warning CHRYSLER VOYAGER 1996 Owners Manual
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Page 502 of 1938

DEPLOYED MODULE
The Driver Airbag Module and Driver Airbag Cov-
er/Horn Pad are serviced separately from eachother.
REMOVAL
(1) Disconnect battery negative cable. Allow at
least two minutes for the reserve capacitor in the
ACM to discharge.
(2) Clean powder residue from interior of vehicle,
refer to Cleanup Procedure.
(3) Remove three screws attaching Driver Airbag
Module to steering wheel (Fig. 7).
(4) Remove airbag module from steering wheel.
(5) Disconnect wire connectors from Airbag Mod-
ule, horn switch, and speed control switches.
(6) Adjust the steering wheel so that the tires are
in a straight ahead position. Remove steering wheel
(Fig. 8), refer to Group 19, Steering for proper proce-
dure.
(7) Disconnect the 2-way and 4-way connectors
between the clockspring and the instrument panel
wiring harness.
(8) Remove upper and lower steering column
shrouds.
(9) Remove clockspring from the housing assembly
by depressing the 2 tabs on the clockspring (Fig. 10).
(10) Remove screws holding speed control switches
to airbag cover and remove, if equipped.
INSTALLATION
For installation, reverse the above procedures. Do
not connect battery negative cable. Refer to Diagno-
sis and Testing for Airbag System Test procedures.
UNDEPLOYED
REMOVAL
(1) Disconnect battery negative cable. Allow at
least two minutes for the reserve capacitor in the
Airbag Control Module (ACM) to discharge.
(2) Remove screws attaching airbag/horn switch to
steering wheel (Fig. 7).
(3) Remove Driver Airbag Module from steering
wheel.
(4) Disconnect wire connectors from airbag mod-
ule, horn switch, and speed control switches, if
equipped.
(5) Remove screws holding vehicle speed control
switches to airbag cover and remove.
INSTALLATION
For installation, reverse the above procedures and
do not connect battery negative cable. Do not connect
battery negative cable. Refer to Diagnosis and Test-
ing for Airbag System Test procedures.
PASSENGER AIRBAG
WARNING: DISCONNECT AND ISOLATE THE BAT-
TERY NEGATIVE CABLE BEFORE BEGINNING AIR-
BAG SYSTEM COMPONENT SERVICE
PROCEDURES. THIS WILL DISABLE THE AIRBAG
SYSTEM. FAILURE TO DISCONNECT THE BATTERY
COULD RESULT IN ACCIDENTAL AIRBAG DEPLOY-
MENT AND POSSIBLE PERSONAL INJURY. ALLOW
SYSTEM CAPACITOR TO DISCHARGE FOR TWO
MINUTES BEFORE REMOVING AIRBAG COMPO-
NENTS.
DEPLOYED MODULE
REMOVAL
(1) Disconnect and isolate battery negative cable.
Allow at least two minutes for the reserve capacitor
in the Airbag Control Module to discharge.
(2) Clean powder residue from interior of vehicle,
refer to Cleanup Procedure in this section.
(3) Remove instrument panel, refer to Group 8E,
Instrument Panel and Systems for proper proce-
dures.
(4) Remove all reusable components from the
upper instrument panel.
INSTALLATION
Transfer all reusable components to the new the
upper instrument panel.
(1) Install new Passenger Airbag Module into
instrument panel.
(2) Install airbag module attaching screws to the
instrument panel.
Fig. 10 Clockspring Locking Tabs
8M - 6 RESTRAINT SYSTEMNS
REMOVAL AND INSTALLATION (Continued)
Page 503 of 1938

(3) Install Instrument panel. Refer to Group 8E,
Instrument Panel and Systems for installation proce-
dures.
(4) Through access holes in instrument panel
above glove box opening, install screws holding air-
bag to back of panel.
(5) Install the bolts attaching forward airbag
mount to the instrument panel (Fig. 11).
(6) Connect yellow wire connector from passenger
airbag.
(7) Install the glove box.
(8) Install right front instrument panel speaker.
(9) Install instrument panel top cover.
(10) Do not connect battery negative cable. Refer
to Diagnosis and Testing for Airbag System Test pro-
cedures.
UNDEPLOYED
REMOVAL
(1) Disconnect battery negative cable. Allow at
least two minutes for the reserve capacitor in the
ACM to discharge.
(2) Remove instrument panel top cover.
(3) Remove right front instrument panel speaker.
