8 - electrical JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual

MULTI-FUNCTION SWITCH - INSTALLATION -
LEFT MULTI-FUNCTION SWITCH).
(6) Reinstall the clockspring onto the multi-func-
tion switch housing. (Refer to 8 - ELECTRICAL/RE-
STRAINTS/CLOCKSPRING - INSTALLATION).
(7) Reconnect the battery negative cable.
PARK/TURN SIGNAL LAMP
REMOVAL - BULBS
(1) Remove the headlamp module.
(2) Rotate the turn signal bulb socket 1/4 turn
counter clockwise.
(3) Remove the bulb socket from module.
(4) Remove the bulb from socket.
INSTALLATION - BULBS
(1) Press the bulb into socket.
(2) Position the bulb socket in module.
(3) Rotate the turn signal bulb socket 1/4 turn
clockwise.
(4) Install the headlamp module.
TAIL LAMP
DESCRIPTION
The taillamp module contains a housing, lens, and
three bulbs. A dual filament bulb is used for tail and
stop functions. A single filament bulb is used for turn
signal operations. A separate bulb is used for back-up
illumination.
OPERATION
All exterior lighting function are controlled by the
multifunction switch. Stop lamp functions are con-
trolled by the stoplamp switch. The back-up lamps
are controlled by the back-up lamp switch.
REMOVAL
REMOVAL - BULBS
The brake, turn signal, back-up, and side marker
lamp bulbs are incorporated into the tail lamp.
(1) Remove the tail lamp.
(2) Rotate the bulb socket counterclockwise.
(3) Separate the socket from the lamp
(4) Remove the bulb from the socket (Fig. 32).
REMOVAL - LAMP
The brake, turn signal, back-up, and side marker
lamps are incorporated in the tail lamp.
(1) Remove the screws attaching the lamp to body
(Fig. 33).
(2) Disengage the lamp from the alignment pin.
(3) Disconnect lamp wire harness connector.
(4) Separate lamp from vehicle.
Fig. 31 Multi-Function Switch Mounting Housing
Screw Remove/Install
1 - CLOCK SPRING
2 - SCREW
3 - MULTI-FUNCTION SWITCH MOUNTING HOUSING
Fig. 32 Tail Lamp Bulbs
1 - TAIL/STOP BULB
2 - TAIL LAMP
3 - BACK-UP BULB
4 - TURN SIGNAL BULB
WJLAMPS/LIGHTING - EXTERIOR 8L - 25
LEFT MULTI-FUNCTION SWITCH (Continued)

LAMPS/LIGHTING - INTERIOR
TABLE OF CONTENTS
page page
LAMPS/LIGHTING - INTERIOR
SPECIFICATIONS
...................................28
COURTESY LAMP
REMOVAL
REMOVAL - BULB.....................29
REMOVAL - LAMP.....................29
INSTALLATION
INSTALLATION - BULB.................29
INSTALLATION - LAMP.................29
DOME LAMP
REMOVAL
REMOVAL - BULB.....................29
REMOVAL - LAMP.....................29
INSTALLATION
INSTALLATION - BULB.................29
INSTALLATION - LAMP.................29
DOOR AJAR SWITCH
DESCRIPTION
DESCRIPTION - DOOR AJAR SWITCH.....29
DESCRIPTION - FLIP UP GLASS AJAR
SWITCH............................29DESCRIPTION - LIFTGATE AJAR SWITCH . . 30
OPERATION
OPERATION - DOOR AJAR SWITCH.......30
OPERATION - FLIP UP GLASS AJAR
SWITCH............................30
OPERATION - LIFTGATE AJAR SWITCH....30
DIAGNOSIS AND TESTING - DOOR AJAR
SWITCH............................30
GLOVE BOX LAMP/SWITCH
REMOVAL.............................31
INSTALLATION.........................31
READING LAMP
DESCRIPTION.........................32
OPERATION...........................32
REMOVAL.............................32
INSTALLATION.........................32
TRANS RANGE INDICATOR ILLUMINATION
DESCRIPTION.........................32
VANITY LAMP
REMOVAL.............................32
INSTALLATION.........................32
LAMPS/LIGHTING - INTERIOR
SPECIFICATIONS
CAUTION: Do not use bulbs other than the bulbs
listed in the Bulb Application Table. Damage to
lamp can result.
