clock JEEP LIBERTY 2002 KJ / 1.G User Guide

(2) With the bulb holder fully seated against the
cluster electronic circuit board, turn the bulb holder
clockwise about sixty degrees to lock it into place.
(3) Reinstall the instrument cluster onto the
instrument panel. (Refer to 8 - ELECTRICAL/IN-
STRUMENT CLUSTER - INSTALLATION).
(4) Reconnect the battery negative cable.
CLUSTER LENS, HOOD, AND MASK
(1) Position the cluster lens, hood, and mask unit
over the face of the instrument cluster (Fig. 5). Be
certain that the odometer/trip odometer switch but-
ton is inserted through the proper clearance holes in
the mask and the lens.
(2) From the back of the instrument cluster, install
and tighten the six screws that secure the rear cover
and the lens, hood, and mask unit to the cluster
housing. Tighten the screws to 1 N´m (10 in. lbs.).
(3) Reinstall the instrument cluster onto the
instrument panel. (Refer to 8 - ELECTRICAL/IN-
STRUMENT CLUSTER - INSTALLATION).
(4) Reconnect the battery negative cable.
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.
(1) Position the instrument cluster to the instru-
ment panel.
(2) Reconnect the instrument panel wire harness
connector for the cluster to the cluster connector
receptacle.
(3) Position the instrument cluster into the instru-
ment panel.
(4) Install and tighten the four screws that secure
the instrument cluster to the instrument panel (Fig.
3). Tighten the screws to 2 N´m (17 in. lbs.).
(5) Reinstall the cluster bezel onto the instrument
panel. (Refer to 23 - BODY/INSTRUMENT PANEL/
CLUSTER BEZEL - INSTALLATION).
(6) Reconnect the battery negative cable.NOTE: Some of the indicators in this instrument
cluster are self configured or automatically config-
ured when the cluster is connected to the vehicle
electrical system. This feature allows those indica-
tors to be enabled for compatibility with certain
optional equipment. However, if an instrument clus-
ter was previously connected to another vehicle
with different equipment options than the current
vehicle, some of the automatically configured indi-
cator settings may have to be disabled using a
DRBIIITscan tool. Refer to the appropriate diagnos-
tic information.
ABS INDICATOR
DESCRIPTION
An Antilock Brake System (ABS) indicator is stan-
dard equipment on all instrument clusters. However,
the instrument cluster is programmed to automati-
cally enable this indicator only on vehicles equipped
with the optional antilock brake system. The ABS
indicator is located above the engine temperature
gauge and to the right of the speedometer in the
instrument cluster. The ABS indicator consists of a
stencil-like cutout of the International Control and
Display Symbol icon for ªFailure of Anti-lock Braking
Systemº 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 circuit
board. The ABS indicator is serviced as a unit with
the instrument cluster.
OPERATION
The ABS indicator gives an indication to the vehi-
cle operator when the ABS system is faulty or inop-
erative. This indicator is controlled by a transistor on
the instrument cluster circuit board based upon clus-
ter programming and electronic messages received by
the cluster from the Controller Antilock Brake (CAB)
over the Programmable Communications Interface
(PCI) data bus. The ABS indicator Light Emitting
Diode (LED) is completely controlled by the instru-
ment cluster logic circuit, and that logic will only
allow this indicator to operate when the instrument
cluster receives a battery current input on the fused
ignition switch output (run-start) circuit. Therefore,
the LED will always be off when the ignition switch
is in any position except On or Start. The LED only
KJINSTRUMENT CLUSTER 8J - 11
INSTRUMENT CLUSTER (Continued)

BRAKE LAMP SWITCH
DESCRIPTION
The brake lamp switch is a three circuit, spring-
loaded plunger actuated switch that is secured to the
steering column support bracket under the driver
side of the instrument panel (Fig. 3). The brake lamp
switch is contained within a rectangular molded plas-
tic housing with an integral connector receptacle fea-
turing six terminal pins and a red plastic Connector
Position Assurance (CPA) lock. The switch is con-
nected to the vehicle electrical system through a ded-
icated take out and connector of the instrument
panel wire harness. The switch plunger extends
through a mounting collar on one end of the switch
housing. The plunger has a one time telescoping self-
adjustment feature that is achieved after the switch
is installed by moving an adjustment release lever on
the opposite end of the switch housing clockwise,
until it locks in a position that is parallel to the con-
nector receptacle. The brake lamp switch self-adjust-
ment is a one time feature. Once the feature has
been used, the switch cannot be readjusted. A ªDO
NOT RE-INSTALLº warning is molded into the
switch housing below the connector receptacle.
