key CHRYSLER VOYAGER 1996 Workshop Manual

(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)

(7) Unplug the wire harness connector from the
SKIM receptacle.(8) Remove the screw securing the SKIM module
to the steering column.
(9) Release the clip holding the SKIM antenna to
the ignition lock housing on the steering column.
(10) Remove the SKIM from the vehicle.
(11) Reverse the removal procedures to install.
Tighten the non-tilt steering column mounting nuts
to 22 N´m (200 in. lbs.) and the steering column
shroud mounting screws to 2 N´m (18 in. lbs.).
(12) If the SKIM is replaced with a new unit, a
DRB scan tool and the proper Diagnostic Procedures
manual MUST be used to initialize the new SKIM
and to program at least two Smart Key transponders.
Fig. 3 Smart Key Immobilizer Module Remove/Install
NS/GSVEHICLE THEFT/SECURITY SYSTEMS 8Q - 5
REMOVAL AND INSTALLATION (Continued)

MEMORY SEAT AND MIRROR SYSTEM
INDEX
page page
GENERAL INFORMATION
INTRODUCTION......................... 3
DESCRIPTION AND OPERATION
MEMORY SELECTOR SWITCHES............ 3
POSITION SENSING SEAT AND RECLINER
POTENTIOMETERS..................... 4
POWER SIDE VIEW MIRROR POSITION
SENSING............................. 3
SEAT AND RECLINER SWITCHES............ 4
DIAGNOSIS AND TESTING
CIRCUIT DESCRIPTION.................... 7DIAGNOSTIC MODE...................... 5
MEMORY SELECTOR SWITCHES............ 4
SEAT AND RECLINER POSITION SENSING.... 9
SIDE VIEW MIRROR SWITCH STUCK......... 4
SERVICE PROCEDURES
REMOTE KEYLESS ENTRY (RKE) DATA LINK . . . 9
REMOVAL AND INSTALLATION
MEMORY SWITCHES..................... 10
SEAT TRACK ASSEMBLY.................. 10
GENERAL INFORMATION
INTRODUCTION
Memory Seat and Mirrors system is available only
on Town and Country (Luxury Class) vehicles.
Refer to Group 8W, Wiring Diagrams for circuit
information and component locations. Refer to the
proper Body Diagnostic Procedures manual for addi-
tional diagnostic information.
The Memory Seat/Mirror Module (MSM Module) is
mounted under the driver's seat, on the inboard
upper track with Torx head screws. The MSM Mod-
ule provides the driver with an adjustable seat,
recliner, and power side view mirror positioning con-
troller that remembers stored positions and will
recall those positions on command.
The Memory Seat/Mirror Module reads all seat and
recliner switch inputs and operates the seat and
recliner motors in response to switch actuation. The
MSM Module monitors position sensing potentiome-
ters (mounted on the motors) for seat and recliner
positioning.
The MSM Module operates the power side view
mirror motors through solid state drivers (electronic
switches) in the recall mode only, and follows the
glass face position by means of rheostats built into
the motor pack assembly of the mirrors. Normal elec-
trical operation of the mirrors is accomplished by
actuation of the power mirror switch.
The Memory Seat/Mirror Module monitors the mem-
ory switches and has the capability to store desired
positions in non-volatile memory in response to a valid
input sequence. Refer to Memory Selector Switches (1,
2, and S) and Remote Keyless Entry (RKE) Data Link.
The memory seat/mirror module also can activate the
previously described motors in response to a recall
request from an individual memory switch.
The Memory Seat/Mirror Module monitors a data
link between the RKE receiver and the Body Control
Module (BCM) and will respond to stored information
or modify stored information when requested by a
valid data stream.
The Memory Seat/Mirror Module is connected to
the system through a seat wiring harness that inter-
faces will all of the components within the seat struc-
ture, and with electrical distribution wiring harness
connections to the non-seat mounted components.
The module operates the seat and recliner motors
through relays: four dedicated to track forward/rear-
ward, track front up/down, track rear up/down, and
recliner forward/rearward. A fifth relay controls the
direction of operation of those motors.
DESCRIPTION AND OPERATION
POWER SIDE VIEW MIRROR POSITION SENSING
The mirror switch on the instrument panel oper-
ates the outside rear view mirrors independently of
the memory seat/mirror module. The module acti-
vates the mirror motors only when in its recall mode.
The side view mirrors have position sensing rheo-
stats built into each side view mirror vertical and
horizontal motor assembly. These rheostats provide a
sense voltage to the memory seat/mirror module that
indicates where the mirror is moving to or where its
position is at when the module is activated but the
mirror motor is not moving.
MEMORY SELECTOR SWITCHES
The memory selector switches are mounted on the
driver's door trim panel within easy reach of the
driver. They provide a means to set or recall either of
NSPOWER SEATS 8R - 3

