TEMPERATURE GAUGE DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
NO POINTER
MOVEMENT.1. INTERNAL CLUSTER
FAILURE.1. PERFORM CLUSTER SELF-DIAGNOSTIC TEST
AND CHECK.
²IF TEMPERATURE GAUGE POINTER MOVES TO
CALIBRATION POINTS, LOOK FOR ANOTHER
POSSIBLE CAUSE OF FAILURE.
²IF THE POINTER DOESN'T MOVE DURING TEST,
VERIFY POWER AND GROUND ARE BEING
PROVIDED TO THE CLUSTER. IF YES, REPLACE
CLUSTER. IF NO, DETERMINE CAUSE OF NO
POWER OR NO GROUND.
2. NO PCI
TEMPERATURE
MESSAGE OR COLD PCI
BUS MESSAGE FROM
THE POWERTRAIN
CONTROL MODULE.2.A. CHECK PCM FAULT CODES USING A DRB IIIT
SCAN TOOL. IF THERE ARE NO FAULTS, GO TO
STEP 2.B. IF THERE ARE FAULTS, REFER TO THE
PROPER POWERTRAIN DIAGNOSTIC
PROCEDURES MANUAL TO PROPERLY DIAGNOSE
AND REPAIR.
2.B. REFER TO FUEL, COOLANT TEMPERATURE
SENSOR, DIAGNOSIS AND TESTING. REPAIR
SENSOR AS NEEDED.
ERRATIC POINTER
MOVEMENT.1. BAD PCI BUS
MESSAGE FROM THE
POWERTRAIN CONTROL
MODULE.1.A. CHECK PCM FAULT CODES USING A DRB IIIT
SCAN TOOL. IF THERE ARE NO FAULTS, GO TO
STEP 1.B. IF THERE ARE FAULTS, REFER TO THE
PROPER POWERTRAIN DIAGNOSTIC
PROCEDURES MANUAL TO PROPERLY DIAGNOSE
AND REPAIR.
1.B. REFER TO FUEL, COOLANT TEMPERATURE
SENSOR, DIAGNOSIS AND TESTING. REPAIR
SENSOR AS NEEDED.
2. INTERNAL CLUSTER
FAILURE.2. PERFORM CLUSTER SELF-DIAGNOSTIC TEST
AND CHECK FOR FAULT CODES.
²IF THE POINTER MOVES DURING TEST BUT
STILL APPEARS ERRATIC, REPLACE CLUSTER
ASSEMBLY.
TEMPERATURE GAUGE
INACCURATE.1. TEMPERATURE
GAUGE OUT OF
CALIBRATION.1. PERFORM CLUSTER SELF-DIAGNOSTIC TEST.
²IF POINTER IS ACCURATE TO THE CALIBRATION
POINTS LOOK FOR ANOTHER POSSIBLE CAUSE
OF FAILURE.
²IF POINTER IS INACCURATE TO THE
CALIBRATION POINTS, REPLACE CLUSTER
ASSEMBLY.
2. COOLANT SENSOR
OUT OF CALIBRATION.2. REFER TO FUEL, COOLANT TEMPERATURE
SENSOR FOR TEST AND REPAIR PROCEDURE.
8J - 8 INSTRUMENT CLUSTERRS
INSTRUMENT CLUSTER (Continued)
ProCarManuals.com
ODOMETER DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
NO DISPLAY. 1. NO PCI BUS
ODOMETER MESSAGE
FROM BCM.1. USE A DRB IIITSCAN TOOL TO CHECK THE
BCM. REFER TO THE PROPER BODY DIAGNOSTIC
PROCEDURES MANUAL TO PROPERLY DIAGNOSE
AND REPAIR.
2. INTERNAL CLUSTER
FAILURE.2. PERFORM CLUSTER SELF-DIAGNOSTIC TEST
AND CHECK FOR FAULT CODES.
