AutoCodes – Generic – B113C

B113C Code - Rear Audio Switch Circuit Short to Battery

Quick Answer

The Rear Audio and Temperature Control (RATC) Module receives voltage and ground through the circuit. Common causes include Faulty Rear Audio Switch, Rear Audio Switch harness is open or shorted, Rear Audio Switch circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
B113C indicates Rear Audio Switch Circuit Short to Battery.
Common causes
Common causes include Faulty Rear Audio Switch, Rear Audio Switch harness is open or shorted, Rear Audio Switch circuit poor electrical connection.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 1,850
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Nov 19, 2024
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Code B113C Description

The 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 short to voltage is detected on the circuitry between the RATC module and the rear auxiliary audio switch.
OBDII Code B113C - Rear Audio Switch Circuit Short to Battery - AutoCodes.com
B113C Code - Rear Audio Switch Circuit Short to Battery

What are the Possible Causes of the DTC B113C?

  • 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

How to Fix the DTC B113C?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B113C code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the B113C code?

Need more information on how to fix the B113C code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B113C code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B113C Code

1. What are common symptoms of OBDII code B113C (Rear Audio Switch Circuit Short to Battery)?

- Common symptoms include the rear audio switch not functioning properly or being unresponsive, and possible issues with the audio system in the rear of the vehicle.

2. What can cause the OBDII code B113C to trigger?

- This code is typically triggered by a short circuit between the rear audio switch circuit and the battery, often caused by damaged wiring or a faulty switch.

3. How can I diagnose the issue related to the OBDII code B113C?

- To diagnose this issue, you can use a scan tool to read the code, visually inspect the wiring and switch for any damage, and perform continuity tests to pinpoint the short circuit.

4. What are some repair tips for resolving the OBDII code B113C?

- Repair tips include repairing or replacing damaged wiring, replacing the rear audio switch if necessary, and ensuring all connections are secure and free of corrosion.

5. Can I drive my vehicle with the OBDII code B113C present?

- It is generally not recommended to drive with this code present, as it can indicate a potential electrical issue that may affect the proper functioning of the audio system or other components.

6. Can resetting the OBDII code B113C resolve the issue?

- Resetting the code may temporarily clear the warning light, but it will not fix the underlying issue causing the short circuit between the rear audio switch circuit and the battery.

7. How much does it typically cost to repair OBDII code B113C?

- The cost of repair can vary depending on the extent of the damage and whether professional diagnosis and repair are needed, but it may range from a DIY fix with minimal cost to a more expensive repair involving wiring replacement.

8. Are there any preventative measures to avoid OBDII code B113C in the future?

- Regularly inspecting the wiring and components related to the rear audio switch, avoiding water damage, and addressing any electrical issues promptly can help prevent the recurrence of this code.

9. Can OBDII code B113C cause any other problems in the vehicle?

- While this code specifically relates to the rear audio switch circuit, unresolved electrical issues can potentially lead to other problems with the vehicle's electrical system or audio components if left unaddressed.

10. Is it necessary to visit a mechanic for OBDII code B113C, or can I fix it myself?

- Depending on your skill level and access to tools, you may be able to fix this issue yourself by troubleshooting the wiring and switch. However, if you are unsure or need further assistance, it is recommended to consult a professional mechanic.

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