Test A: The Audio Unit Is Inoperative/Does Not Operate Correctly

PINPOINT TEST A: THE AUDIO UNIT IS INOPERATIVE/DOES NOT OPERATE CORRECTLY

Normal Operation
The audio unit receives voltage at all times through circuit 1772 (VT), and voltage in RUN or ACC through circuit 964 (DB/LG). The audio unit receives ground through circuit 694 (BK/LG).

This pinpoint test is intended to diagnose the following:
- Fuse
- Wiring, terminals or connectors
- Audio unit

A1-A4:

A4-A5:

A5 Continued: