AutoCodes – Lincoln – B1A16 Lincoln

B1A16 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 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
B1A16 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
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 644
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 06, 2019
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Code B1A16 Lincoln Description

When the VOICE switch is pressed, it changes a reference voltage signal, and the audio system enters voice recognition mode. The VOICE switch is wired to the Audio Control Module (ACM). The Accessory Protocol Interface Module (APIM) receives the microphone input and also broadcasts it to the ACM. The first voice commands spoken determine which system handles the voice commands.
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 APIM during the on-demand self-test if it does not detect the microphone.
OBDII Code B1A16 Lincoln - Microphone Input Circuit General Electrical Failure - AutoCodes.com
B1A16 Lincoln Code - Microphone Input Circuit General Electrical Failure

What are the Possible Causes of the DTC B1A16 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 B1A16 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 B1A16 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.

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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 B1A16 Lincoln Code

1. What does the OBDII code B1A16 mean on a Lincoln?

The B1A16 code indicates a general electrical failure in the microphone input circuit, which is part of the vehicle's communication or voice recognition system.

2. What are the common symptoms of the B1A16 code?

Symptoms include malfunctioning voice recognition, inoperative hands-free calling, or degraded audio quality during phone calls.

3. What causes the B1A16 code to appear?

Common causes include a faulty microphone, damaged wiring or connectors in the microphone circuit, or an issue with the audio control module.

4. Can the B1A16 code affect other vehicle functions?

Yes, it can affect features like hands-free calling, navigation voice commands, or other systems relying on microphone input.

5. How can I diagnose the B1A16 code on a Lincoln?

Start by checking the microphone and its wiring for damage or loose connections, followed by testing the audio control module for faults.

6. Is the microphone always the problem with a B1A16 code?

No, while a faulty microphone is common, the issue could also stem from wiring issues, connector corrosion, or a failing control module.

7. How do I fix the B1A16 code?

Repairs may involve replacing a damaged microphone, repairing or replacing faulty wiring, or reprogramming or replacing the audio control module.

8. Can I drive my Lincoln with the B1A16 code?

Yes, the code does not affect drivability, but it may limit access to hands-free communication or voice recognition features.

9. How much does it cost to fix the B1A16 code?

The cost varies depending on the issue, ranging from $50 for simple wiring repairs to $300 or more for replacing a microphone or control module.

10. Can I reset the B1A16 code without fixing the issue?

You can clear the code with an OBDII scanner, but it will likely return if the underlying issue is not resolved.

Discuss the causes and fixes for B1A16 Lincoln OBDII Code

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