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

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

A1:

A1-A3:

A3 Continued:

Normal Operation
The audio unit is powered through circuits 1001 (WH/YE), 1002 (BK/PK), and 1003 (GY/YE). The audio unit ground is received through the circuits 1204 (BK/OG) and 1203 (BK/LB).

Possible Causes
- circuit 1001 (WH/YE) open
- circuit 1002 (BK/PK) open
- circuit 1003 (GY/YE) open or short to voltage
- circuit 1203 (BK/LB) open
- circuit 1204 (BK/OG) open
- circuit 1205 (BK) open
- audio unit