2002 JEEP LIBERTY Page 21

RESTRAINTS
TABLE OF CONTENTS
page page
RESTRAINTS
DESCRIPTION..........................2
OPERATION............................4
WARNING - RESTRAINT SYSTEM...........5
DIAGNOSIS AND TESTING - SUPPLEMENTAL
RESTRAINT SYSTEM...................6
STANDARD PROCEDURE
STANDARD PROCEDURE - HANDLING
NON-DEPLOYED SUPPLEMENTAL
RESTRAINTS.........................6
STANDARD PROCEDURE - SERVICE
AFTER A SUPPLEMENTAL RESTRAINT
DEPLOYMENT.........................6
STANDARD PROCEDURE - VERIFICATION
TEST................................8
AIRBAG CONTROL MODULE
DESCRIPTION..........................9
OPERATION...........................10
REMOVAL.............................11
INSTALLATION.........................12
CHILD TETHER ANCHOR
DESCRIPTION.........................13
OPERATION...........................13
CLOCKSPRING
DESCRIPTION.........................13
OPERATION...........................14
STANDARD PROCEDURE - CLOCKSPRING
CENTERING.........................14
REMOVAL.............................15
INSTALLATION.........................16
DRIVER AIRBAG
DESCRIPTION.........................17
OPERATION...........................18
REMOVAL.............................19
INSTALLATION.........................20
FRONT IMPACT SENSOR
DESCRIPTION.........................21
OPERATION...........................21
REMOVAL.............................22
INSTALLATION.........................22
FRONT SEAT BELT & RETRACTOR
REMOVAL.............................23
INSTALLATION.........................24FRONT SEAT BELT BUCKLE
REMOVAL.............................25
INSTALLATION.........................26
PASSENGER AIRBAG
DESCRIPTION.........................27
OPERATION...........................27
REMOVAL.............................28
INSTALLATION.........................29
PASSENGER AIRBAG DOOR
REMOVAL.............................29
INSTALLATION.........................30
PASSENGER AIRBAG MOUNTING BRACKET
REMOVAL.............................31
INSTALLATION.........................31
REAR CENTER SEAT BELT & RETRACTOR
REMOVAL.............................32
INSTALLATION.........................33
REAR OUTBOARD SEAT BELT & RETRACTOR
REMOVAL.............................33
INSTALLATION.........................34
REAR SEAT BELT BUCKLE
REMOVAL.............................34
INSTALLATION.........................35
SEAT BELT SWITCH
DESCRIPTION.........................35
OPERATION...........................36
SEAT BELT TENSIONER
DESCRIPTION.........................36
OPERATION...........................36
SEAT BELT TURNING LOOP ADJUSTER
REMOVAL.............................37
INSTALLATION.........................38
SIDE CURTAIN AIRBAG
DESCRIPTION.........................38
OPERATION...........................39
REMOVAL.............................40
INSTALLATION.........................41
SIDE IMPACT AIRBAG CONTROL MODULE
DESCRIPTION.........................43
OPERATION...........................43
REMOVAL.............................44
INSTALLATION.........................45
KJRESTRAINTS 8O - 1

SPEED CONTROL
TABLE OF CONTENTS
page page
SPEED CONTROL
DESCRIPTION..........................1
OPERATION............................1
DIAGNOSIS AND TESTING - ROAD TEST.....2
SPECIFICATIONS
TORQUE - SPEED CONTROL.............2
CABLE
DESCRIPTION..........................3
OPERATION............................3
REMOVAL - 3.7L.........................3
INSTALLATION - 3.7L.....................4
SERVO
DESCRIPTION..........................4
OPERATION............................4REMOVAL.............................4
INSTALLATION..........................5
SWITCH
DESCRIPTION..........................5
OPERATION............................5
REMOVAL.............................6
INSTALLATION..........................6
VACUUM RESERVOIR
DESCRIPTION..........................7
OPERATION............................7
DIAGNOSIS AND TESTING - VACUUM
RESERVOIR..........................7
REMOVAL.............................7
INSTALLATION..........................8
SPEED CONTROL
DESCRIPTION
The speed control system is electronically con-
trolled and vacuum operated. Electronic control of
the speed control system is integrated into the Pow-
ertrain Control Module (PCM). The controls consist
of two steering wheel mounted switches. The
switches are labeled: ON/OFF, RES/ACCEL, SET,
COAST, and CANCEL.