(4) Remove glove box.
(5) Disconnect yellow wire connector from passen-
ger airbag.
(6) Remove bolts attaching forward airbag mount
to the instrument panel
(7) Through access holes in instrument panel
above glove box opening, remove screws holding air-
bag to back of panel.
(8) Remove screws attaching airbag to upper
instrument panel.(9) Remove airbag from instrument panel through
top of instrument panel.
INSTALLATION
For installation, reverse the above procedures. Do
not connect battery negative cable. Refer to Diagno-
sis and Testing for Airbag System Test procedures.
ADJUSTMENTS
CLOCKSPRING CENTERING PROCEDURE
If the rotating tape (wire coil) in the clockspring is
not positioned properly with the steering wheel and
the front wheels, the clockspring may fail. The fol-
lowing procedure MUST BE USED to center the
clockspring if it is not known to be properly posi-
tioned, or if the front wheels were moved from the
straight ahead position.
WARNING: DISCONNECT AND ISOLATE THE BAT-
TERY NEGATIVE CABLE BEFORE BEGINNING AIR-
BAG SYSTEM COMPONENT SERVICE
PROCEDURES. THIS WILL DISABLE THE AIRBAG
SYSTEM. FAILURE TO DISCONNECT THE BATTERY
COULD RESULT IN ACCIDENTAL AIRBAG DEPLOY-
MENT AND POSSIBLE PERSONAL INJURY. ALLOW
SYSTEM CAPACITOR TO DISCHARGE FOR TWO
MINUTES BEFORE REMOVING AIRBAG COMPO-
NENTS.
(1) Adjust the steering wheel so that the tires are
in a straight ahead position.
(2) Disconnect and isolate battery negative cable.
Allow at least two minutes for the reserve capacitor
in the ACM to discharge.
(3) Remove Driver Airbag Module from steering
wheel.
(4) Disconnect wire connectors from back of airbag
module.
(5) Remove steering wheel.
(6) Depress the two plastic locking pins to disen-
gage lock mechanism (Fig. 10).
(7) With lock mechanism disengaged, rotate the
clockspring rotor clockwise until the rotor stops. Do
not apply excessive force.
(8) From the end of travel, rotate the rotor three
turns counterclockwise. The wires should end up at
the top. Release locking pins to engage clockspring
lock mechanism.
(9) Install steering wheel and airbag.
(10) Do not connect battery negative cable. Refer
to Diagnosis and Testing for Airbag System Test
procedures.
Fig. 11 Airbag Upper Attachment
NSRESTRAINT SYSTEM 8M - 7
REMOVAL AND INSTALLATION (Continued)
Page 507 of 1938

(3) With negative lead of voltmeter, contact a good
body ground point. The voltage reading should not
change. A different reading indicates a poor ground
connection.
(4) Connect negative lead of voltmeter to terminal
A on passenger side bus bar and touch each grid line
at Mid-Point with positive lead. A reading of approx-
imately 6 volts indicates a line is good. A reading of 0
volts indicates a break in line between Mid-Point C
and terminal B. A reading of 10-14 volts indicates a
break between Mid-Point C and ground terminal A.
Move toward break and voltage will change as soon
as break is crossed.
SERVICE PROCEDURES
GRID LINE AND TERMINAL REPAIR
WARNING: REPAIR KIT MAY CAUSE SKIN OR EYE
IRRITATION. CONTAINS EPOXY RESIN AND AMINE
TYPE HARDENER, HARMFUL IF SWALLOWED.
AVOID CONTACT WITH SKIN AND EYES. FOR SKIN,
WASH AFFECTED AREAS WITH SOAP AND WATER.
DO NOT TAKE INTERNALLY. IF TAKEN INTER-
NALLY, INDUCE VOMITING; CALL A PHYSICIAN
IMMEDIATELY. IF IN CONTACT WITH EYES, FLUSH
WITH PLENTY OF WATER. USE WITH ADEQUATE
VENTILATION. DO NOT USE NEAR FIRE OR FLAME.
CONTENTS CONTAINS 3% FLAMMABLE SOL-
VENTS. KEEP OUT OF REACH OF CHILDREN.
The repair for the front windshield or the rear win-
dow grids are the same.
The repair of grid lines and replacement of the ter-
minal is possible using the MopartRepair Package
or equivalent.
(1) Clean area surrounding grid line or terminal
by gently rubbing area with steel wool.
