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Symptom List: PCM STATUS FAILURE Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be PCM STATUS FAILURE. When Monitored and Set Condition: PCM STATUS FAILURE When Monitored: With the ignition on. Set Condition: This DTC exists when a PCM STATUS message was not received from the PCM for at least 20.0 consecutive seconds. SERIAL LINK EXTERNAL FAULT When Monitored: At ignition on, after ignition on during any rolling code handshake that occurs with the PCM due to a SKIM reset, or during SECRET KEY transfers to the PCM. Set Condition: When the SKIM does not receive an expected PCI BUS message trans- mission acknowledgement from the PCM after 3 transmit attempts. POSSIBLE CAUSES INTERMITTENT WIRING HARNESS PROBLEM WIRING HARNESS INSPECTION SKIM/PCM TEST ACTION APPLICABILITY 1 NOTE: Ensure the PCM has proper power and ground connections before t, read and record the SKIM DTCs then erase the SKIM DTCs. Turn the ignition off. t, read the SKIM DTCs. Does the DRBIII t display the DTC that was previously erased? All Yes → Go To 2 No → Go To 4 530 SENTRY KEY IMMOBILIZER |