2002 JEEP LIBERTY Transmission control module

Component Page
Sunroof Switch.................... 8Wa-80-95
Tailgate Cylinder Lock Switch......... 8Wa-80-95
Tailgate Flip-Up Ajar Switch.......... 8Wa-80-95
Tailgate Lock Motor/Ajar Switch....... 8Wa-80-95
Throttle Position Sensor............. 8Wa-80-96
Trailer Tow Brake Lamp Relay........ 8Wa-80-96
Trailer Tow Circuit Breaker.......... 8Wa-80-96
Trailer Tow Connector............... 8Wa-80-96
Trailer Tow Left Turn Relay.......... 8Wa-80-97Component Page
Trailer Tow Relay.................. 8Wa-80-97
Trailer Tow Right Turn Relay......... 8Wa-80-97
Transfer Case Position Sensor......... 8Wa-80-97
Transmission Control Module (3.7L).... 8Wa-80-98
Transmission Solenoid/TRS Assembly
(3.7L).......................... 8Wa-80-99
Washer Fluid Level Switch........... 8Wa-80-99
Washer Pump.................... 8Wa-80-100
Water In Fuel Sensor (Diesel)........ 8Wa-80-100
8Wa - 80 - 4 8W-80 CONNECTOR PIN-OUTSKJ

TRANSMISSION CONTROL MODULE (3.7L) - BLACK 60 WAY
CAV CIRCUIT FUNCTION
1 T1 18LG/BK TRS T1 SENSE
2 T4 18PK/OR 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/BR FUSED IGNITION SWITCH OUTPUT (START)
9 T9 18OR/BK OVERDRIVE PRESSURE SWITCH SENSE
10 T10 18YL/DG TORQUE MANAGEMENT REQUEST SENSE
11 F1 18DB FUSED IGNITION SWITCH OUTPUT (RUN-START)
12 K22 18OR/DB THROTTLE POSITION SENSOR SIGNAL
13 T13 18DB/BK SPEED SENSOR GROUND
14 T14 18LG/WT OUTPUT SPEED SENSOR SIGNAL
15 K30 18PK TRANSMISSION CONTROL RELAY CONTROL
16 T16 14RD TRANSMISSION CONTROL RELAY OUTPUT
17 T16 14RD TRANSMISSION CONTROL RELAY OUTPUT
18 T591 18YL/DB PRESSURE CONTROL SOLENOID CONTROL
19 T119 18WT/DB 2C SOLENOID CONTROL
20 T20 18LB LOW/REVERSE SOLENOID CONTROL
21 - -
22 - -
23 - -
24 - -
25 - -
26 - -
27 - -
28 - -
29 T29 18GY UNDERDRIVE PRESSURE SWITCH SENSE
30 T38 18VT/TN LINE PRESSURE SENSOR SIGNAL
31 - -
32 - -
33 - -
34 - -
35 - -
36 T16 14RD TRANSMISSION CONTROL RELAY OUTPUT
37 Z113 14BK/YL GROUND
38 T39 18GY/LB 5 VOLT SUPPLY
39 Z113 14BK/YL GROUND
40 T140 18VT/LG MS SOLENOID CONTROL
41 T411 18WT/PK TRS T41 SENSE
42 T42 18VT/WT TRS T42 SENSE
43 D25 18VT/YL 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 18OR/WT OVERDRIVE OFF SWITCH SENSE
50 T50 18DG LOW/REVERSE PRESSURE SWITCH SENSE
51 K4 18BK/LB SENSOR GROUND
52 T52 18RD/BK INPUT SPEED SENSOR SIGNAL
53 Z112 14BK GROUND
8Wa - 80 - 98 8W-80 CONNECTOR PIN-OUTSKJ

TRANSMISSION CONTROL MODULE (3.7L) - BLACK 60 WAY
CAV CIRCUIT FUNCTION
54 T54 18VT TRANSMISSION TEMPERATURE SENSOR SIGNAL
55 T59 18PK UNDERDRIVE SOLENOID CONTROL
56 A30 14RD/WT FUSED B(+)
57 Z113 14BK/YL GROUND
58 - -
59 T159 18DG/WT 4C SOLENOID CONTROL
60 T60 18BR OVERDRIVE SOLENOID CONTROL
TRANSMISSION SOLENOID/TRS ASSEMBLY (3.7L) - GRAY 23 WAY
CAV CIRCUIT FUNCTION
1 F15 18DB/WT FUSED IGNITION SWITCH OUTPUT (RUN)
2 T20 18LB LOW/REVERSE SOLENOID CONTROL
3 T41 18BK/WT PARK/NEUTRAL POSITION SWITCH SENSE
4 T411 18WT/PK TRS T41 SENSE
5 T42 18VT/WT TRS T42 SENSE
6 L10 18BR/LG 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 T591 18YL/DB PRESSURE CONTROL SOLENOID CONTROL
13 T4 18PK/OR TRS T2 SENSE
14 T50 18DG LOW/REVERSE 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
WASHER FLUID LEVEL SWITCH - LT. GRAY 2 WAY
CAV CIRCUIT FUNCTION
1 G29 18BK/TN LOW WASHER FLUID SENSE
2 Z141 18BK GROUND
KJ8W-80 CONNECTOR PIN-OUTS8Wa-80-99

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/NUMBER COLOR LOCATION FIG.