An installed brake lamp switch cannot be read-
justed or repaired. If the switch is damaged, faulty,
or removed from its mounting position for any rea-
son, it must be replaced with a new unit.
OPERATION
The brake lamp switch controls three different cir-
cuits, one normally open and two normally closed.
These circuits are described as follows:
²Brake Lamp Switch Circuit- A normally
open brake lamp switch circuit receives battery cur-
rent on a fused B(+) circuit from a fuse in the Junc-
tion Block (JB), and supplies battery current to the
brake lamps and the Controller Antilock Brake
(CAB) on a brake lamp switch output circuit when
the brake pedal is depressed (brake lamp switch
plunger released).
²Brake Lamp Switch Signal Circuit- A nor-
mally closed brake lamp switch signal circuit receives
a path to ground through a splice block located in the
instrument panel wire harness with an eyelet termi-
nal connector that is secured by a nut to a ground
stud on the driver side instrument panel end bracket
near the Junction Block (JB). This circuit supplies a
ground input to the Powertrain Control Module
(PCM) on a brake lamp switch sense circuit when the
brake pedal is released (brake lamp switch plunger is
depressed).
²Speed Control Circuit- A normally closed
speed control circuit receives battery current from
the Powertrain Control Module on a speed control
supply circuit, and supplies battery current to the
speed control servo solenoids (dump, vacuum, and
vent) on a speed control brake switch output circuit
when the speed control system is turned on and the
brake pedal is released (brake lamp switch plunger is
depressed).
Concealed within the brake lamp switch housing
the components of the self-adjusting brake switch
plunger consist of a two-piece telescoping plunger, a
split plunger locking collar, and a release wedge. The
release lever has an integral shaft with a wedge that
spreads the plunger locking collar to an open or
released position. After the switch is installed and
the brake pedal is released, the plunger telescopes to
the correct adjustment position. When the release
lever is moved to the release position, the wedge is
disengaged from the locking collar causing the collar
to apply a clamping pressure to the two plunger
halves fixing the plunger length.
The brake lamp switch can be diagnosed using con-
ventional diagnostic tools and methods.
Fig. 3 Brake Lamp Switch
1 - CONNECTOR RECEPTACLE
2 - BRAKE LAMP SWITCH
3 - PLUNGER
4 - COLLAR
5 - LEVER
8L - 16 LAMPS/LIGHTING - EXTERIORKJ

DIAGNOSIS AND TESTING - BRAKE LAMP
SWITCH
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.
(1) Disconnect and isolate the battery negative
cable. Disconnect the instrument panel wire harness
connector for the brake lamp switch from the switch
connector receptacle.
(2) Using an ohmmeter, perform the continuity
tests at the terminal pins in the brake lamp switch
connector receptacle (Fig. 4) as shown in the Brake
Lamp Switch Tests table.
BRAKE LAMP SWITCH TESTS
PLUNGER POSITION CONTINUITY BETWEEN
Released (Extended) Pins1&2
Compressed (Retracted) Pins3&4,5&6
(3) If the switch fails any of the continuity tests,
replace the faulty brake lamp switch as required.
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.
(1) Disconnect and isolate the battery negative
cable.
(2) Disconnect the instrument panel wire harness
connector for the brake lamp switch from the switch
connector receptacle (Fig. 5).
(3) Grasp the brake lamp switch housing firmly
and rotate the switch counterclockwise about 30
degrees to align the tabs on the locking collar with
the keyed mounting hole in the steering column sup-
port bracket.
(4) Pull the switch straight back from the mount-
ing hole to remove it from the steering column sup-
port bracket.
Fig. 4 Brake Lamp Switch Terminal Identification
1 - TERMINAL PINS
2 - PLUNGER TEST POSITIONS
Fig. 5 Brake Lamp Switch Remove/Install
1 - STEERING COLUMN SUPPORT
2 - WIRE HARNESS CONNECTOR
3 - LEVER
4 - BRAKE LAMP SWITCH
5 - BRAKE PEDAL ARM
KJLAMPS/LIGHTING - EXTERIOR 8L - 17
BRAKE LAMP SWITCH (Continued)

(5) Discard the removed brake lamp switch.
CAUTION: Always replace a removed brake lamp
switch with a new unit. This is a one time compo-
nent and is not intended for reinstallation.
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.
CAUTION: Always replace a removed brake lamp
switch with a new unit. This is a one time compo-
nent and is not intended for reinstallation.
(1) While holding the brake pedal depressed, align
the tabs on the brake lamp switch locking collar with
the keyed mounting hole in the steering column sup-
port bracket (Fig. 5).
(2) Still holding the brake pedal depressed, insert
the tabs on the brake lamp switch housing through
the keyed mounting hole in the steering column sup-
port bracket until the switch is firmly seated against
the bracket.
(3) Still holding the brake pedal depressed, rotate
the switch clockwise about 30 degrees to lock the
tabs on the brake lamp switch locking collar to the
keyed mounting hole in the steering column support
bracket.
(4) Release the brake pedal.
CAUTION: Do not pull up on the brake pedal before
the switch plunger adjustment has been completed.
(5) Rotate the plunger adjustment release lever
clockwise until it locks into place parallel to the
brake lamp switch connector receptacle. This action
will set the switch plunger length to a final adjust-
ment position and cannot be undone. If not per-
formed properly the first time, a new brake lamp
switchmustbe installed.(6) Reconnect the instrument panel wire harness
connector for the brake lamp switch to the switch
connector receptacle.
(7) Reconnect the battery negative cable.
CENTER HIGH MOUNTED
STOP LAMP BULB
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the Center High Mounted Stop Lamp
(CHMSL) unit from the roof panel. (Refer to 8 -
ELECTRICAL/LAMPS/LIGHTING - EXTERIOR/
CENTER HIGH MOUNTED STOP LAMP UNIT -
REMOVAL).
(3) Firmly grasp the socket on the back of the
CHMSL unit housing.
(4) Rotate the socket on the back of the CHMSL
unit housing counterclockwise about 30 degrees (Fig.
6).
(5) Pull the socket and bulb straight out of the
back of CHMSL unit housing.
(6) Pull the bulb straight out of the CHMSL unit
socket.
Fig. 6 Center High Mounted Stop Lamp Bulb
Remove/Install
1 - CHMSL UNIT
2 - BULB
3 - SOCKET
4 - BODY WIRE HARNESS CONNECTOR
8L - 18 LAMPS/LIGHTING - EXTERIORKJ
BRAKE LAMP SWITCH (Continued)

INSTALLATION
CAUTION: Always use the correct bulb size and
type for replacement. An incorrect bulb size or type
may overheat and cause damage to the lamp, the
socket and/or the lamp wiring.
(1) Align the base of the bulb with the receptacle
in the Center High Mounted Stop Lamp (CHMSL)
unit socket.
(2) Push the bulb straight into the CHMSL unit
socket until it is firmly seated.
(3) Align the socket and bulb with the socket open-
ing on the back of CHMSL unit housing.
(4) Push the socket and bulb straight into the
CHMSL unit housing until it is firmly seated (Fig. 6).
(5) Rotate the socket on the back of the CHMSL
unit housing clockwise about 30 degrees.
(6) Reinstall the CHMSL unit onto the roof panel.
(Refer to 8 - ELECTRICAL/LAMPS/LIGHTING -
EXTERIOR/CENTER HIGH MOUNTED STOP
LAMP UNIT - INSTALLATION).
(7) Reconnect the battery negative cable.
CENTER HIGH MOUNTED
STOP LAMP UNIT
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the two screws that secure the Center
High Mounted Stop Lamp (CHMSL) unit to the rear
of the roof panel (Fig. 7).
(3) Pull the CHMSL unit away from the roof panel
far enough to access and disconnect the wire harness
connector for the CHMSL unit from the lamp socket
pigtail wire.
(4) Remove the CHMSL unit from the roof panel.
INSTALLATION
(1) Position the Center High Mounted Stop Lamp
(CHMSL) unit to the roof panel.
(2) Reconnect the wire harness connector for the
CHMSL unit to the lamp socket pigtail wire (Fig. 7).
(3) Position the CHMSL unit into the roof panel
opening.
(4) Install and tighten the two screws that secure
the CHMSL unit to the rear of the roof panel.
Tighten the screws to 2 N´m (21 in. lbs.).
(5) Reconnect the battery negative cable.
COMBINATION FLASHER
DESCRIPTION
The combination flasher for this model is integral
to the hazard switch located in the center of the
instrument panel, just above the radio. The combina-
tion flasher is a smart relay that functions as both
the turn signal system and the hazard warning sys-
tem flasher. The combination flasher contains active
electronic Integrated Circuitry (IC) elements. This
flasher is designed to handle the current flow
requirements of the factory-installed lighting. If sup-
plemental lighting is added to the turn signal lamp
circuits, such as when towing a trailer with lights,
the combination flasher will automatically try to
compensate to keep the flash rate the same.
The combination flasher cannot be repaired or
adjusted and, if faulty or damaged, the hazard switch
unit must be replaced.
OPERATION
The combination flasher has the following inputs and
outputs: fused B(+), fused ignition switch output, right
turn signal sense, left turn signal sense, and one output
each for the right and left turn signal circuits. The com-
bination flasher also receives an internal input through
the closed contacts of the hazard switch and, on vehicles
equipped with the optional Vehicle Theft Security Sys-
tem (VTSS), the flasher receives an input from the Body
Control Module (BCM) in order to flash the turn signal
lamps as an optical alert feature of that system. Con-
Fig. 7 Center High Mounted Stop Lamp Remove/
Install
1 - ROOF PANEL
2 - BODY WIRE HARNESS CONNECTOR
3 - BULB SOCKET
4 - CHMSL
5 - SCREW (2)
6 - PLASTIC NUT (2)
KJLAMPS/LIGHTING - EXTERIOR 8L - 19
CENTER HIGH MOUNTED STOP LAMP BULB (Continued)

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.
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the end cap from the driver side out-
board end of the instrument panel. (Refer to 23 -
BODY/INSTRUMENT PANEL/INSTRUMENT
PANEL END CAP - REMOVAL).
(3) Remove the Daytime Running Lamp (DRL)
relay by grasping it firmly and pulling it straight out
from the receptacle in the Junction Block (JB) (Fig.
9).
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.
(1) Position the Daytime Running Lamp (DRL)
relay to the proper receptacle in the Junction Block
(JB) (Fig. 9).
(2) Align the DRL relay terminals with the termi-
nal cavities in the JB receptacle.
(3) Push firmly and evenly on the top of the DRL
relay until the terminals are fully seated in the ter-
minal cavities in the JB receptacle.
(4) Reinstall the end cap onto the driver side out-
board end of the instrument panel. (Refer to 23 -
BODY/INSTRUMENT PANEL/INSTRUMENT
PANEL END CAP - INSTALLATION).
(5) Reconnect the battery negative cable.
FRONT FOG LAMP BULB
REMOVAL
(1) Turn the front wheels full lock in the direction
of the fog lamp bulb that is to be changed.
(2) Disconnect and isolate the battery negative
cable.
(3) Reach into the front wheel opening to unsnap
and lift the cover over the access hole at the front of
the front wheelhouse splash shield (Fig. 10).
(4) Reach through the access hole and firmly grasp
the socket on the back of the front fog lamp unit
housing.
(5) Rotate the socket on the back of the front fog
lamp unit housing counterclockwise about 30
degrees.
CAUTION: Do not contaminate the bulb glass by
touching it with your fingers or by allowing it to
contact other oily surfaces. Shortened bulb life will
result.
Fig. 9 Junction Block - Outboard Side (RHD Shown
- Rotate 180É for LHD)
1 - JB/BCM CONNECTOR
2 - HIGH BEAM RELAY
3 - DRL RELAY
KJLAMPS/LIGHTING - EXTERIOR 8L - 21
DAYTIME RUNNING LAMP RELAY (Continued)

(6) Pull the socket and bulb straight out of the
front fog lamp unit housing and through the access
hole into the front wheel opening area.
(7) Pull the bulb straight out of the front fog lamp
unit socket.
INSTALLATION
CAUTION: Always use the correct bulb size and
type for replacement. An incorrect bulb size or type
may overheat and cause damage to the lamp, the
socket and/or the lamp wiring.
CAUTION: Do not contaminate the bulb glass by
touching it with your fingers or by allowing it to
contact other oily surfaces. Shortened bulb life will
result.
(1) Align the base of the bulb with the receptacle
in the front fog lamp unit socket.
(2) Push the bulb straight into the front fog lamp
unit socket until it is firmly seated.
(3) Position the socket and bulb through the access
hole in the front wheelhouse splash shield and align
it with the socket opening on the back of the front
fog lamp unit housing (Fig. 10).
(4) Push the socket and bulb straight into the
front fog lamp unit housing until it is firmly seated.
(5) Rotate the socket on the back of the front fog
lamp unit housing clockwise about 30 degrees.
(6) Lower and snap shut the access cover over the
hole at the front of the front wheelhouse splash
shield.
(7) Reconnect the battery negative cable.
