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Engine-Codes – Generic – B001B:02

B001B:02 Code - Passenger Seat Belt Anchor Pretensioner Deployment Loop Short to Ground

Quick Answer

The B001B:02 diagnostic trouble code indicates a problem with the passenger seat belt anchor pretensioner deployment loop shorting to ground. Common causes include Short circuit in the wiring harness, Faulty seat belt pretensioner mechanism, Corrosion or damage to connectors. 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
B001B:02 indicates Passenger Seat Belt Anchor Pretensioner Deployment Loop Short to Ground.
Common causes
Common causes include Short circuit in the wiring harness, Faulty seat belt pretensioner mechanism, Corrosion or damage to connectors.
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 11, 2024
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Code B001B:02 Description

The B001B:02 diagnostic trouble code indicates a problem with the passenger seat belt anchor pretensioner deployment loop shorting to ground. The pretensioner deployment loop is a crucial safety feature that tightens the seat belt in the event of a collision, reducing the forward movement of the occupant and minimizing the risk of injury. When this loop short circuits to ground, it can potentially disable the pretensioner system, compromising the effectiveness of the seat belt in restraining the passenger during a crash.

OBDII Code B001B:02 - Passenger Seat Belt Anchor Pretensioner Deployment Loop Short to Ground
B001B:02 Code - Passenger Seat Belt Anchor Pretensioner Deployment Loop Short to Ground

Common Causes of B001B:02

  1. Short circuit in the wiring harness
  2. Faulty seat belt pretensioner mechanism
  3. Corrosion or damage to connectors
  4. Malfunctioning control module
  5. Faulty seat belt buckle

Symptoms of B001B:02

  1. Airbag warning light illuminated on the dashboard
  2. Inoperative seat belt pretensioner
  3. Audible warning chime when the vehicle is started
  4. Intermittent or complete loss of power to the seat belt pretensioner

How to Fix B001B:02

  1. Begin by inspecting the wiring harness and connectors for any signs of damage or corrosion. Repair or replace any damaged components.
  2. Test the seat belt pretensioner mechanism to ensure it is functioning correctly. Replace the pretensioner if necessary.
  3. Check the control module for any faults or errors. Reset or replace the control module as needed.
  4. Test the seat belt buckle for proper operation. Replace the buckle if it is found to be faulty.
  5. Clear the diagnostic trouble codes from the vehicle's system and perform a test drive to verify that the issue has been resolved.

Cost to Fix B001B:02

The cost of repairing a B001B:02 code can vary depending on the specific cause of the issue and the labor rates in your area. In general, the repair for this problem may range from $200 to $500, including parts and labor. However, it's important to note that diagnostic time and labor rates can vary significantly, so it's recommended to contact local auto repair shops for a more accurate estimate based on your vehicle make and model.

What does this mean?

Tech Notes for B001B:02

B001B:01 Passenger Seat Belt Anchor Pretensioner Deployment Loop Short to Battery

B001B:02 Passenger Seat Belt Anchor Pretensioner Deployment Loop Short to Ground

B001B:04 Passenger Seat Belt Anchor Pretensioner Deployment Loop Open

B001B:0D Passenger Seat Belt Anchor Pretensioner Deployment Loop High Resistance

B001B:0E Passenger Seat Belt Anchor Pretensioner Deployment Loop Low Resistance

Need more information about the B001B:02 code?

Need more information on how to fix the B001B:02 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B001B:02 code diagnosed by a professional: Find a repair shop in your area

Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service

  • Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
  • Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
  • Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
  • Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.

Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.

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 B001B:02 Code

1. What are the common symptoms of OBDII code B001B:02?

The common symptoms of this code include the airbag warning light being illuminated on the dashboard and potential issues with the passenger seat belt pretensioner system.

2. What causes the OBDII code B001B:02 to trigger?

This code is triggered when there is a short to ground in the passenger seat belt anchor pretensioner deployment loop, indicating a potential electrical issue in the system.

3. How serious is the OBDII code B001B:02?

This code should be taken seriously as it indicates a fault in the passenger seat belt pretensioner system, which is a crucial safety feature in the vehicle.

4. Can I continue driving with OBDII code B001B:02 active?

It is not recommended to continue driving with this code active as it may compromise the effectiveness of the passenger seat belt pretensioner system in the event of a collision.

5. How can I diagnose the OBDII code B001B:02?

Diagnosing this code typically involves using a professional OBDII scanner to retrieve the specific fault codes and conducting a thorough inspection of the passenger seat belt anchor pretensioner system.

6. What are the repair options for OBDII code B001B:02?

Repair options may include checking and repairing any damaged wiring or connectors in the passenger seat belt anchor pretensioner system, or replacing the affected components if necessary.

7. Can I reset the OBDII code B001B:02 without fixing the issue?

While you can clear the code with an OBDII scanner, it is not recommended to do so without addressing the underlying issue, as it may pose a safety risk.

8. How much does it cost to repair OBDII code B001B:02?

The cost of repairing this code can vary depending on the extent of the damage and the specific components that need to be replaced, so it is best to consult a professional for an accurate estimate.

9. Are there any DIY tips for fixing OBDII code B001B:02?

Unless you have experience with automotive electrical systems, it is recommended to seek professional help for diagnosing and repairing this code to ensure the safety of the passenger restraint system.

10. How can I prevent OBDII code B001B:02 from recurring?

Regular maintenance and inspection of the vehicle's safety systems, including the passenger seat belt pretensioner system, can help prevent issues that may trigger this code in the future.

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