engine coolant JEEP LIBERTY 2002 KJ / 1.G Manual PDF

The BCM continually monitors the door ajar
switches that are integral to each door latch to deter-
mine the status of the doors. The BCM then sends
the proper door ajar lamp-on and lamp-off messages
to the instrument cluster. For further diagnosis of
the door ajar indicator or the instrument cluster cir-
cuitry that controls the indicator, (Refer to 8 - ELEC-
TRICAL/INSTRUMENT CLUSTER - DIAGNOSIS
AND TESTING). For proper diagnosis of the door
ajar switches and circuits, the BCM, the PCI data
bus, or the electronic message inputs to the instru-
ment cluster that control the door ajar indicator, a
DRBIIItscan tool is required. Refer to the appropri-
ate diagnostic information.
ENGINE TEMPERATURE
GAUGE
DESCRIPTION
An engine coolant temperature gauge is standard
equipment on all instrument clusters. The engine
coolant temperature gauge is located in the right
lower corner of the instrument cluster, to the right of
the speedometer. The engine coolant temperature
gauge consists of a movable gauge needle or pointer
controlled by the instrument cluster circuitry and a
fixed 90 degree scale on the cluster overlay that
reads left-to-right from ªCº (or Cold) to ªHº (or Hot)
for all engines. An International Control and Display
Symbol icon for ªEngine Coolant Temperatureº is
located on the cluster overlay, in the center of the
gauge directly above the hub of the gauge needle.
The engine coolant temperature gauge graphics are
dark blue and black against a beige field, except for a
single light blue graduation at the far left (Cold) end
of the gauge scale and a single red graduation at the
far right (Hot) end of the gauge scale, making them
clearly visible within the instrument cluster in day-
light. When illuminated from behind by the panel
lamps dimmer controlled cluster illumination lighting
with the exterior lamps turned On, the blue graphics
appear blue and the red graphics appear red. The
orange gauge needle is internally illuminated. Gauge
illumination is provided by replaceable incandescent
bulb and bulb holder units located on the instrument
cluster electronic circuit board. The engine coolant
temperature gauge is serviced as a unit with the
instrument cluster.
OPERATION
The engine coolant temperature gauge gives an
indication to the vehicle operator of the engine cool-
ant temperature. This gauge is controlled by the
instrument cluster circuit board based upon cluster
programming and electronic messages received bythe cluster from the Powertrain Control Module
(PCM) over the Programmable Communications
Interface (PCI) data bus. The engine coolant temper-
ature gauge is an air core magnetic unit that receives
battery current on the instrument cluster electronic
circuit board through the fused ignition switch out-
put (run-start) circuit whenever the ignition switch is
in the On or Start positions. The cluster is pro-
grammed to move the gauge needle back to the low
end of the scale after the ignition switch is turned to
the Off position. The instrument cluster circuitry
controls the gauge needle position and provides the
following features:
²Engine Temperature Normal Message- Each
time the cluster receives a message from the PCM
indicating the engine coolant temperature is within
the normal operating range [up to about 124É C (255É
F) for gasoline engines, or about 110É C (230É F) for
diesel engines], the gauge needle is moved to the rel-
ative temperature position of the gauge scale.
²Engine Temperature High Message- Each
time the cluster receives a message from the PCM
indicating the engine coolant temperature is high
[above about 127É C (260É F) for gasoline engines, or
112É C (233É F) for diesel engines], the gauge needle
is moved into the center of the red warning zone on
the gauge scale.
²Engine Temperature Critical Message-
Each time the cluster receives a message from the
PCM indicating the engine coolant temperature is
critical [above about 132É C (269É F) for gasoline
engines, or 115É C (239É F) for diesel engines], the
gauge needle is moved to the high end of the red
warning zone on the gauge scale.
²Actuator Test- Each time the cluster is put
through the actuator test, the gauge needle will be
swept to the gauge calibration points on the gauge
scale in sequence in order to confirm the functional-
ity of the gauge and the cluster control circuitry.
The PCM continually monitors the engine coolant
temperature sensor to determine the engine operat-
ing temperature. The PCM then sends the proper
engine coolant temperature messages to the instru-
ment cluster. For further diagnosis of the engine cool-
ant temperature gauge or the instrument cluster
circuitry that controls the gauge, (Refer to 8 - ELEC-
TRICAL/INSTRUMENT CLUSTER - DIAGNOSIS
AND TESTING). If the instrument cluster moves the
engine coolant temperature gauge needle to indicate
a high or critical engine temperature, it may indicate
that the engine or the engine cooling system requires
service. For proper diagnosis of the engine coolant
temperature sensor, the PCM, the PCI data bus, or
the electronic message inputs to the instrument clus-
ter that control the engine coolant temperature
8J - 18 INSTRUMENT CLUSTERKJ
DOOR AJAR INDICATOR (Continued)

three consecutive messages from the PCM indicating
that the engine oil pressure is about 4 kPa or lower
(about 0.6 psi or lower), the low oil pressure indicator
is illuminated. The indicator remains illuminated
until the cluster receives a single message from the
PCM indicating that the engine oil pressure is about
76 kPa or higher (about 11 psi or higher), or until the
ignition switch is turned to the Off position, which-
ever occurs first. Once the cluster monitors and
engine speed of greater than 450 rpm, the cluster
logic will ignore engine speed in determining low oil
pressure indicator operation for the remainder of the
current ignition cycle.
²Actuator Test- Each time the cluster is put
through the actuator test, the low oil pressure indi-
cator will be turned on, then off again during the
bulb check portion of the test to confirm the function-
ality of the LED and the cluster control circuitry.
The PCM continually monitors the engine oil pres-
sure sensor to determine the engine oil pressure. The
PCM then sends the proper engine oil pressure mes-
sages to the instrument cluster. For further diagnosis
of the low oil pressure indicator or the instrument
cluster circuitry that controls the LED, (Refer to 8 -
ELECTRICAL/INSTRUMENT CLUSTER - DIAGNO-
SIS AND TESTING). If the instrument cluster turns
on the indicator after the bulb test, it may indicate
that the engine or the engine oiling system requires
service. For proper diagnosis of the engine oil pres-
sure sensor, the PCM, the PCI data bus, or the elec-
tronic message inputs to the instrument cluster that
control the low oil pressure indicator, a DRBIIItscan
tool is required. Refer to the appropriate diagnostic
information.
MALFUNCTION INDICATOR
LAMP (MIL)
DESCRIPTION
A Malfunction Indicator Lamp (MIL) is standard
equipment on all instrument clusters. The MIL is
located above the coolant temperature gauge and to
the right of the speedometer in the instrument clus-
ter. The MIL consists of a stencil-like cutout of the
International Control and Display Symbol icon for
ªEngineº in the opaque layer of the instrument clus-
ter overlay. The dark outer layer of the overlay pre-
vents the indicator from being clearly visible when it
is not illuminated. An amber Light Emitting Diode
(LED) behind the cutout in the opaque layer of the
overlay causes the icon to appear in amber through
the translucent outer layer of the overlay when it is
illuminated from behind by the LED, which is sol-
dered onto the instrument cluster electronic circuitboard. The MIL is serviced as a unit with the instru-
ment cluster.
OPERATION
The Malfunction Indicator Lamp (MIL) gives an
indication to the vehicle operator when the Power-
train Control Module (PCM) has recorded a Diagnos-
tic Trouble Code (DTC) for an On-Board Diagnostics
II (OBDII) emissions-related circuit or component
malfunction. This indicator is controlled by a transis-
tor on the instrument cluster electronic circuit board
based upon cluster programming and electronic mes-
sages received by the cluster from the PCM over the
Programmable Communications Interface (PCI) data
bus. The MIL Light Emitting Diode (LED) is com-
pletely controlled by the instrument cluster logic cir-
cuit, and that logic will only allow this indicator to
operate when the instrument cluster receives a bat-
tery current input on the fused ignition switch out-
put (run-start) circuit. Therefore, the LED will
always be off when the ignition switch is in any posi-
tion except On or Start. The LED only illuminates
when it is provided a path to ground by the instru-
ment cluster transistor. The instrument cluster will
turn on the MIL for the following reasons:
²Bulb Test- Each time the ignition switch is
turned to the On position the MIL is illuminated for
about seven seconds as a bulb test.