(2) Wipe area with clean cloth soaked in alcohol or
similar solvent. It is necessary that all contaminants
be removed from repair area.(3) Remove package separator clamp and mix plas-
tic conductive epoxy thoroughly.
(4) For grid line, mark off area to be repaired with
masking tape (Fig. 5).
(5) Apply conductive epoxy through slit in masking
tape. Overlap both ends of the break.
(6) For a terminal replacement, apply a thin layer
of epoxy to area where terminal was fastened.
(7) Apply a thin layer of epoxy on terminal and
place terminal on desired location. To prevent termi-
nal from falling off use a wooden wedge to secure it.
(8) Carefully remove masking tape from grid line.
CAUTION: Do not allow the laminated windshield
glass surface to exceed 82É C (180É F) or the glass
may fracture. The rear window glass surface should
not exceed 204É C (400É F).
(9) Allow epoxy to cure 24 hours at room tempera-
ture.
(10) After epoxy is properly cured remove wedge
from terminal and check the operation of the rear
window defogger.
Fig. 5 Grid Line Repair
NSELECTRICALLY HEATED SYSTEMS 8N - 3
DIAGNOSIS AND TESTING (Continued)
Page 515 of 1938

VEHICLE THEFT SECURITY SYSTEM
CONTENTS
page page
GENERAL INFORMATION
INTRODUCTION......................... 1
DESCRIPTION AND OPERATION
ARMING PROCEDURE.................... 1
TIME-OUT PERIOD....................... 2
TRIGGERING THE VTSS................... 2
DIAGNOSIS AND TESTING
DIAGNOSTIC PROCEDURES................ 2
REMOVAL AND INSTALLATION
BODY CONTROL MODULE................. 2DOOR LOCK CYLINDER SWITCH............ 2
FRONT DOOR AJAR (VTSS TRIGGER)
SWITCH.............................. 2
HOOD AJAR (VTSS TRIGGER) SWITCH...... 3
LIFTGATE AJAR (VTSS TRIGGER) SWITCH.... 3
LIFTGATE LOCK CYLINDER SWITCH......... 3
SLIDING DOOR AJAR (VTSS TRIGGER)
SWITCH.............................. 4
GENERAL INFORMATION
INTRODUCTION
Vehicles equipped with the Vehicle Theft Security
System (VTSS) system, the doors, liftgate, hood and
ignition circuit are monitored by the Body Control
Module (BCM) when the system is armed. The VTSS
will prevent the engine from starting until the BCM
receives a disarm signal. If the VTSS is triggered,
the horn will pulse, headlamps/marker lamps will
flash, and the VTSS warning lamp will flash. If BCM
determines the threat to be false and the VTSS is not
triggered again, the system will shut down and
rearm itself after three minutes. The VTSS monitor-
ing portion of the system is split into two sections.
The engine compartment section and the passenger
compartment section. If a malfunction occurs in the
engine compartment section, the passenger compart-
ment section would still arm and function normally.
If an electrical malfunction occurs in either section of
the system a Diagnostic Trouble Code (DTC) would
be stored the BCM memory to aid system repair.
DTCs can be retrieved using scan tool (DRB)
attached to the diagnostic connector above the accel-
erator pedal.
ENABLING
To initialize the VTSS feature the operator must,
with the engine compartment hood open, cycle the
key in the liftgate key cylinder to the unlock position
giving the BCM a disarm signal. At this time the
visual alarm outputs the headlamps and marker
lamps will function. However the audio alarm output
the horn and engine disable portion of the VTSS will
not function until there has been twenty consecutiveengine run cycles. When this has occurred the total
VTSS will function.
If during alarm being set the BCM receives a
request from the RKE module to enter PANIC mode
the BCM will cancel the alarm, return VTSS armed
state and then perform the RKE PANIC feature.
DESCRIPTION AND OPERATION
ARMING PROCEDURE
METHOD-A
(1) With the key removed from the ignition lock
and any door open, actuate one of the following:
²Power door lock button to LOCK,
²Key fob LOCK button
²Door lock key cylinder to locked position.
(2) Close all opened doors.
(3) After the last door is closed, an arming time-
out period of sixteen seconds will start, then the
VTSS will become armed.
METHOD-B
Actuating the key fob transmitter LOCK button,
key locking the front doors or liftgate with the doors
closed and the ignition locked will begin the arming
time-out period. If method-A, 16 second time-out
sequence was in process when method-B was actu-
ated, the 16 second time-out will restart from the
time of the second actuation.