The system is designed to operate at speeds above
30 mph (50 km/h).
WARNING: THE USE OF SPEED CONTROL IS NOT
RECOMMENDED WHEN DRIVING CONDITIONS DO
NOT PERMIT MAINTAINING A CONSTANT SPEED,
SUCH AS IN HEAVY TRAFFIC OR ON ROADS THAT
ARE WINDING, ICY, SNOW COVERED, OR SLIP-
PERY.
OPERATION
When speed control is selected by depressing the
ON switch, the PCM allows a set speed to be stored
in PCM RAM for speed control. To store a set speed,
depress the SET switch while the vehicle is moving
at a speed between 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 switch²Depressing the CANCEL switch.
²Depressing the clutch pedal (if equipped).
NOTE: Depressing the OFF switch or turning off the
ignition switch will erase the set speed stored in
the PCM.
For added safety, the speed control system is pro-
grammed to disengage for any of the following condi-
tions:
²An indication of Park or Neutral
²A rapid increase rpm (indicates that the clutch
has been disengaged)
²Excessive engine rpm (indicates that the trans-
mission may be in a low gear)
²The speed signal increases at a rate of 10 mph
per second (indicates that the coefficient of friction
between the road surface and tires is extremely low)
²The speed signal decreases at a rate of 10 mph
per second (indicates that the vehicle may have
decelerated at an extremely high rate)
Once the speed control has been disengaged,
depressing the RES/ACCEL switch (when speed is
greater than 30 mph) restores the vehicle to the tar-
get speed that was stored in the PCM.
While the speed control is engaged, the driver can
increase the vehicle speed by depressing the RES/AC-
CEL switch. The new target speed is stored in the
PCM when the RES/ACCEL is released. The PCM
also has a9tap-up9feature in which vehicle speed
increases at a rate of approximately 2 mph for each
momentary switch activation of the RES/ACCEL
switch.
KJSPEED CONTROL 8P - 1

VEHICLE THEFT SECURITY
TABLE OF CONTENTS
page page
VEHICLE THEFT SECURITY
DESCRIPTION..........................1
OPERATION............................3
DIAGNOSIS AND TESTING - VEHICLE THEFT
SECURITY SYSTEM....................6
STANDARD PROCEDURE
STANDARD PROCEDURE - SKIS
INITIALIZATION........................8
STANDARD PROCEDURE - SENTRY KEY
TRANSPONDER PROGRAMMING..........8
DOOR CYLINDER LOCK SWITCH
DESCRIPTION..........................9
OPERATION...........................10
DIAGNOSIS AND TESTING - DOOR
CYLINDER LOCK SWITCH..............10
REMOVAL.............................10
INSTALLATION.........................10
HOOD AJAR SWITCH
DESCRIPTION.........................11
OPERATION...........................12
DIAGNOSIS AND TESTING - HOOD AJAR
SWITCH............................12REMOVAL.............................12
INSTALLATION.........................12
HOOD AJAR SWITCH BRACKET
REMOVAL.............................13
INSTALLATION.........................13
HOOD AJAR SWITCH STRIKER
REMOVAL.............................13
INSTALLATION.........................14
INTRUSION TRANSCEIVER MODULE
DESCRIPTION.........................14
OPERATION...........................15
REMOVAL.............................15
INSTALLATION.........................16
SIREN
DESCRIPTION.........................16
OPERATION...........................17
REMOVAL.............................17
INSTALLATION.........................17
TRANSPONDER KEY
DESCRIPTION.........................18
OPERATION...........................18
VEHICLE THEFT SECURITY
DESCRIPTION
The Vehicle Theft Security System (VTSS) is an
available factory-installed option on this model (Fig.
1). The VTSS is comprised of two primary sub-
systems: Vehicle Theft Alarm (VTA) and Sentry Key
Immobilizer System (SKIS). The VTA is an active
system that provides visual and audible responses as
deterrents to and warnings of unauthorized vehicle
tampering. The SKIS is a passive system that effec-
tively immobilizes the vehicle against unauthorized
operation. Following are paragraphs which describe
the various components that are included in each of
these subsystems of the VTSS.
