B1D79 Ford Code - Microphone Input Circuit General Electrical Failure
Quick Answer
When the VOICE switch is pressed, it changes a reference voltage signal, and the audio system enters voice recognition mode. Common causes include Faulty Microphone, Microphone harness is open or shorted, Microphone 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
- B1D79 Ford indicates Microphone Input Circuit General Electrical Failure.
- Common causes
- Common causes include Faulty Microphone, Microphone harness is open or shorted, Microphone 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.
Code B1D79 Ford Description
The microphone test is available through the ACM self-diagnostic mode (navigation only). Running this test causes the ACM to produce a test tone. If the system is operating correctly, the microphone detects the tone and produces a signal to the ACM indicating the tone was heard. The OBDII set by the ACM during the microphone test when it does not receive an adequate signal from the microphone when the test tone is sounded.
What are the Possible Causes of the DTC B1D79 Ford?
- Faulty Microphone
- Microphone harness is open or shorted
- Microphone circuit poor electrical connection
- Faulty Audio Control Module (ACM) (if equipped)
- Faulty Accessory Protocol Interface Module (APIM) (if equipped)
How to Fix the DTC B1D79 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 B1D79 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.
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Frequently Asked Questions about B1D79 Ford Code
1. What are common symptoms of OBDII code B1D79 for Ford related to Microphone Input Circuit General Electrical Failure?
- Common symptoms include malfunctioning hands-free calling features, poor voice recognition, and loss of communication through the microphone.
2. What are the potential causes of OBDII code B1D79 for Ford indicating Microphone Input Circuit General Electrical Failure?
- Causes may include a faulty microphone, damaged wiring or connectors in the microphone circuit, or issues with the audio control module.
3. How can I diagnose the Microphone Input Circuit General Electrical Failure related to OBDII code B1D79 in my Ford vehicle?
- To diagnose this issue, you can start by inspecting the microphone and its connections, checking for any visible damage or loose connections. Using a multimeter to test the circuit for continuity can also help pinpoint the problem.
4. Can a DIY enthusiast repair OBDII code B1D79 Microphone Input Circuit General Electrical Failure in a Ford vehicle?
- Depending on the exact cause, some DIY enthusiasts may be able to repair this issue by replacing the faulty microphone, repairing damaged wiring, or reseating connectors. However, complex electrical diagnosis and repair may require professional assistance.
5. Is it safe to continue driving with OBDII code B1D79 Microphone Input Circuit General Electrical Failure present in a Ford vehicle?
- While the vehicle may still be operable with this code present, it is recommended to address the issue promptly to ensure proper functioning of hands-free features and communication systems.
6. How much does it typically cost to repair OBDII code B1D79 indicating Microphone Input Circuit General Electrical Failure in a Ford vehicle?
- Repair costs can vary depending on the exact cause of the issue and whether professional assistance is required. Costs may range from a few hundred dollars for simple repairs to more for complex diagnostic and repair work.
7. Can a software update fix OBDII code B1D79 related to Microphone Input Circuit General Electrical Failure in a Ford vehicle?
- In some cases, a software update provided by Ford may address issues related to this code, especially if it is related to compatibility or communication problems with the audio control module.
8. How long does it typically take to repair OBDII code B1D79 Microphone Input Circuit General Electrical Failure in a Ford vehicle?
- The repair time can vary depending on the exact cause of the issue and the complexity of the repair. Simple fixes like replacing a microphone may take an hour or two, while more complex electrical diagnostics can take longer.
9. Are there any preventive maintenance tips to avoid encountering OBDII code B1D79 Microphone Input Circuit General Electrical Failure in a Ford vehicle?
- Regularly inspecting the microphone and its connections for any signs of wear or damage, as well as addressing any audio system issues promptly, can help prevent this code from appearing in your Ford vehicle.
10. Will resetting the OBDII system clear the B1D79 code related to Microphone Input Circuit General Electrical Failure in a Ford vehicle?
- While resetting the OBDII system may temporarily clear the code, it is important to diagnose and repair the underlying issue causing the code to prevent it from reoccurring.
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