2002 JEEP LIBERTY Anti

8W-45 BODY CONTROL MODULE
Component Page
A/C- Heater Control................. 8Wa-45-5
Ambient Temperature Sensor.......... 8Wa-45-7
Body Control Module . 8Wa-45-10, 11, 2, 3, 4, 5, 6, 7,
8, 9
Brake Lamp Switch................. 8Wa-45-2
Cargo Lamp..................... 8Wa-45-4, 8
Clockspring........................ 8Wa-45-5
Controller Antilock Brake............. 8Wa-45-5
Data Link Connector............. 8Wa-45-10, 11
Defogger Relay..................... 8Wa-45-3
Diagnostic Junction Port.............. 8Wa-45-6
Door Lock Relay.................... 8Wa-45-4
Driver Door Unlock Relay............. 8Wa-45-3
Engine Control Module............... 8Wa-45-5
Flip-Up Glass Release Motor........... 8Wa-45-8
Flip-Up Glass Release Switch.......... 8Wa-45-8
Front Fog Lamp Relay............... 8Wa-45-4
Fuse 3............................ 8Wa-45-7
Fuse 6............................ 8Wa-45-3
Fuse 13........................... 8Wa-45-2
Fuse 32........................... 8Wa-45-2
Fuse 34........................... 8Wa-45-2
G111 ............................. 8Wa-45-7
G202........................... 8Wa-45-2, 6
G300............................. 8Wa-45-9
G302............................. 8Wa-45-9
Hazard Switch/Combination Flasher..... 8Wa-45-5
High Beam Relay................... 8Wa-45-3
Hood Ajar Switch................... 8Wa-45-7
Horn Relay........................ 8Wa-45-7
Ignition Switch..................... 8Wa-45-6
Instrument Cluster.................. 8Wa-45-6Component Page
Junction Block.............. 8Wa-45-2, 3, 4, 7, 8
Left Courtesy Lamp................. 8Wa-45-4
Left Cylinder Lock Switch....... 8Wa-45-10, 11, 4
Left Door Lock Switch.............. 8Wa-45-4, 7
Left Front Door Ajar Switch........... 8Wa-45-9
Left Front Door Lock Motor/Ajar
Switch...................... 8Wa-45-10, 11
Left Rear Door Ajar Switch............ 8Wa-45-9
Left Visor/Vanity Lamp............... 8Wa-45-3
Low Beam Relay.................... 8Wa-45-3
Multi- Function Switch........... 8Wa-45-3, 5, 6
Overhead Map/Reading Lamp........ 8Wa-45-3, 4
Park Lamp Relay................... 8Wa-45-3
Passenger Door Unlock Relay.......... 8Wa-45-3
Powertrain Control Module............ 8Wa-45-5
Rear Fog Lamp Relay................ 8Wa-45-2
Rear Wiper Motor................. 8Wa-45-6, 8
Remote Keyless Entry Module......... 8Wa-45-8
Right Courtesy Lamp................ 8Wa-45-4
Right Cylinder Lock Switch...... 8Wa-45-10, 11, 4
Right Door Lock Switch............ 8Wa-45-4, 7
Right Front Door Ajar Switch.......... 8Wa-45-9
Right Front Door Lock Motor/Ajar
Switch...................... 8Wa-45-10, 11
Right Rear Door Ajar Switch........... 8Wa-45-9
Right Remote Radio Switch............ 8Wa-45-5
Right Visor/Vanity Lamp.............. 8Wa-45-3
Tailgate Cylinder Lock Switch.... 8Wa-45-10, 11, 8
Tailgate Lock Motor/Ajar Switch...... 8Wa-45-7, 8
Washer Pump...................... 8Wa-45-6
Wiper High/Low Relay............... 8Wa-45-4
Wiper On/Off Relay.................. 8Wa-45-4
KJ8W-45 BODY CONTROL MODULE8Wa-45-1

8W-54 TRAILER TOW
Component Page
Back-Up Lamp Switch............... 8Wa-54-3
Body Control Module................ 8Wa-54-2
Brake Lamp Switch................. 8Wa-54-4
Trailer Tow Circuit Breaker........... 8Wa-54-6
Controller Antilock Brake............. 8Wa-54-4
Electric Brake Provision.............. 8Wa-54-3
Fuse 2............................ 8Wa-54-6
Fuse 9............................ 8Wa-54-2
Fuse 10........................... 8Wa-54-6
Fuse 19........................... 8Wa-54-4
Fuse 25........................... 8Wa-54-6
G202............................. 8Wa-54-2Component Page
G310............................. 8Wa-54-5
Hazard Switch/Combination Flasher..... 8Wa-54-4
Junction Block.................. 8Wa-54-2, 4, 6
Park Lamp Relay................... 8Wa-54-2
Power Distribution Center............ 8Wa-54-6
Trailer Tow Brake Lamp Relay....... 8Wa-54-4, 5
Trailer Tow Circuit Breaker........... 8Wa-54-6
Trailer Tow Connector.......... 8Wa-54-2, 3, 5, 6
Trailer Tow Left Turn Relay......... 8Wa-54-4, 5
Trailer Tow Relay................. 8Wa-54-5, 6
Trailer Tow Right Turn Relay........ 8Wa-54-4, 5
Transmission Solenoid/Trs Assembly..... 8Wa-54-3
KJ8W-54 TRAILER TOW8Wa-54-1

Component Page
C316 (Built-Up-Export).............. 8Wa-80-46
C316 (Built-Up-Export).............. 8Wa-80-46
C317 (Except Built-Up-Export)........ 8Wa-80-47
C317 (Except Built-Up-Export)........ 8Wa-80-47
Cabin Heater (Diesel)............... 8Wa-80-47
Camshaft Position Sensor (2.4L)....... 8Wa-80-47
Camshaft Position Sensor (3.7L)....... 8Wa-80-47
Camshaft Position Sensor (Diesel)...... 8Wa-80-48
Capacitor......................... 8Wa-80-48
Cargo Lamp (Except Base)........... 8Wa-80-48
CD Changer...................... 8Wa-80-48
Center High Mounted Stop Lamp...... 8Wa-80-49
Cigar Lighter..................... 8Wa-80-49
Clockspring C1.................... 8Wa-80-49
Clockspring C2.................... 8Wa-80-49
Clockspring C3.................... 8Wa-80-49
Clutch Interlock Switch (M/T)......... 8Wa-80-50
Coil On Plug No. 1 (3.7L)............ 8Wa-80-50
Coil On Plug No. 2 (3.7L)............ 8Wa-80-50
Coil On Plug No. 3 (3.7L)............ 8Wa-80-50
Coil On Plug No. 4 (3.7L)............ 8Wa-80-50
Coil On Plug No. 5 (3.7L)............ 8Wa-80-51
Coil On Plug No. 6 (3.7L)............ 8Wa-80-51
Coil Rail (2.4L).................... 8Wa-80-51
Compass Mini-Trip Computer
(Premium)...................... 8Wa-80-51
Controller Antilock Brake............ 8Wa-80-52
Crankshaft Position Sensor (2.4L)...... 8Wa-80-52
Crankshaft Position Sensor (3.7L)...... 8Wa-80-52
Crankshaft Position Sensor (Diesel).... 8Wa-80-53
Data Link Connector................ 8Wa-80-53
Diagnostic Junction Port............. 8Wa-80-53
Dome Lamp (Base)................. 8Wa-80-54
Driver Airbag Squib 1............... 8Wa-80-54
Driver Airbag Squib 2............... 8Wa-80-54
Driver Seat Belt Switch............. 8Wa-80-54
Driver Seat Belt Tensioner........... 8Wa-80-54
EGR Solenoid (Diesel)............... 8Wa-80-55
Engine Control Module C1........... 8Wa-80-55
Engine Control Module C2........... 8Wa-80-56
Engine Coolant Level Sensor (Diesel) . . . 8Wa-80-57
Engine Coolant Temp Sensor (Diesel) . . . 8Wa-80-57
Engine Coolant Temperature
Sensor (Gas).................... 8Wa-80-58
