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Test A: The Audio Control Module (ACM) Is Inoperative
PINPOINT TEST A: THE AUDIO CONTROL MODULE (ACM) IS INOPERATIVENormal Operation
The audio control module (ACM) is functional with the key in RUN or ACC. The ACM receives voltage at all times through circuit 797 (LG/VT), power in RUN/ACC through circuit 54 (LG/YE) (with accessory delay) or circuit 489 (PK/BK) (without accessory delay), and ground through circuits 57 (BK) and 694 (BK/LG).
This pinpoint test is intended to diagnose the following:
- Fuse
- Wiring, terminals or connectors
- ACM