Hard wired circuitry connects many of the VTSS
components to each other through the electrical sys-
tem of the vehicle. These hard wired circuits are
integral to several wire harnesses, which are routed
throughout the vehicle and retained by many differ-
ent methods. These circuits may be connected to each
other, to the vehicle electrical system and to the
VTSS components through the use of a combination
of soldered splices, splice block connectors, and many
different types of wire harness terminal connectorsand insulators. Refer to the appropriate wiring infor-
mation. The wiring information includes wiring dia-
grams, proper wire and connector repair procedures,
further details on wire harness routing and reten-
tion, as well as pin-out and location views for the
various wire harness connectors, splices and grounds.
VEHICLE THEFT ALARM The VTA is available in
two different configurations for this vehicle: One con-
figuration is designed for vehicles manufactured for
sale in North America; while, the other configuration
is designed for vehicles manufactured for sale in
markets outside of North America, also referred to as
Rest-Of-World or ROW. In addition, the VTA for
ROW is available in two versions: base and premium.
All vehicles equipped with VTA are also equipped
with the Remote Keyless Entry (RKE) system and
the Sentry Key Immobilizer System (SKIS), regard-
less of their market destination. The North American
and ROW base version of the VTA provides perimeter
vehicle protection by monitoring the vehicle doors,
the tailgate, the rear flip-up glass and, for vehicles
built for certain markets where it is required equip-
ment, the hood. If unauthorized vehicle use or tam-
pering is detected, these systems respond by pulsing
the horn and flashing certain exterior lamps. The
ROW premium version of the VTA is only available
KJVEHICLE THEFT SECURITY 8Q - 1

WIPERS/WASHERS
TABLE OF CONTENTS
page page
FRONT WIPERS/WASHERS.................. 1REAR WIPERS/WASHERS.................. 27
FRONT WIPERS/WASHERS
TABLE OF CONTENTS
page page
FRONT WIPERS/WASHERS
DESCRIPTION..........................2
OPERATION............................4
DIAGNOSIS AND TESTING - FRONT WIPER &
WASHER SYSTEM.....................6
CLEANING - FRONT WIPER & WASHER
SYSTEM.............................7
INSPECTION - FRONT WIPER & WASHER
SYSTEM.............................7
FRONT CHECK VALVE
DESCRIPTION..........................8
OPERATION............................9
REMOVAL.............................9
INSTALLATION..........................9
FRONT WASHER HOSES/TUBES
DESCRIPTION.........................10
OPERATION...........................10
FRONT WASHER NOZZLE
DESCRIPTION.........................11
OPERATION...........................11
REMOVAL.............................11
INSTALLATION.........................11
FRONT WIPER ARM
DESCRIPTION.........................12
OPERATION...........................12
REMOVAL.............................12
INSTALLATION.........................13
FRONT WIPER BLADE
DESCRIPTION.........................13
OPERATION...........................14
REMOVAL.............................14
INSTALLATION.........................14
FRONT WIPER MODULE
DESCRIPTION.........................15
OPERATION...........................15REMOVAL.............................16
INSTALLATION.........................16
FRONT WIPER/WASHER SWITCH
DESCRIPTION.........................16
OPERATION...........................16
WASHER FLUID LEVEL SWITCH
DESCRIPTION.........................17
OPERATION...........................17
REMOVAL.............................17
INSTALLATION.........................18
WASHER PUMP/MOTOR
DESCRIPTION.........................18
OPERATION...........................19
REMOVAL.............................19
INSTALLATION.........................20
WASHER RESERVOIR
DESCRIPTION.........................21
OPERATION...........................21
REMOVAL.............................21
INSTALLATION.........................22
WIPER HIGH/LOW RELAY
DESCRIPTION.........................23
OPERATION...........................23
DIAGNOSIS AND TESTING - WIPER HIGH/
LOW RELAY.........................24
