Bus Messages Missing

Tests 1 - 4:

SYMPTOM
BUS MESSAGES MISSING

WHEN MONITORED
While the Overhead Console 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 Overhead Console does not receive messages from the BCM, MIC or PCM.

POSSIBLE CAUSES
- BCM communication failure
- PCM communication failure
- MIC communication failure
- Overhead - bus messages missing