AutoCodes – Mercury – B12B6 Mercury

B12B6 Mercury Code - Front Lock Motor Common Circuit Circuit Short

Quick Answer

The Body Control Module (BCM) monitors the Front Lock Motor. Common causes include Faulty Front Lock Motor, Front Lock Motor harness is open or shorted, Front Lock Motor circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means
B12B6 Mercury indicates Front Lock Motor Common Circuit Circuit Short.
Common causes
Common causes include Faulty Front Lock Motor, Front Lock Motor harness is open or shorted, Front Lock Motor circuit poor electrical connection.
Severity
Moderate - service should be scheduled soon.
Can I drive?
The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 754
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Nov 29, 2024
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code B12B6 Mercury Description

The Body Control Module (BCM) monitors the Front Lock Motor. The BCM sets the OBDII code when the Front Lock Motor is not to factory specifications.
OBDII Code B12B6 Mercury - Front Lock Motor Common Circuit Circuit Short - AutoCodes.com
B12B6 Mercury Code - Front Lock Motor Common Circuit Circuit Short

What are the Possible Causes of the DTC B12B6 Mercury?

  • Faulty Front Lock Motor
  • Front Lock Motor harness is open or shorted
  • Front Lock Motor circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How to Fix the DTC B12B6 Mercury?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B12B6 Mercury 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 B12B6 Mercury code?

Need more information on how to fix the B12B6 Mercury code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B12B6 Mercury 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 B12B6 Mercury Code

1. What are the common symptoms of OBDII code B12B6 in a Mercury related to the Front Lock Motor Common Circuit Short?

- Common symptoms include issues with the front door lock functionality, such as difficulty locking or unlocking the door.

2. What are the potential causes of OBDII code B12B6 in a Mercury indicating a Front Lock Motor Common Circuit Short?

- The code may be triggered by a short circuit in the wiring harness, a faulty front lock motor, or a malfunctioning control module.

3. How can I diagnose the Front Lock Motor Common Circuit Short issue in my Mercury when OBDII code B12B6 is present?

- You can start by inspecting the wiring harness for any visible damage, testing the front lock motor for proper function, and using a diagnostic tool to check the control module.

4. Is it safe to continue driving my Mercury with OBDII code B12B6 indicating a Front Lock Motor Common Circuit Short?

- It is not recommended to drive the vehicle with this issue, as it can affect the security and safety of the vehicle. Prompt repair is advised.

5. Can I reset the OBDII code B12B6 related to the Front Lock Motor Common Circuit Short in my Mercury without fixing the underlying problem?

- Resetting the code without addressing the root cause will likely result in the code reappearing. It is important to fix the issue causing the code to prevent further problems.

6. Are there any DIY repair tips for addressing OBDII code B12B6 in a Mercury linked to the Front Lock Motor Common Circuit Short?

- DIY repair may involve checking and repairing any damaged wiring, replacing the front lock motor if necessary, or reprogramming the control module as needed.

7. How much can I expect to pay for professional repair of OBDII code B12B6 in my Mercury due to the Front Lock Motor Common Circuit Short?

- The cost of professional repair can vary depending on the extent of the issue and the rates of the repair shop. It is advisable to obtain quotes from different places.

8. Will fixing OBDII code B12B6 related to the Front Lock Motor Common Circuit Short improve the overall performance of my Mercury?

- Fixing this code will primarily restore the proper functioning of the front door lock system in your Mercury, ensuring convenience and security.

9. Can extreme weather conditions or environmental factors contribute to triggering OBDII code B12B6 in a Mercury for the Front Lock Motor Common Circuit Short?

- While not common, extreme weather conditions or exposure to moisture can potentially lead to electrical issues that may trigger this code.

10. Is it necessary to visit a dealership for repair of OBDII code B12B6 associated with the Front Lock Motor Common Circuit Short in my Mercury, or can any mechanic address the problem?

- Any qualified mechanic familiar with electrical systems in vehicles should be able to diagnose and repair the issue causing OBDII code B12B6 in your Mercury.

Discuss the causes and fixes for B12B6 Mercury OBDII Code

Code B12B6 Mercury comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play