Chrysler RG Voyager. Manual — part 128
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 DRBIII
t, enter Instrument Cluster, System Tests then PCM Monitor.
Does the DRBIII
t display: PCM is active on BUS?
All
Yes
→ Erase the DTC, if DTC resets, replace the Body Control Module in
accordance with the service information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 2
2
Turn the ignition on.
With the DRBIII
t, attempt to communicate with the PCM.
Was the DRBIII
t able to communicate with the PCM?
All
Yes
→ Go To 3
No
→ Refer to the communication category and perform the appropriate
symptom.
Perform BODY VERIFICATION TEST - VER 1.
481
COMMUNICATION
TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the PCM harness connector. Note: If equipped with NGC follow the
caution below.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the PCI Bus circuit between the DLC and the PCM
connector.
Is the resistance below 5.0 ohms?
All
Yes
→ 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.
482
COMMUNICATION
PCM MESSAGES NOT RECEIVED —
Continued
Symptom:
RADIO MEM MSG NOT RECEIVED
When Monitored and Set Condition:
RADIO MEM MSG NOT RECEIVED
When Monitored:
With the ignition in run, and the IOD fuse installed.
Set Condition:
The BCM does not receive any radio memory messages.
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE RADIO
CHECK THE MEMORY SYSTEM
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRB, attempt to communicate with the Radio.
Was the DRB able to I/D or communicate with the Radio?
All
Yes
→ Go To 2
No
→ Refer to the Communication category for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition on.
Operate the memory seat system.
Did the memory seat system operate properly?
All
Yes
→ Go To 3
No
→ Refer to the Memory Seat category and perform the appropriate
symptom.
Perform BODY VERIFICATION TEST - VER 1.
3
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
Yes
→ Replace the Body Control Module in accordance with the service
information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Test Complete.
483
COMMUNICATION
Symptom:
RIGHT PSD MESSAGES NOT RECEIVED
When Monitored and Set Condition:
RIGHT PSD MESSAGES NOT RECEIVED
When Monitored:
When the Body Control Module is awake.
Set Condition:
The BCM does not sense a response from the Right Power Sliding Door
Module.
POSSIBLE CAUSES
CHECK FOR DTCS
VERIFY DTC
ATTEMPT TO COMMUNICATE WITH THE RIGHT SLIDING DOOR CONTROL MODULE
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, read BCM DTC’s.
Are any IOD Wakeup power sliding door DTC’s set?
All
Yes
→ Refer to symptom list for problems related to the IOD wakeup
circuit.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 2
2
Turn the ignition on.
With the DRBIII
t, erase DTC’s.
Operate the right power sliding door with either the key fob or the overhead console.
With the DRBIII
t, read BCM DTC’s.
Did this DTC reset?
All
Yes
→ Go To 3
No
→ The condition that caused this DTC is currently not present. Use
the wiring diagrams/schematic as a guide, and inspect the related
wiring harness for a possible intermittent.
Perform BODY VERIFICATION TEST - VER 1.
3
Turn the ignition on.
With the DRB, attempt to communicate with the Right Sliding Door Control Module.
Was the DRB able to I/D or communicate with the Right Sliding Door Control
Module?
All
Yes
→ Go To 4
No
→ Refer to the Communication category for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1.
484
COMMUNICATION
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