instrument cluster CHRYSLER VOYAGER 2001 Owner's Manual

Symptom:
*CHIME INOPERATIVE
POSSIBLE CAUSES
CHIME DRIVER CIRCUIT - OPEN
CHIME DRIVER CIRCUIT - SHORT TO GROUND
CHIME DRIVER CIRCUIT - SHORT TO VOLTAGE
INSTRUMENT CLUSTER
BCM
TEST ACTION APPLICABILITY
1 With the DRBIIIt, actuate the CHIME. (BCM actuator)
Does chime sound a warning?All
Ye s®Test Complete.
No®Go To 2
2 Disconnect the Instrument Cluster harness connector(s).
Disconnect the BCM harness connector(s).
Using a 12-volt test light connected to 12-volts, check the chime driver circuit for a
short to ground.
Does the test light illuminate brightly?All
Ye s®Repair the chime driver circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 3
3 Disconnect the Instrument Cluster harness connector(s).
Disconnect the BCM harness connector(s).
Using a DVOM connected to ground, check the chime driver circuit for a short to
voltage.
Is the voltage above 5.0 volts?All
Ye s®Repair the chime driver circuit for a short to voltage.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 4
4 Reconnect the BCM if disconnected in previous step.
Disconnect the Instrument Cluster harness connectors.
Using a 12-volt test light connected to 12-volts, check the chime driver circuit at the
Instrument Cluster connector.
With the DRBIIIt, actuate the CHIME. (BCM actuator)
Does the test light illuminate ON and OFF?All
Ye s®Replace the Instrument Cluster.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 5
334
CHIME

TEST ACTION APPLICABILITY
5 Disconnect the Instrument Cluster harness connectors.
Disconnect the BCM harness connector(s).
Measure the resistance of the chime driver circuit between the Instrument Cluster
connector and the BCM connector.
Is the resistance below 5.0 ohms?All
No®Repair the chime driver circuit for an open, between the Instru-
ment Cluster and the BCM.
Perform BODY VERIFICATION TEST - VER 1.
Ye s®Replace the BCM.
Perform BODY VERIFICATION TEST - VER 1.
335
CHIME
*CHIME INOPERATIVE ÐContinued

Symptom:
FCM, PCM COMMUNICATION FAULT
When Monitored and Set Condition:
FCM, PCM COMMUNICATION FAULT
When Monitored: With the ignition in run, and the IOD fuse installed.
Set Condition: The FCM does not receive any messages from the PCM for at least 5
seconds.
POSSIBLE CAUSES
PCM COMMUNICATION FAULT
ATTEMPT TO COMMUNICATE WITH THE PCM
PCI BUS CIRCUIT OPEN
POWERTRAIN CONTROL MODULE
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRB, enter Instrument Cluster, System Tests then PCM Monitor.
Does the DRB display: PCM is active on BUS?All
Ye s®Erase the DTC, if DTC resets, replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 2
2 Turn the ignition on.
With the DRB, attempt to communicate with the PCM.
Was the DRB able to communicate with the PCM?All
Ye s®Go To 3
No®Refer to the communication category and perform the appropriate
symptom.
Perform BODY VERIFICATION TEST - VER 1.
3 Turn the ignition off.
Disconnect the PCM C2 harness connector.
Connect the diagnostic junction port tester #8339 to the diagnostic junction port.
Note: Do not connect the tester to the DRB.
Measure the resistance of the PCI Bus circuit between the diagnostic junction port
tester and the PCM C2 connector.
Is the resistance below 5.0 ohms?All
Ye s®Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No®Repair the PCI Bus circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
347
COMMUNICATION

Symptom:
MIC MESSAGES NOT RECEIVED
When Monitored and Set Condition:
MIC MESSAGES NOT RECEIVED
When Monitored: With the ignition in run, and the IOD fuse installed.
Set Condition: The BCM does not receive any messages from the Instrument Cluster
(MIC) for at least 5 seconds.
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE MIC
BODY CONTROL MODULE
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRB, attempt to communicate with the Instrument Cluster (MIC).
Was the DRB able to I/D or communicate with the Instrument Cluster (MIC)?All
Ye s®Go To 2
No®Refer to the Communication category for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1.
2 With the DRB, erase DTC's.
Cycle the ignition switch from off to on and wait approximately 1 minute.
With the DRB, read DTC's.
Did this DTC reset?All
Ye s®Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
No®Test Complete.
360
COMMUNICATION

