engine light JEEP LIBERTY 2002 KJ / 1.G Repair Manual

(5) Remove the rear check valve and rear washer
nozzle hose as a unit through the CHMSL mounting
hole.
(6) Disconnect the rear washer nozzle hose from
the barbed nipple of the rear check valve.
INSTALLATION
(1) Reconnect the rear washer nozzle hose to the
barbed nipple of the rear check valve. Be certain that
the flow direction arrow molded into the rear check
valve body is oriented towards the rear washer noz-
zle hose.
WARNING: THE EDGES OF THE SHEET METAL
AROUND THE CENTER HIGH MOUNTED STOP
LAMP MOUNTING HOLE IN THE ROOF PANEL.
TAKE THE PROPER PRECAUTIONS TO AVOID PER-
SONAL INJURY.
(2) Reach through the CHMSL unit mounting hole
in the rear of the roof panel to access and pull the
headliner washer hose into the Center High Mounted
Stop Lamp (CHMSL) unit mounting hole (Fig. 4).
(3) Reconnect the headliner washer hose to the
barbed nipple of the rear check valve.
(4) Reach through the CHMSL unit mounting hole
in the rear of the roof panel to access and reconnect
the rear washer nozzle hose to the barbed nipple of
the rear washer nozzle.
(5) Reinstall the CHMSL unit to the rear of the
roof panel. (Refer to 8 - ELECTRICAL/LAMPS/
LIGHTING - EXTERIOR/CENTER HIGH
MOUNTED STOP LAMP UNIT - INSTALLATION).
(6) Reconnect the battery negative cable.
REAR WASHER HOSES/TUBES
DESCRIPTION
The rear washer plumbing consists of small diam-
eter rubber hose routed from the barbed outlet nipple
of the reversible electric washer pump/motor unit on
the washer reservoir through a trough molded into
the reservoir rearward of the washer pump up to the
top of the reservoir. Near the base of the reservoir
filler neck an in-line plastic fitting connects the res-
ervoir rear washer hose to the engine compartment
rear washer hose, which is routed through the reser-
voir filler neck opening in the front extension of the
right front fender wheel house panel in to the engine
compartment. The engine compartment rear washer
hose is routed side by side with the front washer
hose along the top of the right front fender wheel
house to the dash panel. Molded plastic routing clips
secure the hoses to the headlamp and dash wire har-
ness in the engine compartment.
The engine compartment rear washer hose is con-
nected to the headliner washer hose near the right
side of the dash panel with a molded plastic in-line
fitting (Fig. 5). The headliner hose has a rubber
grommet that allows it to pass through the dash
panel from the passenger compartment into the
engine compartment. The headliner hose is routed
below the instrument panel in the passenger com-
partment near the right cowl side inner panel. The
hose is routed up the right A-pillar to the headliner.
Mounting clips secure the hose to the A-pillar. The
Fig. 4 Rear Check Valve Remove/Install
1 - WASHER NOZZLE HOSE
2 - REAR CHECK VALVE
3 - HEADLINER HOSE
4 - ROOF PANEL
5 - NEEDLE NOSE PLIERS
6 - CHMSL MOUNTING HOLE
Fig. 5 Rear Washer Headliner Hose
1 - COWL SIDE INNER PANEL
2 - A-PILLAR
3 - HEADLINER HOSE
4 - CLIP (3)
5 - GROMMET
6 - DASH PANEL
KJREAR WIPERS/WASHERS 8R - 35
REAR CHECK VALVE (Continued)

TERMINOLOGY
This is a list of terms and definitions used in the
wiring diagrams.
LHD .................Left Hand Drive Vehicles
RHD................Right Hand Drive Vehicles
ATX . . Automatic Transmissions-Front Wheel Drive
MTX....Manual Transmissions-Front Wheel Drive
AT ....Automatic Transmissions-Rear Wheel Drive
MT .....Manual Transmissions-Rear Wheel Drive
SOHC...........Single Over Head Cam Engine
DOHC..........Double Over Head Cam Engine
Built-Up-Export........ Vehicles Built For Sale In
Markets Other Than North America
Except-Built-Up-Export . . Vehicles Built For Sale In
North America
DESCRIPTION - CIRCUIT INFORMATION
Each wire shown in the diagrams contains a code
which identifies the main circuit, part of the main
circuit, gage of wire, and color (Fig. 4).