²IF ODOMETER PASSES THE SEGMENT CHECK,
LOOK FOR ANOTHER POSSIBLE CAUSE OF
FAILURE. IF IT FAILS VERIFY POWER AND
GROUND ARE BEING PROVIDED TO THE
CLUSTER. IF YES, REPLACE CLUSTER. IF NO,
DETERMINE CAUSE OF NO POWER OR GROUND.
ERRATIC DISPLAY 1. INTERNAL CLUSTER
FAILURE.1. PERFORM CLUSTER SELF-DIAGNOSTIC TEST
AND CHECK FOR FAULT CODES.
²IF ODOMETER PASSES THE SEGMENT TEST,
FAILURE MAY NOT BE IN THE CLUSTER. LOOK
FOR ANOTHER POSSIBLE CAUSE OF FAILURE.
2. VERIFY GOOD POWER AND GROUND
CONNECTIONS. IF CONNECTIONS ARE GOOD AND
NO OTHER PROBLEMS ARE FOUND, REPLACE
CLUSTER ASSEMBLY.
2. BAD PCI BUS
MESSAGE FROM THE
BCM.2. USE A DRB IIITSCAN TOOL TO CHECK THE
BCM. REFER TO THE PROPER BODY DIAGNOSTIC
PROCEDURES MANUAL TO PROPERLY DIAGNOSE
AND REPAIR.
ODOMETER WON'T GO
INTO TRIP MODE.TRIP SWITCH DOESN'T
WORK.IF CLUSTER WILL NOT GO INTO SELF DIAGNOSTIC
MODE AND CANNOT TOGGLE BETWEEN
ODOMETER AND TRIP ODOMETER, REPLACE
CLUSTER.
TRIP ODOMETER WON'T
RESET.RESET SWITCH
DOESN'T WORK.IF CLUSTER WILL NOT GO INTO SELF DIAGNOSTIC
MODE AND TRIP ODOMETER WILL NOT RESET,
REPLACE CLUSTER.
RSINSTRUMENT CLUSTER8J-9
INSTRUMENT CLUSTER (Continued)
ProCarManuals.com
ELECTRONIC GEAR INDICATOR DISPLAY DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
NO DISPLAY. 1. INTERNAL CLUSTER
FAILURE.1. PERFORM CLUSTER SELF-DIAGNOSTIC TEST
AND CHECK FOR FAULT CODES.
²IF PRND3L (PRND1234 IF AUTOSTICK
EQUIPPED) PASSES THE SEGMENT CHECK, THEN
FAILURE MAY NOT BE IN THE CLUSTER. LOOK
FOR ANOTHER POSSIBLE CAUSE OF FAILURE. IF
IT FAILS, REPLACE CLUSTER ASSEMBLY.
ERRATIC DISPLAY. 1. INTERNAL CLUSTER
FAILURE.1. PERFORM CLUSTER SELF-DIAGNOSTIC TEST
AND CHECK FOR FAULT CODES.
²IF PRND3L (PRND1234 IF AUTOSTICK
EQUIPPED) PASSES THE SEGMENT CHECK, THEN
FAILURE MAY NOT BE IN THE CLUSTER. LOOK
FOR ANOTHER POSSIBLE CAUSE OF FAILURE.
2. BAD PCI BUS
MESSAGE FROM THE
TCM.2. USE A DRB IIITSCAN TOOL TO CHECK THE
TCM. REFER TO THE PROPER TRANSMISSION
DIAGNOSTIC PROCEDURES MANUAL TO
PROPERLY DIAGNOSE AND REPAIR.
ALL SEGMENTS ARE ON. 1. NO PCI BUS
MESSAGE FROM THE
TCM.1.A. PERFORM CLUSTER SELF-DIAGNOSTIC TEST.
IF PRND3L (PRND1234 IF AUTOSTICK EQUIPPED)
PASSES TEST GO TO STEP 1.B. IF PRND3L
(PRND1234 IF AUTOSTICK EQUIPPED) FAILS TEST,
REPLACE CLUSTER ASSEMBLY.