Symptom:
PCM MESSAGES NOT RECEIVED
When Monitored and Set Condition:
PCM MESSAGES NOT RECEIVED
When Monitored: With the ignition in run, and the IOD fuse installed.
Set Condition: The BCM does not receive any messages from the PCM for at least 5
seconds.
POSSIBLE CAUSES
PCM MESSAGE NOT RECEIVED
ATTEMPT TO COMMUNICATE WITH THE PCM
PCI BUS CIRCUIT OPEN
POWERTRAIN CONTROL MODULE
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRB, enter Instrument Cluster, System Tests then PCM Monitor.
Does the DRB display: PCM is active on BUS?All
Ye s®Erase the DTC, if DTC resets, replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 2
2 Turn the ignition on.
With the DRB, attempt to communicate with the PCM.
Was the DRB able to communicate with the PCM?All
Ye s®Go To 3
No®Refer to the communication category and perform the appropriate
symptom.
Perform BODY VERIFICATION TEST - VER 1.
3 Turn the ignition off.
Disconnect the PCM C2 harness connector.
Connect the diagnostic junction port tester #8339 to the diagnostic junction port.
Note: Do not connect the tester to the DRB.
Measure the resistance of the PCI Bus circuit between the diagnostic junction port
tester and the PCM C2 connector.
Is the resistance below 5.0 ohms?All
Ye s®Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No®Repair the PCI Bus circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
367
COMMUNICATION

Symptom:
*BUS +/- SIGNALS OPEN OR NO RESPONSE FROM INSTRUMENT
CLUSTER
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE BCM
OPEN GROUND CIRCUIT
OPEN FUSED B+ CIRCUIT
OPEN PCI BUS CIRCUIT
INSTRUMENT CLUSTER WAKE UP SENSE CKT OPEN
INSTRUMENT CLUSTER WAKE UP SENSE CKT INTERNALLY OPEN
INSTRUMENT CLUSTER WAKE UP SENSE CKT SHORTED TO VOLTAGE
INSTRUMENT CLUSTER WAKE UP SENSE CKT INTERNALLY SHORTED TO VOLTAGE
INSTRUMENT CLUSTER
BODY CONTROL MODULE
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRB, enter Body then Body Computer.
Was the DRB able to I/D or communicate with the BCM?All
Ye s®Go To 2
No®Refer to the symptom list for problems related to no communica-
tion with the BCM.
Perform BODY VERIFICATION TEST - VER 1.
2 Turn the ignition off.
Turn all lights off.
Disconnect the Instrument Cluster harness connector.
Measure the resistance between ground and both ground circuits.
Is the resistance below 10.0 ohms?All
Ye s®Go To 3
No®Repair the ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
3 Turn the ignition off.
Disconnect the Instrument Cluster harness connector.
Using a 12-volt test light connected to ground, probe the Fused B+ circuit.
Is the test light illuminated?All
Ye s®Go To 4
No®Repair the Fused B+ circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
383
COMMUNICATION

TEST ACTION APPLICABILITY
4Note: Ensure there is PCI Bus communication with other modules on the
vehicle before proceeding. If not, refer to the symptom list from the menu
and repair as necessary.
Disconnect the Instrument Cluster harness connector.
Use Scope input cable CH7058, Cable to Probe adapter CH7062, and the red and
black test probes.
Connect the scope input cable to the channel one connector on the DRB. Attach the
red and black leads and the cable to probe adapter to the scope input cable.
With the DRBIIItselect Pep Module Tools.
Select lab scope.
Select Live Data.
Select 12 volt square wave.
Press F2 for Scope.
Press F2 and use the down arrow to set voltage range to 20 volts. Press F2 again
when complete.
Connect the Black lead to the chassis ground. Connect the Red lead to the PCI Bus
circuit in the Instrument Cluster connector.
Turn the ignition on.
Observe the voltage display on the DRB Lab Scope.
Does the voltage pulse from 0 to approximately 7.5 volts?All
Ye s®Go To 5
No®Repair the PCI Bus circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
5 Turn the ignition off.
Reconnect the Instrument Cluster harness connector.
Disconnect the BCM C4 harness connector.
Turn the ignition on.
Measure the voltage of the Instrument Cluster Wake Up Sense circuit in the BCM C4
connector.
Is the voltage above 10.0 volts?All
Ye s®Go To 6
No®Go To 9
6 Turn the ignition off.
Disconnect the BCM C4 harness connector.
Turn the ignition on.
Using a 12-volt test light connected to ground, probe the Instrument Cluster Wake
Up Sense circuit.
Is the test light illuminated?All
Ye s®Go To 7
No®Go To 8
384
COMMUNICATION
*BUS +/- SIGNALS OPEN OR NO RESPONSE FROM INSTRUMENT CLUS-
TER Ð
Continued

