radiator JEEP LIBERTY 2002 KJ / 1.G Repair Manual

NOTE: Individual channels cannot be erased. Eras-
ing the transmitter codes will erase ALL pro-
grammed codes.
STANDARD PROCEDURE - SETTING
TRANSMITTER CODES
(1) Turn off the engine.
(2) Erase the factory test codes by pressing but-
tons 1 and 3. Release the buttons when the two
green lights begin to flash (about 20 seconds).
(3) Choose one of the three buttons to train. Place
the hand-held transmitter within one inch of the uni-
versal transmitter and push the buttons on both
transmitters. The green dot below the house symbol
will begin to flash slowly.
(4) When the red light on the universal transmit-
ter begins to flash rapidly (this may take as long as
60 seconds), release both buttons. Your universal
transmitter is now ªtrainedº. To train the other but-
tons, repeat Step 3 and Step 4. Be sure to keep your
hand-held transmitter in case you need to retrain the
universal transmitter.
AMBIENT TEMP SENSOR
DESCRIPTION
Ambient air temperature is monitored by the Com-
pass Mini-Trip Computer (CMTC) through ambient
temperature sensor messages received from the Body
Control Module (BCM) over the Programmable Com-
munications Interface (PCI) data bus network. The
BCM receives a hard wired input from the ambient
temperature sensor. The ambient temperature sensor
(Fig. 8) is a variable resistor mounted in front the
radiator, behind the grille, near the center of the
vehicle.
Refer toBody Control Modulein Electronic Con-
trol Modules. For complete circuit diagrams, refer to
the appropriate wiring information. The ambient
temperature sensor cannot be adjusted or repaired
and, if faulty or damaged, it must be replaced.
OPERATION
The ambient temperature sensor is a variable
resistor that operates on a five-volt reference signal
sent to it by the BCM. The resistance in the sensor
changes as temperature changes, changing the tem-
perature sensor signal circuit voltage to the BCM.
Based upon the resistance in the sensor, the BCM
senses a specific voltage on the temperature sensor
signal circuit, which it is programmed to correspond
to a specific temperature. The BCM then sends the
proper ambient temperature messages to the CMTC
over the PCI data bus.
The thermometer function is supported by the
ambient temperature sensor, a wiring circuit, the
Body Control Module (BCM), the Programmable
Communications Interface (PCI) data bus, and a por-
tion of the Compass Mini-Trip Computer module.
The ambient temperature sensor circuit can also be
diagnosed by referring toDiagnosis and Testing -
Ambient Temperature Sensor, and Diagnosis
and Testing - Ambient Temperature Sensor Cir-
cuit. If the temperature sensor and circuit are con-
firmed to be OK, but the temperature display is
inoperative or incorrect, refer toDiagnosis and
Testing - Compass Mini-Trip Computerin this
section. For complete circuit diagrams, refer to the
appropriate wiring information.
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - AMBIENT
TEMPERATURE SENSOR
(1) Turn the ignition switch to the Off position.
Disconnect and isolate the battery negative cable.
Disconnect the ambient temperature sensor wire har-
ness connector.
(2) Measure the resistance of the ambient temper-
ature sensor. At ±40É C (±40É F), the sensor resis-
tance is 336 kilohms. At 55É C (140É F), the sensor
resistance is 2.488 kilohms. The sensor resistance
should read between these two values. If OK, refer to
Diagnosis and Testing - Ambient Temperature
Sensor Circuitin this group. If not OK, replace the
faulty ambient temperature sensor.
DIAGNOSIS AND TESTING - AMBIENT
TEMPERATURE SENSOR CIRCUIT
(1) Turn the ignition switch to the Off position.
Disconnect and isolate the battery negative cable.
Disconnect the ambient temperature sensor wire har-
ness connector and the Body Control Module wire
harness connector.
(2) Connect a jumper wire between the two termi-
nals in the body half of the ambient temperature sen-
sor wire harness connector.
Fig. 8 Ambient Temperature Sensor
KJMESSAGE SYSTEMS 8M - 9
UNIVERSAL TRANSMITTER (Continued)

is located on the back side of each vertical member of
the radiator support.
²Passenger Airbag- The passenger airbag is
located on the instrument panel, beneath the passen-
ger airbag door on the instrument panel above the
glove box on the passenger side of the vehicle.
²Passenger Knee Blocker- The passenger knee
blocker is a structural reinforcement that is integral
to and concealed within the glove box door.
²Seat Belt Tensioner- The seat belt tensioner
is integral to the driver side front seat belt retractor
unit on vehicles equipped with dual front airbags.
²Side Impact Airbag Control Module-Two
Side Impact Airbag Control Modules (SIACM) are
used on vehicles with the optional side curtain air-
bags, one left side and one right side. One SIACM is
located behind the B-pillar trim near the base of each
B-pillar.
²Side Curtain Airbag- In vehicles equipped
with this option, a side curtain airbag is located on
each inside roof side rail above the headliner, and
extends from the A-pillar to just beyond the C-pillar.
The ACM, both SIACMs, and the EMIC each con-
tain a central processing unit and programming that
allow them to communicate with each other using
the Programmable Communication Interface (PCI)
data bus network. This method of communication is
used by the ACM for control of the airbag indicator
on all models equipped with dual front airbags.
(Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/COMMUNICATION - DESCRIP-
TION).
Hard wired circuitry connects the supplemental
restraint system components to each other through
the electrical system of the vehicle. These hard wired
circuits are integral to several wire harnesses, which
are routed throughout the vehicle and retained by
many different methods. These circuits may be con-
nected to each other, to the vehicle electrical system,
and to the supplemental restraint system compo-
nents through the use of a combination of soldered
splices, splice block connectors, and many different
types of wire harness terminal connectors and insu-
lators. Refer to the appropriate wiring information.
The wiring information includes wiring diagrams,
proper wire and connector repair procedures, further
details on wire harness routing and retention, as well
as pin-out and location views for the various wire
harness connectors, splices and grounds.
OPERATION
ACTIVE RESTRAINTS The primary passenger
restraints in this or any other vehicle are the stan-
dard equipment factory-installed seat belts. Seat
belts are referred to as an active restraint because
the vehicle occupants are required to physically fas-ten and properly adjust these restraints in order to
benefit from them. See the owner's manual in the
vehicle glove box for more information on the fea-
tures, use and operation of all of the factory-installed
active restraints.
PASSIVE RESTRAINTS The passive restraints
system is referred to as a supplemental restraint sys-
tem because they were designed and are intended to
enhance the protection for the vehicle occupants of
the vehicleonlywhen used in conjunction with the
seat belts. They are referred to as passive systems
because the vehicle occupants are not required to do
anything to make them operate; however, the vehicle
occupants must be wearing their seat belts in order
to obtain the maximum safety benefit from the facto-
ry-installed supplemental restraint systems.
The supplemental restraint system electrical cir-
cuits are continuously monitored and controlled by a
microprocessor and software contained within the
Airbag Control Module (ACM) and, on vehicles
equipped with the side curtain airbags, both Side
Impact Airbag Control Modules (SIACM). An airbag
indicator in the ElectroMechanical Instrument Clus-
ter (EMIC) illuminates for about seven seconds as a
bulb test each time the ignition switch is turned to
the On or Start positions. Following the bulb test,
the airbag indicator is turned on or off by the ACM
to indicate the status of the supplemental restraint
system. If the airbag indicator comes on at any time
other than during the bulb test, it indicates that
there is a problem in the supplemental restraint sys-
tem electrical circuits. Such a problem may cause air-
bags not to deploy when required, or to deploy when
not required.
Deployment of the supplemental restraints
depends upon the angle and severity of an impact.
Deployment is not based upon vehicle speed; rather,
deployment is based upon the rate of deceleration as
measured by the forces of gravity (G force) upon the
impact sensors. When an impact is severe enough,
the microprocessor in the ACM or the SIACM signals
the inflator unit of the airbag module to deploy the
airbag. The seat belt tensioner is provided with a
deployment signal by the ACM in conjunction with
the driver airbag. During a frontal vehicle impact,
the knee blockers work in concert with properly fas-
tened and adjusted seat belts to restrain both the
driver and the front seat passenger in the proper
position for an airbag deployment. The knee blockers
also absorb and distribute the crash energy from the
driver and the front seat passenger to the structure
of the instrument panel. The seat belt tensioner
removes the slack from the driver side front seat belt
to provide further assurance that the driver is prop-
erly positioned and restrained for an airbag deploy-
ment.
8O - 4 RESTRAINTSKJ
RESTRAINTS (Continued)

The ACM housing also has an integral ground lug
with a tapped hole that protrudes from the lower left
rear corner of the unit. This lug provides a case
ground to the ACM when a ground screw is installed
through the left side of the mounting bracket. Two
molded plastic electrical connector receptacles exit
the right side of the ACM housing. The smaller of the
two receptacles contains twelve terminal pins, while
the larger one contains twenty-three. These terminal
pins connect the ACM to the vehicle electrical system
through two dedicated take outs and connectors of
the instrument panel wire harness.
A molded rubber protective cover is installed
loosely over the ACM to protect the unit from con-
densation or coolant leaking from a damaged or
faulty heater-air conditioner unit housing. An inte-
gral flange on the left side of the cover is secured to
the floor panel transmission tunnel with a short
piece of double-faced tape as an assembly aid during
the manufacturing process, but this tape does not
require replacement following service removal.
The impact sensor and safing sensor internal to
the ACM are calibrated for the specific vehicle, and
are only serviced as a unit with the ACM. The ACM
cannot be repaired or adjusted and, if damaged or
faulty, it must be replaced. The ACM cover is avail-
able for separate service replacement.
OPERATION
The microprocessor in the Airbag Control Module
(ACM) contains the front supplemental restraint sys-
tem logic circuits and controls all of the front supple-
mental restraint system components. The ACM uses
On-Board Diagnostics (OBD) and can communicate
with other electronic modules in the vehicle as well
as with the DRBIIItscan tool using the Programma-
ble Communications Interface (PCI) data bus net-
work. This method of communication is used for
control of the airbag indicator in the ElectroMechani-
cal Instrument Cluster (EMIC) and for supplemental
restraint system diagnosis and testing through the
16-way data link connector located on the driver side
lower edge of the instrument panel. (Refer to 8 -
ELECTRICAL/INSTRUMENT CLUSTER/AIRBAG
INDICATOR - OPERATION).
