AutoCodes – Generic – B1301

B1301 Code - Power Door Lock Circuit Open

Quick Answer

The Body Control Module (BCM) monitors the Power Door Lock. Common causes include Faulty Power Door Lock, Power Door Lock harness is open or shorted, Power Door Lock 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: B1301 indicates Power Door Lock Circuit Open.
Common causes: Common causes include Faulty Power Door Lock, Power Door Lock harness is open or shorted, Power Door Lock 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.

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Code Popularity 10,480

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 29, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1301 Description

The Body Control Module (BCM) monitors the Power Door Lock. The BCM sets the OBDII code when the Power Door Lock is not to factory specifications.

OBDII Code B1301 - Power Door Lock Circuit Open - AutoCodes.com — B1301 Code - Power Door Lock Circuit Open

What does this mean?

What are the Possible Causes of the DTC B1301?

Faulty Power Door Lock
Power Door Lock harness is open or shorted
Power Door Lock circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B1301?

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1301 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 B1301 code?

Need more information on how to fix the B1301 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1301 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 B1301 Code

1. What are the common symptoms of OBDII code B1301 (Power Door Lock Circuit Open)?

- The common symptoms include non-functioning power door locks, erratic locking/unlocking behavior, and illuminated warning lights on the dashboard.

2. What are the possible causes of OBDII code B1301?

- The code B1301 can be triggered by a damaged wiring harness, a faulty door lock actuator, a blown fuse, or a malfunctioning power door lock switch.

3. How can I diagnose the Power Door Lock Circuit Open issue?

- To diagnose the issue, you can start by visually inspecting the wiring harness for any visible damage, checking the fuses related to the door locks, and using a multimeter to test the door lock actuator for continuity.

4. Can I repair OBDII code B1301 myself?

- Depending on the cause of the issue, you may be able to repair the Power Door Lock Circuit Open problem yourself by replacing a faulty door lock actuator, repairing damaged wiring, or replacing a blown fuse.

5. Is it safe to continue driving with OBDII code B1301 present?

- While your vehicle may still be operational with this code present, it is not recommended to ignore it, as non-functioning power door locks can compromise safety and security. It is advised to address the issue promptly.

6. How much does it typically cost to repair OBDII code B1301?

- The cost of repairing OBDII code B1301 can vary depending on the underlying cause of the issue, but it may range from $100 to $300 for parts and labor.

7. Can OBDII code B1301 affect other electrical components in the vehicle?

- While the code specifically relates to the power door lock circuit, underlying electrical issues can sometimes affect other components in the vehicle. It's important to address the problem promptly to prevent further complications.

8. Are there any preventive measures I can take to avoid OBDII code B1301 in the future?

- To prevent OBDII code B1301, you can periodically inspect the wiring harness and connections related to the power door locks, avoid overloading the door lock system, and operate the door locks gently.

9. Will resetting the OBDII system clear the B1301 code?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing code B1301 is not addressed, the code is likely to reappear. It's important to diagnose and fix the root cause of the problem.

10. Can extreme weather conditions cause OBDII code B1301 to trigger?

- Extreme weather conditions, such as moisture or temperature fluctuations, can potentially contribute to the triggering of OBDII code B1301 by causing corrosion or damage to the electrical components involved in the power door lock circuit.