TEST ACTION APPLICABILITY
7 Turn the ignition off.
Disconnect the BCM C4 harness connector.
Disconnect the Instrument Cluster harness connector.
Turn the ignition on.
Using a 12-volt test light connected to ground, probe the Instrument Cluster Wake
Up Sense circuit.
Is the test light illuminated?All
Ye s®Repair the Instrument Cluster Wake Up Sense circuit for a short
to voltage.
Perform BODY VERIFICATION TEST - VER 1.
No®Replace the Instrument Cluster.
Perform BODY VERIFICATION TEST - VER 1.
8 Turn the ignition off.
Reconnect the BCM C4 harness connector.
Disconnect the Instrument Cluster harness connector.
Measure the resistance between ground and the Instrument Cluster Wake Up Sense
circuit at the Instrument Cluster connector.
Open and close a door. This is done to ensure the BCM is awake.
Is the resistance below 50.0 ohms?All
Ye s®Replace the Instrument Cluster.
Perform BODY VERIFICATION TEST - VER 1.
No®Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
9 Turn the ignition off.
Disconnect the Instrument Cluster harness connector.
Disconnect the BCM C4 harness connector.
Measure the resistance of the Instrument Cluster Wake Up Sense circuit between the
BCM C4 connector and the MIC connector.
Is the resistance below 5.0 ohms?All
Ye s®Replace the Instrument Cluster.
Perform BODY VERIFICATION TEST - VER 1.
No®Repair the Instrument Cluster Wake Up Sense circuit for an
open.
Perform BODY VERIFICATION TEST - VER 1.
385
COMMUNICATION
*BUS +/- SIGNALS OPEN OR NO RESPONSE FROM INSTRUMENT CLUS-
TER Ð
Continued

Symptom List:
BACKLIGHT DIMMING RX FAILURE (ACTIVE) - MANUAL A/C
NO BCM MESSAGE RECEIVED (ACTIVE) - MANUAL A/C
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be BACKLIGHT DIMMING RX
FAILURE (ACTIVE) - MANUAL A/C.
When Monitored and Set Condition:
BACKLIGHT DIMMING RX FAILURE (ACTIVE) - MANUAL A/C
When Monitored: With the ignition on.
Set Condition: If the A/C - Heater Control Module does not receive the dimming function
message from the BCM for more than 5 seconds, then the A/C - Heater Control Module
LEDs will default to full brightness and the DTC will set.
NO BCM MESSAGE RECEIVED (ACTIVE) - MANUAL A/C
When Monitored: With the igntion on.
Set Condition: If the A/C - Heater Control Module does not receive the dimming function
message from the BCM for more than 5 seconds, then the A/C - Heater Control Module
LEDs will default to full brightness and the DTC will set.
POSSIBLE CAUSES
ADDITIONAL CODE(S) PRESENT
A/C - HEATER CONTROL MODULE
BODY CONTROL MODULE - NO DIM MESSAGE TO A/C - HEATER CONTROL MODULE
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, read the BCM codes.
Does DRBIIItdisplay Headlamp Switch: Mismatch; STG; Open; or Panel Dim
Output Short?All
Ye s®Refer to symptoms Headlamp Switch Mismatch, Headlamp
Switch Shorted To Ground, and Headlamp Switch Open in the
Exterior Lighting catagory. Refer to symptom Panel Dimming
Output Short in the Instrument Cluster catagory.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 2
519
HEATING & A/C

Symptom:
ABS LAMP CKT SHORT
POSSIBLE CAUSES
EMIC - INTERNAL ERROR
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, record and erase DTC's.
Turn the ignition off, wait 15 seconds, then turn the ignition on.
With the DRBIIIt, read DTCs.
Did the DTC return?All
Ye s®Go To 2
No®Test Complete.
2 If there are no possible causes remaining, view repair. All
Repair
Replace the EMIC.
Perform BODY VERIFICATION TEST - VER 1.
561
INSTRUMENT CLUSTER