WIRE COLOR CODE CHART
COLOR CODE COLOR
BL BLUE
BK BLACK
BR BROWN
DB DARK BLUE
DG DARK GREEN
GY GRAY
LB LIGHT BLUE
LG LIGHT GREEN
COLOR CODE COLOR
OR ORANGE
PK PINK
RD RED
TN TAN
VT VIOLET
WT WHITE
YL YELLOW
* WITH TRACER
DESCRIPTION - CIRCUIT FUNCTIONS
All circuits in the diagrams use an alpha/numeric
code to identify the wire and it's function. To identify
which circuit code applies to a system, refer to the
Circuit Identification Code Chart. This chart shows
the main circuits only and does not show the second-
ary codes that may apply to some models.
CIRCUIT IDENTIFICATION CODE CHART
CIRCUIT FUNCTION
A BATTERY FEED
B BRAKE CONTROLS
C CLIMATE CONTROLS
D DIAGNOSTIC CIRCUITS
E DIMMING ILLUMINATION
CIRCUITS
F FUSED CIRCUITS
G MONITORING CIRCUITS
(GAUGES)
H OPEN
I NOT USED
J OPEN
K POWERTRAIN CONTROL
MODULE
L EXTERIOR LIGHTING
M INTERIOR LIGHTING
N NOT USED
O NOT USED
P POWER OPTION (BATTERY
FEED)
Q POWER OPTIONS (IGNITION
FEED)
R PASSIVE RESTRAINT
S SUSPENSION/STEERING
T TRANSMISSION/TRANSAXLE/
TRANSFER CASE
Fig. 4 WIRE CODE IDENTIFICATION
1 - COLOR OF WIRE (LIGHT BLUE WITH YELLOW TRACER
2 - GAGE OF WIRE (18 GAGE)
3 - PART OF MAIN CIRCUIT (VARIES DEPENDING ON
EQUIPMENT)
4 - MAIN CIRCUIT IDENTIFICATION
KJ8W-01 WIRING DIAGRAM INFORMATION8Wa-01-5
WIRING DIAGRAM INFORMATION (Continued)

CIRCUIT FUNCTION
U OPEN
V SPEED CONTROL, WIPER/
WASHER
W OPEN
X AUDIO SYSTEMS
Y OPEN
Z GROUNDS
DESCRIPTION - SECTION IDENTIFICATION AND
INFORMATION
The wiring diagrams are grouped into individual
sections. If a component is most likely found in a par-
ticular group, it will be shown complete (all wires,
connectors, and pins) within that group. For exam-
ple, the Auto Shutdown Relay is most likely to be
found in Group 30, so it is shown there complete. It
can, however, be shown partially in another group if
it contains some associated wiring.
Splice diagrams in Section 8W-70 show the entire
splice and provide references to other sections the
splices serves. Section 8W-70 only contains splice dia-
grams that are not shown in their entirety some-
where else in the wiring diagrams.
Section 8W-80 shows each connector and the cir-
cuits involved with that connector. The connectors
are identified using the name/number on the dia-
gram pages.
WIRING SECTION CHART
GROUP TOPIC
8Wa-01 thru
8W-09General information and Diagram
Overview
8Wa-10 thru
8W-19Main Sources of Power and
Vehicle Grounding
8Wa-20 thru
8W-29Starting and Charging
8Wa-30 thru
8W-39Powertrain/Drivetrain Systems
8Wa-40 thru
8W-49Body Electrical items and A/C
8Wa-50 thru
8W-59Exterior Lighting, Wipers and
Trailer Tow
8Wa-60 thru
8W-69Power Accessories
8Wa-70 Splice Information
8Wa-80 Connector Pin Outs
8Wa-91 Connector, Ground and Splice
Locations
DESCRIPTION - CONNECTOR, GROUND AND
SPLICE INFORMATION
CAUTION: Not all connectors are serviced. Some
connectors are serviced only with a harness. A typ-
ical example might be the Supplemental Restraint
System connectors. Always check parts availability
before attempting a repair.
IDENTIFICATION
In-line connectors are identified by a number, as
follows:
²In-line connectors located in the engine compart-
ment are C100 series numbers
²In-line connectors located in the Instrument
Panel area are C200 series numbers.
²In-line connectors located in the body are C300
series numbers.
²Jumper harness connectors are C400 series
numbers.
²Grounds and ground connectors are identified
with a ªGº and follow the same series numbering as
the in-line connectors.
²Splices are identified with an ªSº and follow the
same series numbering as the in-line connectors.
²Component connectors are identified by the com-
ponent name instead of a number. Multiple connec-
tors on a component use a C1, C2, etc. identifier.
LOCATIONS
Section 8W-91 contains connector/ground/splice
location illustrations. The illustrations contain the
connector name (or number)/ground number/splice
number and component identification. Connector/
ground/splice location charts in section 8W-91 refer-
ence the figure numbers of the illustrations.
