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Symptom:
PCM MESSAGES NOT RECEIVED - AMPLIFIER
When Monitored and Set Condition:
PCM MESSAGES NOT RECEIVED - AMPLIFIER
When Monitored: With the ignition in run.
Set Condition: The module does not receive any messages from the PCM.
PCM MESSAGES NOT RECEIVED
ATTEMPT TO COMMUNICATE WITH THE PCM
PCI BUS CIRCUIT OPEN
POWERTRAIN CONTROL MODULE
TEST
1
Turn the ignition on.
With the DRBIII , enter Instrument Cluster, System Tests then PCM Monitor.
Does the DRBIII display: PCM active on the BUS?
Yes → Erase the DTC, if DTC resets, replace the Amplifier in accordance
→ Go To 2
No
2
Turn the ignition on.
With the DRBIII , attempt to communicate with the PCM.
Was the DRBIII able to communicate with the PCM?
Yes → Go To 3
→ Refer to the communication category and perform the appropriate
No
3
Turn the ignition off.
Disconnect the PCM harness connector.
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?
Yes → Replace and program the Powertrain Control Module in accor-
→ Repair the PCI Bus circuit for an open.
No
POSSIBLE CAUSES
ACTION
with the service information.
Perform BODY VERIFICATION TEST - VER 1.
symptom.
Perform BODY VERIFICATION TEST - VER 1.
dance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
281
AUDIO
APPLICABILITY
All
All
All
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