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Engine-Codes – Generic – B1337

B1337 Code - Door Ajar Right Rear Circuit Short To Battery

Quick Answer

The B1337 diagnostic trouble code (DTC) indicates that there is a short circuit to the battery in the right rear door ajar circuit of the vehicle. Common causes include Damaged wiring in the right rear door ajar circuit, Faulty door ajar sensor in the right rear door, Corrosion or loose connections in the electrical system. 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
B1337 indicates Door Ajar Right Rear Circuit Short To Battery.
Common causes
Common causes include Damaged wiring in the right rear door ajar circuit, Faulty door ajar sensor in the right rear door, Corrosion or loose connections in the electrical system.
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 08, 2024
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Code B1337 Description

The B1337 diagnostic trouble code (DTC) indicates that there is a short circuit to the battery in the right rear door ajar circuit of the vehicle. This means that there is an electrical issue in the system that monitors whether the right rear door is open or closed. When this code is triggered, it can lead to various issues with the vehicle's systems, including the interior lights not turning off when the door is closed, the door ajar warning light staying on, and potentially draining the vehicle's battery if left unresolved.

OBDII Code B1337 - Door Ajar Right Rear Circuit Short To Battery
B1337 Code - Door Ajar Right Rear Circuit Short To Battery

Common Causes of B1337

  1. Damaged wiring in the right rear door ajar circuit
  2. Faulty door ajar sensor in the right rear door
  3. Corrosion or loose connections in the electrical system
  4. Issues with the body control module (BCM)
  5. Short circuit caused by water intrusion or physical damage to the wiring

Symptoms of B1337

  1. Interior lights staying on when the right rear door is closed
  2. Door ajar warning light staying illuminated
  3. Battery draining quickly
  4. Power door locks not functioning properly
  5. Issues with the vehicle's security system

How to Fix B1337

  1. Begin by diagnosing the specific cause of the short circuit, using a multimeter to test the continuity and resistance in the right rear door ajar circuit.
  2. Inspect the wiring and connections in the right rear door for any signs of damage, corrosion, or loose connections. Repair or replace any damaged components.
  3. Test the door ajar sensor in the right rear door to ensure it is functioning correctly. Replace the sensor if necessary.
  4. Check the body control module (BCM) for any signs of damage or malfunction. If the BCM is the issue, it may need to be reprogrammed or replaced.
  5. Clear the DTC from the vehicle's memory using an OBD-II scanner, and test the system to ensure the issue has been resolved.

Cost to Fix B1337

The cost of repairing a B1337 DTC can vary depending on the specific cause of the issue and the make and model of the vehicle. In general, the cost of parts for this repair can range from $50 to $200, while the labor cost can range from $100 to $300. This estimate does not include diagnostic fees, taxes, or any additional parts or labor that may be required during the repair process. It is recommended to consult with a certified mechanic or dealership to get a more accurate estimate based on the specific circumstances of the vehicle.

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Code B1337 Information for Specific Makes

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 B1337 Code

1. What are common symptoms of OBDII code B1337 - Door Ajar Right Rear Circuit Short To Battery?

The common symptoms include the right rear door being falsely indicated as open, interior lights staying on, and the vehicle's alarm system being triggered intermittently.

2. What are the possible causes of OBDII code B1337?

Possible causes of this code include a short circuit in the right rear door ajar sensor wiring, a faulty door ajar sensor, or a malfunction in the body control module.

3. How can I diagnose OBDII code B1337?

Diagnosing this code typically involves visually inspecting the right rear door ajar sensor wiring for any damage, testing the sensor for proper functionality, and using a scan tool to retrieve codes and data from the body control module.

4. Can I continue driving with OBDII code B1337 present?

It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to avoid potential electrical malfunctions and draining the vehicle's battery.

5. How can I repair OBDII code B1337 - Door Ajar Right Rear Circuit Short To Battery?

Repairing this code may involve repairing or replacing damaged wiring, replacing the faulty door ajar sensor, or reprogramming the body control module if necessary.

6. Will resetting the OBDII code B1337 make it go away permanently?

Resetting the code may temporarily clear the warning light, but if the underlying issue causing the code is not resolved, it is likely to reoccur.

7. Can extreme weather conditions cause OBDII code B1337 to trigger?

Extreme weather conditions, such as moisture or extreme temperatures, can potentially affect the door ajar sensor or wiring, leading to the triggering of this OBDII code.

8. Is OBDII code B1337 specific to a certain vehicle make or model?

While this code is related to a specific issue with the right rear door ajar circuit, it can occur in various vehicle makes and models equipped with OBDII systems.

9. Should I attempt to repair OBDII code B1337 myself or seek professional help?

If you have experience with automotive electrical systems and diagnostics, you may attempt to repair this code yourself. Otherwise, it is advisable to seek help from a professional mechanic.

10. How can I prevent OBDII code B1337 from occurring again in the future?

Regularly inspecting and maintaining the door ajar sensors and wiring, as well as addressing any issues promptly, can help prevent the recurrence of this OBDII code in the future.

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