If the security lamp does not illuminate at all upon
final door closure, it indicates that the system is not
arming.
The current VTSS status armed or disarmed shall
be maintained in memory to prevent battery discon-
nects from disarming the system.
NSVEHICLE THEFT SECURITY SYSTEM 8Q - 1
Page 521 of 1938

determine whether a valid key is in the ignition lock
cylinder.
The Smart Key transponder cannot be repaired
and, if faulty or damaged, it must be replaced.
SMART KEY IMMOBILIZER SYSTEM INDICATOR
LAMP
The Smart Key Immobilizer System (SKIS) indica-
tor lamp gives an indication when the SKIS is faulty
or when the vehicle has been immobilized due to the
use of an invalid ignition key. The lamp is controlled
by the instrument cluster circuitry based upon mes-
sages received from the Smart Key Immobilizer Mod-
ule (SKIM) on the Chrysler Collision Detection (CCD)
data bus.
The SKIM sends messages to the instrument clus-
ter to turn the lamp on for about three seconds when
the ignition switch is turned to the On position as a
bulb test. After completion of the bulb test, the SKIM
sends bus messages to keep the lamp off for a dura-
tion of about one second. Then the SKIM sends mes-
sages to the instrument cluster circuitry to turn the
lamp on or off based upon the results of the SKIS
self-tests. If the SKIS indicator lamp comes on and
stays on after the bulb test, it indicates that the
SKIM has detected a system malfunction and/or that
the SKIS has become inoperative. If the SKIM
detects an invalid key when the ignition switch is
turned to the On position, it sends messages to the
instrument cluster to flash the SKIS indicator lamp.
The SKIM can also send messages to the instru-
ment cluster to flash the lamp and to generate a sin-
gle audible chime tone. These functions serve as an
indication to the customer that the SKIS has been
placed in its ªCustomer Learnº programming mode.
See Smart Key Immobilizer System Transponder Pro-
gramming in this group for more information on the
ªCustomer Learnº programming mode.
The SKIS indicator lamp uses a replaceable incan-
descent bulb and bulb holder on the instrument clus-
ter electronic circuit board. Refer to Group 8E -
Instrument Panel Systems for diagnosis and service
of a faulty SKIS indicator lamp. If the SKIS indicator
lamp comes on and stays on after the bulb test func-
tion, diagnosis of the SKIS should be performed with
a DRB scan tool and the proper Diagnostic Proce-
dures manual.
DIAGNOSIS AND TESTING
SMART KEY IMMOBILIZER SYSTEM
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, REFER TO GROUP 8M - PASSIVE
RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY
STEERING WHEEL, STEERING COLUMN, OR
INSTRUMENT PANEL COMPONENT DIAGNOSIS OR
SERVICE. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
NOTE: The following tests may not prove conclu-
sive in the diagnosis of this system. The most reli-
able, efficient, and accurate means to diagnose the
Smart Key Immobilizer System involves the use of a
DRB scan tool. Refer to the proper Diagnostic Pro-
cedures manual for the procedures.
The Smart Key Immobilizer System (SKIS) and the
Chrysler Collision Detection (CCD) data bus network
should be diagnosed using a DRB scan tool. The DRB
will allow confirmation that the CCD data bus is
functional, that the Smart Key Immobilizer Module
(SKIM) is placing the proper messages on the CCD
data bus, and that the Powertrain Control Module
(PCM) and the instrument cluster are receiving the
CCD data bus messages. Refer to the proper Diag-
nostic Procedures manual for the procedures. Refer
to 8W-30 - Fuel/Ignition System in Group 8W - Wir-
ing Diagrams for complete circuit descriptions and
diagrams.
(1) Check the fuses in the fuseblock module. If OK,
go to Step 2. If not OK, repair the shorted circuit or
component as required and replace the faulty fuse.
(2) Disconnect and isolate the battery negative
cable. Unplug the wire harness connector at the
SKIM. Check for continuity between the ground cir-
cuit cavity of the SKIM wire harness connector and a
good ground. There should be continuity. If OK, go to
Step 3. If not OK, repair the open circuit to ground
as required.
(3) Connect the battery negative cable. Check for
battery voltage at the fused B(+) circuit cavity of the
SKIM wire harness connector. If OK, go to Step 4. If
not OK, repair the open circuit to the fuse in the
fuseblock module as required.