The ACM microprocessor continuously monitors all
of the front supplemental restraint system electrical
circuits to determine the system readiness. If the
ACM detects a monitored system fault, it sets an
active and stored Diagnostic Trouble Code (DTC) and
sends electronic messages to the EMIC over the PCI
data bus to turn on the airbag indicator. An active
fault only remains for the duration of the fault or in
some cases the duration of the current ignition
switch cycle, while a stored fault causes a DTC to be
stored in memory by the ACM. For some DTCs, if afault does not recur for a number of ignition cycles,
the ACM will automatically erase the stored DTC.
For other internal faults, the stored DTC is latched
forever.
On models equipped with optional side curtain air-
bags, the ACM communicates with both the left and
right Side Impact Airbag Control Modules (SIACM)
over the PCI data bus. The SIACM notifies the ACM
when it has detected a monitored system fault and
stored a DTC in memory for its respective side cur-
tain airbag system, and the ACM sets a DTC and
controls the airbag indicator operation accordingly.
The ACM also monitors a Hall effect-type seat belt
switch located in the buckle of each front seat belt to
determine whether the seatbelts are buckled, and
provides an input to the EMIC over the PCI data bus
to control the seatbelt indicator operation based upon
the status of the driver side front seat belt switch.
The ACM receives battery current through two cir-
cuits; a fused ignition switch output (run) circuit
through a fuse in the Junction Block (JB), and a
fused ignition switch output (run-start) circuit
through a second fuse in the JB. The ACM has a case
ground through a lug on the bottom of the ACM
housing that is secured with a ground screw to the
left side of the ACM mounting bracket. The ACM
also receives a power ground through a ground cir-
cuit and take out of the instrument panel wire har-
ness. This take out has a single eyelet terminal
connector that is secured by a second ground screw
to the left side of the ACM mounting bracket. These
connections allow the ACM to be operational when-
ever the ignition switch is in the Start or On posi-
tions. The ACM also contains an energy-storage
capacitor. When the ignition switch is in the Start or
On positions, this capacitor is continually being
charged with enough electrical energy to deploy the
airbags for up to one second following a battery dis-
connect or failure. The purpose of the capacitor is to
provide backup supplemental restraint system pro-
tection in case there is a loss of battery current sup-
ply to the ACM during an impact.
Two sensors are contained within the ACM, an
electronic impact sensor and a safing sensor. The
ACM also monitors inputs from two remote front
impact sensors located on the back of the right and
left vertical members of the radiator support near
the front of the vehicle. The electronic impact sensors
are accelerometers that sense the rate of vehicle
deceleration, which provides verification of the direc-
tion and severity of an impact. The safing sensor is
an electromechanical sensor within the ACM that
provides an additional logic input to the ACM micro-
processor. The safing sensor is a normally open
switch that is used to verify the need for an airbag
deployment by detecting impact energy of a lesser
8O - 10 RESTRAINTSKJ
AIRBAG CONTROL MODULE (Continued)

FRONT IMPACT SENSOR
DESCRIPTION
Two front impact sensors are used on this model,
one each for the left and right sides of the vehicle
(Fig. 17). These sensors are mounted remotely from
the impact sensor that is internal to the Airbag Con-
trol Module (ACM). Each front sensor is secured with
two screws to the backs of the right and left vertical
members of the radiator support within the engine
compartment. The sensor housing has an integral
connector receptacle and two integral mounting
points each with a metal sleeve to provide crush pro-
tection.
The right and left front impact sensors are identi-
cal in construction and calibration with two excep-
tions:
²On models equipped with an optional 2.4L gaso-
line engine, the left front impact sensor includes a
shim that moves the sensor three millimeters toward
the rear of the vehicle on the left vertical member of
the radiator support for additional clearance that is
required for that application.
²On models equipped with an optional diesel
engine, the left front impact sensor includes a
stamped metal mounting bracket that rotates theconnector receptacle end of the sensor toward the
outboard side of the vehicle for additional clearance
that is required for that application.
A cavity in the center of the molded black plastic
impact sensor housing contains the electronic cir-
cuitry of the sensor which includes an electronic com-
munication chip and an electronic impact sensor.
Potting material fills the cavity to seal and protect
the internal electronic circuitry and components. The
front impact sensors are each connected to the vehi-
cle electrical system through a dedicated take out
and connector of the headlamp and dash wire har-
ness.
The impact sensors cannot be repaired or adjusted
and, if damaged or faulty, they must be replaced. The
mounting bracket for the left front impact sensor on
models with a diesel engine is serviced as a unit with
that sensor.
OPERATION
The front impact sensors are electronic accelerom-
eters that sense the rate of vehicle deceleration,
which provides verification of the direction and sever-
ity of an impact. Each sensor also contains an elec-
tronic communication chip that allows the unit to
communicate the sensor status as well as sensor
fault information to the microprocessor in the Airbag
Control Module (ACM). The ACM microprocessor con-
tinuously monitors all of the front passive restraint
system electrical circuits to determine the system
readiness. If the ACM detects a monitored system
fault, it sets a Diagnostic Trouble Code (DTC) and
controls the airbag indicator operation accordingly.
