Test F: The Rear Auxiliary Audio Controls Are Inoperative/Do Not Operate Correctly
PINPOINT TEST F: THE REAR AUXILIARY AUDIO CONTROLS ARE INOPERATIVE/DO NOT OPERATE CORRECTLYNormal Operation
The rear audio and temperature control (RATC) module receives voltage through circuit 1499 (PK/LG) and ground through circuit 676 (PK/OG). The RATC 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).
- DTC B113A (Rear Audio Switch Stuck) - sets when a rear auxiliary audio control switch is detected active for greater than 120 seconds during normal operation, or for greater than 2 seconds during the self-test.
- DTC B113B (Rear Audio Switch Circuit Short to Ground) - sets when a short to ground is detected on the circuitry between the RATC module and the rear auxiliary audio switch.
- DTC B113C (Rear Audio Switch Circuit Short to Battery) - sets when a short to voltage is detected on the circuitry between the RATC module and the rear auxiliary audio switch.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Rear auxiliary audio controls
- RATC module
- Audio unit
F1-F2:
F2-F4:
F5-F7:
