AutoCodes – Generic – B001B:02

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

Quick Answer

The seat belt pretensioner (driver and passenger) consists of a housing, seat belt retractor (located in the B-pillar), seat belt anchor (located in the seat), seat belt webbing, an initiator, and a canister of gas-generating materials. Common causes include Faulty Passenger Seat Belt Anchor Pretensioner, Passenger Seat Belt Anchor Pretensioner harness is open or shorted, Passenger Seat Belt Anchor Pretensioner 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: B001B:02 indicates Passenger Seat Belt Anchor Pretensioner Deployment Loop Short to Ground.
Common causes: Common causes include Faulty Passenger Seat Belt Anchor Pretensioner, Passenger Seat Belt Anchor Pretensioner harness is open or shorted, Passenger Seat Belt Anchor Pretensioner 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 337

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Oct 05, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B001B:02 Description

The seat belt pretensioner (driver and passenger) consists of a housing, seat belt retractor (located in the B-pillar), seat belt anchor (located in the seat), seat belt webbing, an initiator, and a canister of gas-generating materials. The initiator is part of the seat belt pretensioner deployment loop. When the vehicle is involved in a collision of sufficient force, the Inflatable Restraint Sensing and Diagnostic Module (SDM) causes current to flow through the seat belt deployment loops to the initiator. Current passing through the initiator ignites the material in the canister producing a rapid generation of gas. The gas produced from this reaction deploys the seat belt pretensioners which removes all of the slack in the seat belts. Depending on the severity of the collision, the seat belt pretensioners may deploy without the frontal air bags deploying, or they will deploy immediately before the frontal air bags deploy. A shorting bar (if equipped) is located in the connector. The Diagnostic Trouble Code (DTC) will be set if the pretensioner control circuit is shorted to ground for 2 s.

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

What does this mean?

What are the Possible Causes of the DTC B001B:02?

Faulty Passenger Seat Belt Anchor Pretensioner
Passenger Seat Belt Anchor Pretensioner harness is open or shorted
Passenger Seat Belt Anchor Pretensioner circuit poor electrical connection
Faulty Sensing and Diagnostic Module (SDM)

How to Fix the DTC B001B:02?

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 does this mean?

Code Tech Notes

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B001B:02 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 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.