The impact sensors each receive battery current and
ground through dedicated left and right sensor plus and
minus circuits from the ACM. The impact sensors and
the ACM communicate by modulating the voltage in the
sensor plus circuit. The hard wired circuits between the
front impact sensors and the ACM may be diagnosed
and tested using conventional diagnostic tools and pro-
cedures. However, conventional diagnostic methods will
not prove conclusive in the diagnosis of the ACM or the
impact sensors. The most reliable, efficient, and accu-
rate means to diagnose the impact sensors, the ACM,
and the electronic message communication between the
sensors and the ACM requires the use of a DRBIIIt
scan tool. Refer to the appropriate diagnostic informa-
tion.
Fig. 17 Front Impact Sensor
1 - SENSOR
2 - CONNECTOR RECEPTACLE
KJRESTRAINTS 8O - 21

REMOVAL
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE SUPPLEMENTAL RESTRAINT
SYSTEM BEFORE ATTEMPTING ANY STEERING
WHEEL, STEERING COLUMN, DRIVER AIRBAG,
PASSENGER AIRBAG, SEAT BELT TENSIONER,
FRONT IMPACT SENSORS, SIDE CURTAIN AIRBAG,
OR INSTRUMENT PANEL COMPONENT DIAGNOSIS
OR SERVICE. DISCONNECT AND ISOLATE THE
BATTERY NEGATIVE (GROUND) CABLE, THEN
WAIT TWO MINUTES FOR THE SYSTEM CAPACI-
TOR TO DISCHARGE BEFORE PERFORMING FUR-
THER DIAGNOSIS OR SERVICE. THIS IS THE ONLY
SURE WAY TO DISABLE THE SUPPLEMENTAL
RESTRAINT SYSTEM. FAILURE TO TAKE THE
PROPER PRECAUTIONS COULD RESULT IN ACCI-
DENTAL AIRBAG DEPLOYMENT AND POSSIBLE
PERSONAL INJURY.
WARNING: THE FRONT IMPACT SENSOR ENABLES
THE SYSTEM TO DEPLOY THE FRONT SUPPLE-
MENTAL RESTRAINTS. NEVER STRIKE OR DROP
THE FRONT IMPACT SENSOR, AS IT CAN DAMAGE
THE IMPACT SENSOR OR AFFECT ITS CALIBRA-
TION. IF AN IMPACT SENSOR IS ACCIDENTALLY
DROPPED DURING SERVICE, THE SENSOR MUST
BE SCRAPPED AND REPLACED WITH A NEW UNIT.
FAILURE TO OBSERVE THIS WARNING COULD
RESULT IN ACCIDENTAL, INCOMPLETE, OR
IMPROPER FRONT SUPPLEMENTAL RESTRAINT
DEPLOYMENT AND POSSIBLE OCCUPANT INJU-
RIES.
(1) Disconnect and isolate the battery negative
cable. Wait two minutes for the system capacitor to
discharge before further service.
(2) Remove the two screws that secure the right or
left front impact sensor, left impact sensor and shim
(2.4L engine only), or left impact sensor and bracket
unit (diesel engine only) to the back of the right or
left radiator support vertical member (Fig. 18).
(3) Disconnect the headlamp and dash wire har-
ness connector for the front impact sensor from the
sensor connector receptacle.
(4) Remove the right or left front impact sensor,
left impact sensor and shim (2.4L engine only), or left
impact sensor and bracket unit (diesel engine only)
from the engine compartment.
INSTALLATION
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE SUPPLEMENTAL RESTRAINT
SYSTEM BEFORE ATTEMPTING ANY STEERING
WHEEL, STEERING COLUMN, DRIVER AIRBAG,PASSENGER AIRBAG, SEAT BELT TENSIONER,
FRONT IMPACT SENSORS, SIDE CURTAIN AIRBAG,
OR INSTRUMENT PANEL COMPONENT DIAGNOSIS
OR SERVICE. DISCONNECT AND ISOLATE THE
BATTERY NEGATIVE (GROUND) CABLE, THEN
WAIT TWO MINUTES FOR THE SYSTEM CAPACI-
TOR TO DISCHARGE BEFORE PERFORMING FUR-
THER DIAGNOSIS OR SERVICE. THIS IS THE ONLY
SURE WAY TO DISABLE THE SUPPLEMENTAL
RESTRAINT SYSTEM. FAILURE TO TAKE THE
PROPER PRECAUTIONS COULD RESULT IN ACCI-
DENTAL AIRBAG DEPLOYMENT AND POSSIBLE
PERSONAL INJURY.
WARNING: THE FRONT IMPACT SENSOR ENABLES
THE SYSTEM TO DEPLOY THE FRONT SUPPLE-
MENTAL RESTRAINTS. NEVER STRIKE OR DROP
THE FRONT IMPACT SENSOR, AS IT CAN DAMAGE
THE IMPACT SENSOR OR AFFECT ITS CALIBRA-
TION. IF AN IMPACT SENSOR IS ACCIDENTALLY
DROPPED DURING SERVICE, THE SENSOR MUST
BE SCRAPPED AND REPLACED WITH A NEW UNIT.
FAILURE TO OBSERVE THIS WARNING COULD
RESULT IN ACCIDENTAL, INCOMPLETE, OR
IMPROPER FRONT SUPPLEMENTAL RESTRAINT
DEPLOYMENT AND POSSIBLE OCCUPANT INJU-
RIES.