Service procedures for most of the lamps in the
instrument panel, are located in Electrical, Instru-
ment Panel. Some components have lamps that can
only be serviced by an Authorized Service Center
(ASC) after the component is removed from the vehi-
cle.
LAMP BULB TYPE
A/C HEATER NOT SERVICED
ASH RECEIVER 161
CLIMATE CONTROL 74
PASSENGER ASSIST
HANDLE214±2
FRONT READING 192
GLOVE COMPARTMENT 194
TELLTALE/HAZARD LAMP 74
HEATER NOT SERVICED
OVERHEAD CONSOLE 192
RADIO ASC
REAR CARGO 214±2
UNDER PANEL COURTESY 906
CLUSTER ILLUMINATION 103
SUNVISOR VANITY CHRYSLER P/N
6501966
8L - 28 LAMPS/LIGHTING - INTERIORWJ

COURTESY LAMP
REMOVAL
REMOVAL - BULB
(1) Remove the door trim panel. (Refer to 23 -
BODY/DOOR - FRONT/TRIM PANEL - REMOVAL)
for the service procedures.
(2) Remove the bulb socket from the lamp.
(3) Remove the bulb from the socket.
REMOVAL - LAMP
(1) Remove door trim panel. (Refer to 23 - BODY/
DOOR - FRONT/TRIM PANEL - REMOVAL) for the
procedures.
(2) Disengage the electrical connectors.
(3) Depress the locking tabs and remove the lamp
module.
(4) Remove the bulb socket.
INSTALLATION
INSTALLATION - BULB
(1) Install the bulb in the socket.
(2) Install the bulb socket in the lamp.
(3) Install the door trim panel.
INSTALLATION - LAMP
(1) Install the bulb socket into the lamp module.
(2) Align the lamp module with the door trim
panel.
(3) Snap the lamp module into place.
(4) Install the door panel.
DOME LAMP
REMOVAL
REMOVAL - BULB
(1) Rotate the the grab handle down.
(2) Remove the screws retaining the grab handle/
dome lens.
(3) Remove the grab handle/lens from the module.
(4) Remove the bulb from the lamp terminals.
REMOVAL - LAMP
It will be necessary to partially remove the head-
liner to remove the bulb socket.
(1) Remove the screws holding the grab handle/
lens assembly to the headliner and roof panel.(2) Lower the headliner as needed. (Refer to 23 -
BODY/INTERIOR/HEADLINER - REMOVAL) for the
service procedure.
(3) Separate the lamp socket from the headliner
and roof panel.
(4) Disconnect the wire connector.
INSTALLATION
INSTALLATION - BULB
(1) Insert the bulb into the lamp terminals.
(2) Position the grab handle/lens on the lamp mod-
ule.
(3) Install the screws retaining the grab handle/
lens to the lamp module.
INSTALLATION - LAMP
(1) Position the lamp socket on the headliner and
roof panel.
(2) Connect the wire harness.
(3) Install the headliner.
(4) Position the grab handle/lens on the lamp mod-
ule.
(5) Install the screws retaining the grab handle/
lens into the lamp socket.
DOOR AJAR SWITCH
DESCRIPTION
DESCRIPTION - DOOR AJAR SWITCH
The door ajar switches are integral to the door
latch mechnicism. The front door ajar switches are
actuated by the front door latch mechanisms, and are
hard wired between a body ground and the Driver
Door Module (DDM) or the Passenger Door Module
(PDM). The rear door ajar switches are actuated by
the rear door latch mechanisms, and are hard wired
between a body ground and the Body Control Module
(BCM) through the rear door and body wire har-
nesses.
The door ajar switches cannot be adjusted or
repaired and, if faulty or damaged, the door latch
unit must be replaced. (Refer to 23 - BODY/DOOR -
FRONT/LATCH - REMOVAL) or (Refer to 23 -
BODY/DOORS - REAR/LATCH - REMOVAL) for the
service procedures. For complete circuit diagrams,
refer to the appropriate wiring information.