FRONT FOG LAMP RELAY
DESCRIPTION
The front fog lamp relay is located in the Junction
Block (JB) on the driver side outboard end of the
instrument panel in the passenger compartment of
the vehicle. The front fog lamp relay is a conven-
tional International Standards Organization (ISO)
micro relay (Fig. 11). Relays conforming to the ISO
specifications have common physical dimensions, cur-
rent capacities, terminal patterns, and terminal func-
tions. The relay is contained within a small,
rectangular, molded plastic housing and is connected
to all of the required inputs and outputs by five inte-
gral male spade-type terminals that extend from the
bottom of the relay base.
The front fog lamp relay cannot be adjusted or
repaired and, if faulty or damaged, the unit must be
replaced.
OPERATION
The front fog lamp 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 fog lamps. 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
Fig. 10 Front Fog Lamp Bulb Remove/Install
1 - FRONT WHEELHOUSE SPLASH SHIELD
2 - ACCESS HOLE
3 - SOCKET
4 - BULB
Fig. 11 ISO Micro Relay
30 - COMMON FEED
85 - COIL GROUND
86 - COIL BATTERY
87 - NORMALLY OPEN
87A - NORMALLY CLOSED
8L - 22 LAMPS/LIGHTING - EXTERIORKJ
FRONT FOG LAMP BULB (Continued)

LIGHTING - EXTERIOR/FRONT LAMP UNIT -
REMOVAL).
(3) Firmly grasp the socket on the back of the
front lamp unit housing for the bulb that is being
removed (Fig. 18).
(4) Rotate the socket on the back of the front lamp
unit housing counterclockwise about 30 degrees.
(5) Pull the socket and bulb straight out of the
back of the front lamp unit housing.
(6) Pull the bulb straight out of the front lamp
unit socket.
INSTALLATION
CAUTION: Always use the correct bulb size and
type for replacement. An incorrect bulb size or type
may overheat and cause damage to the lamp, the
socket and/or the lamp wiring.
(1) Align the base of the bulb with the receptacle
in the front lamp unit socket.
(2) Push the bulb straight into the front lamp unit
socket until it is firmly seated.
(3) Align the socket and bulb with the socket open-
ing on the back of the front lamp unit housing (Fig.
18).
(4) Push the socket and bulb straight into the
front lamp unit housing until it is firmly seated.
(5) Rotate the socket on the back of the front lamp
unit housing clockwise about 30 degrees.
(6) Reinstall the front lamp unit into the front
bumper fascia. (Refer to 8 - ELECTRICAL/LAMPS/
LIGHTING - EXTERIOR/FRONT LAMP UNIT -
INSTALLATION).
(7) Reconnect the battery negative cable.
FRONT LAMP UNIT
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the screw that secures the outboard
end of the front lamp unit to the front bumper fascia
(Fig. 19).
(3) Pull the outboard end of the front lamp unit
away from the front bumper fascia far enough to dis-
Fig. 17 Front Fog Lamp Adjusting Screw
1 - FRONT BUMPER FASCIA
2 - ADJUSTING SCREW
3 - FRONT FOG LAMP UNIT
Fig. 18 Front Lamp Bulb Remove/Install
1 - FRONT LAMP UNIT
2 - SIDE MARKER SOCKET
3 - FRONT FASCIA
4 - HEADLAMP & DASH WIRE HARNESS
5 - MOUNTING TAB
6 - PARK/TURN SIGNAL SOCKET
Fig. 19 Front Lamp Unit Remove/Install
1 - FRONT LAMP UNIT
2 - FRONT BUMPER FASCIA
3 - SCREW (1)
KJLAMPS/LIGHTING - EXTERIOR 8L - 27
FRONT LAMP BULB (Continued)

engage the tab on the inboard end of the front lamp
unit housing from the receptacle in the fascia.
(4) Pull the front lamp unit away from the front
bumper fascia far enough to access and disconnect
the wire harness connector(s) for the front lamp unit
from the lamp socket pigtail wire(s).
(5) Remove the front lamp unit from the front
bumper fascia.
INSTALLATION
(1) Position the front lamp unit to the front
bumper fascia.
(2) Reconnect the wire harness connector(s) for the
front lamp unit to the lamp socket pigtail wire(s).
(3) Engage the tab on the inboard end of the front
lamp unit housing into the receptacle in the front
bumper fascia.
(4) Position the outboard end of the front lamp
unit housing to the front bumper fascia.