A/C Compressor Clutch BK At A/C Compressor 2, 20
A/C Heater Control C1 BK Center of Dash, Behind
A/C-Heater ControlsN/S
A/C Heater Control C2 WT Center of Dash, Behind
A/C-Heater ControlsN/S
A/C High Pressure Switch (Diesel) GY Left Front Side of Engine
Compartment20
A/C Low Pressure Switch (LHD) GY Left Rear Side of Engine
Compartment31
A/C Low Pressure Switch (RHD) GY Right Rear Side of Engine
Compartment24
A/C Pressure Transducer (2.4L) BK Front Side of Engine 12, 15
A/C Pressure Transducer (3.7L) BK Front Side of Engine 2
Accelerator Pedal Position Sensor
(Diesel)BK Left Rear Side of Engine
Compartment19
Airbag Control Module C1 (ORC C1) YL Under Center Console 33, 37
Airbag Control Module C2 (ORC C2) BK Under Center Console 33, 37
Ambient Temperature Sensor BK Front of Engine
CompartmentN/S
Antenna Module C1 (BUX) Above Right Quarter Window 44, 45
Antenna Module C2 (BUX) Above Right Quarter Window N/S
Ash Receiver Lamp Center of Dash N/S
Back-Up Lamp Switch (2.4L) BK Right Side of Transmission 12
Back-Up Lamp Switch (M/T) (3.7L)
(Diesel)BK Left Side of Transmission 7, 22
Battery Temperature Sensor BK Left Side of Engine
Compartment30
KJ8W-91 CONNECTOR/GROUND/SPLICE LOCATION8Wa-91-1

CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
Front Wiper Motor (RHD) BK Right Side of Cowl 24
Fuel Heater (Diesel) BK Left Rear Side of Engine
Compartment19
Fuel Injector No.1 (Diesel) BK At Fuel Injector 23
Fuel Injector No.1 (Gas) BK At Fuel Injector 1
Fuel Injector No.2 (Diesel) BK At Fuel Injector 23
Fuel Injector No.2 (Gas) BK At Fuel Injector 2
Fuel Injector No.3 (Diesel) BK At Fuel Injector 23
Fuel Injector No.3 (Gas) BK At Fuel Injector 1
Fuel Injector No.4 (Diesel) BK At Fuel Injector 22
Fuel Injector No.4 (Gas) BK At Fuel Injector 2
Fuel Injector No.5 (3.7L) BK At Fuel Injector 1
Fuel Injector No.6 (3.7L) BK At Fuel Injector 2
Fuel Pressure Sensor (Diesel) Left Side of Engine 22
Fuel Pressure Solenoid (Diesel) BK Left Side of Engine 20
Fuel Pump Module LG At Fuel Tank N/S
Generator BK Left Front Side of Engine 20
Glow Plug Assembly (Diesel) Top of Engine N/S
Headlamp Leveling Switch (BUX) BK Center of Instrument Panel N/S
Heated Seat Module (Highline) GN At Left Seat N/S
High Note Horn BK Left Front Side of Engine
Compartment29
Hood Ajar Switch Right Side of Engine
Compartment25
Idle Air Control Motor BK On Throttle Body 1
Ignition Switch At Steering Column N/S
Input Speed Sensor (3.7L) BK Left Side of Transmission 5
Instrument Cluster BK Rear of Cluster N/S
Intake Air Temperature Sensor GY Left Side of Intake Manifold 1
Intrusion Sensor (BUX) BK Overhead Console N/S
Junction Block Body Control Module -
JBUnder Left Side of
Instrument PanelN/S
Junction Block C1 GY Under Left Side of
Instrument PanelN/S
Junction Block C2 GN Under Left Side of
Instrument PanelN/S
Junction Block C3 LB Under Left Side of
Instrument PanelN/S
Knock Sensor (3.7L) BK Near Fuel Injector No.5 1
Leak Detection Pump BK Near Fuel Tank N/S
Left Curtain Airbag YL Left Mid B-Pillar 35, 38
Left Cylinder Lock Switch LG In Left Front Door 41
Left Door Lock Switch BK In Left Front Door 41
