AutoCodes – Ford – B1C37 Ford

B1C37 Ford Code - Master Lock Switch

Quick Answer

The Body Control Module (BCM) monitors the Master Lock Switch. Common causes include Faulty Master Lock Switch, Master Lock Switch harness is open or shorted, Master Lock 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
B1C37 Ford indicates Master Lock Switch.
Common causes
Common causes include Faulty Master Lock Switch, Master Lock Switch harness is open or shorted, Master Lock 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 6,573
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 26, 2019
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Code B1C37 Ford Description

The Body Control Module (BCM) monitors the Master Lock Switch. The BCM sets the OBDII code when the Master Lock Switch is not to factory specifications.
OBDII Code B1C37 Ford - Master Lock Switch - AutoCodes.com
B1C37 Ford Code - Master Lock Switch

What are the Possible Causes of the DTC B1C37 Ford?

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

How to Fix the DTC B1C37 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1C37 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.

Need more information about the B1C37 Ford code?

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Need Help with the Code?

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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 B1C37 Ford Code

1. What does OBDII code B1C37 for Ford Master Lock Switch indicate?

The B1C37 code in a Ford vehicle refers to a fault with the Master Lock Switch, typically located in the door panel.

2. What are common symptoms of a B1C37 Ford Master Lock Switch code?

Common symptoms include malfunctioning power door locks, the inability to lock or unlock doors using the switch, and potential issues with the central locking system.

3. What are possible causes of the B1C37 Ford code related to the Master Lock Switch?

Causes can range from a faulty Master Lock Switch itself to wiring issues, a blown fuse, or problems with the central locking control module.

4. How can I diagnose the B1C37 Ford Master Lock Switch code?

Diagnosing the issue involves checking the Master Lock Switch for proper operation, inspecting the wiring for damage or loose connections, and using a diagnostic scanner to read the trouble codes.

5. Can I repair the B1C37 Ford code on my own?

Depending on the cause, you may be able to repair the issue yourself by replacing the Master Lock Switch, repairing damaged wiring, or addressing other related components.

6. Should I reset the OBDII code B1C37 after fixing the Ford Master Lock Switch problem?

Yes, it's recommended to clear the trouble codes using an OBDII scanner after resolving the issue with the Master Lock Switch to ensure the system registers the repair.

7. Are there any safety concerns associated with a B1C37 Ford Master Lock Switch code?

A malfunctioning Master Lock Switch can pose safety risks, such as difficulty locking or unlocking doors in emergency situations, so it's important to address the issue promptly.

8. How much does it typically cost to repair a B1C37 Ford Master Lock Switch problem?

The cost of repair can vary depending on the exact cause of the issue, but it may involve the price of a new Master Lock Switch, labor costs if done by a professional, and any other necessary parts.

9. Can a B1C37 Ford code related to the Master Lock Switch cause other electrical issues in the vehicle?

While the B1C37 code specifically relates to the Master Lock Switch, electrical issues in one part of the system can sometimes impact other connected components, so it's important to address the problem promptly.

10. How can I prevent future occurrences of the B1C37 Ford Master Lock Switch trouble code?

Regularly checking and maintaining the Master Lock Switch, along with the central locking system, can help prevent issues that may trigger the B1C37 trouble code in the future.

Discuss the causes and fixes for B1C37 Ford OBDII Code

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