(5) Install and tighten the screw that secures the
outboard end of the front lamp unit housing to the
front bumper fascia (Fig. 19). Tighten the screw to 2
N´m (20 in. lbs.).
(6) Reconnect the battery negative cable.
FRONT POSITION LAMP BULB
REMOVAL
The front position lamps are integral to the head-
lamp units on vehicles manufactured for certain mar-
kets where these lamps are required.
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the headlamp unit from the front grille
opening reinforcement. (Refer to 8 - ELECTRICAL/
LAMPS/LIGHTING - EXTERIOR/HEADLAMP UNIT
- REMOVAL).
(3) Rotate the front position lamp socket near the
bottom of the headlamp unit housing counterclock-
wise about 30 degrees (Fig. 20).
(4) Pull the socket and bulb straight out of the
headlamp unit housing.
(5) Pull the bulb straight out of the front position
lamp socket.
INSTALLATION
The front position lamps are integral to the head-
lamp units on vehicles manufactured for certain mar-
kets where these lamps are required.CAUTION: Always use the correct bulb size and
type for replacement. An incorrect bulb size or type
may overheat and cause damage to the lamp, the
socket and/or the lamp wiring.
(1) Align the base of the bulb with the receptacle
in the front position lamp socket.
(2) Push the bulb straight into the front position
lamp socket until it is firmly seated.
(3) Align the socket and bulb with the socket open-
ing near the bottom of the headlamp unit housing
(Fig. 20).
(4) Push the socket and bulb straight into the
headlamp unit housing until it is firmly seated
(5) Rotate the front position lamp socket near the
bottom of the headlamp unit housing clockwise about
30 degrees.
(6) Reinstall the headlamp unit onto the grille
opening reinforcement. (Refer to 8 - ELECTRICAL/
LAMPS/LIGHTING - EXTERIOR/HEADLAMP UNIT
- INSTALLATION).
(7) Reconnect the battery negative cable.
(8) Confirm proper headlamp unit alignment.
(Refer to 8 - ELECTRICAL/LAMPS/LIGHTING -
EXTERIOR/HEADLAMP UNIT - ADJUSTMENTS).
Fig. 20 Front Position Lamp Bulb Remove/Install
1 - HEADLAMP HOUSING
2 - SOCKET
3 - BULB
8L - 28 LAMPS/LIGHTING - EXTERIORKJ
FRONT LAMP UNIT (Continued)

HEADLAMP BULB
REMOVAL
NORTH AMERICA
(1) Disconnect and isolate the battery negative
cable.
(2) Reach behind the headlamp unit from the
engine compartment side of the upper radiator cross-
member to access the headlamp bulb lock ring (Fig.
23).
(3) Firmly grasp the lock ring on the back of the
headlamp unit housing.
(4) Rotate the lock ring on the back of the head-
lamp unit housing counterclockwise about 30
degrees.
CAUTION: Do not contaminate the bulb glass by
touching it with your fingers or by allowing it to
contact other oily surfaces. Shortened bulb life will
result.
(5) Pull the lock ring, socket, and bulb straight out
of the headlamp unit housing and up from behind
the upper radiator crossmember (Fig. 24).
(6) Disconnect the grille opening reinforcement
wire harness connector for the headlamp bulb from
the connector receptacle on the bulb socket.
(7) Remove the bulb and bulb socket from the lock
ring as a unit.
REST-OF-WORLD
(1) Disconnect and isolate the battery negative
cable.(2) Remove the headlamp unit from the grille
opening reinforcement. (Refer to 8 - ELECTRICAL/
LAMPS/LIGHTING - EXTERIOR/HEADLAMP UNIT
- REMOVAL).
(3) Firmly grasp the tab of the headlamp boot seal
on the back of the headlamp unit housing (Fig. 25).
(4) Pull the tab away from the back of the head-
lamp unit housing to remove the boot seal from the
housing and the bulb base.
Fig. 23 Headlamp Bulb Lock Ring
1 - HEADLAMP UNIT HOUSING
2 - LOCK RING
3 - SOCKET & BULB
Fig. 24 Headlamp Bulb Remove/Install
1 - HEADLAMP BULB
2 - SOCKET
3 - LOCK RING
Fig. 25 Headlamp Bulb Boot Seal Remove
1 - LEVELING MOTOR (IF EQUIPPED)
2 - BOOT SEAL
3 - FRONT POSITION LAMP
4 - ADJUSTING SCREW
5-TAB
6 - BULB BASE
KJLAMPS/LIGHTING - EXTERIOR 8L - 31