Engine Oil Pressure Sensor........... 8Wa-80-58
Evap/Purge Solenoid................ 8Wa-80-58
Flip-Up Glass Release Motor.......... 8Wa-80-58
Flip-Up Glass Release Switch......... 8Wa-80-58
Front Wiper Motor................. 8Wa-80-59
Fuel Heater (Diesel)................ 8Wa-80-59
Fuel Injector No. 1 (Diesel)........... 8Wa-80-59
Fuel Injector No. 1 (Gas)............. 8Wa-80-59
Fuel Injector No. 2 (Diesel)........... 8Wa-80-59
Fuel Injector No. 2 (Gas)............. 8Wa-80-60Component Page
Fuel Injector No. 3 (Diesel)........... 8Wa-80-60
Fuel Injector No. 3 (Gas)............. 8Wa-80-60
Fuel Injector No. 4 (Diesel)........... 8Wa-80-60
Fuel Injector No. 4 (Gas)............. 8Wa-80-60
Fuel Injector No. 5 (3.7L)............ 8Wa-80-61
Fuel Injector No. 6 (3.7L)............ 8Wa-80-61
Fuel Pressure Sensor (Diesel)......... 8Wa-80-61
Fuel Pressure Solenoid (Diesel)........ 8Wa-80-61
Fuel Pump Module................. 8Wa-80-61
G202............................ 8Wa-80-61
Generator........................ 8Wa-80-62
Glow Plug Assembly (Diesel).......... 8Wa-80-62
Hazard Switch/Combination Flasher.... 8Wa-80-62
Headlamp Leveling Switch
(Built-Up-Export)................ 8Wa-80-63
Heated Seat Module (Highline)........ 8Wa-80-63
High Note Horn.................... 8Wa-80-63
Hood Ajar Switch (Except Base)....... 8Wa-80-63
Idle Air Control Motor............... 8Wa-80-64
Ignition Switch.................... 8Wa-80-64
Input Speed Sensor (3.7L)............ 8Wa-80-64
Instrument Cluster................. 8Wa-80-64
Intake Air Temperature Sensor (Gas) . . . 8Wa-80-65
Intrusion Sensor (Built-Up-Export)..... 8Wa-80-65
Junction Block Body Control Module-JB . 8Wa-80-65
Junction Block C1.................. 8Wa-80-66
Junction Block C2.................. 8Wa-80-67
Junction Block C3.................. 8Wa-80-68
Knock Sensor (3.7L)................ 8Wa-80-69
Leak Detection Pump............... 8Wa-80-69
Left Courtesy Lamp................ 8Wa-80-69
Left Curtain Airbag................. 8Wa-80-69
Left Cylinder Lock Switch (Except Base) . 8Wa-80-69
Left Door Lock Switch (Except Base) . . . 8Wa-80-70
Left Fog Lamp..................... 8Wa-80-70
Left Front Door Ajar Switch (Base)..... 8Wa-80-70
Left Front Door Lock Motor/Ajar Switch
(Except Base)................... 8Wa-80-70
Left Front Door Speaker (Base)........ 8Wa-80-70
Left Front Door Speaker (Premium).... 8Wa-80-71
Left Front Impact Sensor............ 8Wa-80-71
Left Front Park/Turn Signal Lamp..... 8Wa-80-71
Left Front Power Window Motor
(Midline/Highline)................ 8Wa-80-71
Left Front Wheel Speed Sensor (ABS) . . . 8Wa-80-72
Left Headlamp (Built-Up-Export)...... 8Wa-80-72
Left Headlamp (Except Built-Up-Export) . 8Wa-80-72
Left Heated Seat Assembly (Highline) . . . 8Wa-80-72
Left Heated Seat Switch (Highline)..... 8Wa-80-72
Left Instrument Panel Speaker........ 8Wa-80-73
Left Leveling Motor (Built-Up-Export) . . 8Wa-80-73
Left Position Lamp (Built-Up-Export) . . . 8Wa-80-73
Left Power Mirror (Except Base)....... 8Wa-80-73
8Wa - 80 - 2 8W-80 CONNECTOR PIN-OUTSKJ

CONTROLLER ANTILOCK BRAKE - LT.GRAY 24 WAY
CAV CIRCUIT FUNCTION
1 Z101 12BK/OR GROUND
2- -