DESCRIPTION - FLIP UP GLASS AJAR SWITCH
The liftgate flip-up glass ajar switch is integral to
the liftgate flip-up glass latch mechnicism. The lift-
gate flip-up glass ajar switch is actuated by the lift-
gate flip-up glass latch mechanism, and is hard
WJLAMPS/LIGHTING - INTERIOR 8L - 29

wired between a body ground, the Body Control Mod-
ule (BCM) and the rear wiper motor module through
the liftgate and body wire harnesses.
The liftgate flip-up glass ajar switch cannot be
adjusted or repaired and, if faulty or damaged, the
liftgate flip-up glass latch unit must be replaced.
(Refer to 23 - BODY/DECKLID/HATCH/LIFTGATE/
TAILGATE/FLIP-UP GLASS LATCH - REMOVAL)
for the service procedures. For complete circuit dia-
grams, refer to the appropriate wiring information.
DESCRIPTION - LIFTGATE AJAR SWITCH
The two liftgate ajar switches are integral to the
two liftgate latch mechanisms. The two liftgate ajar
switches are actuated by the liftgate latch mecha-
nisms, and are hard wired with each other between a
body ground and the Body Control Module (BCM)
through the liftgate and body wire harnesses.
The liftgate ajar switches cannot be adjusted or
repaired and, if faulty or damaged, the liftgate latch
unit must be replaced. (Refer to 23 - BODY/DECK-
LID/HATCH/LIFTGATE/TAILGATE/LATCH -
REMOVAL) for the service procedures. For complete
circuit diagrams, refer to the appropriate wiring
information.
OPERATION
OPERATION - DOOR AJAR SWITCH
The front door ajar switches close a path to ground
for the DDM or the PDM when a front door is
opened, and opens the ground path when a front door
is closed. The rear door ajar switches close a path to
ground for the BCM when a rear door is opened, and
opens the ground path when a rear door is closed.
The DDM, PDM, or BCM read the switch status then
send the proper switch status messages to other
modules over the Programmable Communications
Interface (PCI) data bus network. The door ajar
switch status message is used by the BCM as an
input for Vehicle Theft Security System (VTSS) oper-
ation.
OPERATION - FLIP UP GLASS AJAR SWITCH
The liftgate flip-up glass ajar switch can close a
path to ground for the BCM and the rear wiper
motor module when the liftgate flip-up glass is
opened, and opens the ground path when the liftgate
flip-up glass is closed. The rear wiper motor module
uses the liftgate flip-up glass ajar switch input to
control the rear wiper operation, and will park the
rear wiper blade if this input indicates that the lift-
gate flip-up glass is ajar. The BCM reads the switch
status then sends the proper switch status message
to other modules over the Programmable Communi-cations Interface (PCI) data bus network. The liftgate
flip-up glass ajar switch status message is used by
the BCM as an input for Vehicle Theft Security Sys-
tem (VTSS) operation.
OPERATION - LIFTGATE AJAR SWITCH
Each of the liftgate ajar switches can close a path
to ground for the BCM when the liftgate is opened,
and opens the ground path when the liftgate is
closed. The BCM reads the switch status then sends
the proper switch status message to other modules
over the Programmable Communications Interface
(PCI) data bus network. The liftgate ajar switch sta-
tus message is used by the BCM as an input for
Vehicle Theft Security System (VTSS) operation.
DIAGNOSIS AND TESTING - DOOR AJAR
SWITCH
The following diagnosis and testing is only
for the chime functions. For interior lamp diag-
nosis, refer to the appropriate wiring informa-
tion.The driver door ajar switch is hard wired to the
Driver Door Module (DDM). The DDM communicates
the switch status to the other modules in the vehicle
on the Programmable Communications Interface
(PCI) data bus network. The following test will diag-
nose a faulty driver door ajar switch and circuits. For
complete circuit diagrams, refer to the appropriate
wiring information.
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, REFER TO ELECTRICAL, RESTRAINTS
BEFORE ATTEMPTING ANY STEERING WHEEL,
STEERING COLUMN, OR INSTRUMENT PANEL
COMPONENT DIAGNOSIS OR SERVICE. FAILURE
TO TAKE THE PROPER PRECAUTIONS COULD
RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT
AND POSSIBLE PERSONAL INJURY.