²PCM Lamp-On Message- Each time the clus-
ter receives a malfunction indicator lamp-on message
from the PCM, the indicator will be illuminated. The
indicator can be flashed on and off, or illuminated
solid, as dictated by the PCM message. For some
DTC's, if a problem does not recur, the PCM will
send a lamp-off message automatically. Other DTC's
may require that a fault be repaired and the PCM be
reset before a lamp-off message will be sent. For
more information on the PCM and the DTC set and
reset parameters, (Refer to 25 - EMISSIONS CON-
TROL - OPERATION).
²Communication Error- If the cluster receives
no malfunction indicator lamp-on or lamp-off mes-
sage from the PCM for twenty consecutive seconds,
the MIL is illuminated by the instrument cluster.
The indicator remains controlled and illuminated by
the cluster until a valid malfunction indicator
lamp-on or lamp-off message is received from the
PCM.
²Actuator Test- Each time the cluster is put
through the actuator test, the MIL will be turned on,
then off again during the bulb check portion of the
test to confirm the functionality of the LED and the
cluster control circuitry.
The PCM continually monitors each of the many
fuel and emissions system circuits and sensors to
decide whether the system is in good operating con-
8J - 24 INSTRUMENT CLUSTERKJ
LOW OIL PRESSURE INDICATOR (Continued)

ity of the headlamp and dash wire harness connector
for the washer fluid level switch and a good ground.
There should be continuity. If OK, go to Step 2. If not
OK, repair the open ground circuit to ground (G111)
as required.
(2) Remove the instrument cluster from the instru-
ment panel. Check for continuity between the washer
fluid sense circuit cavities of the headlamp and dash
wire harness connector for the washer fluid level
switch and the instrument panel wire harness con-
nector (Connector C2) for the instrument cluster. If
OK, replace the faulty washer fluid level switch. If
not OK, repair the open washer fluid switch sense
circuit between the washer fluid level switch and the
instrument cluster as required.
INDICATOR STAYS ILLUMINATED WITH WASHER
RESERVOIR FULL
(1) Disconnect and isolate the battery negative
cable. Disconnect the headlamp and dash wire har-
ness connector for the washer fluid level switch from
the washer fluid level switch connector receptacle.
Check for continuity between the ground circuit ter-
minal and the washer fluid sense terminal in the
washer fluid level switch connector receptacle. There
should be no continuity. If OK, go to Step 2. If not
OK, replace the faulty washer fluid level switch.
(2) Remove the instrument cluster from the instru-
ment panel. Check for continuity between the washer
fluid sense circuit cavity of the headlamp and dash
wire harness connector for the washer fluid level
switch and a good ground. There should be no conti-
nuity. If not OK, repair the shorted washer fluid
switch sense circuit between the washer fluid level
switch and the instrument cluster as required.
WATER-IN-FUEL INDICATOR
DESCRIPTION
A water-in-fuel indicator is only found in the
instrument clusters of vehicles equipped with an
optional diesel engine. The water-in-fuel indicator is
located above the coolant temperature gauge and to
the right of the speedometer in the instrument clus-
ter. The water-in-fuel indicator consists of a stencil-
like cutout of the International Control and Display
Symbol icon for ªWater In Fuelº in the opaque layer
of the instrument cluster overlay. The dark outer
layer of the overlay prevents the indicator from being
clearly visible when it is not illuminated. A red Light
Emitting Diode (LED) behind the cutout in the
opaque layer of the overlay causes the icon to appear
in red through the translucent outer layer of the
overlay when the indicator is illuminated from
behind by the LED, which is soldered onto the
instrument cluster electronic circuit board. Thewater-in-fuel indicator is serviced as a unit with the
instrument cluster.