NS/GSVEHICLE THEFT/SECURITY SYSTEMS 8Q - 3
DESCRIPTION AND OPERATION (Continued)
Page 522 of 1938

(4) Turn the ignition switch to the On position.
Check for battery voltage at the fused ignition switch
output (run/start) circuit cavity of the SKIM wire
harness connector. If OK, use a DRB scan tool and
the proper Diagnostic Procedures manual to complete
the diagnosis of the SKIS. If not OK, repair the open
circuit to the fuse in the fuseblock module as
required.
SERVICE PROCEDURES
SMART KEY IMMOBILIZER SYSTEM
TRANSPONDER PROGRAMMING
Two programmed Smart Key transponders are
included with the Smart Key Immobilizer System
(SKIS) when it is shipped from the factory. The
Smart Key Immobilizer Module (SKIM) can be pro-
grammed to recognize up to six additional transpon-
ders, for a total of eight Smart Keys. The following
ªCustomer Learnº programming procedure for the
programming of additional transponders requires
access to at least two of the valid Smart Keys. If two
valid Smart Keys are not available, Smart Key pro-
gramming will require the use of a DRB scan tool
and the proper Diagnostic Procedures manual.
PROGRAMMING THE SKIM MODULE WITH
THE DRBIII
(1) Turn the ignition on. Transmission must be in
park or neutral. Alarm set lamp will flash.
(2) Use the DRBIII and select ªSKIMº under the
ªMISCELLANEOUSº menu.
(3) Select ªPROGRAM PINº and enter the cus-
tomer 4±digit PIN number.
(4) Select ªUPDATE VINº. The SKIM module will
learn the VIN from the PCM in gasoline engine vehi-
cles, and from the BCM in diesel engine vehicles.
(5) Select ªCOUNTRY CODEº and enter the cor-
rect country.
(6) Select ªPROGRAM NEW EMSº. The SKIM
module will send the ªsecret keyº data to the PCM.
(7) Program ignition keys to the SKIM module.
PROGRAMMING IGNITION KEYS WITH THE
DRBIII
(1) Turn ignition on. Transmission must be in park
or neutral. Alarm set lamp will flash.
(2) Use the DRBIII and select ªSKIMº under the
ªMISCELLANEOUSº menu.
(3) Select ªLEARN NEW KEYº. Alarm Set lamp
will begin flashing.
NOTE: The PIN must be re-entered each time an
additional key is learned.(4) Insert key into ignition switch. Once the key
has been learned, the Alarm Set lamp will turn off.
REMOVAL AND INSTALLATION
SMART KEY IMMOBILIZER MODULE
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, REFER TO GROUP 8M - PASSIVE
RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY
STEERING WHEEL, STEERING COLUMN, OR
INSTRUMENT PANEL COMPONENT DIAGNOSIS OR
SERVICE. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the knee blocker from the instrument
panel. See Knee Blocker in Group 8E - Instrument
Panel Systems for the procedures.
(3) Remove the three screws that secure the lower
steering column shroud to the upper shroud.
(4) If the vehicle is so equipped, move the tilt
steering column to the fully lowered position.
(5) If the vehicle is so equipped, loosen the two
nuts that secure the non-tilt steering column upper
mounting bracket to the dash panel steering column
support bracket studs. Lower the column far enough
to remove the upper steering column shroud.
(6) Remove both the upper and lower shrouds from
the steering column.
Fig. 2 Steering Column Shrouds Remove/Install
8Q - 4 VEHICLE THEFT/SECURITY SYSTEMSNS/GS
DIAGNOSIS AND TESTING (Continued)
Page 527 of 1938

If motor grunts and does not move, verify that reg-
ulator is not binding.
WIRING VOLTAGE TEST
The following wiring test determines whether or
not voltage is continuous through the body harness
to switch.
(1) Remove the master power window switch and
bezel assembly from the driver door. Refer to Group
23, Body for proper procedures.
(2) Disconnect wire connector from back of power
window switch.
(3) Switch ignition ON position.
(4) Connect the clip end of a 12 volt test light to
Pin 13 in door harness connector at the window
switch. Touch the test light probe to Pin 9 and then
to Pin 11.
²If the test light illuminates, the wiring circuit
between the battery and switch is OK.
²If light does not illuminate, check the 40 amp
fuse in the Power Distribution Center or for a broken
wire.
²The power window motors are protected with
Positive Temperature Coefficient (PTC) device that
prevents motor burn out. Check Junction Block.