(1) Check that the interior lighting switch on the
control stalk of the left multi-function switch is not
in the dome lamp disable position. Open the driver
side front door and note whether the interior lamps
light. They should light. If OK, refer to Key-In Igni-
tion Switch in the Diagnosis and Testing section of
this group for further diagnosis of the chime warning
system. If not OK, go to Step 2.
(2) Disconnect and isolate the battery negative
cable. Remove the trim panel from the driver front
door and disconnect the 4-way door wire harness con-
nector from the front door latch connector. Check for
continuity between the ground circuit of the 4-way
door wire harness connector and a good ground.
There should be continuity. If OK, go to Step 3. If not
OK, repair the ground circuit.
8L - 30 LAMPS/LIGHTING - INTERIORWJ
DOOR AJAR SWITCH (Continued)

(3) Disconnect the door wire harness connector
from the Driver Door Module (DDM) connector.
Check for continuity between the driver door ajar
switch sense circuit of the door wire harness connec-
tor for the DDM and a good ground. There should be
no continuity. If OK, go to Step 4. If not OK, repair
the shorted driver door ajar switch sense circuit.
(4) Check for continuity between the driver door
ajar switch sense circuit of the door wire harness
connector for the DDM and the 4-way door wire har-
ness connector for the front door latch. There should
be continuity. If OK, go to Step 5. If not OK, repair
the open driver door ajar switch sense circuit.
(5) Check for continuity between the ground cir-
cuit terminal and the driver door ajar switch sense
circuit terminal of the front door latch connector.
There should be continuity with the driver side front
door open, and no continuity with the door closed. If
OK, use a DRBIIItscan tool and the proper Diagnos-
tic Procedures manual to test the operation of the
PCI data bus and the DDM. If not OK, replace the
faulty driver side front door latch unit.
GLOVE BOX LAMP/SWITCH
REMOVAL
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, REFER TO ELECTRICAL, RESTRAINTS
BEFORE ATTEMPTING ANY STEERING WHEEL,
STEERING COLUMN, OR INSTRUMENT PANEL
COMPONENT DIAGNOSIS OR SERVICE. FAILURE
TO TAKE THE PROPER PRECAUTIONS COULD
RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT
AND POSSIBLE PERSONAL INJURY.
(1) Disconnect and isolate the battery negative
cable.
(2) Roll down the glove box from the instrument
panel.(Refer to 23 - BODY/INSTRUMENT PANEL/
GLOVE BOX - REMOVAL) for the procedures.
(3) Remove the lower right center bezel from the
instrument panel.(Refer to 23 - BODY/INSTRU-
MENT PANEL - REMOVAL) for the procedures.
(4) Reach through the glove box opening and
depress the retaining latches on the top and bottom
of the glove box lamp and switch housing.
(5) While holding the retaining latches depressed,
push the glove box lamp and switch out through the
mounting hole (Fig. 1).
(6) Disconnect the instrument panel wire harness
connector from the glove box lamp and switch con-
nector.
(7) Remove the glove box lamp and switch.
INSTALLATION
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, REFER TO ELECTRICAL, RESTRAINTS
BEFORE ATTEMPTING ANY STEERING WHEEL,
STEERING COLUMN, OR INSTRUMENT PANEL
COMPONENT DIAGNOSIS OR SERVICE. FAILURE
TO TAKE THE PROPER PRECAUTIONS COULD
RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT
AND POSSIBLE PERSONAL INJURY.
(1) Position the glove box lamp and switch to the
instrument panel.
(2) Reconnect the instrument panel wire harness
connector to the glove box lamp and switch connector.
(3) Align the glove box lamp and switch housing
with the mounting hole in the instrument panel
glove box opening upper reinforcement.
(4) Push the glove box lamp and switch into the
mounting hole until the retaining latches are fully
engaged.
(5) Install the lower right center bezel onto the
instrument panel. (Refer to 23 - BODY/INSTRU-
MENT PANEL - INSTALLATION) for the proce-
dures.
(6) Roll the glove box back up into the instrument
panel.(Refer to 23 - BODY/INSTRUMENT PANEL/
GLOVE BOX - INSTALLATION) for the procedures.
