B1D79 Lincoln 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 Lincoln 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 Lincoln 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 Lincoln?
- 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 Lincoln?
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 Lincoln 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 B1D79 Lincoln code?
Need more information on how to fix the B1D79 Lincoln code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B1D79 Lincoln code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about B1D79 Lincoln Code
1. What are the common symptoms of OBDII code B1D79 in a Lincoln related to Microphone Input Circuit General Electrical Failure?
- Common symptoms include a malfunctioning microphone, loss of voice command functionality, and issues with hands-free calling features.
2. What are some potential causes of the B1D79 code in a Lincoln?
- Possible causes include a faulty microphone, damaged wiring or connectors in the microphone circuit, or a problem with the audio control module.
3. How can I diagnose the Microphone Input Circuit General Electrical Failure in my Lincoln?
- Use a diagnostic scanner to retrieve the specific trouble codes, inspect the microphone and its connections for any visible damage, and test the microphone's functionality.
4. Can I repair the B1D79 code issue in my Lincoln by myself?
- Depending on your level of expertise, you may be able to replace a faulty microphone or repair damaged wiring. However, complex issues with the audio control module may require professional assistance.
5. Are there any simple troubleshooting steps I can take for the Microphone Input Circuit General Electrical Failure in my Lincoln?
- Check the microphone connections for any loose or damaged wires, ensure the microphone is securely mounted, and reset the vehicle's audio system to see if the issue resolves.
6. Will the B1D79 code affect the overall performance of my Lincoln?
- While the code itself may not impact the drivability of the vehicle, it can result in the loss of important voice control features and hands-free communication functions.
7. How much does it typically cost to repair the Microphone Input Circuit General Electrical Failure in a Lincoln?
- The cost of repairs can vary depending on the exact cause of the issue and whether professional help is required. Simple fixes like replacing a microphone may cost less than addressing complex wiring problems.
8. Can ignoring the B1D79 code cause further damage to my Lincoln?
- Ignoring the code may lead to continued issues with voice command features and hands-free calling, but it is unlikely to cause significant damage to the vehicle itself.
9. Is the B1D79 code specific to Lincoln vehicles, or can it occur in other car makes and models?
- While the specific code may vary between manufacturers, similar issues related to microphone input circuit failures can occur in various vehicle brands, not just Lincolns.
10. How can I prevent the recurrence of the B1D79 code in my Lincoln after repair?
- Properly maintaining the microphone system, ensuring all connections are secure, and addressing any underlying electrical issues promptly can help prevent the code from reappearing.
Discuss the causes and fixes for B1D79 Lincoln OBDII Code
Code B1D79 Lincoln comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
