AutoCodes – Lincoln – B102F Lincoln

B102F Lincoln Code - Auxiliary Switch Signal Erratic

Quick Answer

The Body Control Module (BCM) monitors the Auxiliary Switch. Common causes include Faulty Auxiliary Switch, Auxiliary Switch harness is open or shorted, Auxiliary Switch 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: B102F Lincoln indicates Auxiliary Switch Signal Erratic.
Common causes: Common causes include Faulty Auxiliary Switch, Auxiliary Switch harness is open or shorted, Auxiliary Switch 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.

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Code Popularity 1,007

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 11, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B102F Lincoln Description

The Body Control Module (BCM) monitors the Auxiliary Switch. The BCM sets the OBDII code when the Auxiliary Switch is not to factory specifications.

OBDII Code B102F Lincoln - Auxiliary Switch Signal Erratic - AutoCodes.com — B102F Lincoln Code - Auxiliary Switch Signal Erratic

What does this mean?

What are the Possible Causes of the DTC B102F Lincoln?

Faulty Auxiliary Switch
Auxiliary Switch harness is open or shorted
Auxiliary Switch circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B102F 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 B102F 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 B102F Lincoln code?

Need more information on how to fix the B102F Lincoln code? Get Access to Factory Service Manuals

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Get the B102F Lincoln 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 B102F Lincoln Code

1. What are the common symptoms of OBDII code B102F Lincoln (Auxiliary Switch Signal Erratic)?

- Common symptoms include erratic behavior of auxiliary switches, such as lights or other accessories not functioning properly.

2. What are the possible causes of the B102F code in a Lincoln vehicle?

- The code can be triggered by issues with wiring, connectors, or the auxiliary switch itself. It can also be caused by a faulty Body Control Module (BCM).

3. How can I diagnose the B102F code in my Lincoln for the Auxiliary Switch Signal Erratic?

- Start by checking the wiring and connectors associated with the auxiliary switch. Inspect for any signs of damage or loose connections. If the wiring appears intact, consider testing the switch itself.

4. Can I reset the B102F code in my Lincoln without fixing the issue?

- While you can clear the code with an OBDII scanner, it is important to address the underlying problem causing the code to prevent further issues with the auxiliary switch.

5. Is it safe to continue driving my Lincoln with the B102F code present?

- It is not recommended to drive the vehicle with the B102F code active, as it can lead to unreliable operation of the auxiliary switches and potentially affect the vehicle's safety.

6. Are there any common repair tips for fixing the B102F code in a Lincoln?

- If the issue is with the auxiliary switch, consider replacing it with a new one. Ensure all wiring connections are secure and free of damage. If the problem persists, consult a professional mechanic for further diagnosis.

7. Can a DIY enthusiast fix the B102F code in a Lincoln themselves?

- Depending on your skill level and access to tools, you may be able to diagnose and repair the issue causing the B102F code. However, complex electrical issues may require professional assistance.

8. Will fixing the B102F code require specialized tools or equipment?

- Basic tools such as a multimeter and wiring diagram may be necessary to diagnose the B102F code. Repairing the issue may require specific tools for accessing and testing components.

9. How long does it typically take to repair the B102F code in a Lincoln?

- The repair time can vary depending on the underlying cause of the code. Simple fixes like replacing a faulty switch may only take a short time, while more complex wiring issues may require more extensive troubleshooting.

10. Is the B102F code specific to Lincoln vehicles, or can it appear in other car makes?

- The B102F code is specific to Lincoln vehicles and relates to issues with the auxiliary switch signal. Similar codes may exist in other car makes, but they will have different definitions and causes.