(7) Reconnect the battery negative cable.
Fig. 1 Glove Box Lamp and Switch Remove/Install
1 - GLOVE BOX OPENING UPPER REINFORCEMENT
2 - WIRE HARNESS CONNECTOR
3 - GLOVE BOX LAMP & SWITCH
4-LATCH
5 - MOUNTING HOLE
WJLAMPS/LIGHTING - INTERIOR 8L - 31
DOOR AJAR SWITCH (Continued)

READING LAMP
DESCRIPTION
The overhead console in this vehicle is equipped
with two individual reading and courtesy lamps.Each
lamp has its own switch, bulb, reflector and lens; but
both lamps share a common lamp housing within the
overhead console.
The overhead console reading and courtesy lamps
operate on battery current that is provided at all
times, regardless of the ignition switch position. The
ground feed for the lamps is switched through the
integral reading and courtesy lamp switches or
through the door jamb switches.
The reading and courtesy lamp lenses and the
lamp housing and reflector unit are serviced only as
a unit with the overhead console housing.The reading
and courtesy lamp switches, bulb holders and wiring
are only available as part of the overhead console
wire harness.
For service of the reading and courtesy lamp bulbs,
(Refer to 8 - ELECTRICAL/LAMPS/LIGHTING -
INTERIOR/READING LAMP - REMOVAL). For diag-
nosis of the reading and courtesy lamps, refer to the
appropriate wiring information.
OPERATION
All reading and courtesy lamps located in the over-
head console are activated by the door jamb switches.
When all of the doors are closed, these lamps can be
individually activated by depressing the correspond-
ing lens. When any door is open, depressing the lamp
lenses to activate the lamp switches will not turn the
lamps off.
REMOVAL
(1) Remove the overhead console.
(2) Rotate the console until the bulb is visible (Fig.
2).
(3) Grasp the bulb and remove from the socket.
INSTALLATION
(1) Push the bulb into the bulb socket.
(2) Install the console on the headliner and roof
panel.
(3) Align the screw hole and install the screw.
TRANS RANGE INDICATOR
ILLUMINATION
DESCRIPTION
The Transmission Range Indicator Lamp, mounted
on the floor console, uses electroluminescent technol-ogy as the light source. This lamp requires a 120 volt
AC signal that is provided by a power converter
included as part of the assembly. The module is not
serviceable separately. Because of a potential shock
hazard, diagnostic testing of the lamp assembly
should be avoided. Refer to TRANSMISSION, Range
Selector Assembly Removal and Installation.
VANITY LAMP
REMOVAL
(1) Fold down the visor.
(2) Using a small flat blade, and staring at the
base of the lamp assembly, carefully pry the base of
the lamp from the visor.
(3) Disconnect the vanity lamp visor and remove
the lamp from the vehicle.
INSTALLATION
(1) Position the lamp at the visor and connect the
wire connector.
(2) Press the lamp in place.
Fig. 2 Overhead Console Reading Lamp Bulb
1 - BULB
8L - 32 LAMPS/LIGHTING - INTERIORWJ

MESSAGE SYSTEMS
TABLE OF CONTENTS
page page
OVERHEAD CONSOLE
DESCRIPTION..........................1
OPERATION............................1
STANDARD PROCEDURE
STANDARD PROCEDURE - MODULE LAMP
REPLACEMENT.......................1
STANDARD PROCEDURE - COURTESY
LAMP REPLACEMENT..................1
STANDARD PROCEDURE - MODULE LENS
REPLACEMENT.......................2
STANDARD PROCEDURE - ELECTRONIC
VEHICLE INFORMATION CENTER
PROGRAMMING.......................2
STANDARD PROCEDURE - COMPASS
DEMAGNETIZING......................4
STANDARD PROCEDURE - COMPASS
CALIBRATION.........................5
STANDARD PROCEDURE - COMPASS
VARIATION ADJUSTMENT................5
REMOVAL.............................5
INSTALLATION..........................6
SPECIAL TOOLS
OVERHEAD CONSOLE SYSTEMS.........6
ELECTRONIC VEHICLE INFO CENTER
DESCRIPTION..........................6OPERATION............................9
DIAGNOSIS AND TESTING - ELECTRONIC
VEHICLE INFORMATION CENTER.........9
STANDARD PROCEDURE - TIRE PRESSURE
SYSTEM TEST.......................10
REMOVAL.............................10
INSTALLATION.........................10
UNIVERSAL TRANSMITTER
DESCRIPTION.........................11
OPERATION...........................11
DIAGNOSIS AND TESTING - UNIVERSAL
TRANSMITTER.......................11
AMBIENT TEMP SENSOR
DESCRIPTION.........................12
OPERATION...........................12
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - AMBIENT
TEMPERATURE SENSOR...............12
DIAGNOSIS AND TESTING - AMBIENT
TEMPERATURE SENSOR CIRCUIT........12
REMOVAL.............................12
INSTALLATION.........................13
OVERHEAD CONSOLE
DESCRIPTION
An overhead console is standard factory-installed
equipment on this model. The overhead console
includes the Electronic Vehicle Information Center
(EVIC) and two reading and courtesy lamps (Fig. 1).
