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Symptom: PCM MESSAGES NOT RECEIVED When Monitored and Set Condition: PCM MESSAGES NOT RECEIVED When Monitored: With the ignition is in the run position. 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. 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. No → Go To 2 2 Turn the ignition on. 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. 3 Turn the ignition off. All Yes → Replace and program the Powertrain Control Module in accor- dance with the Service Information. No → Repair the PCI Bus circuit for an open. Perform BODY VERIFICATION TEST - VER 1. 153 COMMUNICATION |