2001 CHRYSLER VOYAGER service

Symptom:
*AIRBAG INDICATOR ON WITHOUT ACTIVE TROUBLE CODES
POSSIBLE CAUSES
AIRBAG INDICATOR ON WITHOUT TROUBLE CODES
INSTRUMENT CLUSTER PROBLEMS
TEST ACTION APPLICABILITY
1 Turn the ignition on.
Make sure that all active DTCS have been repaired before pre forming this
procedure.
With the DRBIII select PASSIVE RESTRAINTS, AIRBAG, MONITOR DISPLAY,
WARNING LAMP STATUS and read the WARNING LAMP STATUS.
Does the DRB show LAMP REQ BY ACM: ON?All
Ye s®Replace the Occupant Restraint Controller in accordance with
Service Instructions. WARNING: make sure the battery is dis-
connected and wait 2 minutes before proceeding.
Perform AIRBAG VERIFICATION TEST - VER 1.
No®Refer to INSTRUMENT CLUSTER CATEGORY symptom list for
problems related to Instrument Cluster.
Perform AIRBAG VERIFICATION TEST - VER 1.
NOTE: When reconnecting Airbag system components, the ignition must be
turned off and the battery must be disconnected.
188
AIRBAG

Symptom:
ALL OUTPUTS SHORTED
When Monitored and Set Condition:
ALL OUTPUTS SHORTED
When Monitored: Ignition in RUN and IOD fuse installed.
Set Condition: The radio has sensed a short on the output for more than 10 seconds.
POSSIBLE CAUSES
DETERMINE FAULT
FRONT SHORTED SPEAKER
REAR SHORTED SPEAKER
(+) CIRCUIT SHORTED TO GROUND
(-) CIRCUIT SHORTED TO GROUND
SPEAKER (+) & (-) CIRCUITS SHORTED TOGETHER
SPEAKER SECTION OF RADIO
TEST ACTION APPLICABILITY
1 Turn the ignition on.
Turn the Radio on.
With the DRBIIIt, erase the audio DTC's.
Cycle the ignition switch from off to on and wait 10 seconds.
With the DRBIIIt, read the audio DTC's.
Does the DRBIIItdisplay ALL OUTPUTS SHORTED?All
Ye s®Go To 2
No®Refer to the wiring diagrams located in the service information to
help isolate a possible intermittent short.
Perform BODY VERIFICATION TEST - VER 1.
189
AUDIO

Symptom:
FRONT OUTPUT SHORT
When Monitored and Set Condition:
FRONT OUTPUT SHORT
When Monitored: Ignition in RUN and IOD fuse installed.
Set Condition: The radio has sensed a short on the front output for more than 10 seconds.
POSSIBLE CAUSES
DETERMINE FAULT
LEFT I/P SPEAKER
LEFT FRONT DOOR SPEAKER
RIGHT I/P SPEAKER
RIGHT FRONT DOOR SPEAKER
(+) CIRCUIT SHORTED TO GROUND
(-) CIRCUIT SHORTED TO GROUND
SPEAKER (+) & (-) CIRCUITS SHORTED TOGETHER
SPEAKER SECTION OF RADIO
TEST ACTION APPLICABILITY
1 Turn the ignition on.
Turn the Radio on.
With the DRBIIIt, erase the audio DTC's.
Cycle the ignition switch from off to on and wait 10 seconds.
With the DRBIIIt, read the audio DTC's.
Does the DRBIIItdisplay FRONT OUTPUT SHORT?All
Ye s®Go To 2
No®Refer to the wiring diagrams located in the service information to
help isolate a possible intermittent short.
Perform BODY VERIFICATION TEST - VER 1.
2 Turn the ignition off.
Disconnect the Left I/P Speaker harness connector.
Turn the ignition on.
Turn the radio on.
With the DRBIIIt, erase the audio DTCs.
Cycle the ignition switch from off to on and wait 10 seconds.
With the DRBIIIt, read DTC's.
Does the DRBIIItdisplay FRONT OUTPUT SHORT?All
Ye s®Go To 3
No®Replace the Left I/P Speaker.
Perform BODY VERIFICATION TEST - VER 1.
201
AUDIO

Symptom:
LEFT OUTPUT SHORT
When Monitored and Set Condition:
LEFT OUTPUT SHORT
When Monitored: Ignition in RUN and IOD fuse installed.
Set Condition: The radio has sensed a short on the left output for more than 10 seconds.
POSSIBLE CAUSES
DETERMINE FAULT
LEFT I/P SPEAKER
LEFT FRONT DOOR SPEAKER
LEFT REAR PILLAR SPEAKER
LEFT REAR SPEAKER
(+) CIRCUIT SHORTED TO GROUND
(-) CIRCUIT SHORTED TO GROUND
SPEAKER (+) & (-) CIRCUITS SHORTED TOGETHER
SPEAKER SECTION OF RADIO
TEST ACTION APPLICABILITY
1 Turn the ignition on.
Turn the Radio on.
With the DRBIIIt, erase the audio DTC's.
Cycle the ignition switch from off to on and wait 10 seconds.
With the DRBIIIt, read the audio DTC's.
Does the DRBIIItdisplay LEFT OUTPUT SHORT?All
Ye s®Go To 2
No®Refer to the wiring diagrams located in the service information to
help isolate a possible intermittent short.
Perform BODY VERIFICATION TEST - VER 1.
2 Turn the ignition off.
Disconnect the Left I/P Speaker harness connector.
Turn the ignition on.
Turn the radio on.
With the DRBIIIt, erase the audio DTCs.
Cycle the ignition switch from off to on and wait 10 seconds.
With the DRBIIIt, read DTC's.
Does the DRBIIItdisplay LEFT OUTPUT SHORT?All
Ye s®Go To 3
No®Replace the Left I/P Speaker.
Perform BODY VERIFICATION TEST - VER 1.
204
AUDIO