The abbreviation T/O is used in the component
location section to indicate a point in which the wir-
ing harness branches out to a component. The abbre-
viation N/S means Not Shown in the illustrations
WARNINGS - GENERAL
WARNINGSprovide information to prevent per-
sonal injury and vehicle damage. Below is a list of
general warnings that should be followed any time a
vehicle is being serviced.
WARNING:: ALWAYS WEAR SAFETY GLASSES FOR
EYE PROTECTION.
WARNING: USE SAFETY STANDS ANYTIME A PRO-
CEDURE REQUIRES BEING UNDER A VEHICLE.
8Wa - 01 - 6 8W-01 WIRING DIAGRAM INFORMATIONKJ
WIRING DIAGRAM INFORMATION (Continued)

8W-02 COMPONENT INDEX
Component Page
A/C Compressor Clutch Relay........... 8Wa-42
A/C Compressor Clutch................ 8Wa-42
A/C-Heater Control................... 8Wa-42
A/C High Pressure Switch.............. 8Wa-42
A/C Low Pressure Switch............... 8Wa-42
A/C Pressure Transducer............... 8Wa-42
Accelerator Pedal Position Sensor........ 8Wa-30
Airbag Control Module................. 8Wa-43
Ambient Temperature Sensor............ 8Wa-45
Antenna Module...................... 8Wa-47
Antenna............................ 8Wa-47
Ash Receiver Lamp................... 8Wa-44
Auto Shut Down Relay................. 8Wa-30
Back-Up Lamp Switch................. 8Wa-31
Battery Temperature Sensor......... 8Wa-20, 30
Battery............................. 8Wa-20
Blend Door Actuator................... 8Wa-42
Blower Motor Relay................... 8Wa-42
Blower Motor Resistor Block............ 8Wa-42
Blower Motor........................ 8Wa-42
Body Control Module.................. 8Wa-45
Boost Pressure Sensor................. 8Wa-30
Brake Lamp Switch................... 8Wa-33
Brake Pressure Switch................. 8Wa-35
Cabin Heater Relay................... 8Wa-42
Cabin Heater........................ 8Wa-42
Camshaft Position Sensor.............. 8Wa-30
Capacitor........................... 8Wa-30
Cargo Lamp......................... 8Wa-44
CD Changer......................... 8Wa-47
Center High Mounted Stop Lamp........ 8Wa-51
Cigar Lighter........................ 8Wa-41
Circuit Breakers...................... 8Wa-12
Clockspring................. 8Wa-33, 41, 43, 47
Clutch Interlock Switch................ 8Wa-21
Clutch Switch Override Relay........... 8Wa-21
Coil On Plugs........................ 8Wa-30
Coil Rail............................ 8Wa-30
Compass Mini-Trip Computer........... 8Wa-49
Controller Antilock Brake.............. 8Wa-35
Courtesy Lamps...................... 8Wa-44
Crankshaft Position Sensor............. 8Wa-30
Curtain Airbags...................... 8Wa-43
Cylinder Lock Switches................ 8Wa-61
Data Link Connector.................. 8Wa-18
Daytime Running Lamp Relay........... 8Wa-50
Defogger Relay....................... 8Wa-48
Diagnostic Junction Port............... 8Wa-18
Dome Lamp......................... 8Wa-44
Door Ajar Switches.................... 8Wa-45
Door Lock Motor/Ajar Switches.......... 8Wa-61
Door Lock Relay...................... 8Wa-61Component Page
Door Lock Switches................... 8Wa-61
Door Speakers....................... 8Wa-47
Driver Airbag Squib 1................. 8Wa-43
Driver Airbag Squib 2................. 8Wa-43
Driver Door Unlock Relay.............. 8Wa-61
Driver Seat Belt Switch................ 8Wa-40
Driver Seat Belt Tensioner.............. 8Wa-43
EGR Solenoid........................ 8Wa-30
Electric Brake Provision................ 8Wa-54
Engine Control Module................ 8Wa-30
Engine Coolant Level Sensor............ 8Wa-40
Engine Coolant Temperature Sensor...... 8Wa-30
Engine Oil Pressure Sensor............. 8Wa-30
EVAP/Purge Solenoid.................. 8Wa-30
Flip-Up Glass Release Motor............ 8Wa-61
Flip-Up Glass Release Switch........... 8Wa-61
Fog Lamps.......................... 8Wa-50
Front Fog Lamp Relay................. 8Wa-50
Front Wiper Motor.................... 8Wa-53
Fuel Heater Relay.................... 8Wa-30
Fuel Heater......................... 8Wa-30
Fuel Injectors........................ 8Wa-30
Fuel Pressure Sensor.................. 8Wa-30
Fuel Pressure Solenoid................. 8Wa-30
Fuel Pump Module.................... 8Wa-30
Fuel Pump Relay..................... 8Wa-30
Fuses........................... 8Wa-10, 12
Fusible Link......................... 8Wa-20
Grounds............................ 8Wa-15
Generator........................... 8Wa-20
Glow Plugs.......................... 8Wa-30
Hazard Switch/Combination Flasher...... 8Wa-52
Headlamp Leveling Switch.............. 8Wa-50
Headlamps.......................... 8Wa-50
Heated Seats........................ 8Wa-63
High Beam Relay..................... 8Wa-50
Horns.............................. 8Wa-41
Hood Ajar Switch..................... 8Wa-45
Idle Air Control Motor................. 8Wa-30
Ignition Switch....................... 8Wa-10
Impact Sensors....................... 8Wa-43
Input Speed Sensor................... 8Wa-31
Instrument Cluster................... 8Wa-40
Instrument Panel Speakers............. 8Wa-47
Intake Air Temperature Sensor.......... 8Wa-30
Intrusion Sensor..................... 8Wa-49
Junction Block....................... 8Wa-12
Knock Sensor........................ 8Wa-30
Leak Detection Pump.................. 8Wa-30
Leveling Motors...................... 8Wa-50
License Lamp........................ 8Wa-51
Line Pressure Sensor.................. 8Wa-31
KJ8W-02 COMPONENT INDEX8Wa-02-1

8W-12 JUNCTION BLOCK
Component Page
A/C Compressor Clutch Relay...............8Wa-12-19
A/C-Heater Control.................8Wa-12-26, 28, 35
Airbag Control Module.................8Wa-12-18, 25
Antenna Module.....................8Wa-12-23, 24
Ash Receiver Lamp......................8Wa-12-35
Auto Shut Down Relay...................8Wa-12-19
Back-Up Lamp Switch....................8Wa-12-28
Blend Door Actuator.....................8Wa-12-26
Blower Motor Relay.....................8Wa-12-25
Body Control Module . 8Wa-12-9, 10, 11, 13, 14, 15, 18, 21 22, 23
, 24, 27, 28, 30, 31, 32, 33, 34
Brake Lamp Switch.....................8Wa-12-16
Brake Pressure Switch....................8Wa-12-25
Cargo Lamp........................8Wa-12-30, 34
Center High Mounted Stop Lamp.............8Wa-12-16
Cigar Lighter.......................8Wa-12-23, 24
Circuit Breaker No. 1....................8Wa-12-29
Circuit Breaker No. 3 (JB)...............8Wa-12-23, 24
Clockspring...........................8Wa-12-9
Compass Mini-Trip Computer.............8Wa-12-18, 30
Controller Antilock Brake...............8Wa-12-16, 25
Data Link Connector.....................8Wa-12-29
Daytime Running Lamp Relay...............8Wa-12-27
Defogger Relay........................8Wa-12-28
Dome Lamp........................8Wa-12-30, 34
Door Lock Relay........................8Wa-12-11
Driver Door Unlock Relay..................8Wa-12-11
Engine Control Module...................8Wa-12-20
EVAP/Purge Solenoid....................8Wa-12-19
Front Fog Lamp Relay.................8Wa-12-21, 22
Front Wiper Motor......................8Wa-12-32
Fuel Pump Relay.......................8Wa-12-19
Fuse 1..............................8Wa-12-9
Fuse 2..............................8Wa-12-10
Fuse 3..............................8Wa-12-9
Fuse 4..............................8Wa-12-10
Fuse 5..............................8Wa-12-10
Fuse 6..............................8Wa-12-11
Fuse 7..............................8Wa-12-16
Fuse 9....................8Wa-12-13, 14, 15, 21, 22
Fuse 11.............................8Wa-12-17
Fuse 12.............................8Wa-12-16
Fuse 13.............................8Wa-12-18
Fuse 15...........................8Wa-12-19, 20
Fuse 16...........................8Wa-12-21, 22
Fuse 17...........................8Wa-12-21, 22
Fuse 18...........................8Wa-12-21, 22
Fuse 19...........................8Wa-12-21, 22
Fuse 20...........................8Wa-12-23, 24
Fuse 22...........................8Wa-12-23, 24
Fuse 23........................8Wa-12-13, 14, 15
Fuse 24.............................8Wa-12-25
Fuse 25.............................8Wa-12-26
Fuse 26.............................8Wa-12-27
Fuse 27.............................8Wa-12-27
Fuse 29.............................8Wa-12-17
Fuse 30.............................8Wa-12-28
Fuse 31...........................8Wa-12-23, 24
Fuse 32...........................8Wa-12-23, 24
Fuse 33.............................8Wa-12-29
Fuse 34.............................8Wa-12-30
Fuse 36.............................8Wa-12-18
Fuse 37.............................8Wa-12-25
Fuse 38.............................8Wa-12-25
Fuse 39.............................8Wa-12-28
G202...................8Wa-12-11, 13, 14, 15, 27, 32
Hazard Switch/Combination Flasher......8Wa-12-17, 28, 35
Headlamp Leveling Switch...............8Wa-12-14, 15
Heated Seat Module.....................8Wa-12-17
High Beam Relay.......................8Wa-12-27Component Page
High Note Horn.........................8Wa-12-9
Horn Relay...........................8Wa-12-9
Horn Switch...........................8Wa-12-9
Instrument Cluster..........8Wa-12-13, 14, 15, 18, 30, 35
Intrusion Sensor.......................8Wa-12-30
Junction Block . 8Wa-12-2, 3, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18,
19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 30, 31, 32, 33, 34, 35,
Left Courtesy Lamp...................8Wa-12-30, 34
Left Cylinder Lock Switch.................8Wa-12-33
Left Door Lock Switch.............8Wa-12-23, 24, 31, 33
Left Fog Lamp......................8Wa-12-21, 22
Left Front Door Lock Motor/Ajar Switch.......8Wa-12-11, 12
Left Front Park/Turn Signal Lamp............8Wa-12-13
Left Headlamp......................8Wa-12-10, 27
Left Heated Seat Switch...................8Wa-12-26
Left Position Lamp....................8Wa-12-14, 15
Left Power Mirror......................8Wa-12-28
Left Power Seat Switch...................8Wa-12-29
Left Rear Door Lock Motor/Ajar Switch.........8Wa-12-12
Left Side Impact Airbag Control Module.........8Wa-12-18
Left Side Marker Lamp...................8Wa-12-13
Left Tail/Stop Lamp..............8Wa-12-13, 14, 15, 16
Left Visor/Vanity Lamp...................8Wa-12-30
Left Visor/Vanity Lamp...................8Wa-12-31
License Lamp.....................8Wa-12-13, 14, 15
Low Beam Relay.......................8Wa-12-10
Low Note Horn.........................8Wa-12-9
Multi-Function Switch...............8Wa-12-23, 24, 27
Overhead Map/Reading Lamp...........8Wa-12-30, 31, 34
Park Lamp Relay..................8Wa-12-13, 14, 15
Passenger Door Unlock Relay...............8Wa-12-11
Power Distribution Center........8Wa-12-16, 21, 22, 31, 32
Power Mirror Switch.....................8Wa-12-26
Power Outlet..........................8Wa-12-9
Powertrain Control Module.................8Wa-12-19
Radio Choke........................8Wa-12-21, 22
Radio.......................8Wa-12-23, 24, 30, 35
Rear Fog Lamp Relay....................8Wa-12-10
Rear Power Outlet....................8Wa-12-21, 22
Rear Window Defogger....................8Wa-12-28
Rear Wiper Motor....................8Wa-12-21, 22
Right Courtesy Lamp..................8Wa-12-30, 34
Right Cylinder Lock Switch.................8Wa-12-33
Right Door Lock Switch............8Wa-12-23, 24, 31 33
Right Fog Lamp.....................8Wa-12-21, 22
Right Front Door Lock Motor/Ajar Switch......8Wa-12-11, 12
Right Front Park/Turn Signal Lamp...........8Wa-12-13
Right Headlamp.....................8Wa-12-10, 27
Right Heated Seat Switch..................8Wa-12-26
Right Position Lamp...................8Wa-12-14, 15
Right Power Mirror......................8Wa-12-28
Right Power Seat Switch..................8Wa-12-29
Right Rear Door Lock Motor/Ajar Switch........8Wa-12-12
Right Side Impact Airbag Control Module........8Wa-12-18
Right Side Marker Lamp..................8Wa-12-13
