Engine-CodesGMC – B3137 GMC

B3137 GMC Code - All Door Lock Circuit Low

Quick Answer

The B3137 GMC code indicates a problem with the all door lock circuit being low, meaning that there is a potential issue with the electrical system responsible for controlling the door locks in the vehicle. Common causes include Faulty body control module (BCM) that is not sending the correct signals to the door lock circuit, Wiring or electrical connection issues in the door lock circuit, Defective door lock switches or key fob. 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
B3137 GMC indicates All Door Lock Circuit Low.
Common causes
Common causes include Faulty body control module (BCM) that is not sending the correct signals to the door lock circuit, Wiring or electrical connection issues in the door lock circuit, Defective door lock switches or key fob.
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.
Table of contents Created and updated by William Orellana on Sep 14, 2024
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Code B3137 GMC Description

The B3137 GMC code indicates a problem with the all door lock circuit being low, meaning that there is a potential issue with the electrical system responsible for controlling the door locks in the vehicle. This code typically affects the power door locks, which are a convenient feature that allows all doors to be locked or unlocked simultaneously with the push of a button. When this circuit is low, it can result in the door locks not functioning properly, leading to inconvenience and potential safety concerns.

OBDII Code B3137 GMC - All Door Lock Circuit Low
B3137 GMC Code - All Door Lock Circuit Low

Common Causes of B3137 GMC

  1. Faulty body control module (BCM) that is not sending the correct signals to the door lock circuit.
  2. Wiring or electrical connection issues in the door lock circuit.
  3. Defective door lock switches or key fob.
  4. Corrosion or damage to the door lock actuators.
  5. Power supply issues affecting the door lock circuit.

Symptoms of B3137 GMC

  1. Doors not locking or unlocking when using the key fob or door lock switches.
  2. Erratic behavior of the door locks, such as locking and unlocking on their own.
  3. Audible clicking noise coming from the door locks when attempting to lock or unlock.
  4. Warning light on the dashboard indicating a door lock system malfunction.

How to Fix B3137 GMC

  1. Diagnose the issue by using a scan tool to retrieve the B3137 code and inspecting the door lock circuit for any visible damage.
  2. Test the door lock switches and key fob to ensure they are functioning properly.
  3. Check the wiring and electrical connections in the door lock circuit for any signs of damage or corrosion.
  4. Replace any faulty components, such as the body control module, door lock actuators, or wiring harness, as needed.
  5. Clear the B3137 code from the vehicle's memory and test the door locks to verify that they are operating correctly.

Cost to Fix B3137 GMC

The cost of repairing the B3137 GMC code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the parts required for this repair, such as a new body control module or door lock actuators, can range from $100 to $500 or more. Labor costs for diagnosing and repairing the issue can add an additional $100 to $300 or more, depending on the shop's hourly rates and the complexity of the repair.

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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 B3137 GMC Code

1. What are the common symptoms of OBDII code B3137 GMC (All Door Lock Circuit Low)?

- Common symptoms include difficulty locking or unlocking doors, intermittent door lock operation, and inoperative power door locks.

2. What are possible causes of OBDII code B3137 GMC (All Door Lock Circuit Low)?

- Possible causes include a faulty door lock actuator, damaged wiring or connectors in the door lock circuit, and a malfunctioning door lock switch.

3. How can I diagnose OBDII code B3137 GMC (All Door Lock Circuit Low)?

- To diagnose this code, you may need to inspect the door lock actuators, check the wiring and connectors for damage, and test the door lock switch for proper operation using a multimeter.

4. Can a DIY enthusiast repair OBDII code B3137 GMC (All Door Lock Circuit Low) at home?

- Depending on the root cause, a DIY enthusiast with automotive repair experience may be able to repair this code by replacing a faulty door lock actuator, repairing damaged wiring, or fixing a malfunctioning door lock switch.

5. Are there any safety precautions to consider when working on OBDII code B3137 GMC (All Door Lock Circuit Low)?

- Prior to starting any repairs, ensure the vehicle is turned off and the battery is disconnected to prevent electrical hazards. Exercise caution when handling electrical components and wiring to avoid injury or damage.

6. What are the typical repair costs associated with resolving OBDII code B3137 GMC (All Door Lock Circuit Low)?

- The repair costs for this code can vary depending on the extent of the issue and the specific components that need to be replaced. It's recommended to obtain quotes from reputable automotive service centers for an accurate estimate.

7. Can OBDII code B3137 GMC (All Door Lock Circuit Low) cause any other problems with the vehicle?

- While this code primarily relates to issues with the door lock circuit, unresolved problems can potentially drain the vehicle's battery, affect the security of the vehicle, or lead to inconvenience due to malfunctioning door locks.

8. Is it necessary to reset the OBDII system after repairing OBDII code B3137 GMC (All Door Lock Circuit Low)?

- After resolving the underlying issue causing this code, it's recommended to clear the OBDII system using a scan tool to reset the code and ensure proper functioning of the door lock circuit.

9. Can extreme weather conditions impact OBDII code B3137 GMC (All Door Lock Circuit Low)?

- Yes, extreme weather conditions such as extreme cold or heat can potentially exacerbate existing issues with the door lock circuit, leading to intermittent operation or complete failure of the door locks.

10. How can regular maintenance help prevent OBDII code B3137 GMC (All Door Lock Circuit Low) from occurring?

- Regular maintenance, including inspecting and cleaning the door lock components, checking the wiring for damage, and addressing any door lock issues promptly, can help prevent the occurrence of this code and ensure proper operation of the door locks.

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