1.B. CHECK THE TCM USING A DRB IIITSCAN
TOOL. REFER TO THE PROPER TRANSMISSION
DIAGNOSTIC PROCEDURES MANUAL TO
PROPERLY DIAGNOSE AND REPAIR.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove Over Steering Column Bezel by lifting
it straight up with a firm pull.
(3) Remove the four cluster bezel attaching screws.
(4) Tilt the steering column in the full down posi-
tion.
(5) Pull rearward on the cluster bezel and remove.
(6) Remove the four screws holding instrument
cluster to instrument panel.
(7) Rotate top of cluster outward.
(8) Disconnect the cluster harness connector.
(9) Remove instrument cluster from instrument
panel.
INSTALLATION
(1) Connect the instrument cluster wire connector.
(2) Rotate top of cluster inward as placing into
instrument panel opening.
(3) Install the four screws holding instrument clus-
ter to instrument panel.
(4) Position cluster bezel into place.(5) Install the four bezel attaching screws.
(6) Install the Over Steering Column Bezel by
firmly snapping into place.
(7) Connect the battery negative cable.
CLUSTER LENS
REMOVAL
(1) Remove the instrument cluster. Refer to Elec-
trical, Instrument Cluster, Removal.
(2) Remove the screws holding the lens to the
instrument cluster.
(3) Press down on the snap features of the lens
and remove the lens from the cluster.
INSTALLATION
(1) Insert the lens snap features into the cluster.
(2) Install the screws holding the lens to the
instrument cluster.
(3) Install the instrument cluster. Refer to Electri-
cal, Instrument Cluster, Installation.
8J - 10 INSTRUMENT CLUSTERRS
INSTRUMENT CLUSTER (Continued)
ProCarManuals.com
MULTI-FUNCTION SWITCH
DESCRIPTION - TURN SIGNAL SYSTEM.....21
OPERATION - TURN SIGNAL SYSTEM.......21
DIAGNOSIS AND TESTING - MULTI-
FUNCTION SWITCH...................21
REMOVAL.............................21
INSTALLATION.........................21
PARK/TURN SIGNAL LAMP
REMOVAL.............................21
INSTALLATION.........................21
PARK/TURN SIGNAL LAMP - EXPORT
REMOVAL.............................22
INSTALLATION.........................22
REAR FOG LAMP - EXPORT
DESCRIPTION.........................22REPEATER LAMP - EXPORT
REMOVAL.............................22
INSTALLATION.........................22
TAIL LAMP
REMOVAL.............................22
INSTALLATION.........................22
TAIL LAMP - EXPORT
REMOVAL.............................23
INSTALLATION.........................23
TAIL LAMP UNIT
REMOVAL.............................23
INSTALLATION.........................23
LAMPS/LIGHTING - EXTERIOR
DESCRIPTION
LAMP SYSTEMS
Lighting circuits are protected by fuses. Lighting
circuits require an overload protected power and high
side drivers source, ON/OFF device, lamps and body
grounds to operate properly. Plastic lamps require a
wire in the harness to supply body ground to the
lamp socket. Replace sockets and bulbs that are cor-
roded.
Some of the interior and exterior lighting functions
are governed by the Body Control Module (BCM).
The headlamp, dome, and the door ajar switches pro-
vide signals to the BCM. The BCM in turn sends a
Programmable Communication Interface (PCI) bus
message to the Front Control Module (FCM) to
enable the necessary drivers to set the required illu-
mination configuration.
Wire connectors can make intermittent contact or
become corroded. Before coupling wire connectors,
inspect the terminals inside the connector. Male ter-
minals should not be bent or disengaged from the
insulator. Female terminals should not be sprung
open or disengaged from the insulator. Bent and
sprung terminals can be repaired using needle nose
pliers and pick tool. Corroded terminals appear
chalky or green. Corroded terminals should be
replaced to avoid recurrence of the problem symp-
toms.