Right Tail/Stop Lamp...........8Wa-12-10, 13, 14, 15, 16
Right Visor/Vanity Lamp................8Wa-12-30, 31
Sentry Key Immobilizer Module.........8Wa-12-19, 20, 29
Shifter Assembly.....................8Wa-12-25, 35
Siren...............................8Wa-12-30
Sunroof Motor.......................8Wa-12-23, 24
Tailgate Lock Motor/Ajar Switch..............8Wa-12-32
Trailer Tow Brake Lamp Relay..........8Wa-12-16, 21, 22
Trailer Tow Connector...............8Wa-12-13, 14, 15
Trailer Tow Relay.......................8Wa-12-26
Transmission Control Module...............8Wa-12-19
Transmission Solenoid/TRS Assembly..........8Wa-12-28
Wiper On/Off Relay...............8Wa-12-23, 24, 31, 32
KJ8W-12 JUNCTION BLOCK8Wa-12-1

8W-15 GROUND DISTRIBUTION
Component Page
A/C Compressor Clutch...................8Wa-15-6
A/C Low Pressure Switch.................8Wa-15-3
A/C- Heater Control...................8Wa-15-7, 8
Airbag Control Module...................8Wa-15-7
Ash Receiver Lamp.....................8Wa-15-8
Battery.............................8Wa-15-2
Blend Door Actuator.....................8Wa-15-8
Blower Motor Relay.....................8Wa-15-4
Body Control Module....................8Wa-15-8
Brake Lamp Switch.....................8Wa-15-8
Cabin Heater.........................8Wa-15-6
Capacitor............................8Wa-15-2
Center High Mounted Stop Lamp...........8Wa-15-14
Cigar Lighter.........................8Wa-15-8
Compass Mini-Trip Computer..............8Wa-15-14
Controller Antilock Brake.................8Wa-15-2
Data Link Connector....................8Wa-15-2
Engine Control Module...................8Wa-15-7
Engine Coolant Level Sensor...............8Wa-15-6
Flip-Up Glass Release Motor..............8Wa-15-14
Front Wiper Motor......................8Wa-15-3
Fuel Heater..........................8Wa-15-6
Fuel Heater Relay......................8Wa-15-4
Fuel Pump Module.....................8Wa-15-15
G100.............................8Wa-15-2, 7
G101...............................8Wa-15-6
G102...............................8Wa-15-2
G103...............................8Wa-15-6
G104...............................8Wa-15-7
G105...............................8Wa-15-2
G106...............................8Wa-15-2
G110...............................8Wa-15-2
G111 .............................8Wa-15-3, 4
G112...............................8Wa-15-3
G200...............................8Wa-15-7
G201...............................8Wa-15-7
G202...............................8Wa-15-8
G300............................8Wa-15-9, 11
G301............................8Wa-15-9, 10
G302............................8Wa-15-9, 12
G310.........................8Wa-15-13, 14, 15
G311 ..............................8Wa-15-14
G312..............................8Wa-15-14
G320..............................8Wa-15-15
Hazard Switch/Combination Flasher..........8Wa-15-8
Headlamp Leveling Switch................8Wa-15-8
Heated Seat Module....................8Wa-15-10
High Note Horn.......................8Wa-15-3
Hood Ajar Switch.......................8Wa-15-4
Ignition Switch........................8Wa-15-8
Instrument Cluster.....................8Wa-15-8
Intrusion Sensor......................8Wa-15-14
Junction Block........................8Wa-15-8
Left Door Lock Switch...................8Wa-15-11
Left Fog Lamp........................8Wa-15-5
Left Front Door Ajar Switch...............8Wa-15-11
Left Front Door Lock Motor/Ajar Switch.......8Wa-15-11
Left Front Door Speaker..................8Wa-15-7
Left Front Park/Turn Signal Lamp...........8Wa-15-5
Left Headlamp........................8Wa-15-3
Left Heated Seat Assembly...............8Wa-15-10
Left Heated Seat Switch.................8Wa-15-10Component Page
Left Leveling Motor.....................8Wa-15-3
Left Position Lamp.....................8Wa-15-3
Left Power Mirror.....................8Wa-15-11
Left Power Seat Switch..................8Wa-15-10
Left Rear Door Ajar Switch...............8Wa-15-11