3- -
4- -
5 D25 18YL/VT PCI BUS
6 B6 18WT/DB RIGHT FRONT WHEEL SPEED SENSOR SIGNAL
7 B7 18WT RIGHT FRONT WHEEL SPEED SENSOR 12 VOLT
SUPPLY
8 D24 18WT/DG FLASH ABS
9 A20 12RD/DB FUSED B(+)
10 F22 18DB/PK FUSED IGNITION SWITCH OUTPUT (RUN)
11 - -
12 - -
13 B12 18DG/OR VEHICLE SPEED SIGNAL
14 - -
15 - -
16 Z102 12BK/OR GROUND
17 S43 18LB/YL FLUID PRESSURE SWITCH SIGNAL
18 L50 18WT/TN BRAKE LAMP SWITCH OUTPUT
19 B1 18YL/DB REAR WHEEL SPEED SENSOR SIGNAL
20 B2 18YL REAR WHEEL SPEED SENSOR 12 VOLT SUPPLY
21 - -
22 B8 18RD/DB LEFT FRONT WHEEL SPEED SENSOR SIGNAL
23 B9 18RD LEFT FRONT WHEEL SPEED SENSOR 12 VOLT SUP-
PLY
24 A10 12RD/DG FUSED B(+)
CRANKSHAFT POSITION SENSOR (2.4L) - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 K24 18GY/BK CRANKSHAFT POSITION SENSOR SIGNAL
2 K4 18BK/LB SENSOR GROUND
3 K7 18OR 5 VOLT SUPPLY
CRANKSHAFT POSITION SENSOR (3.7L) - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 K24 18GY/BK CRANKSHAFT POSITION SENSOR SIGNAL
2 K4 18BK/LB SENSOR GROUND
3 K7 18OR 5 VOLT SUPPLY
8Wa - 80 - 52 8W-80 CONNECTOR PIN-OUTSKJ

CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
Coil On Plug No.5 (3.7L) BK Left Side of Engine Near
Fuel Injector No.51
Coil On Plug No.6 (3.7L) BK Right Side of Engine Near
Fuel Injector No.62
Coil Rail (2.4L) BK Right Side of Engine 11, 12
Combination Flasher WT Under Left Side of
Instrument PanelN/S
Compass Mini-Trip Computer BK At Overhead Console N/S
Controller Antilock Brake BK Left Side of Engine
Compartment30
Crankshaft Position Sensor (2.4L) BK Top of Engine N/S
Crankshaft Position Sensor (3.7L) BK Right Lower Side of Engine 4
Crankshaft Position Sensor (Diesel) BK Right Rear Side of Engine 17
Data Link Connector BK Under Center of Instrument
PanelN/S
Diagnostic Junction Port BK Under Center of Instrument
Panel49
Dome Lamp (Base) BK On Headliner N/S
Driver Airbag Squib 1 GY In Steering Wheel N/S
Driver Airbag Squib 2 BK In Steering Wheel N/S
Driver Seat Belt Switch LG At Drive Seat N/S
Driver Seat Belt Tensioner (LHD) YL Lower Left B-Pillar 35
Driver Seat Belt Tensioner (RHD) YL Lower Right B-Pillar 39
EGR Solenoid Right Rear Side of Engine
Compartment27
Engine Control Module C1 BK Left Rear Side of Engine
Compartment19
Engine Control Module C2 BK Left Rear Side of Engine
Compartment19
Engine Coolant Level Sensor (Diesel) LG Rear Side of Engine
Compartment18
Engine Coolant Temperature Sensor
(Diesel)BK Left Side of Engine 20
Engine Coolant Temperature Sensor
(Gas)BK Front Side of Engine 2
Engine Oil Pressure Sensor (2.4L) BK Top of Engine N/S
Engine Oil Pressure Sensor (3.7L) BK Left Front Side of Engine 3
Engine Oil Pressure Sensor (Diesel) BK Right Rear Side of Engine 17
Engine Starter Motor Right Front Side of Engine 20
Evap/Purge Solenoid BK At Solenoid N/S
Flip-Up Glass Release Motor BK In Tailgate 46
Flip-Up Glass Release Switch WT In Tailgate 46
Front Washer Pump BK Right Front Side of Engine
Compartment28
Front Wiper Motor (LHD) BK Left Side of Cowl 24
8Wa - 91 - 4 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONKJ
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

GROUND NUMBER LOCATION FIG.
