Symptom:
PCM MESSAGES NOT RECEIVED
When Monitored and Set Condition:
PCM MESSAGES NOT RECEIVED
When Monitored: With the ignition on.
Set Condition: The Instrument Cluster detects no PCM bus messages received for 6
seconds.
POSSIBLE CAUSES
INTERMITTENT CONDITION
NO RESPONSE - PCI BUS - PCM
INSTRUMENT CLUSTER
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, select Body Controller and System Test.
Does the DRBIIIt display PCM Active on the Bus?
All
Yes → Go To 2
No → Refer to symptom *NO RESPONSE FROM PCM (PCI BUS) in the
communication category.
Perform BODY VERIFICATION TEST - VER 1.
2 With the DRBIIIt, erase DTCs.
Cycle the ignition and wait approximately 1 minute.
With the DRBIIIt, read DTCs.
Did this DTC reset?
All
Yes → Replace the Instrument Cluster in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
No → The condition is not present at this time. Monitor DRBIIIt
parameters while wiggling the related wire harness. Refer to any
Technical Service Bulletins (TSB) that may apply. Visually in-
spect the related wiring harness and connector terminals.
Perform BODY VERIFICATION TEST - VER 1.
282
INSTRUMENT CLUSTER