REMOVAL.............................24
INSTALLATION.........................24
WIPER ON/OFF RELAY
DESCRIPTION.........................25
OPERATION...........................25
DIAGNOSIS AND TESTING - WIPER ON/OFF
RELAY..............................26
REMOVAL.............................26
INSTALLATION.........................26
KJWIPERS/WASHERS 8R - 1

REAR WIPERS/WASHERS
TABLE OF CONTENTS
page page
REAR WIPERS/WASHERS
DESCRIPTION.........................27
OPERATION...........................29
DIAGNOSIS AND TESTING - REAR WIPER &
WASHER SYSTEM....................30
CLEANING - REAR WIPER & WASHER
SYSTEM............................32
INSPECTION - REAR WIPER & WASHER
SYSTEM............................33
REAR CHECK VALVE
DESCRIPTION.........................34
OPERATION...........................34
REMOVAL.............................34
INSTALLATION.........................35
REAR WASHER HOSES/TUBES
DESCRIPTION.........................35
OPERATION...........................36
REAR WASHER NOZZLE
DESCRIPTION.........................36
OPERATION...........................36
REMOVAL.............................36
INSTALLATION.........................37REAR WIPER ARM
DESCRIPTION.........................37
OPERATION...........................38
REMOVAL.............................38
INSTALLATION.........................38
REAR WIPER BLADE
DESCRIPTION.........................39
OPERATION...........................39
REMOVAL.............................40
INSTALLATION.........................40
REAR WIPER MOTOR
DESCRIPTION.........................41
OPERATION...........................41
REMOVAL.............................42
INSTALLATION.........................42
REAR WIPER/WASHER SWITCH
DESCRIPTION.........................43
OPERATION...........................43
WIPER ARM PARK RAMP
REMOVAL.............................43
INSTALLATION.........................43
REAR WIPERS/WASHERS
DESCRIPTION
An electrically operated fixed interval intermittent
rear wiper and washer system is standard factory-in-
stalled equipment on this model (Fig. 1). The rear
wiper and washer system includes the following
major components, which are described in further
detail elsewhere in this service information:
²Multi-Function Switch- The multi-function
switch is located on the top of the steering column,
just below the steering wheel. The multi-function
switch includes a left (lighting) control stalk and a
right (wiper) control stalk. The right control stalk is
dedicated to providing all of the driver controls for
both the front and rear wiper systems. (Refer to 8 -
ELECTRICAL/LAMPS/LIGHTING - EXTERIOR/
MULTI-FUNCTION SWITCH - DESCRIPTION).
²Rear Check Valve- The rear washer system
check valve is located in the washer plumbing
between the rear roof header and the roof outer
panel near the rear washer nozzle.
²Rear Washer Nozzle- The rear washer nozzle
is secured by a snap fit into a mounting hole in the
roof outer panel above the rear flip-up glass opening.²Rear Washer Plumbing- The plumbing for
the rear washer system consists of rubber hoses and
molded plastic fittings. The plumbing is routed along
the right side of the engine compartment from the
washer reservoir, through the dash into the passen-
ger compartment, up the right cowl side and A-pillar
to the headliner, and above the headliner to the rear
washer nozzle fitting within the rear roof header.
²Rear Wiper Arm- The single rear wiper arm is
secured by a nut directly to the rear wiper motor out-
put shaft, which extends through the center of the
tailgate outer panel near the base of the rear flip-up
glass.
²Rear Wiper Arm Park Ramp- The molded
rubber rear wiper arm park ramp is secured with a
screw to the tailgate outer panel to the right of the
rear wiper motor output shaft bezel. When the rear
wiper system is not in operation, the rear wiper arm
is parked off of the rear flip-up glass on this ramp so
that it will not interfere with or be damaged by the
flip-up glass operation.
²Rear Wiper Blade- The single rear wiper
blade is secured to the rear wiper arm with an inte-
gral latch, and is parked off of the rear flip-up glass
when the rear wiper system is not in operation.
KJREAR WIPERS/WASHERS 8R - 27

WIRING
TABLE OF CONTENTS
page page
WIRING DIAGRAM INFORMATION...... 8Wa-01-1
COMPONENT INDEX................. 8Wa-02-1
POWER DISTRIBUTION.............. 8Wa-10-1
JUNCTION BLOCK................... 8Wa-12-1
GROUND DISTRIBUTION............. 8Wa-15-1
BUS COMMUNICATIONS............. 8Wa-18-1
CHARGING SYSTEM................. 8Wa-20-1
STARTING SYSTEM................. 8Wa-21-1
FUEL/IGNITION SYSTEM............. 8Wa-30-1
TRANSMISSION CONTROL SYSTEM.... 8Wa-31-1
VEHICLE SPEED CONTROL........... 8Wa-33-1
ANTILOCK BRAKES.................. 8Wa-35-1
VEHICLE THEFT SECURITY SYSTEM.... 8Wa-39-1
INSTRUMENT CLUSTER.............. 8Wa-40-1
HORN/CIGAR LIGHTER/POWER OUTLET . 8Wa-41-1
AIR CONDITIONING-HEATER.......... 8Wa-42-1
AIRBAG SYSTEM................... 8Wa-43-1
INTERIOR LIGHTING................. 8Wa-44-1BODY CONTROL MODULE............ 8Wa-45-1
AUDIO SYSTEM.................... 8Wa-47-1
REAR WINDOW DEFOGGER........... 8Wa-48-1
OVERHEAD CONSOLE................ 8Wa-49-1
FRONT LIGHTING................... 8Wa-50-1
REAR LIGHTING.................... 8Wa-51-1
TURN SIGNALS..................... 8Wa-52-1
WIPERS........................... 8Wa-53-1
TRAILER TOW...................... 8Wa-54-1
POWER WINDOWS.................. 8Wa-60-1
POWER DOOR LOCKS............... 8Wa-61-1
POWER MIRRORS.................. 8Wa-62-1
POWER SEAT...................... 8Wa-63-1
POWER SUNROOF.................. 8Wa-64-1
SPLICE INFORMATION............... 8Wa-70-1
CONNECTOR PIN-OUTS.............. 8Wa-80-1
CONNECTOR/GROUND/
SPLICE LOCATION................. 8Wa-91-1 KJWIRING
8Wa-1

8W-01 WIRING DIAGRAM INFORMATION
TABLE OF CONTENTS
page page
WIRING DIAGRAM INFORMATION
DESCRIPTION
DESCRIPTION - HOW TO USE WIRING
DIAGRAMS...........................1
DESCRIPTION - CIRCUIT INFORMATION....5
DESCRIPTION - CIRCUIT FUNCTIONS......5
DESCRIPTION - SECTION IDENTIFICATION
AND INFORMATION....................6
DESCRIPTION - CONNECTOR, GROUND
AND SPLICE INFORMATION..............6
WARNINGS - GENERAL...................6
DIAGNOSIS AND TESTING - WIRING
HARNESS............................7
STANDARD PROCEDURE
STANDARD PROCEDURE -
ELECTROSTATIC DISCHARGE (ESD)
SENSITIVE DEVICES...................8
STANDARD PROCEDURE - TESTING OF
VOLTAGE POTENTIAL...................8
STANDARD PROCEDURE - TESTING FOR
CONTINUITY..........................8STANDARD PROCEDURE - TESTING FOR A
SHORT TO GROUND...................9
STANDARD PROCEDURE - TESTING FOR A
SHORT TO GROUND ON FUSES
POWERING SEVERAL LOADS............9
STANDARD PROCEDURE - TESTING FOR A
VOLTAGE DROP.......................9
SPECIAL TOOLS
WIRING/TERMINAL....................10
CONNECTOR
REMOVAL.............................10
INSTALLATION.........................13
DIODE
REMOVAL.............................13
INSTALLATION.........................13
TERMINAL
REMOVAL.............................13
INSTALLATION.........................13
WIRE
STANDARD PROCEDURE - WIRE SPLICING . . 13
WIRING DIAGRAM
INFORMATION
DESCRIPTION
DESCRIPTION - HOW TO USE WIRING
DIAGRAMS
DaimlerChrysler Corporation wiring diagrams are
designed to provide information regarding the vehi-
cles wiring content. In order to effectively use the
wiring diagrams to diagnose and repair
DaimlerChrysler Corporation vehicles, it is important
to understand all of their features and characteris-
tics.
Diagrams are arranged such that the power (B+)
side of the circuit is placed near the top of the page,
and the ground (B-) side of the circuit is placed near
the bottom of the page (Fig. 1).
All switches, components, and modules are shown
in the at rest position with the doors closed and the
key removed from the ignition (Fig. 2).Components are shown two ways. A solid line
around a component indicates that the component is
complete. A dashed line around the component indi-
cates that the component is being shown is not com-
plete. Incomplete components have a reference
number to indicate the page where the component is
shown complete.
It is important to realize that no attempt is made
on the diagrams to represent components and wiring
as they appear on the vehicle. For example, a short
piece of wire is treated the same as a long one. In
addition, switches and other components are shown
as simply as possible, with regard to function only.
SYMBOLS
International symbols are used throughout the wir-
ing diagrams. These symbols are consistent with
those being used around the world (Fig. 3).
KJ8W-01 WIRING DIAGRAM INFORMATION8Wa-01-1

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