G201 Under Center Console 33, 37
G202 Left Kick Panel (Black Connector) N/S
G203 Under Center of Instrument Panel N/S
G300 Left Front Seat 35
G301 Under Center Console N/S
G302 Right Front Seat 39
G310 Right Quarter Panel 44, 45
G311 Left Quarter Panel 43
G312 Left Quarter Panel N/S
G320 At Fuel Tank N/S
SPLICES
SPLICE NUMBER LOCATION FIG.
S101 Near T/O to Power Distribution Center N/S
S104 Near T/O to Power Distribution Center N/S
S106 Near T/O for G112 N/S
S107 (Diesel) In T/O for C100 32
S108 Near T/O for C106 29
S109 In Trough Near T/O for Radiator Fan Relay N/S
S110 Near T/O for C106 29
S111 In Trough Near T/O for Radiator Fan Relay N/S
S112 Near T/O to Power Distribution Center N/S
S113 (LHD) In T/O for C100 32
S114 In T/O for C100 N/S
S115 Near T/O for Engine Control Module N/S
S118 In T/O for C100 32
S121 Near T/O to Power Distribution Center N/S
S122 In T/O for Controller Antilock Brake 30
S123 In Trough, Front of Engine Compartment N/S
S124 In T/O for Junction Block C3 N/S
S125 In T/O for Junction Block C3 N/S
S130 Near T/O for Left Headlamp N/S
S131 In T/O for Right Headlamp N/S
S140 Near T/O for Left Front Park/Turn Signal Lamp N/S
S141 Near T/O for Left Fog Lamp N/S
S142 Near T/O for Left Front Park/Turn Signal Lamp N/S
S143 Near T/O for Right Front Park/Turn Signal Lamp N/S
S144 Near T/O for Left Fog Lamp N/S
S145 Near T/O for Right Front Park/Turn Signal Lamp N/S
S146 Near T/O for Right Front Park/Turn Signal Lamp N/S
S151 (2.4L) Near T/O for C110 11, 12
S151 (3.7L) In Trough Near T/O for Fuel Injector No.3 1
8Wa - 91 - 10 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONKJ
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

FLEX PLATE
REMOVAL
(1) Remove the transmission.
(2) Remove the bolts and flexplate.
INSTALLATION
(1) Position the flexplate onto the crankshaft and
install the bolts hand tight.
(2) Tighten the flexplate retaining bolts to 95 N´m
(70 ft. lbs.) in the sequence shown (Fig. 51).
(3) Install the transmission.
PISTON & CONNECTING ROD
DESCRIPTION
CAUTION: Do not use a metal stamp to mark con-
necting rods as damage may result, instead use ink
or a scratch awl.
The pistons are made of a high strength aluminum
alloy. The top ring groove is coated with a anti-seize
coating. The connecting rods are made of forged pow-
dered metal, with a ªfractured capº design. A full
floating piston pin is used to attach the piston to the
connecting rod (Fig. 52).
1 Connecting Rod
2 Piston
3 Piston Pin
4 Oil Slinger Slot
STANDARD PROCEDURE
CONNECTING ROD BEARING - FITTING
Inspect the connecting rod bearings for scoring and
bent alignment tabs. Check the bearings for normal
wear patterns, scoring, grooving, fatigue and pitting.