Left Rear Door Lock Motor/Ajar Switch.......8Wa-15-11
Left Side Impact Airbag Control Module........8Wa-15-9
Left Side Repeater Lamp..................8Wa-15-5
Left Tail/Stop Lamp....................8Wa-15-15
License Lamp........................8Wa-15-15
Line Pressure Sensor....................8Wa-15-2
Low Note Horn........................8Wa-15-3
Multi- Function Switch...................8Wa-15-8
Oxygen Sensor 1/2 Downstream.............8Wa-15-6
Oxygen Sensor 2/2 Downstream.............8Wa-15-6
Power Mirror Switch.................8Wa-15-11, 12
Power Outlet.........................8Wa-15-8
Power Steering Pressure Switch.............8Wa-15-6
Power Window Master Switch.............8Wa-15-10
Powertrain Control Module................8Wa-15-2
Radiator Fan Motor.....................8Wa-15-3
Radiator Fan Relay.....................8Wa-15-3
Radio..............................8Wa-15-7
Radio Choke..........................8Wa-15-9
Rear Power Outlet.....................8Wa-15-15
Rear Window Defogger..................8Wa-15-14
Rear Wiper Motor.....................8Wa-15-14
Red Brake Warning Indicator Switch..........8Wa-15-4
Right Door Lock Switch..................8Wa-15-12
Right Fog Lamp.......................8Wa-15-5
Right Front Door Ajar Switch..............8Wa-15-12
Right Front Door Lock Motor/Ajar Switch......8Wa-15-12
Right Front Door Speaker.................8Wa-15-7
Right Front Park/Turn Signal Lamp..........8Wa-15-5
Right Headlamp.......................8Wa-15-4
Right Heated Seat Assembly..............8Wa-15-10
Right Heated Seat Switch................8Wa-15-10
Right Leveling Motor....................8Wa-15-4
Right Position Lamp....................8Wa-15-4
Right Power Mirror....................8Wa-15-12
Right Power Seat Switch.................8Wa-15-10
Right Rear Door Ajar Switch..............8Wa-15-12
Right Rear Door Lock Motor/Ajar Switch......8Wa-15-12
Right Side Impact Airbag Control Module.......8Wa-15-9
Right Side Repeater Lamp.................8Wa-15-5
Right Tail/Stop Lamp...................8Wa-15-15
Sentry Key Immobilizer Module.............8Wa-15-8
Shifter Assembly.......................8Wa-15-9
Siren...............................8Wa-15-4
Speed Control Servo.....................8Wa-15-3
Starter Motor Relay.....................8Wa-15-4
Sunroof Motor........................8Wa-15-14
Tailgate Flip-Up Ajar Switch..............8Wa-15-14
Trailer Tow Brake Lamp Relay.............8Wa-15-13
Trailer Tow Connector...................8Wa-15-13
Trailer Tow Left Turn Relay...............8Wa-15-13
Trailer Tow Relay......................8Wa-15-13
Trailer Tow Right Turn Relay..............8Wa-15-13
Transmission Control Module...............8Wa-15-2
Transmission Control Relay................8Wa-15-4
Washer Fluid Level Switch................8Wa-15-3
KJ8W-15 GROUND DISTRIBUTION8Wa-15-1

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

C107 - BLACK (FRONT END LIGHTING SIDE)
CAV CIRCUIT
6 L62 18BR/RD
7-
8 L39 18LB (FOG LAMPS)
9-
10 L63 18DG/RD
C108 (GAS) - GRAY (BATTERY SIDE)
CAV CIRCUIT
1 K52 18PK/BK
2 K20 18DG
3 K125 18WT/DB
4 T40 12BR
5 F1 18DB
6-
C108 (GAS) - GRAY (HEADLAMP AND DASH
SIDE)
CAV CIRCUIT
1 K52 18PK/BK
2 K20 18DG
3 K125 18WT/DB
4 T40 12BR
5 F1 18DB
6-
C110 (2.4L) - BLACK (ENGINE TO HEADLAMP
AND DASH SIDE)
CAV CIRCUIT
1 F142 18OR/DG
2 C3 18DB/BK
3 Z246 18BK/GY
4 K11 18WT/DB
5 K12 18TN
6 K13 18YL/WT
7 K14 18LB/BR
8 K44 18TN/YL
9 K4 18BK/LB
10 -
8Wa - 80 - 24 8W-80 CONNECTOR PIN-OUTSKJ

CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
C302 (LHD) OR Right A-Pillar 34, 41, 42
C302 (RHD) OR Left A-Pillar 38, 41
C303 (LHD) OR Right A-Pillar 34, 41, 42
C303 (RHD) OR Left A-Pillar 38, 41
C304 DB Right Mid B-Pillar 34, 39
C305 DB Left Mid B-Pillar 35, 38
C306 (LHD) WT Left Lower B-Pillar 35, 43
C306 (RHD) WT Right Lower B-Pillar 39, 45
C307 (LHD) LG Left Lower B-Pillar 35, 38, 44
C308 LG Left Rear Quarter Panel 43
C309 DB Left Rear Quarter Panel 43, 46
