2002 JEEP LIBERTY remove seats

(8) Place new clamps onto new boot and slide boot
onto the shaft to it's original position.
(9) Apply the rest of lubricant to the C/V joint and
boot.
(10) Install the joint onto the shaft. Push the joint
onto the shaft until the snap ring seats in the groove
(Fig. 15). Pull on the joint to verify the span ring has
engaged.
(11) Position the boot on the joint in it's original
position. Ensure that the boot is not twisted and
remove any excess air.
(12) Secure both boot clamps (Fig. 16) with Clamp
Installer C-4975A. Place tool on clamp bridge and
tighten tool until the jaws of the toll are closed.
CV JOINT/BOOT-INNER
REMOVAL
(1) Clamp shaft in a vise (with soft jaws) and sup-
port C/V joint.
(2) Remove clamps with a cut-off wheel or grinder.
CAUTION: Do not damage C/V housing or half
shaft.
(3) Slide the boot down the shaft (Fig. 17).
Fig. 15 OUTER C/V JOINT
1 - SNAP RING
2 - SHAFT TAPER
3 - SNAP RING GROVE
4 - BEARING HUB
Fig. 16 BOOT CLAMP LOCATIONS
1 - C/V HOUSING
2 - CLAMP
3 - HALF SHAFT
4 - CLAMP
5 - C/V BOOT
Fig. 17 INNER C/V BOOT
1 - HOUSING
2 - BOOT
3 - HOUSING SNAP RING
KJHALF SHAFT 3 - 15
CV JOINT/BOOT-OUTER (Continued)

a linear force against the secondary brake shoe. This
action presses the secondary shoe into contact with
the drum. Once the secondary shoe contacts the
drum, force is exerted through the strut. This force is
transferred through the strut to the primary brake
shoe causing it to pivot into the drum as well.
A gear type ratcheting mechanism is used to hold
the lever in an applied position. Parking brake
release is accomplished by the hand lever release
button.
A parking brake switch is mounted on the parking
brake lever and is actuated by movement of the
lever. The switch, which is in circuit with the red
warning light in the dash, will illuminate the warn-
ing light whenever the parking brakes are applied.
Parking brake is self-adjusting when the lever is
pulled. The cable tensioner, once adjusted at the fac-
tory, should not need further adjustment under nor-
mal circumstances.
ADJUSTMENTS
ADJUSTMENT - LOCK OUT
NOTE: The parking brake is self-adjusting, It can
not be adjusted.
(1) Remove the center floor console (Refer to 23 -
BODY/INTERIOR/FLOOR CONSOLE - REMOVAL).
(2) Pull up on the spring until the tab on the lever
passes the tab on the cable guide and install a punch
in the hole on the side then release (Fig. 46).(3) The park brake system is now locked out to
perform necessary repairs.
CABLES
REMOVAL
(1) Lock out the parking brake cables (Refer to 5 -
BRAKES/PARKING BRAKE - ADJUSTMENTS) (Fig.
46).
(2) Remove the rear seat (Refer to 23 - BODY/
SEATS/SEAT - REMOVAL).
(3) Remove the cable saddle bracket (Fig. 47).
(4) Disconnect the two cables from the front mount
(Fig. 48).
(5) Pull the carpet forward far enough in the rear
to gain access to the two parking brake cables thru
the floor (Fig. 47).
(6) Push the cables thru the floor with the grom-
mets.
(7) Remove the primary brake shoe hold down
spring and separate the shoes to gain access, Then
disconnect the cable from lever on brake shoe.
(8) Remove cables from backing plates by using a
screw driver to break off the tangs on the cable or a
proper sized box end wrench over the tangs.
INSTALLATION
(1) Install the cables into the support plate.
(2) Reconnect the cable to the lever on the brake
shoe, Install the primary brake shoe hold down
spring and the shoes.
Fig. 46 LOCK OUT CABLES
1 - PARKING BRAKE HANDLE
2 - PUNCH
3 - CABLE GUIDE
4 - CABLE
Fig. 47 MOUNTING BRACKETS
1 - MOUNTING SADDLE BRACKET
2 - PARK BRAKE CABLES
3 - CARPET
5 - 30 BRAKES - BASEKJ
PARKING BRAKE (Continued)

(3) Push the cables thru the floor and seat the
grommets.
(4) Reconnect the two cables to the front mount.
(5) Install the cable saddle bracket (Fig. 47).
(6) Lay the carpet back down in the rear.
(7) Install the rear seat (Refer to 23 - BODY/
SEATS/SEAT - INSTALLATION).
(8) Remove the lock out device on the lever.
(9) Test the parking brake.
LEVER
REMOVAL
The center floor console must be removed to service
the parking brake lever,(Refer to 23 - BODY/INTERI-
OR/FLOOR CONSOLE - REMOVAL) .
(1) Lock out the parking brakes (Refer to 5 -
BRAKES/PARKING BRAKE - ADJUSTMENTS).
(2) Disengage the front cables from the equalizer
(Fig. 49).
(3) Disconnect the parking brake lamp switch wire
(Fig. 49).
(4) Remove the parking brake lever assembly
mounting bolts (Fig. 50).
(5) Remove the lever assembly.
INSTALLATION
(1) Install the parking brake lever assembly.
(2) Install the parking brake lever assembly to the
mounting bolts. Tighten (Fig. 50).
Install the center floor console, (Refer to 23 -
BODY/INTERIOR/FLOOR CONSOLE - INSTALLA-
TION).
(3) Engage the front cables to the equalizer (Fig.
49).(4) Reconnect the parking brake lamp switch wire
(Fig. 49).
(5) If installing a new parking brake lever remove
the pin that come on the lever when shipped.
(6) If you are reinstalling the original park brake
lever remove the lock out device at this time.
(7) Test the parking brake lever. (Fig. 50).
Fig. 48 CABLE FRONT MOUNT
1 - RETAINER CLIPS
2 - CABLES
Fig. 49 PARKING BRAKE LEVER
1 - PARK BRAKE LEVER ASSEMBLY
2 - EQUALIZER
Fig. 50 LEVER MOUNT
1 - ELECTRICAL CONNECTOR
2 - PARK BRAKE LEVER ASSEMBLY
3 - CABLE
KJBRAKES - BASE 5 - 31
CABLES (Continued)

controls the ground for the heated seat switch indi-
cator lamps (LED's).
When a heated seat switch (Driver or Passenger) is
depressed a signal is received by the heated seat
module, the module energizes the proper indicator
LED (Low or High) in the switch by grounding the
indicator lamp circuit to indicate that the heated seat
system is operating. At the same time, the heated
seat module energizes the selected heated seat sensor
circuit and the sensor provides the module with an
input indicating the surface temperature of the
selected seat cushion.
The Low heat set point is about 36É C (96.8É F),
and the High heat set point is about 42É C (107.6É F).
If the seat cushion surface temperature input is
below the temperature set point for the selected tem-
perature setting, the heated seat module energizes
an N-channel Field Effect Transistor (N-FET) within
the module which energizes the heated seat elements
in the selected seat cushion and back. When the sen-
sor input to the module indicates the correct temper-
ature set point has been achieved, the module
de-energizes the N-FET which de-energizes the
heated seat elements. The heated seat module will
continue to cycle the N-FET as needed to maintain
the selected temperature set point.
If the heated seat module detects a heated seat
sensor value input that is out of range or a shorted
or open heated seat element circuit, it will notify the
vehicle operator or the repair technician of this con-
dition by flashing the High and/or Low indicator
lamps in the affected heated seat switch. Refer to
Diagnosis and Testing Heated Seat Systemin
Heated Systems for flashing LED diagnosis and test-
ing procedures. Refer toDiagnosis and Testing
Heated Seat Modulein this section for heated seat
module diagnosis and testing procedures. Also refer
to the Body Diagnostic Manual for additional diagno-
sis and testing procedures.
DIAGNOSIS AND TESTING - HEATED SEAT
MODULE
If a heated seat fails to heat and one or both of the
indicator lamps on a heated seat switch flash, refer
toHeated Seat System Diagnosis and Testingin
Heated Systems for flashing LED failure identifica-
tion. Refer toWiring Diagramsin for complete
heated seat system wiring diagrams.
(1) Remove the heated seat module from its
mounting location (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/MEMORY HEATED
SEAT/MIRROR MODULE - REMOVAL).NOTE: ANY RESISTANCE VALUES (OHMSV) GIVEN
IN THE FOLLOWING TEXT ARE SUPPLIED USING
THE AUTOMATIC RANGE GENERATED BY A
FLUKETAUTOMOTIVE METER. IF ANOTHER TYPE
OF MEASURING DEVICE IS USED THE VALUES
GENERATED MAY NOT BE THE SAME AS THE
RESULTS SHOWN HERE, OR MAY HAVE TO BE
CONVERTED TO THE RANGE USED HERE.
RIGHT SEAT HEATER INOPERATIVE
(1) If a heated seat heats but one or both indicator
lamps (LED's) on the heated seat switch fail to illu-
minate, check the driver circuit with the inoperative
LED for a short to ground. If OK, replace the heated
seat switch. If NOT OK repair the short to ground as
required and than replace the heated seat switch.
NOTE: IF THE RIGHT SEAT CUSHION IS ALREADY
WARM THE FOLLOWING STEP WILL NOT PROVE
CONCLUSIVE.
(2) Back-probe the heated seat module wire har-
ness connector (Fig. 15), do not disconnect. Check
cavity #3 for battery voltage when the right heated
seat switch is turned ªONº, voltage should be
present, If OK go to Step 3 If NOT OK, test the right
heated seat switch (Refer to 8 - ELECTRICAL/
HEATED SEATS/PASSENGER HEATED SEAT
SWITCH - DIAGNOSIS AND TESTING). If the
switch tests OK, check for continuity between the
switch and control module on the MUX circuit, If OK
replace the heated seat control module. If NOT OK,
repair the open or shorted MUX circuit as required.
Fig. 15 Heated Seat Module Electrical Connector
8E - 22 ELECTRONIC CONTROL MODULESKJ
HEATED SEAT MODULE (Continued)

BOTH SEATS INOPERATIVE
If both seats (driver and passenger) fail to heat
and the indicator lamps on the heated seat switches
for both seats fail to operate, test the heated seat
fuses in the junction block. If the heated seat fuses
check OK, go to Step 1.
(1) Back-probe the heated seat module wire har-
ness connector, do not disconnect. Check for continu-
ity between the ground circuit cavity #13 of the
heated seat module connector and a good ground. If
OK go to Step 2. If NOT OK, repair the open or
shorted ground circuit as required.
(2) Back-probe the heated seat module wire har-
ness connector, do not disconnect. Check cavity #4
and #6 for battery voltage, voltage should be present,
If OK go to Step 3. If NOT OK repair the open or
shorted fused B(+) circuit as required.
(3) Back-probe the heated seat module wire har-
ness connector, do not disconnect. Check cavity #2 for
approx. 5v, voltage should be present, replace the
heated seat control module with a known good mod-
ule and verify system operation.
REMOVAL
(1) Working under the front seat cushion (Fig. 16),
remove the heated seat module from its mounting
bracket by gently prying the module off of the two
mounting pushpins.
(2) Disconnect the seat wire harness connector
from the connector receptacle on the side of the
heated seat module.
(3) Remove the heated seat module from the vehi-
cle.
INSTALLATION
(1) Connect the seat wire harness connector to the
connector receptacle on the side of the heated seat
module.
(2) Install the heated seat module on its mounting
bracket under the front seat.
(3) Verify heated seat system operation.
Fig. 16 Heated Seat Module Location
1 - Front Seat Cushion
2 - Heated Seat Module
3 - Electrical Connector
8E - 24 ELECTRONIC CONTROL MODULESKJ
HEATED SEAT MODULE (Continued)

HEATED SEAT SYSTEM
TABLE OF CONTENTS
page page
HEATED SEAT SYSTEM
DESCRIPTION.........................10
OPERATION...........................10
DIAGNOSIS AND TESTING - HEATED SEAT
SYSTEM............................11
DRIVER SEAT HEATER SWITCH
DESCRIPTION.........................11
OPERATION...........................12
DIAGNOSIS AND TESTING - HEATED SEAT
SWITCH............................12
REMOVAL.............................13
INSTALLATION.........................13
HEATED SEAT ELEMENT
DESCRIPTION.........................13OPERATION...........................13
DIAGNOSIS AND TESTING - HEATED SEAT
ELEMENT...........................13
HEATED SEAT SENSOR
DIAGNOSIS AND TESTING - HEATED SEAT
SENSOR............................14
PASSENGER SEAT HEATER SWITCH
DESCRIPTION.........................14
OPERATION...........................14
DIAGNOSIS AND TESTING - HEATED SEAT
SWITCH............................14
REMOVAL.............................15
INSTALLATION.........................15
HEATED SEAT SYSTEM
DESCRIPTION
Individually controlled electrically heated front
seats are available on models that are also equipped
with the optional leather trim package. Vehicles with
this option can be visually identified by the two sep-
arate heated seat switches mounted on the outboard
seat cushion side shields. The heated seat system
allows the front seat driver and passenger to select
from two different levels of supplemental electrical
seat heating, or no seat heating to suit their individ-
ual comfort requirements. The heated seat system for
this vehicle includes the following major components:
²Heated Seat Switches- Two heated seat
switches are used per vehicle, including two Light-
Emitting Diode (LED) indicator lamps and an incan-
descent back lighting bulb for each switch. One
switch for the driver and one for the passenger front
seats. The switches are mounted on the outboard
seat cushion side shields.
