Test G: The Auxiliary Audio Control Is Inoperative/Does Not Operate Correctly - Rear Auxiliary Audio Controls

PINPOINT TEST G: THE AUXILIARY AUDIO CONTROL IS INOPERATIVE/DOES NOT OPERATE CORRECTLY - REAR AUXILIARY AUDIO CONTROLS

G1-G2:

G2-G4:

G4-G6:

G6-G8:

Normal Operation
The rear audio/climate control module receives voltage through circuit 1499 (PK/LG) and ground through circuit 676 (PK/OG). The rear audio/climate control module receives input from the rear auxiliary audio controls through circuit 595 (LB/RD). It then sends these signals to the audio unit over the audio corporate protocol (ACP) network through circuits 832 (LB/PK) and 833 (TN). While the audio unit is powered on, voltage is sent to the rear audio/climate control module through circuit 1068 (LG/BK).

Possible Causes
- Fuse
- Circuit 583 (YE) open or short to ground
- Circuit 595 (LB/RD) open, short to ground or voltage
- Circuit 676 (PK/OG) open
- Circuit 832 (LB/PK) open, short to ground or voltage
- Circuit 833 (TN) open, short to ground or voltage
- Circuit 1068 (LG/BK) open or short to ground
- Circuit 1499 (PK/LG) open
- Rear auxiliary audio controls
- Rear audio/climate control module
- Audio unit