OPERATION
The water-in-fuel indicator gives an indication to
the vehicle operator when there is excessive water in
the fuel system. This indicator is controlled by a
transistor on the instrument cluster electronic circuit
board based upon cluster programming and elec-
tronic messages received by the cluster from the
Powertrain Control Module (PCM) over the Program-
mable Communications Interface (PCI) data bus. The
water-in-fuel indicator Light Emitting Diode (LED) is
completely controlled by the instrument cluster logic
circuit, and that logic will only allow this indicator to
operate when the instrument cluster receives a bat-
tery current input on the fused ignition switch out-
put (run-start) circuit. Therefore, the LED will
always be off when the ignition switch is in any posi-
tion except On or Start. The LED only illuminates
when it is provided a path to ground by the instru-
ment cluster transistor. The instrument cluster will
turn on the water-in-fuel indicator for the following
reasons:
²Bulb Test- Each time the ignition switch is
turned to the On position the water-in-fuel indicator
is illuminated for about three seconds as a bulb test.
²Water-In-Fuel Lamp-On Message- Each time
the cluster receives a water-in-fuel lamp-on message
from the PCM indicating there is excessive water in
the diesel fuel system, the water-in-fuel indicator will
be illuminated. The indicator remains illuminated
until the cluster receives a water-in-fuel lamp-off
message, or until the ignition switch is turned to the
Off position, whichever occurs first.
²Actuator Test- Each time the cluster is put
through the actuator test, the water-in-fuel indicator
will be turned on, then off again during the bulb
check portion of the test to confirm the functionality
of the LED and the cluster control circuitry.
The PCM continually monitors the water-in-fuel
sensor to determine whether there is excessive water
in the diesel fuel. The PCM then sends the proper
water-in-fuel lamp-on and lamp-off messages to the
instrument cluster. For further diagnosis of the
water-in-fuel indicator or the instrument cluster cir-
cuitry that controls the indicator, (Refer to 8 - ELEC-
TRICAL/INSTRUMENT CLUSTER - DIAGNOSIS
AND TESTING). For proper diagnosis of the water-
in-fuel-sensor, the PCM, the PCI data bus, or the
electronic message inputs to the instrument cluster
that control the water-in-fuel indicator, a DRBIIIt
scan tool is required. Refer to the appropriate diag-
nostic information.
KJINSTRUMENT CLUSTER 8J - 37
WASHER FLUID INDICATOR (Continued)

(6) Slide speed control cable plastic mount towards
right of vehicle to remove cable from throttle body
bracket (Fig. 4).
(7) Remove servo cable from servo. Refer to Servo
Removal/Installation.
INSTALLATION - 3.7L
(1) Install end of cable to speed control servo.
Refer to Servo Removal/Installation.
(2) Slide speed control cable plastic mount into
throttle body bracket.
(3) Install speed control cable connector onto throt-
tle body bellcrank pin (push rearward to snap into
location).
(4) Slide throttle (accelerator) cable plastic mount
into throttle body bracket. Continue sliding until
cable release tab is aligned to hole in throttle body
mounting bracket.
(5) While holding throttle to wide open position,
place throttle cable pin into throttle body bellcrank.
(6) Install air filter resonator box to throttle body.
(7) Connect negative battery cable at battery.
(8) Before starting engine, operate accelerator
pedal to check for any binding.
SERVO
DESCRIPTION
The servo unit consists of a solenoid valve body,
and a vacuum chamber. The solenoid valve body con-
tains three solenoids:²Vacuum
²Vent
²Dump
The vacuum chamber contains a diaphragm with a
cable attached to control the throttle linkage.
OPERATION
The Powertrain Control Module (PCM) controls the
solenoid valve body. The solenoid valve body controls
the application and release of vacuum to the dia-
phragm of the vacuum servo. The servo unit cannot
be repaired and is serviced only as a complete assem-
bly.
Power is supplied to the servo's by the PCM
through the brake switch. The PCM controls the
ground path for the vacuum and vent solenoids.
The dump solenoid is energized anytime it receives
power. If power to the dump solenoid is interrupted,
the solenoid dumps vacuum in the servo. This pro-
vides a safety backup to the vent and vacuum sole-
noids.
The vacuum and vent solenoids must be grounded
at the PCM to operate. When the PCM grounds the
vacuum servo solenoid, the solenoid allows vacuum
to enter the servo and pull open the throttle plate
using the cable. When the PCM breaks the ground,
the solenoid closes and no more vacuum is allowed to
enter the servo. The PCM also operates the vent sole-
noid via ground. The vent solenoid opens and closes a
passage to bleed or hold vacuum in the servo as
required.