²Refer to Group 8W, Wiring Diagrams for circuit
information and component locations.
REMOVAL AND INSTALLATION
POWER VENT WINDOW MOTOR
REMOVAL
(1) Disconnect battery negative cable.
(2) Remove D-pillar trim panel.
(3) Disconnect wire connector from power vent
motor.
(4) Remove nut holding crank to vent glass.
(5) Remove bolts holding power vent motor to
D-pillar (Fig. 4).
(6) Remove power vent motor.
(7) Pull the crank system from the motor.
INSTALLATION
Before installing crank, cycle replacement motor to
the open position. Install crank hinge in extended
position to the motor and for installation, reverse the
above procedures.
POWER WINDOW SWITCH
To remove power window switches refer to Group
23, Body for proper procedures.
POWER WINDOW MOTOR
WARNING: DO NOT HAVE ANY HANDS OR FIN-
GERS IN SECTOR GEAR AREA WHERE THEY CAN
BE PINCHED BY SMALL MOVEMENTS OF REGULA-
TOR LINKAGE.
REMOVAL
(1) Tape the window in its existing position to
remove its weight from the regulator system.
(2) Cut and remove the tie wrap at the window
motor. Its no longer required.
(3) Disconnect window motor wire connector from
door harness.
(4) Remove screws and nuts holding window motor
to the inner panel.
(5) Remove the motor from the door inner panel,
let it hang from the cables.
(6) With the cables still attached to the failed
motor, Install the replacement motor to the door
inner panel. Tighten down the screws and nuts to 3.4
to 4.5 N´m ( 30 to 40 in. lbs.) of torque.
(7) Separate the failed motor from regulator by:
²Removing the drum cover plate.
²Lift the cable guide off the motor, the drum with
cables, will be lifted off simultaneously (Fig. 5).
CAUTION: Do not allow the drum to separate from
the cable guide, by dropping drum or letting the
cables unwind.
INSTALLATION
(1) Install the cable guide and drum into the
replacement motor.
Fig. 4 Vent Window Motor
NSPOWER WINDOWS 8S - 3
DIAGNOSIS AND TESTING (Continued)
Page 543 of 1938

CHIME WARNING/REMINDER SYSTEM
CONTENTS
page page
GENERAL INFORMATION
INTRODUCTION......................... 1
DIAGNOSIS AND TESTING
CHIME SYSTEM DIAGNOSIS............... 1
DOME LAMP ON CHIME.................. 2
ENGINE TEMPERATURE CRITICAL CHIME.... 2
EXTERIOR LAMPS ON CHIME.............. 2KEY-IN IGNITION CHIME.................. 2
LOW OIL PRESSURE CHIME OPERATION..... 2
SEAT BELT CHIME....................... 2
SEAT BELT LAMP........................ 2
TURN SIGNAL ON CHIME................. 3
WARNING LAMP ANNOUNCEMENT CHIME . . . 3
GENERAL INFORMATION
INTRODUCTION
WARNING: ON VEHICLES EQUIPPED WITH AN
AIRBAG, REFER TO GROUP 8M, RESTRAINT SYS-
TEMS FOR SAFETY PRECAUTIONS AND WARN-
INGS TO OBSERVE WHEN SERVICING AIRBAG
RELATED COMPONENTS.
The chime system provides the driver with warn-
ing chimes for:
²Seat Belt
²Exterior Lamps ON
²Key-In Ignition
²Engine Temperature Critical
²Turn Signals ON
²Dome Lamp ON
²Low Oil Pressure
²High Speed Warning
²Warning Lamp Announcement
The Chime Warning/Reminder System is diagnosed
using a scan tool (DRB). Refer to the proper Body
Diagnostic Procedures manual for testing procedures
and scan tool usage instructions.
DIAGNOSIS AND TESTING
CHIME SYSTEM DIAGNOSIS
NO TONE WHEN IGNITION SWITCH IS
TURNED ON AND DRIVER'S SEAT BELT IS
NOT BUCKLED.
(1) Using a scan tool (DRB), check for tone in any
other function.
(2) Using a voltmeter, check for voltage:
(a) Pin 9 of the internal 32 way connector of the
BCM for battery feed.(b) Pin 8 of the internal 32 way connector of the
BCM for ignition feed.
(c) If voltage OK, go to step Step 3
(d) If NO voltage repair as necessary. Refer to
Group 8W, Wiring Diagrams for component loca-
tions and circuit information.