Left Fog Lamp BK Left Side of Front Bumper N/S
KJ8W-91 CONNECTOR/GROUND/SPLICE LOCATION8Wa-91-5
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
Left Front Door Ajar Switch (Base) BK In Left Front Door N/S
Left Front Door Lock Motor/Ajar
Switch (Except Base)BK In Left Front Door 41
Left Front Door Speaker BK Behind Left Front Door Panel 41
Left Front Impact Sensor BK Front Side of Engine
Compartment28
Left Front Park/Turn Signal Lamp BK Behind Left Turn Signal
LampN/S
Left Front Power Window Motor LG In Left Front Door 41
Left Front Wheel Speed Sensor BK Left Side of Engine
Compartment30
Left Headlamp (BUX) Behind Left Headlamp N/S
Left Headlamp (Except BUX) DB Behind Left Headlamp N/S
Left Heated Seat Assembly LG At Left Seat N/S
Left Heated Seat Switch BK At Left Seat N/S
Left Instrument Panel Lamp BK Left Side of Instrument Panel N/S
Left Instrument Panel Speaker BK Left Side of Instrument Panel 33, 37
Left Leveling Motor (BUX) BK At Left Headlamp N/S
Left Position Lamp (BUX) BK Left Front Side of Vehicle N/S
Left Power Mirror WT In Left Front Door 41
Left Power Seat Motors BK At Left Seat N/S
Left Power Seat Switch GN At Left Seat N/S
Left Rear Door Ajar Switch (Base) BK In Left Rear Door N/S
Left Rear Door Lock Motor/Ajar
Switch (Except Base)BK In Left Rear Door N/S
Left Rear Door Speaker In Left Rear Door
Left Rear Power Window Motor LG In Left Rear Door N/S
Left Remote Radio Switch BK On Steering Wheel N/S
Left Side Impact Airbag Control
Module (LSIACM)YL Left Lower B-Pillar 35, 38
Left Side Marker Lamp BK Left Front Fender N/S
Left Side Repeater Lamp (BUX) BK Left Front Fender N/S
Left Speed Control Switch BK On Steering Wheel N/S
Left Tail/Stop Lamp BK Left Rear Quarter Panel 45
Left Visor/Vanity Lamp WT Left Front of Headliner N/S
License Lamp (BUX) LG In Tailgate 46
License Lamp (Except BUX) LG On Bumper N/S
Line Pressure Sensor (3.7L) BK Right Side of Transmission 6
Low Note Horn BK Left Front Side of Engine
Compartment29
Manifold Absolute Pressure Sensor BK Front Side of Engine 2
Mass Air Flow Sensor (Diesel) Top of Engine 21
Multi-Function Switch C1 GY At Steering Column N/S
Multi-Function Switch C2 GY At Steering Column N/S
8Wa - 91 - 6 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONKJ
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
Output Speed Sensor BK Left Side of Transmission 5
Overhead Map/Courtesy Lamp BK Overhead Console N/S
Oxygen Sensor 1/1 Upstream (2.4L) BK Right Side of Engine 12
Oxygen Sensor 1/1 Upstream (3.7L) BK Lower Left Side of Engine 3
Oxygen Sensor 1/2 Downstream
(2.4L)NAT Right Side of Transmission 11, 12
Oxygen Sensor 1/2 Downstream
(3.7L)NAT Left Side of Transmission 5, 7
Oxygen Sensor 2/1 Upstream (3.7L) BK Lower Right Side of Engine 4
Oxygen Sensor 2/2 Downstream
(3.7L)NAT Right Side of Transmission 6
Park Brake Switch BK Center Console 36, 40
Passenger Airbag YL Right Side Instrument Panel N/S
Passenger Seat Belt Switch LG At Passenger Seat N/S
Power Mirror Switch WT In Left Front Door 41
Power Outlet RD Center of Instrument Panel N/S
Power Steering Pressure Switch BK Left Front Side of Engine 3, 15
