AutoCodes – Mercury – B113B Mercury

B113B Mercury Code - Rear Audio Switch Circuit Short to Ground

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: B113B Mercury indicates Rear Audio Switch Circuit Short to Ground.
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.

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Code Popularity 801

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 19, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B113B Mercury 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 ground is detected on the circuitry between the RATC module and the rear auxiliary audio switch.

OBDII Code B113B Mercury - Rear Audio Switch Circuit Short to Ground - AutoCodes.com — B113B Mercury Code - Rear Audio Switch Circuit Short to Ground

What does this mean?

What are the Possible Causes of the DTC B113B Mercury?

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 B113B Mercury?

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 B113B Mercury 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 B113B Mercury code?

Need more information on how to fix the B113B Mercury code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B113B Mercury code diagnosed by a professional: Find a repair shop in your area

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 B113B Mercury Code

1. What are the common symptoms of OBDII code B113B Mercury (Rear Audio Switch Circuit Short to Ground)?

- Common symptoms include malfunctioning rear audio controls, unresponsive buttons, and loss of audio control from the rear of the vehicle.

2. What are the possible causes of the B113B code in a Mercury vehicle?

- The code B113B can be triggered by a short to ground in the rear audio switch circuit, faulty wiring, a defective rear audio switch, or a damaged audio control module.

3. How can I diagnose the B113B OBDII code related to the rear audio switch circuit in my Mercury?

- It is recommended to perform a thorough visual inspection of the wiring and connectors related to the rear audio switch. Using a multimeter to test for continuity and shorts can help pinpoint the issue.

4. What repair tips can help fix the B113B code indicating a short to ground in the rear audio switch circuit?

- Repairing or replacing damaged wiring, fixing loose connections, replacing a faulty rear audio switch, or repairing the audio control module can help resolve the issue.

5. Can I continue to drive my Mercury with the B113B code indicating a rear audio switch circuit short to ground?

- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to avoid potential audio control problems in the rear of the vehicle.

6. How much does it typically cost to repair the B113B OBDII code in a Mercury vehicle?

- The cost of repairing the B113B code can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

7. Is the B113B code related to the rear audio switch circuit a common issue in Mercury vehicles?

- While not extremely common, the B113B code can occur in Mercury vehicles with rear audio controls, especially in older models or those with high mileage.

8. Can I reset the B113B code related to the rear audio switch circuit without fixing the underlying issue?

- You can clear the code using an OBDII scanner, but the issue will likely reappear until the root cause, such as a short to ground, is properly addressed.

9. Are there any preventive measures I can take to avoid the B113B OBDII code in my Mercury?

- Regularly inspecting and maintaining the audio control system, avoiding water damage to the rear audio controls, and ensuring proper wiring connections can help prevent this code.

10. Will fixing the B113B code affecting the rear audio switch circuit improve the overall performance of my Mercury?

- Resolving the B113B code will restore proper functionality to the rear audio controls, enhancing convenience and the overall audio system performance in your Mercury vehicle.