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Symptom: BUS MESSAGES MISSING When Monitored and Set Condition: BUS MESSAGES MISSING When Monitored: While the EVIC is performing a series of tests on the microprocessor, compass coil, and internal circuitry. Set Condition: The code will be set, if during the self test the EVIC does not receive messages from the BCM, FCM, EATX or PCM. POSSIBLE CAUSES BCM COMMUNICATION PCM COMMUNICATION FCM COMMUNICATION EATX COMMUNICATION EVIC TEST ACTION APPLICABILITY 1 Turn the ignition on. t, attempt to communicate with BCM. Can communication be established with the BCM? All Yes → Go To 2 No → Refer to Communication Category and perform the appropriate system. 2 Turn the ignition on. t, access Body Control Module. Select Body Controller and System test. t display PCM Active on the Bus? All Yes → Go To 3 No → Refer to Communication Category and perform the appropriate system. 3 Turn the ignition on. t, attempt to communicate with the FCM. Can communication be established with the FCM? All Yes → Go To 4 No → Refer to Communication Category and perform the appropriate system. 735 OVERHEAD CONSOLE |