B113A Possible Causes
- Faulty Rear Audio Switch
- Rear Audio Switch harness is open or shorted
- Rear Audio Switch circuit poor electrical connection
- Faulty Rear Audio and Temperature Control (RATC) Module
First diagnose B113A code
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.
Cost of diagnosing the B113A code
Labor: 1.0The cost of diagnosing the B113A code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
B113A Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B113A MeaningThe Rear Audio and Temperature Control (RATC) Module receives voltage and ground through the circuit. The RATC module receives input from the rear auxiliary audio controls through the circuit. It then sends these signals to the audio unit over the Audio Corporate Protocol (ACP) network through circuits. The RATC module sets the OBDII code 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.
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