The PCM duty cycles the vacuum and vent sole-
noids to maintain the set speed, or to accelerate and
decelerate the vehicle. To increase throttle opening,
the PCM grounds the vacuum and vent solenoids. To
decrease throttle opening, the PCM removes the
grounds from the vacuum and vent solenoids. When
the brake is released, if vehicle speed exceeds 30
mph to resume, 35 mph to set, and the RES/ACCEL
switch has been depressed, ground for the vent and
vacuum circuits is restored.
REMOVAL
(1) Disconnect negative battery cable at battery.
(2) Disconnect vacuum line at servo (Fig. 5).
(3) Disconnect electrical connector at servo (Fig. 5).
(4) Remove coolant bottle nuts/bolts. Position bot-
tle forward a few inches.
(5) Disconnect servo cable at throttle body. Refer to
servo Cable Removal/Installation.
(6) Remove servo bracket mounting nuts (Fig. 5).
(7) Remove 2 mounting nuts holding servo cable
sleeve to bracket (Fig. 6).
(8) Pull speed control cable sleeve and servo away
from servo mounting bracket to expose cable retain-
ing clip (Fig. 6) and remove clip. Note: The servo
Fig. 4 SPEED CONTROL CABLE AT BRACKET
1 - THROTTLE CABLE BRACKET
2 - PLASTIC CABLE MOUNT
3 - SPEED CONTROL CABLE
8P - 4 SPEED CONTROLKJ
CABLE (Continued)

mounting bracket displayed in (Fig. 6) is a typical
bracket and may/may not be applicable to this model
vehicle.
(9) Remove servo from mounting bracket. While
removing, note orientation of servo to bracket.INSTALLATION
(1) Position servo to mounting bracket.
(2) Align hole in cable connector with hole in servo
pin. Install cable-to-servo retaining clip.
(3) Insert servo mounting studs through holes in
servo mounting bracket.
(4) Install servo-to-mounting bracket nuts and
tighten. Refer to torque specifications.
(5) Install servo mounting bracket-to-body nuts
and tighten. Refer to torque specifications.
(6) Connect vacuum line at servo.
(7) Connect electrical connector at servo.
(8) Connect servo cable to throttle body. Refer to
servo Cable Removal/Installation.
(9) Install coolant bottle.
(10) Connect negative battery cable to battery.
(11) Before starting engine, operate accelerator
pedal to check for any binding.
SWITCH
DESCRIPTION
There are two separate switch pods that operate
the speed control system. The steering-wheel-
mounted switches use multiplexed circuits to provide
inputs to the PCM for ON, OFF, RESUME, ACCEL-
ERATE, SET, DECEL and CANCEL modes. Refer to
the owner's manual for more information on speed
control switch functions and setting procedures.
The individual switches cannot be repaired. If one
switch fails, the entire switch module must be
replaced.
OPERATION
When speed control is selected by depressing the
ON, OFF switch, the PCM allows a set speed to be
stored in its RAM for speed control. To store a set
speed, depress the SET switch while the vehicle is
moving at a speed between approximately 35 and 85
mph. In order for the speed control to engage, the
brakes cannot be applied, nor can the gear selector
be indicating the transmission is in Park or Neutral.
The speed control can be disengaged manually by:
²Stepping on the brake pedal
²Depressing the OFF switch
²Depressing the CANCEL switch.
The speed control can be disengaged also by any of
the following conditions:
²An indication of Park or Neutral
²The VSS signal increases at a rate of 10 mph
per second (indicates that the co-efficient of friction
between the road surface and tires is extremely low)
²Depressing the clutch pedal.