Symptom List:
NBS OUTPUT 1 OPEN
NBS OUTPUT 2 OPEN
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be NBS OUTPUT 1 OPEN.
When Monitored and Set Condition:
NBS OUTPUT 1 OPEN
When Monitored: Continuously.
Set Condition: If the FCM detects no voltage present on the NBS relay control circuit.
NBS OUTPUT 2 OPEN
When Monitored: Continuously.
Set Condition: If the FCM detects no voltage present on the NBS relay control circuit.
POSSIBLE CAUSES
CHECK DTCS
FUSED B+ CIRCUIT OPEN
NBS RELAY OPEN
NBS RELAY CONTROL CIRCUIT OPEN
FRONT CONTROL MODULE
TEST ACTION APPLICABILITY
1 Turn the ignition on.
NOTE: If neither DTC will reset or is active, refer to the wiring diagrams
located in the service information to help isolate a possible intermittent
condition.
With the DRB, read the FCM DTC's.
Are both the NBS Output 1 Open and the NBS Output 2 Open DTC's set?All
Ye s®Go To 2
No®Replace the Front Control Module in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
2 Remove the NBS Relay from the IPM.
Using a 12-volt test light connected to ground, probe cavity 86 of the NBS Relay
connector.
Is the test light illuminated?All
Ye s®Go To 3
No®Check IPM Fuse #14 for an open. If OK, replace the Intelligent
Power Module (IPM).
Perform BODY VERIFICATION TEST - VER 1.
207
AUDIO

TEST ACTION APPLICABILITY
3 Turn the ignition off.
Install a substitute relay in place of the NBS Relay.
With the DRB, erase DTCs.
Turn the ignition on.
Turn the Radio on.
With the DRB, read DTCs.
Did these DTCs reset?All
Ye s®Go To 4
No®Replace the original NBS Relay.
Perform BODY VERIFICATION TEST - VER 1.
4 Turn the ignition off.
Remove the Front Control Module from the IPM.
Remove the NBS Relay from the IPM.
Measure the resistance of the NBS Relay Control circuit between the FCM connector
cavity 11 and the NBS Relay connector cavity 85.
Is the resistance below 5.0 ohms?All
Ye s®Replace the Front Control Module in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
No®Replace the Intelligent Power Module (IPM).
Perform BODY VERIFICATION TEST - VER 1.
208
AUDIO
NBS OUTPUT 1 OPEN ÐContinued

Symptom List:
NBS OUTPUT 1 SHORT TO BATT
NBS OUTPUT 2 SHORT TO BATT
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be NBS OUTPUT 1 SHORT TO
BATT.
When Monitored and Set Condition:
NBS OUTPUT 1 SHORT TO BATT
When Monitored: With the ignition on and the Radio on.
Set Condition: The FCM detects excessive current when attempting to close the NBS
relay.
NBS OUTPUT 2 SHORT TO BATT
When Monitored: With the ignition on and the Radio on.
Set Condition: The FCM detects excessive current when attempting to close the NBS
relay.
POSSIBLE CAUSES
CHECK DTCS
NBS RELAY SHORTED
NBS RELAY CONTROL CIRCUIT SHORTED TO BATTERY
FRONT CONTROL MODULE
TEST ACTION APPLICABILITY
1 Turn the ignition on.
Turn the Radio on.
NOTE: If neither DTC will reset or is active, refer to the wiring diagrams
located in the service information to help isolate a possible intermittent
condition.
With the DRB, read the FCM DTC's.
Are both the NBS Output 1 Short to Batt and the NBS Output 2 Short to Batt DTC's
set?All
Ye s®Go To 2
No®Replace the Front Control Module in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
209
AUDIO

TEST ACTION APPLICABILITY
2 Turn the ignition off.
Install a substitute relay in place of the NBS Relay.
With the DRB, erase DTCs.
Turn the ignition on.
Turn the Radio on.
With the DRB, read DTCs.
Did these DTCs reset?All
Ye s®Go To 3
No®Replace the original NBS Relay.
Perform BODY VERIFICATION TEST - VER 1.
3 Turn the ignition off.
Remove the Front Control Module from the IPM.
Remove the NBS Relay from the IPM.
Turn the ignition on.
Using a 12-volt test light connected to ground, probe the NBS Relay connector cavity
85.
Is the test light illuminated?All
Ye s®Replace the Intelligent Power Module (IPM).
Perform BODY VERIFICATION TEST - VER 1.
No®Replace the Front Control Module in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
210
AUDIO
NBS OUTPUT 1 SHORT TO BATT ÐContinued