Replace any bearing that shows abnormal wear.
Inspect the connecting rod journals for signs of
scoring, nicks and burrs.
Misaligned or bent connecting rods can cause
abnormal wear on pistons, piston rings, cylinder
walls, connecting rod bearings and crankshaft con-
necting rod journals. If wear patterns or damage to
any of these components indicate the probability of a
misaligned connecting rod, inspect it for correct rod
alignment. Replace misaligned, bent or twisted con-
necting rods.
(1) Wipe the oil from the connecting rod journal.
(2) Lubricate the upper bearing insert and install
in connecting rod.
(3) Use piston ring compressor and Guide Pins
Special Tool 8507 to install the rod and piston assem-
blies. The oil slinger slots in the rods must face front
of the engine. The ªFº's near the piston wrist pin
bore should point to the front of the engine.
(4) Install the lower bearing insert in the bearing
cap. The lower insert must be dry. Place strip of Plas-
tigage across full width of the lower insert at the cen-
ter of bearing cap. Plastigage must not crumble in
use. If brittle, obtain fresh stock.
(5) Install bearing cap and connecting rod on the
journal and tighten bolts to 27 N´m (20 ft. lbs.) plus a
Fig. 51 Flexplate Tightening Sequence
1 - FLEXPLATE
Fig. 52 PISTON AND ROD ASSEMBLY
KJENGINE - 3.7L 9 - 49

INSTALLATION
CAUTION: To prevent severe damage to the Crank-
shaft, Damper or Special Tool 8512, thoroughly
clean the damper bore and the crankshaft nose
before installing Damper.
(1) Align crankshaft damper slot with key in
crankshaft. Slide damper onto crankshaft slightly.
CAUTION: Special Tool 8512A, is assembled in a
specific sequence. Failure to assemble this tool in
this sequence can result in tool failure and severe
damage to either the tool or the crankshaft.
(2) Assemble Special Tool 8512±A as follows, The
nut is threaded onto the shaft first. Then the roller
bearing is placed onto the threaded rod (The hard-
ened bearing surface of the bearingMUSTface the
nut). Then the hardened washer slides onto the
threaded rod (Fig. 63). Once assembled coat the
threaded rod's threads with MopartNickel Anti-
Seize or (Loctite No. 771).
(3) Using Special Tool 8512A, press damper onto
crankshaft (Fig. 64).
(4) Install then tighten crankshaft damper bolt to
175 N´m (130 ft. lbs.).
(5) Install accessory drive belt (Refer to 7 - COOL-
ING/ACCESSORY DRIVE/DRIVE BELTS - INSTAL-
LATION).
(6) Connect negative cable to battery.
STRUCTURAL COVER
DESCRIPTION
The structural dust cover is made of die cast alu-
minum and joins the lower half of the transmission
bell housing to the engine bedplate.
OPERATION
The structural cover provides additional power-
train stiffness and reduces noise and vibration.
REMOVAL
(1) Raise vehicle on hoist.
(2) Remove the bolts retaining structural cover
(Fig. 65).
(3) Remove the structural cover.
INSTALLATION
CAUTION: The structural cover must be installed as
described in the following steps. Failure to do so
will cause severe damage to the cover.
(1) Position the structural cover in the vehicle.
(2) Install all bolts retaining the cover-to-engine.
DO NOT tighten the bolts at this time.
(3) Install the cover-to-transmission bolts. Do NOT
tighten at this time.
Fig. 63 Proper Assembly Method for Special Tool
8512±A
1 - BEARING
2 - NUT
3 - THREADED ROD
4 - BEARING HARDENED SURFACE (FACING NUT)
5 - HARDENED WASHER
Fig. 64 Crankshaft Damper Installation
1 - SPECIAL TOOL 8512A
KJENGINE - 3.7L 9 - 55
VIBRATION DAMPER (Continued)