Power Window Master Switch LG Center Console 36, 40
Powertrain Control Module C1 (2.4L) BK At Powertrain Control Module 13, 14
Powertrain Control Module C1 (3.7L) BK At Powertrain Control Module 8, 9, 10
Powertrain Control Module C2 WT At Powertrain Control Module 8, 9, 10, 13, 14
Powertrain Control Module C3 GY At Powertrain Control Module 31
Radiator Fan Motor BK Right Front Side of Engine
Compartment28
Radiator Fan Relay BK Left Front Side of Engine
Compartment29
Radio C1 GY Rear of Radio N/S
Radio C2 Rear of Radio N/S
Radio C3 Rear of Radio N/S
Radio Choke GY Center of Instrument Panel N/S
Rear Map/Reading Lamp BK Overhead Console N/S
Rear Power Outlet RD Right Rear Quarter Panel 44, 45, 48
Rear Power Window Switch WT Center Console 36, 40
Rear Wheel Speed Sensor BK On Rear Axle N/S
Rear Window Defogger BK At Rear Window 46
Rear Wiper Motor BK In Tailgate 46
Red Brake Warning Indicator Switch
(LHD)GY Left Rear Side of Engine
Compartment31
Red Brake Warning Indicator Switch
(RHD)GY Right Rear Side of Engine
Compartment26
Right Curtain Airbag YL Right Mid B-Pillar 34, 39
Right Cylinder Lock Switch (Except
Base)LG In Right Front Door 41
KJ8W-91 CONNECTOR/GROUND/SPLICE LOCATION8Wa-91-7
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
Siren (BUX) Right Front Side of Engine
Compartment28
Speed Control Servo BK Right Rear Side of Engine
Compartment27
Sunroof Motor LG Overhead Console N/S
Sunroof Switch BK Overhead Console N/S
Tailgate Cylinder Lock Switch LG In Tailgate 46
Tailgate Flip-Up Ajar Switch GY In Tailgate 46
Tailgate Lock Motor/Ajar Switch BK In Tailgate 46
Throttle Position Sensor WT On Throttle Body 1
Trailer Tow Brake Lamp Relay Right Quarter Panel 47
Trailer Tow Circuit Breaker Right Quarter Panel N/S
Trailer Tow Connector BK At Trailer Hitch 47, 48
Trailer Tow Right Turn Relay Right Quarter Panel 47
Trailer Tow Relay Right Quarter Panel 47
Trailer Tow Left Turn Relay Right Quarter Panel 47
Transfer Case Position Sensor BK Rear Side of Transmission 5, 7, 11, 12, 22
Transmission Control Module (3.7L)
(LHD)BK Right Rear Side of Engine
Compartment8, 9
Transmission Control Module (3.7L)
(RHD)BK Left Rear Side of Engine
Compartment10
Transmission Solenoid/TRS
Assembly (3.7L)GY Left Side of Transmission 5
Under Hood Lamp BK Underside of Hood 24
Washer Fluid Level Switch LG At Washer Fluid Reservoir 28
Water In Fuel Sensor (Diesel) Left Rear Side of Engine
Compartment19
GROUNDS
GROUND NUMBER LOCATION FIG.
G100 Left Side of Engine Compartment 8, 9, 10, 14, 19
G101 (2.4L) Left Side of Engine Compartment 11
G102 (LHD) Right Rear Side of Engine Compartment 9
G102 (RHD) Left Rear Side of Engine Compartment 10
G103 (3.7L) Right Front Side of Engine 4
G103 (Diesel) Right Front Side of Engine 20
G104 Near Engine Control Module C2 19
G105 Left Side of Engine Compartment N/S
G106 Left Side of Engine Compartment N/S
G110 Left Side of Engine Compartment 30
G111 Left Front Side of Engine Compartment 29
G112 Left Front Side of Engine Compartment 29
G200 Near Body Control Module N/S
KJ8W-91 CONNECTOR/GROUND/SPLICE LOCATION8Wa-91-9
CONNECTOR/GROUND/SPLICE LOCATION (Continued)