(1) Position the right or left front impact sensor,
left impact sensor and shim (2.4L engine only), or left
Fig. 18 Front Impact Sensor Remove/Install
1 - RADIATOR SUPPORT
2 - IMPACT SENSOR OR LEFT IMPACT SENSOR & SHIM (2.4L
ENGINE ONLY)
3 - SCREW (4)
4 - WIRE HARNESS CONNECTOR
5 - LEFT IMPACT SENSOR & BRACKET (DIESEL ENGINE ONLY)
8O - 22 RESTRAINTSKJ
FRONT IMPACT SENSOR (Continued)

impact sensor and bracket unit (diesel engine only)
into the engine compartment (Fig. 18).
(2) Reconnect the headlamp and dash wire harness
connector for the front impact sensor to the sensor
connector receptacle.
(3) Position the right or left front impact sensor,
left impact sensor and shim (2.4L engine only), or left
impact sensor and bracket unit (diesel engine only)
onto the back of the right or left radiator support
vertical member.
(4) Loosely install the upper screw that secures
the right or left front impact sensor, left impact sen-
sor and shim (2.4L engine only), or left impact sensor
and bracket unit (diesel engine only) to the back of
the right or left radiator support vertical member.
(5)
Install and tighten the lower screw that secures
the right or left front impact sensor, left impact sensor
and shim (2.4L engine only), or left impact sensor and
bracket unit (diesel engine only) to the back of the right
or left radiator support vertical member. Tighten the
screw to 7 N´m (65 in. lbs.).
(6) Tighten the upper screw that secures the right
or left front impact sensor, left impact sensor and
shim (2.4L engine only), or left impact sensor and
bracket unit (diesel engine only) to the back of the
right or left radiator support vertical member.
Tighten the screw to 7 N´m (65 in. lbs.).
(7) Do not reconnect the battery negative cable at
this time. The airbag system verification test proce-
dure should be performed following service of any
airbag system component. (Refer to 8 - ELECTRI-
CAL/RESTRAINTS - STANDARD PROCEDURE -
VERIFICATION TEST).
FRONT SEAT BELT &
RETRACTOR
REMOVAL
WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS,
DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM
BEFORE ATTEMPTING ANY STEERING WHEEL,
STEERING COLUMN, DRIVER AIRBAG, PASSENGER
AIRBAG, SEAT BELT TENSIONER, FRONT IMPACT
SENSORS, SIDE CURTAIN AIRBAG, OR INSTRUMENT
PANEL COMPONENT DIAGNOSIS OR SERVICE. DIS-
CONNECT AND ISOLATE THE BATTERY NEGATIVE
(GROUND) CABLE, THEN WAIT TWO MINUTES FOR
THE SYSTEM CAPACITOR TO DISCHARGE BEFORE
PERFORMING FURTHER DIAGNOSIS OR SERVICE.
THIS IS THE ONLY SURE WAY TO DISABLE THE SUP-
PLEMENTAL RESTRAINT SYSTEM. FAILURE TO TAKE
THE PROPER PRECAUTIONS COULD RESULT IN
ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE
PERSONAL INJURY.
WARNING: DURING AND FOLLOWING ANY SEAT
BELT SERVICE, CAREFULLY INSPECT ALL SEAT
BELTS, BUCKLES, MOUNTING HARDWARE, AND
RETRACTORS FOR PROPER INSTALLATION,
OPERATION, OR DAMAGE. REPLACE ANY BELT
THAT IS CUT, FRAYED, OR TORN. STRAIGHTEN
ANY BELT THAT IS TWISTED. TIGHTEN ANY
LOOSE FASTENERS. REPLACE ANY BELT THAT
HAS A DAMAGED OR INOPERATIVE BUCKLE OR
RETRACTOR. REPLACE ANY BELT THAT HAS A
BENT OR DAMAGED LATCH PLATE OR ANCHOR
PLATE. NEVER ATTEMPT TO REPAIR A SEAT BELT
COMPONENT. ALWAYS REPLACE DAMAGED OR
FAULTY SEAT BELT COMPONENTS WITH THE COR-
RECT, NEW AND UNUSED REPLACEMENT PARTS
LISTED IN THE MOPAR PARTS CATALOG.
(1) Adjust the front seat to its most forward posi-
tion for easiest access to the front seat belt lower
anchor and the B-pillar trim.
(2) Disconnect and isolate the battery negative
cable. Wait two minutes for the system capacitor to
discharge before further service.
(3) Using a trim stick or another suitable wide
flat-bladed tool, gently pry the plug that covers the
front seat belt lower anchor screw to remove it from
the rear of the outboard seat side shield (Fig. 19).
Fig. 19 Front Seat Belt Lower Anchor Remove/
Install
1 - FRONT SEAT
2 - LOWER ANCHOR
3 - SCREW
4 - PLUG
KJRESTRAINTS 8O - 23
FRONT IMPACT SENSOR (Continued)

WASHER RESERVOIR
DESCRIPTION
A single washer fluid reservoir is used for both the
front and rear washer systems (Fig. 22). The molded
plastic washer fluid reservoir is mounted on the out-
board side of the right front frame rail in front of the
right front wheel, where it is concealed by the right
front wheel house splash shield. The only visible
component of the washer reservoir is the filler neck
and cap unit, which extends through a hole in the
right front wheel house extension panel into the
engine compartment. A bright yellow plastic filler cap
with an integral bail strap and filler neck mounting
bracket is labeled with an International Control and
Display Symbol icon for ªWindshield Washerº and the
text ªWasher Fluid Onlyº molded into it. The cap
snaps over the open end of the filler neck.
