AutoCodes – GMC – B001B GMC

B001B GMC Code - Passenger Seat Belt Anchor Pretensioner Deployment Loop

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 GMC indicates Passenger Seat Belt Anchor Pretensioner Deployment Loop.
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 6,292

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 Oct 05, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B001B GMC 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.

OBDII Code B001B GMC - Passenger Seat Belt Anchor Pretensioner Deployment Loop - AutoCodes.com — B001B GMC Code - Passenger Seat Belt Anchor Pretensioner Deployment Loop

What does this mean?

What are the Possible Causes of the DTC B001B GMC?

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 GMC?

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 GMC 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 GMC code?

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

Need Help with the Code?

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

Information for Specific GMC Models

B001B 2014 GMC Sierra — Passenger Seat Belt Anchor Pretensioner Deployment Loop
B001B 2015 GMC Sierra — Passenger Seat Belt Anchor Pretensioner Deployment Loop
B001B 2016 GMC Sierra — Passenger Seat Belt Anchor Pretensioner Deployment Loop
B001B 2017 GMC Sierra — Passenger Seat Belt Anchor Pretensioner Deployment Loop
B001B 2018 GMC Sierra — Passenger Seat Belt Anchor Pretensioner Deployment Loop

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 GMC Code

1. What does OBDII code B001B for GMC indicate?

The code B001B for GMC refers to an issue with the Passenger Seat Belt Anchor Pretensioner Deployment Loop.

2. What are the common symptoms of OBDII code B001B GMC?

Common symptoms of code B001B may include the airbag warning light illuminating on the dashboard or the passenger seat belt pretensioner not functioning properly.

3. What are the possible causes of OBDII code B001B GMC?

Possible causes of code B001B can include a faulty passenger seat belt pretensioner, damaged wiring or connectors in the pretensioner system, or a problem with the airbag control module.

4. How can I diagnose the issue related to OBDII code B001B GMC?

Diagnosing code B001B typically involves using a diagnostic scan tool to read the fault codes, inspecting the passenger seat belt pretensioner system for visible damage, and testing the wiring and connectors for continuity.

5. Can I still drive my vehicle with OBDII code B001B GMC?

It is not recommended to drive the vehicle with an active fault code related to the passenger seat belt pretensioner system, as it may affect the proper functioning of the airbag system in the event of a collision.

6. How can I repair OBDII code B001B GMC?

Repairing code B001B may involve replacing the faulty passenger seat belt pretensioner, repairing or replacing damaged wiring or connectors, or reprogramming the airbag control module to clear the fault code.

7. Is it safe to reset the OBDII code B001B GMC without fixing the underlying issue?

Resetting the fault code without addressing the root cause of the issue is not recommended, as it may pose a safety risk in the event of an accident where the airbag system is needed.

8. Can a DIY enthusiast fix OBDII code B001B GMC at home?

While some simple checks like inspecting wiring connections can be done at home, diagnosing and repairing issues related to the passenger seat belt pretensioner system may require specialized tools and expertise best handled by a professional mechanic.

9. How much does it cost to repair OBDII code B001B GMC at a dealership?

The cost of repairing code B001B at a dealership can vary depending on the extent of the damage and the specific parts that need to be replaced, but it may range from a few hundred to over a thousand dollars.

10. How often does OBDII code B001B GMC occur in GMC vehicles?

Code B001B related to the Passenger Seat Belt Anchor Pretensioner Deployment Loop is a relatively uncommon OBDII code but may still occur in certain GMC vehicles with airbag and safety systems.