Begin electrical system failure diagnosis by testing
related fuses in the fuse block and intelligent power
module. Verify that bulbs are in good condition and
test continuity of the circuit ground. Refer to the
appropriate wiring information.
AUTOMATIC HEADLAMP SYSTEM
The Automatic Headlamp system turns the instru-
mentation and exterior illumination lamps ON when
the ambient light levels are Night and the engine
RPM is 450 or above, and OFF when light levels are
Day.
DAYTIME RUNNING LAMPS
Operating the high-beam headlamps at reduced
power provides daytime running lamps, which are
required on all new Canadian vehicles.
HEADLAMPS ON WITH WINDSHIELD WIPERS
For vehicles equipped with the Automatic Head-
lamp System, the instrumentation and exterior illu-
mination lamps will be turned ON when the
headlamp switch is in the AUTO position, RPM >
450 and the windshield wipers have been in the
intermittent, low or high mode of operation for more
than ten seconds. When the windshield wipers are
turned OFF the Body Control Module will determine
if the instrumentation and exterior illumination
lamps should remain ON base upon the current
ambient light level.
HEADLAMP SYSTEM
The configuration of the headlamp system of head-
lamps, park lamps and fog lamps is determined by
the BCM. The BCM determines the lighting configu-
ration as a result of the inputs from the ignition
switch, headlamp switch and multi-function switch. A
PCI bus is transmitted from the BCM to the FCM to
enable the necessary drivers to set the illumination
configuration. Four wires are connected between the
headlamp switch and the BCM. The first wire con-
tains information regarding the position of the head-
lamp switch (Off, Automatic Headlamps, Automatic
Headlamp switch fog, Park with Fog, Head, or Head
with Fog Lamps). The second wire contains informa-
tion regarding the position of the dimmer switch
8L - 2 LAMPS/LIGHTING - EXTERIORRS
ProCarManuals.com
FRONT FOG LAMP DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
FOG LAMPS ARE DIM
WITH ENGINE IDLING
OR IGNITION TURNED
OFF.1. Loose or corroded battery
cables.1. Clean and secure battery cable clamps and
posts.
2. Loose or worn generator drive
belt.2. Adjust or replace generator drive belt.
3. Charging system output too low. 3. Test and repair charging system. Refer to
Electrical, Charging,
4. Battery has insufficient charge. 4. Test battery state-of-charge. Refer to
Electrical, Battery System.
5. Battery is sulfated or shorted. 5. Load test battery. Refer to Electrical, Battery
System.
6. Poor lighting circuit Z349/Z248
ground.6. Test for voltage drop across Z349/248
ground locations. Refer to Electrical, Wiring
Information.
FOG LAMP BULBS
BURN OUT
FREQUENTLY1. Charging system output too
high.1. Test and repair charging system. Refer to
Electrical, Charging.
2. Loose or corroded terminals or
splices in circuit.2. Inspect and repair all connectors and splices.
Refer to Electrical, Wiring Information.
FOG LAMPS ARE DIM
WITH ENGINE
RUNNING ABOVE IDLE1. Charging system output too low. 1. Test and repair charging system. Refer to
Electrical, Charging.
2. Poor lighting circuit Z349/Z248
ground.2. Test for voltage drop across Z349/Z248
ground locations. Refer to Electrical, Wiring
Information.
3. High resistance in fog lamp
circuit.3. Test amperage draw of fog lamp circuit.
FOG LAMPS FLASH
RANDOMLY1. Poor lighting circuit Z349/Z248
ground.1. Test for voltage drop across Z349/Z248
ground locations. Refer to Electrical, Wiring
Information.
2. Variable resistance in fog lamp
circuit.2. Test amperage draw of fog lamp circuit.
3. Faulty fog lamp switch (part of
headlamp switch).3. Replace headlamp switch.