C310 LG Right Rear Quarter Panel 44, 45, 47
C311 LG Left Front Seat 35, 38
C312 (Highline) LG Left Front Seat 35, 38
C313 LG Right Front Seat 36, 39, 40
C314 LG Right Front Seat 36, 39, 40
C315 (Midline/Highline) (LHD) LG Right Front Seat 34
C315 (Midline/Highline) (RHD) LG Left Front Seat 38
C317 (Except BUX) LG On Rear Bumper 45
Cabin Heater (Diesel) BK Right Front Side of Engine 21
Camshaft Position Sensor (2.4L) BK Top of Engine N/S
Camshaft Position Sensor (3.7L) LG Right Side of Engine 4
Camshaft Position Sensor (Diesel) Top of Engine 22
Capacitor (3.7L) BK Rear Side of Engine
Compartment9, 10
Capacitor (2.4L) BK Left Rear Side of Engine 11, 12
CD Changer GN At CD Changer N/S
Center High Mounted Stop Lamp WT At Lamp 46
Cigar Lighter RD Behind Cigar Lighter N/S
Clockspring C1 WT Behind Steering Wheel N/S
Clockspring C2 YL Behind Steering Wheel N/S
Clockspring C3 BK At Steering Wheel N/S
Clutch Interlock Switch (LHD) BK Left Rear Side of Engine
Compartment31
Clutch Interlock Switch (RHD) BK Right Rear Side of Engine
Compartment26
Coil On Plug No.1 (3.7L) BK Left Side of Engine Near
Fuel Injector No.11
Coil On Plug No.2 (3.7L) BK Right Side of Engine Near
Fuel Injector No.22
Coil On Plug No.3 (3.7L) BK Left Side of Engine Near
Fuel Injector No.31
Coil On Plug No.4 (3.7L) BK Right Side of Engine Near
Fuel Injector No.42
KJ8W-91 CONNECTOR/GROUND/SPLICE LOCATION8Wa-91-3
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - ENGINE
DIAGNOSIS - INTRODUCTION
Engine diagnosis is helpful in determining the
causes of malfunctions not detected and remedied by
routine maintenance.
These malfunctions may be classified as either per-
formance (e.g., engine idles rough and stalls) or
mechanical (e.g., a strange noise).
(Refer to 9 - ENGINE - DIAGNOSIS AND TEST-
ING)ÐPERFORMANCE and (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)ÐMECHANICAL for
possible causes and corrections of malfunctions.
(Refer to 14 - FUEL SYSTEM/FUEL DELIVERY -
DIAGNOSIS AND TESTING) and (Refer to 14 -
FUEL SYSTEM/FUEL INJECTION - DIAGNOSIS
AND TESTING) for the fuel system diagnosis.Additional tests and diagnostic procedures may be
necessary for specific engine malfunctions that can
not be isolated with the Service Diagnosis charts.
Information concerning additional tests and diagno-
sis is provided within the following diagnosis:
²Cylinder Compression Pressure Test (Refer to 9 -
ENGINE - DIAGNOSIS AND TESTING).
²Cylinder Combustion Pressure Leakage Test
(Refer to 9 - ENGINE - DIAGNOSIS AND TEST-
ING).
²Engine Cylinder Head Gasket Failure Diagnosis
(Refer to 9 - ENGINE/CYLINDER HEAD - DIAGNO-
SIS AND TESTING).
²Intake Manifold Leakage Diagnosis (Refer to 9 -
ENGINE/MANIFOLDS/INTAKE MANIFOLD -
DIAGNOSIS AND TESTING).
DIAGNOSIS AND TESTING - ENGINE DIAGNOSIS - PERFORMANCE
CONDITION POSSIBLE CAUSE CORRECTION
ENGINE WILL NOT START 1. Weak battery 1. Charge or replace as necessary.
2. Corroded or loose battery
connections.2. Clean and tighten battery
connections. Apply a coat of light
mineral grease to the terminals.
3. Faulty starter. 3. (Refer to 8 - ELECTRICAL/
STARTING - DIAGNOSIS AND
TESTING).
4. Faulty coil or control unit. 4. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/IGNITION
COIL - REMOVAL).
5. Incorrect spark plug gap. 5. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/SPARK PLUG
- CLEANING).
6. Incorrect right bank cam timing. 6. Refer to engine timing in this
section.
7. Dirt or water in fuel system. 7. Clean system and replace fuel
filter.
8.Faulty fuel pump, relay or wiring. 8.Repair or replace as necessary.
9. Faulty cam or crank sensor 9. Refer to Ignition system.
ENGINE STALLS OR ROUGH IDLE 1. Vacuum leak. 1. Inspect intake manifold and
vacuum hoses, repair or replace as
necessary.
2. Faulty crank position sensor 2. Replace crank position sensor.
4. Faulty coil. 4. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/IGNITION
COIL - REMOVAL).
9 - 4 ENGINE - 3.7LKJ
ENGINE - 3.7L (Continued)