(3) Check driver's seat belt buckle switch input for
a closed circuit when not buckled. If input not seen,
look for open in wiring or switch. The switch is
grounded when belt is not buckled.
(4) Repair as necessary.
NO FASTEN SEAT BELT LAMP WHEN
IGNITION SWITCH IS TURNED ON.
(1) Check for burned out lamp.
(2) Using a voltmeter check for voltage:
(a) Pin 2 of the mechanical instrument cluster
for battery feed.
(b) Pin 11 of the mechanical instrument cluster
for ignition voltage.
(3) Repair as necessary.
FASTEN SEAT BELT LAMP OR TONE
CONTINUES FOR MORE THAN 10 SECONDS
AFTER SEAT BELTS ARE FASTENED AND
DRIVER'S DOOR IS CLOSED.
(1) Check left door ajar switch for no ground when
switch is depressed.
(a) If continuity replace door ajar switch.
(b) If NO continuity replace BCM for tone condi-
tion, or replace mechanical instrument panel for
lamp condition.
(c) Replace BCM for tone condition.
(d) Replace mechanical instrument cluster for
lamp condition.
NO TONE WHEN PARK OR HEADLAMPS ARE
ON AND DRIVER'S DOOR IS OPEN.
(1) Check left door ajar switch for good ground
when driver's door is open. Repair as necessary.
NSCHIME WARNING/REMINDER SYSTEM 8U - 1
Page 544 of 1938

(2) Inspect BCM connectors and wires for proper
connection. If OK, replace BCM for tone condition.
DOME LAMP ON CHIME
The dome lamp on chime will warn the driver that
the dome lamps have been left on.
With the ignition is OFF:
²Driver's door OPEN (door ajar switch is closed to
ground)
²Dome lamps are ON (dome lamp switch is closed
to ground),
The chime will sound continuously until driver's
door is closed, dome lamps tuned OFF or until the
battery protection time out of 15 minutes has
expired. Refer Group 8L, Lamps proper procedures.
Chime rate: 168 to 192 chimes per minute.
ENGINE TEMPERATURE CRITICAL CHIME
The engine temperature critical chime will warn
the driver that the vehicle's engine is overheating.
While monitoring the coolant temperature, the Pow-
ertrain Control Module (PCM) will send on the CCD
bus as engine temperature every 1.376 seconds to the
Body Control Module (BCM). The BCM calculates
engine temperature and determines if a warning
should occur. This feature is functional only with the
Ignition Switch in the Run/Start position.
When the engine temperature reaches 122ÉC
(252ÉF) the BCM will chime one tone and the engine
temperature lamp comes ON. The BCM turns OFF
the lamp when the engine temperature reaches
117ÉC (242ÉF). The BCM will chime continuously
when the engine temperature reaches 125ÉC (257ÉF).
The chime will turn OFF after four minutes or when
the temperature reaches 117ÉC (242ÉF), which ever
occurs first.
EXTERIOR LAMPS ON CHIME
The exterior lamp on chime will warn the driver
that the exterior lights have been left on.
With the ignition switch OFF:
²Driver's door is open (door ajar switch is closed
to ground)
²Parking lamps or headlamps ON (parking lamp
switch is closed to ground)
The chime will sound until lights are turned OFF,
driver's door closed or until the battery protection
time out of 3 minutes has expired.
Refer to Group 8L, Lamps, for proper service pro-
cedures. Chime rate: 168 to 192 chimes per minute.
To test the exterior lamps left on function:
²Turn ignition off
²Remove ignition key
²Turn exterior lamps on with driver's door open.
Chime should sound until lamps are turned off or
driver's door is closed.
KEY-IN IGNITION CHIME
The key-in ignition chime will act as a warning to
the driver that the ignition key has been left in the
ignition switch.
With the ignition switch is in OFF position ONLY:
²Driver's door is open/ajar (door ajar switch is
closed to ground)
²Key is in the ignition switch (key-in ignition
switch is closed to ground)
The chime will sound until one of the above condi-
tions is removed. Chime rate: 168 to 192 chimes per
minute.
To test the key-in ignition function, insert key into
the ignition and open driver's door. Do not turn igni-
tion ON. Chime should sound until key is removed
from ignition or driver's door is closed.