4. Loose or corroded terminals or
splices in circuit.4. Inspect and repair all connectors and splices.
Refer to Electrical, Wiring Information.
5. Is relay engaging properly? 5. Verify function of fog lamp relay in IPM.
6. PCI Bus Communication. 6. Verify PCI bus message (fog lamp info)
transmitted from BCM and received by FCM.
FOG LAMPS DO NOT
ILLUMINATE1. Blown fuse for fog lamp. 1. Replace fuse. Refer to Electrical, Wiring
Information.
2. No Z349/Z248 ground at fog
lamps.2. Repair circuit ground. Refer to Electrical,
Wiring Information.
3. Faulty fog lamp switch (part of
headlamp switch).3. Replace headlamp switch.
4. Broken connector terminal or
wire splice in fog lamp circuit.4. Repair connector terminal or wire splice.
5. Faulty or burned out bulb. 5. Replace bulb.
6. Is relay engaging? 6. Verify function of fog lamp relay in IPM.
7. PCI Bus Communication. 7. Verify PCI bus message (fog lamp info)
transmitted from BCM and received by FCM.
8L - 8 LAMPS/LIGHTING - EXTERIORRS
FRONT FOG LAMP (Continued)
ProCarManuals.com
Before damaging a trim component, verify hidden
fasteners or captured edges are not holding the com-
ponent in place.
HEADLAMP DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
HEADLAMPS ARE DIM
WITH ENGINE IDLING
OR IGNITION TURNED
OFF.1. Loose or corroded battery
cables.1. Clean and secure battery cable clamps and
posts.
2. Loose or worn generator drive
belt.2. Adjust or replace generator drive belt.
3. Charging system output too low. 3. Test and repair charging system, refer to
Electrical, Charging
4. Battery has insufficient charge. 4. Test battery state-of-charge, refer to
Electrical, Battery System.
5. Battery is sulfated or shorted. 5. Load test battery, refer to Electrical, Battery
System.
6. Poor lighting circuit Z343/Z344-
ground.6. Test for voltage drop across Z343/Z344-
ground locations, refer to Electrical, Wiring
Diagram Information.
HEADLAMP BULBS
BURN OUT
FREQUENTLY.1. Integrated Power Module (IPM)
not controlling voltage.1. Test and repair Integrated Power Module.
2. Loose or corroded terminals or
splices in circuit.2. Inspect and repair all connectors and splices.
Refer to Electrical, Wiring Information.
HEADLAMPS ARE DIM
WITH ENGINE
RUNNING ABOVE IDLE.1. Charging system output too low. 1. Test and repair charging system, refer to
Electrical, Wiring Information.
2. Poor lighting circuit Z343/Z344-
ground.2. Test for voltage drop across Z343/Z344-
ground locations, refer to Electrical, Wiring
Information.
3. High resistance in headlamp
circuit.3. Test amperage draw of headlamp circuit.
HEADLAMPS FLASH
RANDOMLY1. Poor lighting circuit Z343/Z344-
ground.1. Test for voltage drop across Z343/Z344-
ground locations, refer to Electrical, Wiring
Information.
2. Variable resistance in headlamp
circuit.2. Test amperage draw of headlamp circuit.
3. Loose or corroded terminals or
splices in circuit.3. Inspect and repair all connectors and splices,
refer to Electrical, Wiring Information.
4. Faulty headlamp switch. 4. Replace headlamp switch.
8L - 12 LAMPS/LIGHTING - EXTERIORRS
HEADLAMP (Continued)
ProCarManuals.com
CONDITION POSSIBLE CAUSES CORRECTION
HEADLAMPS DO NOT
ILLUMINATE.1. No voltage to headlamps. 1. Repair open headlamp circuit, refer to
Electrical, Wiring Information.
2. No Z343/Z344-ground at
headlamps.2. Repair circuit ground, refer to Electrical,
Wiring Information.
