AutoCodes – Ford – B2913 Ford

B2913 Ford Code - Audio Subwoofer Not Connected

Quick Answer

The subwoofer amplifier receives voltage and ground. Common causes include Faulty Audio Subwoofer, Audio Subwoofer harness is open or shorted, Audio Subwoofer circuit poor electrical connection. 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
B2913 Ford indicates Audio Subwoofer Not Connected.
Common causes
Common causes include Faulty Audio Subwoofer, Audio Subwoofer harness is open or shorted, Audio Subwoofer circuit poor electrical connection.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 588
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Feb 19, 2020
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Code B2913 Ford Description

The subwoofer amplifier receives voltage and ground. To enable the subwoofer amplifier, the Audio Control Module (ACM) sends voltage. The circuit acts as both an output (to enable the amplifier) and an input (to detect an amplifier overload condition). A variable resistor in the subwoofer amplifier modifies the voltage signal from the ACM. In the event of an overload, the ACM clips the audio output signal to the amplifier (heard as distortion), in order to prevent damage to the amplifier and speaker. An open in circuit will cause the subwoofer to produce no sound, because the enable signal will not reach the subwoofer amplifier. A short to ground or short to voltage can cause severe distortion to be heard in the subwoofer. The Diagnostic Trouble Code (DTC) sets when the ACM does not detect the subwoofer through the circuit.
OBDII Code B2913 Ford - Audio Subwoofer Not Connected - AutoCodes.com
B2913 Ford Code - Audio Subwoofer Not Connected

What are the Possible Causes of the DTC B2913 Ford?

  • Faulty Audio Subwoofer
  • Audio Subwoofer harness is open or shorted
  • Audio Subwoofer circuit poor electrical connection
  • Faulty Audio Control Module (ACM)

How to Fix the DTC B2913 Ford?

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 B2913 Ford 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 B2913 Ford code?

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Need Help with the Code?

Get the B2913 Ford 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 B2913 Ford Code

1. What are the common symptoms of OBDII code B2913 in a Ford related to the audio subwoofer not being connected?

- The most common symptom is the absence of sound or very poor sound quality coming from the subwoofer in the audio system.

2. What are the possible causes of OBDII code B2913 indicating the audio subwoofer is not connected in a Ford?

- This code often indicates a physical disconnection of the subwoofer from the audio system, a faulty connection, or a problem with the subwoofer itself.

3. How can I diagnose the issue causing OBDII code B2913 in a Ford related to the audio subwoofer not being connected?

- A visual inspection of the subwoofer connection and wiring is a good starting point. Checking for loose or disconnected wires and ensuring the subwoofer is properly connected can help diagnose the issue.

4. Can OBDII code B2913 be reset in a Ford once the audio subwoofer connection issue is resolved?

- Yes, after fixing the connection issue, the code can be cleared using an OBDII scanner or by disconnecting the car battery for a few minutes.

5. What are some repair tips for addressing OBDII code B2913 in a Ford related to the audio subwoofer not being connected?

- Ensure the subwoofer is properly connected to the audio system, check for any damaged wires, and test the subwoofer functionality after any repairs.

6. Is it possible to fix OBDII code B2913 related to the audio subwoofer on a Ford without professional help?

- Yes, if the issue is a simple connection problem, it can often be fixed without professional assistance by following a systematic approach to checking the wiring and connections.

7. Can a malfunctioning audio subwoofer cause any other issues in a Ford besides triggering OBDII code B2913?

- A malfunctioning subwoofer may result in poor audio quality, lack of bass, or distorted sound, affecting the overall audio experience in the vehicle.

8. Are there any safety concerns associated with OBDII code B2913 indicating the audio subwoofer is not connected in a Ford?

- This code is related to the audio system and does not pose any immediate safety risks to the vehicle or its occupants. It primarily affects the sound quality.

9. What is the typical cost to repair OBDII code B2913 in a Ford due to the audio subwoofer connection issue?

- The cost of repairing this code can vary depending on the underlying problem, but in many cases, it may involve simple fixes like reconnecting wires, making it a low-cost repair.

10. Should I be concerned if OBDII code B2913 related to the audio subwoofer not being connected appears intermittently in a Ford?

- Intermittent appearance of this code could indicate a loose connection that needs attention, as it may worsen over time and affect the audio system's performance.

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