LOW OIL PRESSURE CHIME OPERATION
The low oil pressure chime will warn the driver
that the engine oil pressure is low. The oil pressure
switch, will close to ground during a low oil pressure
condition. The oil pressure lamp will illuminate in
the message center. The body control module will
monitor the oil pressure switch and signal a low oil
pressure condition. A continuous four minute warn-
ing chime will sound and the oil pressure lamp will
come ON when the following conditions are met:
²Ignition on and engine not cranking
²Engine running at 420 to 480 rpm for 10 sec-
onds
²Oil pressure switch closed to ground for (1 sec-
ond minimum, 2 seconds maximum)
Chime rate: 168 to 192 chimes per minute.
SEAT BELT CHIME
The seat belt chime will sound for 4 to 8 seconds,
when the ignition is turned on and the driver's seat
belt is not buckled (seat belt switch is closed to
ground). This is a reminder to the driver to buckle
the seat belt. The seat belt lamp is controlled by the
mechanical instrument cluster. The cluster will also
illuminate the seat belt warning lamp for 6 seconds.
Buckling the driver's seat belt before the time out
has expired will cause the chime to stop immediately.
Chime rate: 38 to 62 chimes per minute.
To test the seat belt warning system, the ignition
switch must be in the OFF position for 1 minute
before starting the test. Turn the ignition switch to
the on position with the driver's seat belt not buck-
led. The seat belt warning lamp should light and the
chime should sound 4 to 8 seconds.
SEAT BELT LAMP
The seat belt lamp in the instrument cluster sig-
nals the vehicle passengers to fasten their seat belts.
The seat belt lamp is illuminated directly by the
8U - 2 CHIME WARNING/REMINDER SYSTEMNS
DIAGNOSIS AND TESTING (Continued)
Page 545 of 1938

instrument cluster for 6 seconds after the instrument
cluster receives the message from the Body Control
Module. The seat belt lamp is therefore illuminated
for 6 seconds whenever the ignition switch is moved
to run/start position.
(1) While ignition is off, the seat belt lamp will not
be illuminated.
(2) The ignition power feed status will be updated
every 250 milliseconds or on change.
(3) This lamp will be checked by the instrument
cluster for 6 seconds with every run/start cycle of the
ignition switch.
TURN SIGNAL ON CHIME
The turn signal on chime will warn the driver that
the turn signals have been left on. When the body
control module receives a turn signal input for 6.4
km (4.0 miles), vehicle speed is greater than 24 km/h
(15 mph), the chime will sound continuously until the
turn signal is turned OFF. If vehicle speed drops
below 24 km/h (15 mph) prior to the warning being
activated, the accumulated distance traveled will be
reset. The turn signal chime is not activated when
the emergency flashers are turned on. This feature
can also be disabled in EEPROM. Chime rate: 50
chimes per minute.
For the turn signal warning system to operate:
²Must have input from either the right or left
turn signal lamps. Creates a voltage change between
0 and battery voltage.
²The vehicle speed sensor sends a message to the
Powertrain Control Module that vehicle has exceeded
24 km/h (15 mph) for 6.4 km (4.0 miles).
²When the above two conditions are met, the
chime will sound. The chime will stop when no fur-
ther voltage change is detected.²If hazard warning signals are pulsing, no chime
will sound.
²If speed drops below 24 km/h (15 mph) before
the warning is issued, the warning will not be issued
and the distance counter will be reset.
²If turn signal lamps are not working properly,
the chime will not sound.
²When using the scan tool, refer to the proper
Body Diagnostic Manual for the procedure.
WARNING LAMP ANNOUNCEMENT CHIME
The warning lamp announcement chime will warn
the driver to scan the instrument cluster to observe
which warning lamp is illuminated. Whenever the
volts, low fuel, low washer/coolant level, door ajar or
gate ajar lamps are first illuminated, the chime will
sound one tone. The door/liftgate ajar warning lamp
announcement chime sounds only if the vehicle speed
is above 2 m.p.h.
Two seconds after ignition switch is turned ON or
until the seat belt warning chime ends, all warning
announcement chimes will be consolidated into one
warning announcement. This will occur 2 seconds
after the seat belt warning chime ends. If a warning
announcement should occur while another warning
chime in progress (turn signal, low oil pressure or
high speed warnings), no additional chimes will
sound after the chime in progress ends. All associ-
ated lamps will be illuminated, and the active chime
will be the warning announcement.
NSCHIME WARNING/REMINDER SYSTEM 8U - 3
DIAGNOSIS AND TESTING (Continued)