There is a dedicated hole on the outboard side of
the reservoir provided for the mounting of the
washer pump/motor unit, and another dedicated hole
on the rear of the reservoir for the washer fluid level
switch. A snap post receptacle molded into the reser-
voir allows for mounting of the washer pump without
the use of fasteners. The reservoir also features inte-
gral hose routing troughs on its outboard side and
integral routing clips along its top. The washer res-
ervoir is secured to the outboard side of the right
front frame rail by two screws and an integral
molded tab that engages in a slot in the right front
frame rail. Another screw secures the reservoir fillerneck to the upper radiator crossmember in the front
of the engine compartment. The right front fender
wheel house splash shield must be removed to access
the washer reservoir for service.
OPERATION
The washer fluid reservoir provides a secure,
on-vehicle storage location for a large reserve of
washer fluid for operation of the front and rear
washer systems. The washer reservoir filler neck pro-
vides a clearly marked and readily accessible point
from which to add washer fluid to the reservoir. The
washer/pump motor unit is located in a sump area
near the front of the reservoir to be certain that
washer fluid will be available to the pump as the
fluid level in the reservoir becomes depleted. The
washer pump/motor unit is mounted in the lowest
position in the sump. The washer fluid level switch is
mounted just above the sump area of the reservoir so
that there will be adequate warning to the vehicle
operator that the washer fluid level is low, before the
washer system will no longer operate.
REMOVAL
(1) Turn the front wheels full lock to the right.
(2) Unlatch and open the hood.
(3) Disconnect and isolate the battery negative
cable.
(4) Remove the air cleaner housing from the top of
the right front fender wheel house. (Refer to 9 -
ENGINE/AIR INTAKE SYSTEM/AIR CLEANER
ELEMENT - REMOVAL).
(5) Remove the screw that secures the washer res-
ervoir filler neck support to upper radiator cross-
member (Fig. 23).
Fig. 22 Washer Reservoir
1 - CAP
2 - RESERVOIR
3- SNAP POST RECEPTACLE
4 - FRONT HOSE TROUGH
5 - WASHER PUMP HOLE
6 - REAR HOSE TROUGH
7 - HOOK
Fig. 23 Washer Reservoir Cap Remove/Install
1 - SCREW (1)
2 - CAP
3 - UPPER RADIATOR CROSSMEMBER
KJFRONT WIPERS/WASHERS 8R - 21

of the washer pump/motor unit is connected to the
front nipple.
(10) Engage the ªWº clip that secures the front
bumper fascia to the front bumper support. This clip
is located behind the bumper support and below the
right front lamp unit.
(11) Reinstall the splash shield into the right front
fender wheel house. (Refer to 23 - BODY/EXTERIOR/
WHEELHOUSE SPLASH SHIELD - INSTALLA-
TION).
(12) Lower the vehicle.
(13) Install and tighten the screw that secures the
washer reservoir filler neck support to upper radiator
crossmember (Fig. 23). Tighten the screw to 7 N´m
(65 in. lbs.).
(14) Reinstall the air cleaner housing onto the top
of the right front fender wheel house. (Refer to 9 -
ENGINE/AIR INTAKE SYSTEM/AIR CLEANER
ELEMENT - INSTALLATION).
(15) Refill the washer reservoir with the washer
fluid drained from the reservoir during the removal
procedure.
(16) Reconnect the battery negative cable.
WIPER HIGH/LOW RELAY
DESCRIPTION
The wiper high/low relay is located in the Power
Distribution Center (PDC) in the engine compart-
ment near the battery. The wiper high/low relay is a
conventional International Standards Organization
(ISO) micro relay (Fig. 25). Relays conforming to theISO specifications have common physical dimensions,
current capacities, terminal patterns, and terminal
functions. The relay is contained within a small, rect-
angular, molded plastic housing and is connected to
all of the required inputs and outputs by five integral
male spade-type terminals that extend from the bot-
tom of the relay base.
The wiper high/low relay cannot be adjusted or
repaired and, if faulty or damaged, the unit must be
replaced.
OPERATION
The wiper high/low relay is an electromechanical
switch that uses a low current input from the Body
Control Module (BCM) to control a high current out-
put to the front wiper motor. The movable common
feed contact point is held against the fixed normally
closed contact point by spring pressure. When the
relay coil is energized, an electromagnetic field is
produced by the coil windings. This electromagnetic
field draws the movable relay contact point away
from the fixed normally closed contact point, and
holds it against the fixed normally open contact
point. When the relay coil is de-energized, spring
pressure returns the movable contact point back
against the fixed normally closed contact point. A
resistor is connected in parallel with the relay coil in
the relay, and helps to dissipate voltage spikes and
electromagnetic interference that can be generated as
the electromagnetic field of the relay coil collapses.
The wiper high/low relay terminals are connected
to the vehicle electrical system through a connector
receptacle in the Power Distribution Center (PDC).
The inputs and outputs of the wiper high/low relay
include:
²Common Feed Terminal- The common feed
terminal (30) is connected to the output of the wiper
on/off relay at all times through the wiper on/off
relay output circuit.
²Coil Ground Terminal- The coil ground termi-
nal (85) is connected to a control output of the Body
Control Module (BCM) through a front wiper high/
low relay control circuit. The BCM controls front
wiper motor operation by controlling a ground path
through this circuit.