On vehicles equipped with a power sunroof option,
the overhead console also houses the power sunroof
switch between the two reading and courtesy lamps.
The overhead console is mounted with one screw and
two snap-clips to a molded plastic retainer bracket
located above the headliner. The retainer bracket is
secured with adhesive to the inside surface of the
roof panel.
Following are general descriptions of the major
components used in the overhead console. Refer to
Overhead Consolein Wiring Diagrams for complete
circuit diagrams.
OPERATION
See the owner's manual in the vehicle glove box for
more information on the use and operation of the
various overhead console features.
STANDARD PROCEDURE
STANDARD PROCEDURE - MODULE LAMP
REPLACEMENT
(1) Remove the overhead console (Refer to 8 -
ELECTRICAL/OVERHEAD CONSOLE - REMOV-
AL).
(2) Using a flat blade screwdriver twist out socket/
lamp (Fig. 2).
(3) Replace lamp(s) as necessary.
STANDARD PROCEDURE - COURTESY LAMP
REPLACEMENT
(1) Open hood, disconnect and isolate the negative
battery cable.
WJMESSAGE SYSTEMS 8M - 1

(2) Remove the overhead console from the head-
liner (Refer to 8 - ELECTRICAL/OVERHEAD CON-
SOLE - REMOVAL).(3) Remove the lamp and socket assembly from the
overhead console.
(4) Remove the lamp bulb by pulling it straight
out of its socket.
STANDARD PROCEDURE - MODULE LENS
REPLACEMENT
(1) Remove the overhead console (Refer to 8 -
ELECTRICAL/OVERHEAD CONSOLE - REMOV-
AL).
(2) Remove the electronics module from the over-
head console. Refer to the procedure in this section.
(3) Unsnap the lens from the module and replace
lens as necessary.
STANDARD PROCEDURE - ELECTRONIC
VEHICLE INFORMATION CENTER
PROGRAMMING
EVIC PROGRAMMING MODE
The Electronic Vehicle Information Center (EVIC)
provides the vehicle operator with a user interface,
which allows the selection of several optional cus-
tomer programmable electronic features to suit indi-
vidual preferences. The EVIC must be placed into its
programming mode in order to view or change the
programmable features. To enter the EVIC program-
ming mode and to view or change the selected pro-
grammable features options, proceed as follows:
(1) Turn the ignition switch to the On position.
(2) Depress and release the Menu push button.
The first item in the programmable features menu
list will appear in the EVIC display.
(3) Momentarily depress and release the Menu
push button to step through the programmable fea-
tures list. Each programmable feature and its cur-
rently selected option will appear on the EVIC
display in the sequence shown in the Programmable
Features list that follows.
(4) Momentarily depress and release the Step push
button to step through the available options for the
programmable feature being displayed.
(5) The option that last appears in the display
with a programmable feature before exiting the pro-
gramming mode, becomes the newly selected pro-
grammable feature option.
(6) The EVIC exits the programming mode and
returns to its normal operating mode when the C/T
push button is depressed or when the end of the pro-
grammable features menu list is reached, whichever
occurs first.