²Excessive engine rpm (indicates that the trans-
mission may be in a low gear)
Fig. 5 SPEED CONTROL SERVO
1-9T9FITTING
2 - VACUUM LINE
3 - SERVO BRACKET MOUNTING NUTS
4 - SERVO MOUNTING BRACKET
5 - SERVO
6 - SERVO ELECTRICAL CONNECTOR
Fig. 6 SERVO CABLE CLIP REMOVE/INSTALL
TYPICAL
1 - SERVO MOUNTING NUTS (2)
2 - SERVO
3 - CABLE RETAINING CLIP
4 - SERVO CABLE AND SLEEVE
KJSPEED CONTROL 8P - 5
SERVO (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-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

8W-30 FUEL/IGNITION SYSTEM
Component Page
A/C Compressor Clutch.............. 8Wa-30-34
A/C Compressor Clutch Relay..... 8Wa-30-34, 2, 3
A/C High Pressure Switch............ 8Wa-30-29
A/C Low Pressure Switch.......... 8Wa-30-8, 29
A/C Pressure Transducer....... 8Wa-30-11, 23, 12
Accelerator Pedal Position Sensor...... 8Wa-30-27
Auto Shut Down Relay . . 8Wa-30-13, 14, 15, 24, 28,
31, 16, 17, 2
Battery Temperature Sensor........ 8Wa-30-30, 7
Blower Motor Relay................. 8Wa-30-31
Body Control Module.............. 8Wa-30-8, 33
Boost Pressure Sensor............ 8Wa-30-26, 28
Brake Lamp Switch............ 8Wa-30-8, 32, 33
Cabin Heater...................... 8Wa-30-34
Cabin Heater Relay................. 8Wa-30-34
Camshaft Position Sensor....... 8Wa-30-10, 9, 28
Capacitor...................... 8Wa-30-19, 17
Clockspring..................... 8Wa-30-33, 7
Clutch Switch Override Relay.... 8Wa-30-13, 8, 32
Coil On Plug No. 1................. 8Wa-30-19
Coil On Plug No. 2................. 8Wa-30-20
Coil On Plug No. 3................. 8Wa-30-19
Coil On Plug No. 4................. 8Wa-30-20
Coil On Plug No. 5................. 8Wa-30-19
Coil On Plug No. 6................. 8Wa-30-20
Coil Rail......................... 8Wa-30-17
Controller Antilock Brake............ 8Wa-30-33
Crankshaft Position Sensor...... 8Wa-30-10, 9, 27
Data Link Connector.............. 8Wa-30-25, 6
Diagnostic Junction Port........... 8Wa-30-25, 6
EGR Solenoid..................... 8Wa-30-30
Engine Control Module . . 8Wa-30-24, 25, 26, 27, 28,
29, 30, 31, 32, 33, 34, 35, 36
Engine Coolant Temperature Sensor . 8Wa-30-11, 28,
12
Engine Oil Pressure Sensor..... 8Wa-30-11, 28, 12
Evap/Purge Solenoid................. 8Wa-30-2
Fuel Heater....................... 8Wa-30-31
Fuel Heater Relay.................. 8Wa-30-31
Fuel Injector No. 1............... 8Wa-30-18, 36
Fuel Injector No. 2............... 8Wa-30-18, 36
Fuel Injector No. 3............... 8Wa-30-18, 36
Fuel Injector No. 4............... 8Wa-30-18, 36
Fuel Injector No. 5................. 8Wa-30-18
Fuel Injector No. 6................. 8Wa-30-18
Fuel Pressure Sensor............... 8Wa-30-36
Fuel Pressure Solenoid.............. 8Wa-30-31
Fuel Pump Module............. 8Wa-30-30, 4, 5
Fuel Pump Relay.............. 8Wa-30-4, 2, 3, 5
Fuse 2........................... 8Wa-30-23
Fuse 6................... 8Wa-30-24, 28, 31, 2Component Page
Fuse 10.......................... 8Wa-30-35
Fuse 11.......................... 8Wa-30-35
Fuse 12....................... 8Wa-30-31, 33
Fuse 15...................... 8Wa-30-25, 2, 3
Fuse 16...... 8Wa-30-13, 14, 15, 24, 30, 34, 35, 16
Fuse 21.......................... 8Wa-30-34
Fuse 24...................... 8Wa-30-31, 2, 3
Fuse 26.................. 8Wa-30-18, 24, 17, 2