coming from the module, replace the Memory Seat/
Mirror Module.
²If P9 low current battery is present at (cavity 5)
referenced to ground Z1 (cavity 1) of the seat switch,
verify the presence of the P9 voltage at the switch
outputs. If there is no output voltage from the
switch, replace the switch.
²If P9 voltage is present at the output of the
switch, but there is no reaction from the memory
seat/mirror module, verify that the P9 voltage is
present at the appropriate 21-way connector pins
into the module. If the P9 voltage is not present at
the 21-way connector, repair or replace the seat wir-
ing harness. If the verification check of the seat wir-
ing harness is correct, replace the control module.
(2) If the control module does not respond with a
relay click to a specific seat switch when actuated,
verify the continuity of the particular circuit between
the seat switch and the Memory Seat/Mirror Module.
If the P9 voltage is present at the correct input of the
21-way connector of the module when the switch is
actuated, but there is no response by the module,
replace the Memory Seat/Mirror Module.
(3) If the Memory Seat/Mirror Module responds
with a relay click when a seat switch is actuated for
a given direction, but there is no reaction from a seat
or recliner motor relating to that switch input, dis-
connect the 10-way connector from the control mod-
ule. Jumper the battery and ground from cavities 8
and 7 of the seat harness 10-way connector to the
proper cavities for the seat or recliner motor in ques-
tion and direction of travel desired. If the motor oper-
ates, replace the control module. If the motor does
not operate, verify continuity of the wiring into the
motor 2-way connector. Repair or replace the wiring
as necessary. If the wiring has continuity, and the
motor will not operate when fed directly, replace the
track assembly, since the motor/transmission combi-
nations are not designed to be serviced on an individ-
ual basis.
SEAT AND RECLINER POSITION SENSING
Seat and recliner position sense ground reference
circuit P28 BR/RD feed is from the memory seat/mir-
ror module (cavity 10) 21-way connector to each of
the position sense connectors.
Seat and recliner position sense +5 volt feed circuit
P29 BR/WT feed is from the memory seat/mirror
module (cavity 20) 21-way connector to each of the
position sense connectors.
To test for the presence of a sense voltage, a volt
meter must be used as follows:
²Connect the negative probe to the P28 circuit
(cavity 10) of the 21-way connector.
²Connect the positive probe to the P29 circuit
(cavity 20) of the 21-way connector and verify a volt-age reading between 3.5 and 5 volts when a seat or
recliner switch is activated.An internal timer in
the Memory Seat/Mirror Module (MSM Module)
regulates the length of time this voltage stays
active i.e., 3 seconds from the time that the
switch was activated, unless the switch is held
or while the transmission is out of PARK.If the
voltage is less than 3.5, there is a fault in the system
that is drawing it down. To troubleshoot this circuit,
disconnect the 25-way connector from the MSM Mod-
ule (this removes all of the vehicle mirror circuitry).
If the voltage is still less than 3.5, disconnect each of
the position sense connectors from each of the
motors. If the voltage remains less than 3.5, replace
the MSM Module. If the voltage increases when a
motor is disconnected from the system, determine if
the fault is in the wiring or the motor assembly.
Repair or replace the wire harness assembly as
needed. If the fault is in the motor position sensing
potentiometer, replace the track assembly.
²The potentiometers built onto the motor end-bell
provide voltages to the MSM Module through the
21-way connector, which change as follows, corre-
sponding to the given seat actuations. Refer to Seat
Actuations Table.
SERVICE PROCEDURES
REMOTE KEYLESS ENTRY (RKE) DATA LINK
The memory seat/mirror module interfaces with
the RKE via a serial data link (single wire). The pro-
gramming sequence to relate an RKE transmitter to
the chosen seat, recliner and side view mirror posi-
tions consists of the following steps:
(1) Adjust the seat, recliner and side view mirrors
to the desired position.
(2) Press momentarily and release memory switch
S.
(3) Press momentarily and release memory switch
1or2.
(4) Press momentarily and release a LOCK button
on an RKE transmitter.
(5) To program the second driver's position, follow
the previous sequence with a second transmitter.
(6) To recall either of the programmed positions
with an RKE transmitter, press momentarily and
release an UNLOCK button on one of the pro-
grammed RKE transmitters.An unprogrammed
RKE transmitter will have no effect on the sys-
tem.
(7) The RKE receiver uses the serial data link to
notify the module of a request from a programmed
transmitter, that an UNLOCK button has been
pressed. This UNLOCK request (from a transmitter
associated with either switch 1 or 2) will activate the
NSPOWER SEATS 8R - 9
DIAGNOSIS AND TESTING (Continued)

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

(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)