3. Broken connector terminal or
wire splice in headlamp circuit.3. Repair connector terminal or wire splice.
4. Faulty or burned out bulb. 4. Replace headlamp bulb(s).
5. Body Control Module
malfunction.5. Refer to appropriate Body Control Module
diagnostics.
6. PCI Bus Communication 6. Verify messages being transmitted by BCM
and received by FCM.
7. IPM/FCM Malfunction. 7. Refer to appropriate IPM/FCM diagnostics.
HEADLAMPS ON WITH
IGNITION IN RUN, WITH
HEADLAMP SWITCH
OFF.1. Faulty headlamp switch. 1. Replace headlamp switch (review BCM
logged faults).
2. Diagnostic tool indicates (4.7 -
5.0V) on headlamp switch input to
BCM.2. Inspect and repair terminals, connectors and
open circuits.
3. PCI Bus Communication. 3. Verify messages being transmitted by BCM
and received by FCM.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove headlamp unit retaining screws.
(3) Remove headlamp unit to expose back of unit.
(4) Remove wiring connector from bulb.
(5) Rotate headlamp bulb retaining ring counter-
clockwise.
(6) Pull headlamp bulb and remove from headlamp
unit (Fig. 13).
INSTALLATION
(1) Install headlamp bulb to the headlamp unit.
(2) Install headlamp bulb retaining ring.
(3) Connect wiring connector to bulb.
(4) Install the headlamp unit.
(5) Install headlamp unit retaining screws.
(6) Reconnect the battery negative cable.
HEADLAMP - EXPORT
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the headlamp unit.
(3) Remove the cover (high beam lamp) or rubber
boot (low beam lamp) to access bulbs (Fig. 14).
(4) Disconnect the wire harness connector.
(5) Disengage spring clip from headlamp.
(6) Pull headlamp bulb from back of headlamp
unit.
INSTALLATION
(1) Insert headlamp bulb into headlamp unit.
(2) Engage spring clip to headlamp.
(3) Connect wire harness connector.
(4) Install the cover (high beam lamp) or rubber
boot (low beam lamp) to headlamp unit.
(5) Install the headlamp unit.
(6) Connect the battery negative cable.
Fig. 13 HEADLAMP
1 - HEADLAMP
2 - HEADLAMP UNIT
RSLAMPS/LIGHTING - EXTERIOR8L-13
HEADLAMP (Continued)
ProCarManuals.com
HEADLAMP LEVELING MOTOR
- EXPORT
DIAGNOSIS AND TESTING - HEADLAMP
LEVELING MOTOR - EXPORT
HEADLAMP LEVELING MOTOR DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
ONE MOTOR DOES NOT
OPERATE.1. Poor electrical connection at
motor1. Check for proper electrical connection at
motor
2. No voltage at motor 2. Repair no voltage condition. Refer to
Wiring Diagrams
3. No ground at motor 3. Repair no ground condition. Refer to
Wiring Diagrams
4. Defective motor 4. Replace leveling motor
BOTH MOTORS DO NOT
OPERATE1. No voltage at or from headlamp
leveling switch1. Repair no voltage condition. Check for
proper headlamp leveling switch operation
2. No voltage at leveling motors 2. Repair no voltage condition. Refer to
Wiring Diagrams
3. No ground at leveling motors 3. Repair no ground condition. Refer to
Wiring Diagrams
4. Both motors defective 4. Replace both motors
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove headlamp unit.(3) Disconnect electrical connector from headlamp
leveling motor.
(4) Remove the two mounting screws.
(5) Gently pry motor from headlamp unit (Fig. 15).
Fig. 14 HEADLAMP UNIT
1 - HIGH BEAM LAMP
2 - HEADLAMP LEVELING MOTOR
3 - LOW BEAM LAMP
4 - TURN LAMP
8L - 14 LAMPS/LIGHTING - EXTERIORRS
HEADLAMP - EXPORT (Continued)
ProCarManuals.com