCH MUX
2 Z351 18BK/LG GROUND
3 F89 20OR/RD FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
4 P37 20LG DOOR LOCK SWITCH GROUND
RIGHT FOG LAMP - BLACK 2 WAY
CAV CIRCUIT FUNCTION
A Z142 18BK/WT GROUND
B L39 18LB FOG LAMP RELAY OUTPUT
KJ8W-80 CONNECTOR PIN-OUTS8Wa-80-87

RIGHT FRONT DOOR AJAR SWITCH (BASE) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 G74 20TN/WT PASSENGER DOOR AJAR SWITCH SENSE
2 Z351 20BK/LG GROUND
RIGHT FRONT DOOR LOCK MOTOR/AJAR SWITCH (EXCEPT BASE) - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1 G75 20TN (RHD) DRIVER DOOR AJAR SWITCH SENSE
1 G74 20TN/WT (LHD) PASSENGER DOOR AJAR SWITCH SENSE
2 Z351 20BK/LG GROUND
3 P34 18PK/BK (RHD) DRIVER DOOR UNLOCK RELAY OUTPUT
3 P35 18OR/VT (LHD) PASSENGER DOOR UNLOCK RELAY OUTPUT
4 P33 18OR/BK DOOR LOCK RELAY OUTPUT
RIGHT FRONT DOOR SPEAKER (BASE)-2WAY
CAV CIRCUIT FUNCTION
1 X54 18VT RIGHT FRONT SPEAKER (+)
2 X56 18DB/RD RIGHT FRONT SPEAKER (-)
RIGHT FRONT DOOR SPEAKER (PREMIUM) - BLACK 10 WAY
CAV CIRCUIT FUNCTION
1 X54 18VT RIGHT FRONT SPEAKER (+)
2 X56 18DB/RD RIGHT FRONT SPEAKER (-)
3 Z9 16BK GROUND
4 X86 18OR/RD AMPLIFIED HIGH RIGHT FRONT SPEAKER (-)
5 X92 18TN/BK AMPLIFIED LOW RIGHT REAR SPEAKER (-)
6 X58 18DB/OR RIGHT REAR DOOR SPEAKER (-)
7 X52 18DB/WT RIGHT REAR DOOR SPEAKER (+)
8 X13 16BK/RD RADIO CHOKE OUTPUT
9 X84 18TN/BK AMPLIFIED HIGH RIGHT FRONT SPEAKER (+)
10 X94 18TN/VT AMPLIFIED LOW RIGHT REAR SPEAKER (+)
RIGHT FRONT IMPACT SENSOR - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1- -
2- -
3 R46 18BR/LB RIGHT FRONT IMPACT SENSOR GROUND
4 R48 18TN RIGHT FRONT IMPACT SENSOR SIGNAL
8Wa - 80 - 88 8W-80 CONNECTOR PIN-OUTSKJ

RIGHT FRONT PARK/ TURN SIGNAL LAMP - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 L62 18BR/RD RIGHT TURN SIGNAL
2 L78 18DG/YL (EXCEPT BUILT-UP-EX-
PORT)FUSED PARK LAMP RELAY OUTPUT
3 Z142 18BK/WT GROUND
RIGHT FRONT POWER WINDOW MOTOR (MIDLINE/HIGHLINE) - LT. GRAY 2 WAY
CAV CIRCUIT FUNCTION
1 Q22 16VT/WT RIGHT FRONT WINDOW DRIVER DOWN
2 Q12 16BR RIGHT FRONT WINDOW DRIVER UP
RIGHT FRONT WHEEL SPEED SENSOR (ABS) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 B7 18WT RIGHT FRONT WHEEL SPEED SENSOR 12 VOLT
SUPPLY
2 B6 18WT/DB RIGHT FRONT WHEEL SPEED SENSOR SIGNAL
RIGHT HEADLAMP (BUILT-UP-EXPORT)-3WAY
CAV CIRCUIT FUNCTION
1 L34 18RD/OR FUSED RIGHT HIGH BEAM OUTPUT
2 L44 18VT/RD FUSED RIGHT LOW BEAM OUTPUT
3 Z142 18BK/WT GROUND
RIGHT HEADLAMP (EXCEPT BUILT-UP-EXPORT) - BLUE 3 WAY
CAV CIRCUIT FUNCTION
A L44 18VT/RD FUSED RIGHT LOW BEAM OUTPUT
B Z142 18BK/WT GROUND
C L34 18RD/OR FUSED RIGHT HIGH BEAM OUTPUT
KJ8W-80 CONNECTOR PIN-OUTS8Wa-80-89