Fig. 1 Overhead Console
1 - POWER SUNROOF SWITCH (IF EQUIPPED)
2 - READING AND COURTESY LAMPS
3 - UNIVERSAL GARAGE DOOR OPENER PUSH BUTTONS (IF
EQUIPPED)
4 - SCREW
5 - ELECTRONIC VEHICLE INFORMATION CENTER PUSH
BUTTONS
Fig. 2 Top of Overhead Console
1 - OVERHEAD CONSOLE HOUSING
2 - EVIC MODULE
3 - ILLUMINATION LAMPS
4 - SCREWS (4)
8M - 2 MESSAGE SYSTEMSWJ
OVERHEAD CONSOLE (Continued)

²RETRAIN TIRE SENSORS?- This program-
mable feature only applies to vehicles equipped with
the optional tire pressure monitoring system. The
options include Yes and No. The default is No. When
Yes is selected and the menu button is depressed, the
EVIC will enter the training mode starting with the
left front tire.
²EASY EXIT SEAT?- This programmable fea-
ture only applies to vehicles equipped with the
optional memory system. The options include Yes and
No. The default is No. When Yes is selected, the
driver seat moves rearward about 55 millimeters
(two inches) or to the farthest rearward position,
whichever comes first, when the key is removed from
the ignition switch lock cylinder. This provides addi-
tional ease for exiting from the vehicle. The seat will
automatically return to the memory system setting
position when the Driver 1 or Driver 2 button of the
memory switch on the door panel is depressed or, if
theREMOTE LINKED TO MEMORYprogramma-
ble feature is enabled, when the RKE Unlock button
is depressed. While not automatic, an easy entry fea-
ture can be obtained by enabling theEASY EXIT
SEATfeature and disabling theREMOTE LINKED
TO MEMORYfeature. Then theEASY EXIT SEAT
feature will move the seat back, but the RKE unlock
event will not reposition the seat. Thus, the seat
remains positioned for easy entry, and the memory
switch on the door panel can be depressed after
entering the vehicle to return the seat to the desired
memory position.
STANDARD PROCEDURE - COMPASS
DEMAGNETIZING
A degaussing tool (Special Tool 6029) is used to
demagnetize, or degauss, the overhead console for-
ward mounting screw and the roof panel above the
overhead console. Equivalent units must be rated as
continuous duty for 110/115 volts and 60 Hz. They
must also have a field strength of over 350 gauss at 7
millimeters (0.25 inch) beyond the tip of the probe.
To demagnetize the roof panel and the overhead
console forward mounting screw, proceed as follows:
(1) Be certain that the ignition switch is in the Off
position, before you begin the demagnetizing proce-
dure.
(2) Connect the degaussing tool to an electrical
outlet, while keeping the tool at least 61 centimeters
(2 feet) away from the compass unit.
(3) Slowly approach the head of the overhead con-
sole forward mounting screw with the degaussing
tool connected.
(4) Contact the head of the screw with the plastic
coated tip of the degaussing tool for about two sec-
onds.(5) With the degaussing tool still energized, slowly
back it away from the screw. When the tip of the tool
is at least 61 centimeters (2 feet) from the screw
head, disconnect the tool.
(6) Place a piece of paper approximately 22 by 28
centimeters (8.5 by 11 inches), oriented on the vehicle
lengthwise from front to rear, on the center line of
the roof at the windshield header (Fig. 3). The pur-
pose of the paper is to protect the roof panel from
scratches, and to define the area to be demagnetized.
(7) Connect the degaussing tool to an electrical
outlet, while keeping the tool at least 61 centimeters
(2 feet) away from the compass unit.
(8) Slowly approach the center line of the roof
panel at the windshield header, with the degaussing
tool connected.
(9) Contact the roof panel with the plastic coated
tip of the degaussing tool. Be sure that the template
is in place to avoid scratching the roof panel. Using a
slow, back-and-forth sweeping motion, and allowing
13 millimeters (0.50 inch) between passes, move the
tool at least 11 centimeters (4 inches) to each side of
the roof center line, and 28 centimeters (11 inches)
back from the windshield header.
