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Engine-Codes – GMC – B001B 2016 GMC Sierra

B001B 2016 GMC Sierra Code - Passenger Seat Belt Anchor Pretensioner Deployment Loop

Quick Answer

The B001B diagnostic trouble code (DTC) for the 2016 GMC Sierra relates to the passenger seat belt anchor pretensioner deployment loop. Common causes include Faulty passenger seat belt pretensioner unit, Wiring issues or damaged wiring in the pretensioner deployment loop, Loose or corroded connections in the pretensioner 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
B001B 2016 GMC Sierra indicates Passenger Seat Belt Anchor Pretensioner Deployment Loop.
Common causes
Common causes include Faulty passenger seat belt pretensioner unit, Wiring issues or damaged wiring in the pretensioner deployment loop, Loose or corroded connections in the pretensioner 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 15, 2024
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Code B001B 2016 GMC Sierra Description

The B001B diagnostic trouble code (DTC) for the 2016 GMC Sierra relates to the passenger seat belt anchor pretensioner deployment loop. This code indicates a potential issue with the pretensioner system in the passenger seat belt, which is designed to tighten the seat belt in the event of a collision to secure the occupant in place and reduce the risk of injury. The pretensioner deployment loop is a crucial safety feature that must function properly for the seat belt system to work effectively in the event of an accident.

OBDII Code B001B 2016 GMC Sierra - Passenger Seat Belt Anchor Pretensioner Deployment Loop
B001B 2016 GMC Sierra Code - Passenger Seat Belt Anchor Pretensioner Deployment Loop

Common Causes of B001B 2016 GMC Sierra

  1. Faulty passenger seat belt pretensioner unit.
  2. Wiring issues or damaged wiring in the pretensioner deployment loop.
  3. Loose or corroded connections in the pretensioner system.
  4. Sensor malfunction detecting a problem with the pretensioner system.
  5. Impact or damage to the passenger seat belt anchor pretensioner deployment loop.

Symptoms of B001B 2016 GMC Sierra

  1. Airbag warning light illuminated on the dashboard.
  2. Passenger seat belt warning light flashing or staying on.
  3. Inability to properly secure the passenger seat belt.
  4. Audible warning chime when the vehicle is in motion.
  5. Diagnostic trouble code B001B stored in the vehicle's computer system.

How to Fix B001B 2016 GMC Sierra

  1. Begin by diagnosing the specific cause of the B001B code using a professional diagnostic scan tool.
  2. Inspect the passenger seat belt pretensioner unit for any visible damage or signs of malfunction.
  3. Check the wiring and connections in the pretensioner deployment loop for any issues, such as loose connections or damage.
  4. Replace any faulty components, such as the pretensioner unit or damaged wiring, as needed.
  5. Clear the DTC from the vehicle's computer system and perform a test drive to ensure the issue has been resolved.

Cost to Fix B001B 2016 GMC Sierra

The cost of repairing a passenger seat belt anchor pretensioner deployment loop issue can vary depending on the specific cause of the problem and the extent of the repairs needed. In general, the cost of parts for this repair could range from $100 to $300, while labor costs could range from $150 to $300. Overall, the total repair cost for addressing a B001B code in a 2016 GMC Sierra could be in the range of $250 to $600. It's important to note that these are rough estimates, and actual repair costs may vary based on factors such as location, labor rates, and the availability of parts. It's recommended to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate.

What does this mean?

Tech Notes for B001B 2016 GMC Sierra

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 2016 GMC Sierra code?

Need more information on how to fix the B001B 2016 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 2016 GMC Sierra Code

1. What does OBDII code B001B for a 2016 GMC Sierra indicate?

The B001B code specifically refers to a fault in the Passenger Seat Belt Anchor Pretensioner Deployment Loop.

2. What are the common symptoms of OBDII code B001B in a 2016 GMC Sierra?

Common symptoms include the airbag warning light illuminating on the dashboard and potential issues with the passenger seat belt pretensioner system.

3. What are the possible causes of OBDII code B001B in a 2016 GMC Sierra?

The code B001B can be triggered by a faulty seat belt pretensioner, damaged wiring in the passenger seat belt system, or a loose connection in the deployment loop.

4. How can I diagnose the cause of OBDII code B001B in my 2016 GMC Sierra?

Diagnosing the issue typically involves using a diagnostic scanner to retrieve the specific fault codes, inspecting the seat belt pretensioner system for visible damage, and checking the wiring connections for any issues.

5. Can I continue driving my 2016 GMC Sierra with OBDII code B001B?

It is not recommended to drive the vehicle with an unresolved B001B code, as it indicates a potential safety issue with the passenger seat belt pretensioner system.

6. How can I repair OBDII code B001B in my 2016 GMC Sierra?

Repairing the B001B code may involve replacing the faulty seat belt pretensioner, repairing damaged wiring, or fixing any loose connections in the deployment loop.

7. Is it safe to reset the OBDII code B001B in my 2016 GMC Sierra without fixing the issue?

Resetting the code without fixing the underlying problem may temporarily turn off the warning light, but the safety concern with the passenger seat belt system will remain unresolved.

8. Can I repair OBDII code B001B in my 2016 GMC Sierra myself, or do I need a professional mechanic?

While some basic inspections and repairs can be done by DIYers, addressing the B001B code may require specialized tools and expertise, so consulting a professional mechanic is advisable.

9. How much does it typically cost to fix OBDII code B001B in a 2016 GMC Sierra?

The cost of fixing the B001B code can vary depending on the specific issue, but it may involve parts and labor expenses ranging from a hundred to a few hundred dollars.

10. How often does OBDII code B001B occur in 2016 GMC Sierra vehicles?

The occurrence of the B001B code can vary depending on factors like vehicle usage and maintenance, but issues with seat belt pretensioner systems are relatively common in modern vehicles.

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