²Coil Battery Terminal- The coil battery ter-
minal (86) receives battery current at all times from
a circuit breaker in the Junction Block (JB) through
a fused ignition switch output (run-acc) circuit.
²Normally Open Terminal- The normally open
terminal (87) is connected to the high speed brush of
the front wiper motor through a front wiper high/low
relay high speed output circuit, and is connected to
the high speed brush whenever the relay is ener-
gized.
Fig. 25 ISO Micro Relay
30 - COMMON FEED
85 - COIL GROUND
86 - COIL BATTERY
87 - NORMALLY OPEN
87A - NORMALLY CLOSED
KJFRONT WIPERS/WASHERS 8R - 23
WASHER RESERVOIR (Continued)

Component Page
Low Beam Relay..................... 8Wa-50
Manifold Absolute Pressure Sensor....... 8Wa-30
Multi-Function Switch........... 8Wa-50, 52, 53
Output Speed Sensor.................. 8Wa-31
Overhead Map/Reading Lamp........... 8Wa-44
Oxygen Sensors...................... 8Wa-30
Oxygen Sensor Downstream Relay........ 8Wa-30
Park Brake Switch.................... 8Wa-40
Park Lamp Relay..................... 8Wa-50
Park/Turn Signal Lamps............ 8Wa-50, 52
Passenger Airbag..................... 8Wa-43
Passenger Door Unlock Relay........... 8Wa-61
Passenger Seat Belt Switch............. 8Wa-40
Position Lamps...................... 8Wa-50
Power Distribution Center.............. 8Wa-10
Power Mirrors....................... 8Wa-62
Power Outlet........................ 8Wa-41
Power Seats......................... 8Wa-63
Power Steering Pressure Switch......... 8Wa-30
Power Windows...................... 8Wa-60
Powertrain Control Module............. 8Wa-30
Radiator Fans....................... 8Wa-30
Radio Choke......................... 8Wa-47
Radio.............................. 8Wa-47
Rear Fog Lamp Relay................. 8Wa-51
Rear Power Outlet.................... 8Wa-41
Rear Power Window Switch............. 8Wa-60
Rear Wheel Speed Sensor.............. 8Wa-35
Rear Window Defogger................. 8Wa-48
Rear Wiper Motor.................... 8Wa-53
Red Brake Warning Indicator Switch...... 8Wa-40Component Page
Remote Keyless Entry Module........... 8Wa-45
Remote Radio Switches................ 8Wa-47
Splices............................. 8Wa-10
Sentry Key Immobilizer Module.......... 8Wa-39
Shifter Assembly..................... 8Wa-31
Side Impact Airbag Control Modules...... 8Wa-43
Side Marker Lamps................ 8Wa-50, 52
Side Repeater Lamps............... 8Wa-50, 52
Siren.............................. 8Wa-49
Speed Control Servo................... 8Wa-33
Speed Control Switches................ 8Wa-33
Starter Motor Relay................... 8Wa-21
Starter Motor........................ 8Wa-21
Sunroof............................ 8Wa-64
Tail/Stop Lamps...................... 8Wa-51
Tailgate Cylinder Lock Switch........... 8Wa-61
Tailgate Flip-Up Ajar Switch............ 8Wa-61
Tailgate Lock Motor/Ajar Switch......... 8Wa-61
Throttle Position Sensor................ 8Wa-30
Trailer Tow.......................... 8Wa-54
Transfer Case Position Sensor........ 8Wa-30, 31
Transmission Control Module........... 8Wa-31
Transmission Control Relay............. 8Wa-31
Transmission Solenoid/TRS Assembly..... 8Wa-31
Visor/Vanity Lamps................... 8Wa-44
Washer Fluid Level Switch............. 8Wa-53
Washer Pump........................ 8Wa-53
Water In Fuel Sensor.................. 8Wa-30
Wheel Speed Sensors.................. 8Wa-35
Wiper High/Low Relay................. 8Wa-53
KJ8W-02 COMPONENT INDEX8Wa-02-1

8W-10 POWER DISTRIBUTION
Component Page
A/C Compressor Clutch Relay . . . 8Wa-10-11, 13, 22,
26
A/C Compressor Clutch.............. 8Wa-10-26
Auto Shut Down Relay...... 8Wa-10-10, 12, 19, 22
Battery....................... 8Wa-10-10, 12
Blower Motor Relay........... 8Wa-10-10, 12, 14
Blower Motor..................... 8Wa-10-14
Body Control Module................ 8Wa-10-23
Cabin Heater Relay........... 8Wa-10-13, 22, 26
Cabin Heater...................... 8Wa-10-26
Camshaft Position Sensor............ 8Wa-10-22
Capacitor...................... 8Wa-10-19, 21
Circuit Breaker No. 1............... 8Wa-10-16
Circuit Breaker No. 3 (JB)........... 8Wa-10-27
Clutch Interlock Switch.............. 8Wa-10-28
Clutch Switch Override Relay......... 8Wa-10-28
Coil On Plug No. 1................. 8Wa-10-21
Coil On Plug No. 2................. 8Wa-10-21
Coil On Plug No. 3................. 8Wa-10-21
Coil On Plug No. 4................. 8Wa-10-21
Coil On Plug No. 5................. 8Wa-10-21
Coil On Plug No. 6................. 8Wa-10-21
Coil Rail......................... 8Wa-10-19
Controller Antilock Brake . 8Wa-10-10, 11, 12, 13, 14
Daytime Running Lamp Relay........ 8Wa-10-16
Defogger Relay.................... 8Wa-10-24
EGR Solenoid..................... 8Wa-10-22
Engine Control Module.............. 8Wa-10-22
Fuel Heater Relay............... 8Wa-10-13, 18
Fuel Heater....................... 8Wa-10-18
Fuel Injector No. 1................. 8Wa-10-20
Fuel Injector No. 2................. 8Wa-10-20
Fuel Injector No. 3................. 8Wa-10-20
Fuel Injector No. 4................. 8Wa-10-20
Fuel Injector No. 5................. 8Wa-10-20
Fuel Injector No. 6................. 8Wa-10-20
Fuel Pressure Solenoid.............. 8Wa-10-22
Fuel Pump Module................. 8Wa-10-26
Fuel Pump Relay................ 8Wa-10-11, 26
Fuse 1.................. 8Wa-10-10, 12, 14, 25
Fuse 2.................. 8Wa-10-10, 12, 14, 15
Fuse 3.................. 8Wa-10-10, 12, 16, 25
Fuse 4..................... 8Wa-10-10, 12, 14
Fuse 5.................. 8Wa-10-10, 12, 17, 18
Fuse 6............... 8Wa-10-10, 12, 19, 22, 24
Fuse 7..................... 8Wa-10-10, 12, 15
Fuse 8..................... 8Wa-10-10, 12, 23
Fuse 9.................. 8Wa-10-10, 12, 13, 24
Fuse 10.............. 8Wa-10-10, 12, 13, 15, 18
Fuse 11.................... 8Wa-10-13, 15, 18
Fuse 12............ 8Wa-10-10, 11, 13, 15, 17, 18
Fuse 13............... 8Wa-10-10, 11, 13, 23, 27
Fuse 14.................... 8Wa-10-11, 13, 23
Fuse 15................. 8Wa-10-11, 13, 25, 27Component Page
Fuse 16................. 8Wa-10-19, 20, 22, 24
Fuse 17.......................... 8Wa-10-24
Fuse 18.......................... 8Wa-10-24
Fuse 19.................... 8Wa-10-11, 13, 24
Fuse 20.......................... 8Wa-10-27
Fuse 21.................... 8Wa-10-11, 13, 26
Fuse 22.......................... 8Wa-10-27
Fuse 24.................... 8Wa-10-11, 26, 29
Fuse 25................. 8Wa-10-11, 13, 14, 29
Fuse 26................. 8Wa-10-12, 19, 20, 22
Fuse 28.......................... 8Wa-10-28
Fuse 29.......................... 8Wa-10-15
Fuse 30.......................... 8Wa-10-24
Fuse 31.......................... 8Wa-10-27
Fuse 32.......................... 8Wa-10-27
Fuse 33.......................... 8Wa-10-16
Fuse 34.......................... 8Wa-10-15
Fuse 36.......................... 8Wa-10-27
Fuse 37.......................... 8Wa-10-29
Fuse 38.......................... 8Wa-10-29
Fuse 39.......................... 8Wa-10-29
Fusible Link................... 8Wa-10-10, 12
G202............................ 8Wa-10-23
Generator.................. 8Wa-10-10, 12, 22
Glow Plug Assembly................ 8Wa-10-18
Glow Plug Relay No. 1......... 8Wa-10-13, 18, 22
Glow Plug Relay No. 2......... 8Wa-10-13, 18, 22
High Beam Relay.................. 8Wa-10-16
Horn Relay....................... 8Wa-10-25
Ignition Switch . . . 8Wa-10-10, 11, 12, 13, 23, 27, 29
Junction Block . . . 8Wa-10-10, 11, 12, 13, 15, 16, 24,
25, 27, 29
Low Beam Relay................... 8Wa-10-25
Oxygen Sensor 1/1 Upstream......... 8Wa-10-19
Oxygen Sensor 1/2 Downstream.... 8Wa-10-19, 20
Oxygen Sensor 2/1 Upstream......... 8Wa-10-19
Oxygen Sensor 2/2 Downstream....... 8Wa-10-20
Oxygen Sensor Downstream Relay . . 8Wa-10-19, 20
Park Lamp Relay.................. 8Wa-10-16
Power Distribution Center . 8Wa-10-2, 3, 10, 11, 12,
13, 14, 15, 16, 17, 18, 19, 22, 23, 24, 25, 26, 27, 28
Power Window Master Switch......... 8Wa-10-29
Powertrain Control Module . . 8Wa-10-11, 19, 26, 28
Radiator Fan Relay.............. 8Wa-10-10, 14
Starter Motor Relay.............. 8Wa-10-23, 28
Starter Motor..................... 8Wa-10-23
Trailer Tow Circuit Breaker..... 8Wa-10-10, 12, 15
Trailer Tow Circuit Breaker.......... 8Wa-10-15
Trailer Tow Connector............... 8Wa-10-15
Trailer Tow Relay.................. 8Wa-10-15
Transmission Control Module . . . 8Wa-10-10, 17, 28
Transmission Control Relay........ 8Wa-10-10, 17
Transmission Solenoid/TRS Assembly . . . 8Wa-10-17
KJ8W-10 POWER DISTRIBUTION8Wa-10-1