Fuse 28.......................... 8Wa-30-13
G100.................... 8Wa-30-19, 27, 17, 3
G101............................ 8Wa-30-23
G103................. 8Wa-30-15, 23, 31, 34, 16
G104............................ 8Wa-30-27
G111 ............................ 8Wa-30-31
G112 .......................... 8Wa-30-8, 23
G320........................... 8Wa-30-4, 5
Generator.................. 8Wa-30-24, 4, 3, 5
Glow Plug Assembly................ 8Wa-30-35
Glow Plug Relay No. 1.............. 8Wa-30-35
Glow Plug Relay No. 2.............. 8Wa-30-35
Idle Air Control Motor............ 8Wa-30-21, 22
Ignition Switch.................... 8Wa-30-32
Intake Air Temperature Sensor..... 8Wa-30-11, 12
Junction Block........... 8Wa-30-25, 31, 33, 2, 3
Knock Sensor...................... 8Wa-30-8
Leak Detection Pump.............. 8Wa-30-4, 5
Left Speed Control Switch.......... 8Wa-30-33, 7
Manifold Absolute Pressure Sensor . . 8Wa-30-11, 12
Oxygen Sensor 1/1 Upstream...... 8Wa-30-14, 15
Oxygen Sensor 1/2 Downstream . 8Wa-30-13, 14, 15
Oxygen Sensor 2/1 Upstream......... 8Wa-30-16
Oxygen Sensor 2/2 Downstream.... 8Wa-30-13, 16
Oxygen Sensor Downstream Relay . . 8Wa-30-13, 15,
16
Power Distribution Center . . 8Wa-30-13, 14, 15, 23,
24, 28, 30, 31, 34, 35, 16, 17, 2, 3
Power Steering Pressure Switch....... 8Wa-30-23
Powertrain Control Module . . . 8Wa-30-10, 13, 20, 8,
11, 14, 15, 18, 19, 21, 9, 23, 4, 12, 16, 17, 2, 22, 3,
6, 7, 5
Radiator Fan Motor................. 8Wa-30-23
Radiator Fan Relay................. 8Wa-30-23
Right Speed Control Switch......... 8Wa-30-33, 7
Shifter Assembly................. 8Wa-30-8, 32
Speed Control Servo................. 8Wa-30-8
Starter Motor Relay................ 8Wa-30-13
Throttle Position Sensor.......... 8Wa-30-21, 22
Transfer Case Position Sensor.... 8Wa-30-9, 23, 32
Transmission Control Module . . 8Wa-30-10, 8, 22, 6
Transmission Solenoid/Trs Assembly.... 8Wa-30-10
Water In Fuel Sensor............... 8Wa-30-29
KJ8W-30 FUEL/IGNITION SYSTEM8Wa-30-1

8W-40 INSTRUMENT CLUSTER
Component Page
Airbag Control Module............. 8Wa-40-4, 8
Body Control Module........... 8Wa-40-3, 4, 5, 8
Controller Antilock Brake............. 8Wa-40-6
Data Link Connector................. 8Wa-40-4
Diagnostic Junction Port...... 8Wa-40-4, 5, 6, 7, 8
Driver Seat Belt Switch.............. 8Wa-40-8
Engine Control Module............... 8Wa-40-6
Engine Coolant Level Sensor.......... 8Wa-40-3
Fuse 9............................ 8Wa-40-3
Fuse 13........................... 8Wa-40-2
Fuse 34........................... 8Wa-40-2
G103............................. 8Wa-40-3Component Page
G111 ............................. 8Wa-40-3
G202........................... 8Wa-40-2, 3
Hazard Switch/Combination Flasher..... 8Wa-40-3
Instrument Cluster........ 8Wa-40-2, 3, 4, 5, 7, 8
Junction Block.................... 8Wa-40-2, 3
Park Brake Switch.................. 8Wa-40-5
Park Lamp Relay................... 8Wa-40-3
Passenger Seat Belt Switch............ 8Wa-40-8
Powertrain Control Module............ 8Wa-40-6
Red Brake Warning Indicator Switch.... 8Wa-40-3
Transmission Control Module.......... 8Wa-40-6
Washer Fluid Level Switch............ 8Wa-40-2
KJ8W-40 INSTRUMENT CLUSTER8Wa-40-1

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