(10) With the degaussing tool still energized,
slowly back it away from the roof panel. When the
Fig. 3 Roof Demagnetizing Pattern
8M - 4 MESSAGE SYSTEMSWJ
OVERHEAD CONSOLE (Continued)

tip of the tool is at least 61 centimeters (2 feet) from
the roof panel, disconnect the tool.
(11) Calibrate the compass and adjust the compass
variance (Refer to 8 - ELECTRICAL/OVERHEAD
CONSOLE - STANDARD PROCEDURE).
STANDARD PROCEDURE - COMPASS
CALIBRATION
CAUTION: Do not place any external magnets, such
as magnetic roof mount antennas, in the vicinity of
the compass. Do not use magnetic tools when ser-
vicing the overhead console.
The electronic compass unit features a self-cali-
brating design, which simplifies the calibration pro-
cedure. This feature automatically updates the
compass calibration while the vehicle is being driven.
This allows the compass unit to compensate for small
changes in the residual magnetism that the vehicle
may acquire during normal use. If the compass read-
ings appear to be erratic or out of calibration, per-
form the following calibration procedure. Also, new
service replacement Electronic Vehicle Information
Center (EVIC) modules must have their compass cal-
ibrated using this procedure. Do not attempt to cali-
brate the compass near large metal objects such as
other vehicles, large buildings, or bridges; or, near
overhead or underground power lines.
NOTE: Whenever an EVIC module is replaced, the
variance number must also be reset. Refer to Com-
pass Variation Adjustment in this group.
Calibrate the compass manually as follows:
(1) Turn the ignition switch to the On position. If
the compass/temperature data is not currently being
displayed, momentarily depress and release the C/T
push button to reach the compass/temperature dis-
play.
(2) Depress the Reset push button and hold the
button down until ªCALº appears in the display. This
takes about ten seconds, and appears about five sec-
onds after ªVARIANCE = XXº is displayed.
(3) Release the Reset push button.
(4) Drive the vehicle on a level surface, away from
large metal objects and power lines, through one
complete circle at between five and eight kilometers-
per-hour (three and five miles-per-hour) in not less
than 20 seconds. The ªCALº message will disappear
from the display to indicate that the compass is now
calibrated.
NOTE: If the ªCALº message remains in the display,
either there is excessive magnetism near the com-
pass, or the unit is faulty. Repeat the calibration
procedure one more time.NOTE: If the wrong direction is still indicated in the
compass display, the area selected for calibration
may be too close to a strong magnetic field. Repeat
the calibration procedure in another location.
STANDARD PROCEDURE - COMPASS
VARIATION ADJUSTMENT
Compass variance, also known as magnetic decli-
nation, is the difference in angle between magnetic
north and true geographic north. In some geographic
locations, the difference between magnetic and geo-
graphic north is great enough to cause the compass
to give false readings. If this problem occurs, the
compass variance setting may need to be changed.
To set the compass variance:
(1) Using the Variance Settings map, find your
geographic location and note the zone number (Fig.
4).
(2) Turn the ignition switch to the On position. If
the compass/temperature data is not currently being
displayed, momentarily depress and release the C/T
push button to reach the compass/temperature dis-
play.
(3) Depress the Reset push button and hold the
button down until ªVARIANCE = XXº appears in the
display. This takes about five seconds.
(4) Release the Reset push button. ªVARIANCE
=XX º will remain in the display. ªXXº equals the cur-
rent variance zone setting.
(5) Momentarily depress and release the Step push
button to step through the zone numbers, until the
zone number for your geographic location appears in
the display.
(6) Momentarily depress and release the Reset
push button to enter the displayed zone number into
the EVIC module memory.
(7) Confirm that the correct directions are now
indicated by the compass.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the screw that secures the front of the
overhead console to the front of the overhead console
retainer bracket.
(3) Insert the fingertips of both hands between the
headliner and the sides of the overhead console hous-
ing in the area near the reading and courtesy lamps.
(4) Pull downward on the sides of the overhead
console housing firmly and evenly to disengage the
two snap clips that secure the rear of the unit from
their receptacles in the overhead console retainer
bracket.
(5) Lower the overhead console from the headliner
far enough to access the wire harness connectors.
WJMESSAGE SYSTEMS 8M - 5
OVERHEAD CONSOLE (Continued)