CHIME WARNING/REMINDER SYSTEM
CONTENTS
page page
GENERAL INFORMATION
INTRODUCTION........................ 1
DIAGNOSIS AND TESTING
CATALYST OVERHEAT WARNING CHIME.... 1
CHIME SYSTEM DIAGNOSIS.............. 1
DOME LAMP ON CHIME................. 2
ENGINE TEMPERATURE CRITICAL CHIME . . . 2EXTERIOR LAMPS ON CHIME............. 2
KEY-IN IGNITION CHIME................. 2
LOW OIL PRESSURE CHIME OPERATION . . . 2
SEAT BELT CHIME...................... 3
SEAT BELT LAMP...................... 3
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
²Catalyst Overheating
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
CATALYST OVERHEAT WARNING CHIME
The Catalyst Overheat Warning Chime will act as
a warning to the driver that the vehicle's catalyst
has entered an overheat condition. The Powertrain
Control Module (PCM) will enable or disable this fea-
ture for the appropriate vehicles. Right hand drive
gas vehicles only. The Body Control Module (BCM)
will monitor the CCD bus for status and signal a cat-
alyst overheat condition with continuous warning
chime when the following conditions are met:²Ignition switch in the ON position
²Engine running at 420 to 480 rpm for 10 sec-
onds
²CCD status and with a chime rate of one chime
per second.
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.
NS/GSCHIME WARNING/REMINDER SYSTEM 8U - 1

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.
(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. On the
Diesel vehicles, the coolant temperature sensor is
read directly by the BCM.
When the engine temperature reaches 122ÉC
(252ÉF) or the diesel engine 112ÉC (234ÉF), 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) or the die-
sel engine 108ÉC (226ÉF). The BCM will chime con-
tinuously when the engine temperature reaches
125ÉC (257ÉF) or diesel engine 116ÉC (241ÉF). The
chime will turn OFF after four minutes or when thetemperature reaches 117ÉC (242ÉF) or diesel engine
108ÉC (226ÉF), 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.
8U - 2 CHIME WARNING/REMINDER SYSTEMNS/GS
DIAGNOSIS AND TESTING (Continued)

²Stores transmitter data in permanent memory -
retraining is not required even if the battery dies or
is disconnected.
To operate, simply press the appropriate button on
the Universal Transmitter. The red LED will light up
while the signal is being transmitted.
NOTE: For security reasons, you are able to erase
the trained frequencies.
DIAGNOSIS AND TESTING
READING/DOME LAMP DIAGNOSIS
The dome lamps operate in conjunction with the
Remote Keyless Entry system. Refer to the Wiring
Diagrams group of this manual for component loca-
tions and circuit information. For additional diagnos-
tic information on lamp operation controlled by Body
Control Module (BCM) refer to the Body Diagnostic
Procedures Manual. For diagnosis of the reading
lamps and switches refer to (Fig. 3).
TRAVELER MESSAGES
Traveler data is obtained from the Body Control
Module (BCM) on the CCD bus wires. The CMTC
will not display information for any of the screens forwhich it did not receive the bus messages. The label
corresponding to the missing information will be lit.
If no traveler data is displayed, check the CCD com-
munications and the BCM. If the brightness level is
improper check the CCD bus. One general method
for checking the CCD bus communications between
CMTC and the BCM is refer to the following proce-
dure.
(1) STEP the CMTC to the Elapsed Time (ET).
(2) Press and release the reset button to reset the
module.
(3) If the elapsed time clock does not reset, or fails
to update, check the CCD wires and the BCM. The
DRB is recommended for checking the CCD and the
BCM.
(4) Perform the CMTC self diagnosis before replac-
ing the module.
UNIVERSAL TRANSMITTER
Before proceeding in diagnosis, check the transmit-
ter for battery voltage and a good ground at the
transmitter harness connector.
²The unit may not have been trained correctly,
try retraining the transmitter.
²The batteries in the hand-held transmitter may
be dead.
Fig. 3 Reading/Dome Lamp Diagnosis
NSOVERHEAD CONSOLE 8V - 3
DESCRIPTION AND OPERATION (Continued)

Installation
For installation, reverse the above procedures.
When installing the lamp lens, first guide the switch
contact tab on the lens between the lamp switch
plunger and the lamp bezel. Then snap lens onto the
two lens pivots on the bezel.
READING/COURTESY LAMP ASSEMBLY
Removal
(1) Disconnect the battery negative cable.
(2) Remove the overhead console.
(3) Remove the screws holding the reading lamp to
the overhead console (Fig. 12).
(4) Remove the lamp from the overhead console.(5) Disconnect the wire connectors from the back
of the reading lamp (Fig. 13).
(6) Disconnect the reading lamp switch from the
keyhole slot in the reading lamp.
(7) Remove the reading lamp from the overhead
console.
Installation
For installation, reverse the above procedures.
UNIVERSAL TRANSMITTER
REMOVAL
The Universal Transmitter is serviced with the
transmitter bin door, in the overhead console.
Fig. 8 Lamp and Lens Removal
NSOVERHEAD CONSOLE 8V - 7
REMOVAL AND INSTALLATION (Continued)