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Engine-Codes – Ford – B1372 Ford

B1372 Ford Code - Left Rear Door Handle Unlock Circuit No Sub Type Information

Quick Answer

The B1372 code for Ford vehicles refers to an issue with the left rear door handle unlock circuit. Common causes include Faulty door lock actuator, Wiring issues, such as a short circuit or open circuit, Corrosion or damage to the electrical connections. 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
B1372 Ford indicates Left Rear Door Handle Unlock Circuit No Sub Type Information.
Common causes
Common causes include Faulty door lock actuator, Wiring issues, such as a short circuit or open circuit, Corrosion or damage to the electrical connections.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code B1372 Ford Description

The B1372 code for Ford vehicles refers to an issue with the left rear door handle unlock circuit. This means that there is a problem with the electrical circuit that controls the unlocking mechanism for the left rear door handle. When this code is triggered, it can result in the door not being able to unlock properly, which can be a significant inconvenience for the vehicle's occupants. This issue can also compromise the security of the vehicle, as the door may not be able to be unlocked in case of an emergency.

OBDII Code B1372 Ford - Left Rear Door Handle Unlock Circuit No Sub Type Information
B1372 Ford Code - Left Rear Door Handle Unlock Circuit No Sub Type Information

Common Causes of B1372 Ford

  1. Faulty door lock actuator.
  2. Wiring issues, such as a short circuit or open circuit.
  3. Corrosion or damage to the electrical connections.
  4. Defective central locking system module.
  5. Physical damage to the door handle or locking mechanism.

Symptoms of B1372 Ford

  1. Inability to unlock the left rear door using the door handle.
  2. Malfunctioning central locking system, affecting other doors in the vehicle.
  3. Unusual sounds coming from the left rear door when attempting to unlock it.
  4. The door handle feels loose or unresponsive when trying to open the door.

How to Fix B1372 Ford

  1. Begin by diagnosing the exact cause of the issue using a diagnostic scanner to retrieve the B1372 code and identify the specific problem area.
  2. Inspect the door lock actuator and wiring connections for any visible signs of damage or wear. Replace the door lock actuator if it is found to be faulty.
  3. Check the wiring harness for any shorts or breaks. Repair or replace any damaged wiring as needed.
  4. Test the central locking system to ensure that the left rear door handle unlock circuit is functioning correctly after making the necessary repairs.
  5. Clear the diagnostic trouble codes from the vehicle's computer system and test the left rear door handle to confirm that the issue has been resolved.

Cost to Fix B1372 Ford

The typical repair costs for addressing a B1372 code on a Ford vehicle can vary depending on the specific cause of the issue. In general, the cost of parts such as a new door lock actuator and wiring harness can range from $100 to $300, while labor costs can add an additional $100 to $200 to the total bill. Overall, the total repair cost for this issue is typically in the range of $200 to $500, but it is essential to consult with a professional mechanic for an accurate estimate based on the specific circumstances of the vehicle. Keep in mind that diagnosis time and labor rates can vary significantly, so it is advisable to inquire about these details when seeking repairs at an auto repair shop.

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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 B1372 Ford Code

1. What are the common symptoms of OBDII code B1372 Ford?

- Common symptoms include the left rear door handle not unlocking properly, difficulty opening the door from the outside, or intermittent issues with the door lock.

2. What could cause the OBDII code B1372 Ford to trigger?

- The code may be triggered due to a faulty left rear door handle, damaged wiring in the unlock circuit, a malfunctioning door lock actuator, or a poor connection in the circuit.

3. How can I diagnose the issue related to OBDII code B1372 Ford?

- You can start by inspecting the left rear door handle for any physical damage, checking the wiring harness for signs of wear or breakage, testing the door lock actuator, and verifying the connections in the circuit.

4. Is it possible to repair the Left Rear Door Handle Unlock Circuit No Sub Type Information issue at home?

- Depending on your mechanical skills, you may be able to repair the problem at home by replacing the faulty door handle, repairing the wiring, or addressing any issues with the door lock actuator.

5. Can I reset the OBDII code B1372 Ford without fixing the underlying problem?

- Resetting the code without fixing the root cause may temporarily clear the error code, but the issue will likely persist and trigger the code again until the underlying problem is resolved.

6. Are there any safety concerns associated with OBDII code B1372 Ford?

- Yes, a malfunctioning left rear door handle or lock can pose safety risks in emergency situations where quick access to the vehicle's interior is necessary.

7. How much does it typically cost to repair OBDII code B1372 Ford at a professional automotive service shop?

- The cost of repair can vary depending on the exact cause of the issue, but it may involve parts and labor expenses ranging from $100 to $300 or more.

8. Can a scan tool be used to diagnose OBDII code B1372 Ford?

- Yes, a scan tool capable of reading OBDII codes can help pinpoint the specific issue related to the left rear door handle unlock circuit, making diagnosis easier and more accurate.

9. Will ignoring OBDII code B1372 Ford lead to further vehicle damage?

- Ignoring the code may lead to inconvenience due to difficulty in accessing the left rear door, but it is unlikely to cause significant damage to the vehicle itself.

10. How can I prevent OBDII code B1372 Ford from recurring in the future?

- Regularly inspecting and maintaining the door handles, locks, and wiring in your vehicle can help prevent issues like B1372 Ford from occurring in the future.

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