²Heated Seat Module- also referred to as the
Seat Heat Interface Module (SHIM), this module con-
tains the solid state electronic control and diagnostic
logic circuitry for the heated seat system. One heated
seat module is used per vehicle and is mounted
under the left front seat cushion. Refer to the Elec-
tronic Control Modules section of the service manual
for heated seat module information.
²Heated Seat Elements- Four heated seat ele-
ments are used per vehicle, one for each front seat
back and one for each front seat cushion. The ele-
ments are integral to the individual front seat andseat back cushions and cannot be removed from the
cushions, once installed at the factory.
²Heated Seat Sensors- Two heated seat sen-
sors are used per vehicle, one for each front seat. The
sensors are integral to the individual front seat heat-
ing elements.
Following are general descriptions of the major
components in the heated seat system. See the own-
er's manual in the vehicle glove box for more infor-
mation on the features, use and operation of the
heated seat system. Refer toWiring Diagramsfor
the location of complete heated seat system wiring
diagrams.
OPERATION
The heated seat module receives fused battery cur-
rent through fuse #29 in the Junction Block (JB)
when the ignition switch is in the ªONº position. The
heated seat switches receive battery current through
fuse #25 in the Junction Block also, when the igni-
tion switch is in the ªONº position. The heated seat
module shares a common ground circuit with each of
the heated seat elements. The heated seat elements
will only operate when the surface temperature of
the seat cushion is below the designed temperature
set points of the system.
The heated seat system will also be turned off
automatically whenever the ignition switch is turned
to any position except On. If the ignition switch is
turned to the Off position while a heated seat is
turned ON, the heated seat will remain Off after the
ignition switch is turned back ªONº until a heated
seat switch is depressed again.
8G - 10 HEATED SEAT SYSTEMKJ

OPERATION
There are three positions that can be selected with
each of the heated seat switches: Off, Low, and High.
When the front of the switch rocker is fully
depressed, the High position is selected and the high
position LED indicator illuminates. When the rear of
the switch rocker is fully depressed, the Low position
is selected and the low position LED indicator illumi-
nates. When the switch rocker is depressed a second
time in either direction, Off is selected and both LED
indicators are extinguished.
Both switches provide separate resistor multi-
plexed hard wire inputs to the Heated Seat Module
to indicate the selected switch position. The heated
seat module monitors the switch inputs and responds
to the heated seat switch status messages by control-
ling the output to the seat heater elements of the
selected seat. The Low heat position set point is
about 36É C (97É F), and the High heat position set
point is about 41É C (105É F).
DIAGNOSIS AND TESTING - HEATED SEAT
SWITCH
If a heated seat fails to heat and one or both of the
indicator lamps on a heated seat switch flash, refer
toHeated Seat System Diagnosis and Testingin
this section for flashing LED failure identification.
Refer toWiring Diagramsfor complete heated seat
system wiring diagrams.
(1) If the problem being diagnosed involves a
heated seat switch indicator lamp that remains illu-
minated after the heated seat has been turned Off,refer toDiagnosis and Testing the Heated Seat
Modulein the Electronic Control Modules section for
heated seat module diagnosis and testing procedures.
If not, go to Step 2
(2) Remove the heated seat switch (Refer to 8 -
ELECTRICAL/HEATED SEATS/DRIVER HEATED
SEAT SWITCH - REMOVAL). Check for continuity
between the ground circuit cavity #5 of the heated
seat switch connector and a good ground. There
should be continuity. If OK, go to Step 3. If not OK,
repair the open ground circuit as required.
(3) Turn the ignition switch to the ON position.
Check for battery voltage at the fused ignition switch
output circuit cavity #1 of the heated seat switch con-
nector. If OK, go to Step 4. If not OK, repair the open
fused ignition switch output circuit as required.
(4) Check the continuity between pin #1 and pin
#3 of the heated seat switch (Fig. 2). If the readings
do not correspond to those in the Heated Seat Switch
Continuity table below, replace the heated seat
switch. If OK, and the heated seat system is still not
operating properly refer toDiagnosis and Testing
the Heated Seat Module.
NOTE: ANY RESISTANCE VALUES (OHMSV) GIVEN
IN THE FOLLOWING TEXT ARE SUPPLIED USING
THE AUTOMATIC RANGE GENERATED BY A
FLUKETAUTOMOTIVE METER. IF ANOTHER TYPE
OF MEASURING DEVICE IS USED, THE VALUES
GENERATED MAY NOT BE THE SAME AS THE
RESULTS SHOWN HERE, OR MAY HAVE TO BE
CONVERTED TO THE RANGE USED HERE.
