Engine-CodesLincoln – B113B Lincoln

B113B Lincoln Code - Rear Audio Switch Circuit Short to Ground

Quick Answer

The B113B diagnostic trouble code for Lincoln vehicles indicates a rear audio switch circuit short to ground. Common causes include Short circuit in the rear audio switch circuit wiring, Faulty rear audio switch, Water or moisture damage to the rear audio switch circuit. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
B113B Lincoln indicates Rear Audio Switch Circuit Short to Ground.
Common causes
Common causes include Short circuit in the rear audio switch circuit wiring, Faulty rear audio switch, Water or moisture damage to the rear audio switch circuit.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code B113B Lincoln Description

The B113B diagnostic trouble code for Lincoln vehicles indicates a rear audio switch circuit short to ground. This means that there is an electrical issue in the circuit that controls the rear audio switch, causing it to short out and connect to the vehicle's ground. The rear audio switch is responsible for controlling the audio output to the rear speakers or headphones in the vehicle. When this circuit is shorted to ground, it can lead to a loss of audio output to the rear speakers, affecting the overall sound system in the vehicle.

OBDII Code B113B Lincoln - Rear Audio Switch Circuit Short to Ground
B113B Lincoln Code - Rear Audio Switch Circuit Short to Ground

Common Causes of B113B Lincoln

  1. Short circuit in the rear audio switch circuit wiring
  2. Faulty rear audio switch
  3. Water or moisture damage to the rear audio switch circuit
  4. Loose or corroded electrical connections in the circuit
  5. Electrical issues in the vehicle's audio system

Symptoms of B113B Lincoln

  1. Loss of audio output to the rear speakers
  2. Distorted sound coming from the rear speakers
  3. Audio system cutting in and out intermittently
  4. Rear audio switch not responding to commands

How to Fix B113B Lincoln

  1. Begin by inspecting the rear audio switch circuit wiring for any signs of damage or short circuits. Repair or replace any damaged wiring as needed.
  2. Test the rear audio switch for proper functionality and replace it if it is found to be faulty.
  3. Check for water or moisture damage in the rear audio switch circuit and address any issues found.
  4. Inspect and clean any electrical connections in the circuit, ensuring they are tight and free of corrosion.
  5. Clear the diagnostic trouble code from the vehicle's system using a diagnostic scanner to reset the audio system.

Cost to Fix B113B Lincoln

The typical repair costs for addressing a B113B code in a Lincoln vehicle can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for this repair can range from $50 to $200, while labor costs can range from $100 to $300. Overall, the total repair cost for this issue may fall between $150 and $500, but it is important to note that these are rough estimates and actual costs may vary based on factors such as location, vehicle make and model, and labor rates at auto repair shops. It is recommended to obtain quotes from local auto repair shops to get a more accurate estimate for this repair.

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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 Lincoln Code

1. What does the OBDII code B113B mean on a Lincoln?

The code B113B indicates a "Rear Audio Switch Circuit Short to Ground," meaning there's an electrical issue in the rear audio switch circuit.

2. What are the symptoms of code B113B on a Lincoln?

Symptoms may include non-functional rear audio controls, intermittent audio issues, or a blown fuse related to the audio system.

3. What causes the B113B code to appear?

This code is typically triggered by damaged wiring, a faulty rear audio control module, or a short circuit in the audio switch circuit.

4. Can I still drive my Lincoln with code B113B active?

Yes, your vehicle will remain drivable, but the rear audio controls may not work properly, which could inconvenience passengers.

5. How can I diagnose code B113B on a Lincoln?

Check the wiring and connectors for damage, inspect the rear audio control module, and test for continuity to locate any short circuits.

6. How do I fix the B113B code on my Lincoln?

Repairs may involve fixing or replacing damaged wiring, replacing the rear audio control module, or clearing any debris causing a short circuit.

7. Is the B113B code a common issue on Lincolns?

While not extremely common, it can occur in vehicles with rear audio control features, especially if there’s wear or damage to the wiring.

8. Will clearing the B113B code fix the problem?

Clearing the code will reset the check, but if the underlying issue isn’t fixed, the code will return.

9. What tools are needed to troubleshoot the B113B code?

You’ll need a multimeter to test wiring continuity and an OBDII scanner to read and clear the code.

10. Should I take my car to a mechanic for a B113B code?

If you’re not comfortable diagnosing electrical issues or the problem persists after basic checks, consult a professional mechanic.

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