Fig. 1 KJ POWER / HEATED SEAT
Fig. 2 Heated Seat Switches
8G - 12 HEATED SEAT SYSTEMKJ
DRIVER SEAT HEATER SWITCH (Continued)

HEATED SEAT SWITCH CONTINUITY
CONTINUITY
BETWEENSWITCH
POSITIONOHMS
READING +/±
10%
PIN 1 AND 3 OFF 2.2 K (2200)
OHMS
PIN 1 AND 3 LO .415 K (415)
OHMS
PIN 1 AND 3 HI 33 OHMS
REMOVAL
(1) Disconnect and isolate the negative battery
cable.
(2) Remove the appropriate seat cushion side
shield (Refer to 23 - BODY/SEATS/SEAT CUSHION
SIDE COVERS - REMOVAL).
(3) Disconnect the heated seat switch electrical
connector. Depress the locking tab and pull straight
apart.
(4) Working from the underside of the switch, gen-
tly rock the switch back and forth out of its mounting
location.
INSTALLATION
(1) Gently rock the switch back and forth in to its
mounting location.
(2) Connect the heated seat switch electrical con-
nector.
(3) Install the appropriate seat cushion side shield.
Refer to the Body section of the service manual for
the procedure.
(4) Connect the negative battery cable.
HEATED SEAT ELEMENT
DESCRIPTION
The heated seat system includes four seat heating
elements. Two are located in each front seat, one for
the seat cushion and the other for the seat back. All
models use two resistor wire heating elements for
each seat that are connected in series with the
Heated Seat Module (HSM). The temperature sensor
is a Negative Temperature Coefficient (NTC) ther-
mistor. One temperature sensor is used for each seat,
and it is located on the seat cushion heating element
for all models.
The seat heating elements are permanently
attached to the seat cushions. The heated seat ele-
ments and the temperature sensor cannot be
adjusted or repaired and, if faulty or damaged, the
seat cushions must be replaced. Refer to the Body
section for the seat cushion service procedures.
OPERATION
The heated seat elements resist the flow of electrical
current. When battery current is passed through the
elements, the energy lost by the resistance of the ele-
ments to the current flow is released in the form of
heat. When the temperature of the seat cushion cover
rises, the resistance of the sensor decreases. The Heated
Seat Module supplies a five-volt current to one side of
each sensor, and monitors the voltage drop through the
sensor on a return circuit. The Heated Seat Module
uses this temperature sensor input to monitor the tem-
perature of the seat, and regulates the current flow to
the seat heating elements accordingly.
DIAGNOSIS AND TESTING - HEATED SEAT
ELEMENT
SEAT CUSHION ELEMENT
(1) Disconnect and isolate the battery negative
cable. Disconnect the green heated seat cushion ele-
ment wire harness connector from the power seat
wire harness. The power seat wire harness connec-
tors for the seat cushion heating elements are
secured to a bracket located under the seat cushion
frame. Refer toWiringfor connector pin information.
(2) Check for continuity between the two heated
seat element circuit cavities. There should be conti-
nuity. If OK, the elements within the seat assembly
test OK, go to Step 3. If not OK, replace the faulty
seat heating element and cushion assembly.
(3) Test the seat wire harness between the heated
seat module connector and the heated seat wire har-
ness element connector for a shorted or open circuit.
If OK, element is OK, proceed with testing the
heated seat sensor and module. If not OK, repair the
shorted or open seat wire harness as required.
SEAT BACK ELEMENT
(1) Disconnect and isolate the battery negative
cable. Disconnect the green heated seat back element
wire harness connector from the power seat wire har-
ness. The power seat wire harness connectors for the
seat cushion heating elements are secured to a
bracket located under the seat cushion frame. Refer
toWiringfor connector pin information.
(2) Check for continuity between the two heated
seat element circuit cavities. There should be conti-
nuity. If OK, the elements within the seat assembly
test OK, go to Step 3. If not OK, replace the faulty
seat heating element and cushion assembly.
(3) Test the seat wire harness between the heated
seat module connector and the heated seat wire har-
ness element connector for a shorted or open circuit.
If OK, element is OK, proceed with testing the
heated seat sensor and module. If not OK, repair the
shorted or open seat wire harness as required.
KJHEATED SEAT SYSTEM 8G - 13
DRIVER SEAT HEATER SWITCH (Continued)