AutoCodes – GMC – B001A GMC

B001A GMC Code - Driver 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 Driver Seat Belt Anchor Pretensioner, Driver Seat Belt Anchor Pretensioner harness is open or shorted, Driver 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: B001A GMC indicates Driver Seat Belt Anchor Pretensioner Deployment Loop.
Common causes: Common causes include Faulty Driver Seat Belt Anchor Pretensioner, Driver Seat Belt Anchor Pretensioner harness is open or shorted, Driver 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 14,486

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 B001A 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 B001A GMC - Driver Seat Belt Anchor Pretensioner Deployment Loop - AutoCodes.com — B001A GMC Code - Driver Seat Belt Anchor Pretensioner Deployment Loop

What does this mean?

What are the Possible Causes of the DTC B001A GMC?

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

How to Fix the DTC B001A 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

B001A:01 Driver Seat Belt Anchor Pretensioner Deployment Loop Short to Battery
B001A:02 Driver Seat Belt Anchor Pretensioner Deployment Loop Short to Ground
B001A:04 Driver Seat Belt Anchor Pretensioner Deployment Loop Open
B001A:0D Driver Seat Belt Anchor Pretensioner Deployment Loop High Resistance
B001A:0E Driver Seat Belt Anchor Pretensioner Deployment Loop Low Resistance

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B001A 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 B001A GMC code?

Need more information on how to fix the B001A GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B001A GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

B001A 2014 GMC Sierra — Driver Seat Belt Anchor Pretensioner Deployment Loop
B001A 2015 GMC Sierra — Driver Seat Belt Anchor Pretensioner Deployment Loop
B001A 2016 GMC Sierra — Driver Seat Belt Anchor Pretensioner Deployment Loop
B001A 2017 GMC Sierra — Driver Seat Belt Anchor Pretensioner Deployment Loop
B001A 2018 GMC Sierra — Driver 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 B001A GMC Code

1. What does OBDII code B001A for GMC indicate?

The code B001A for GMC refers to a fault in the Driver Seat Belt Anchor Pretensioner Deployment Loop.

2. What are the common symptoms of OBDII code B001A GMC?

Common symptoms of this code include the airbag warning light illuminating on the dashboard and potential issues with the driver's seat belt pretensioner.

3. What are the possible causes of OBDII code B001A GMC?

Potential causes of this code include a malfunction in the seat belt pretensioner system, a faulty seat belt anchor, wiring issues, or a problem with the airbag control module.

4. How can I diagnose OBDII code B001A on my GMC vehicle?

Diagnosing this code typically involves using a professional OBDII scanner to read and interpret the error codes stored in the vehicle's system. It is recommended to consult a qualified mechanic for accurate diagnosis.

5. Is it safe to drive with OBDII code B001A present in my GMC?

It is not recommended to drive with this code present, as it indicates a potential issue with the seat belt pretensioner system, which is an essential safety component in the event of a collision.

6. How can I repair OBDII code B001A on my GMC?

Repairing this code may involve inspecting and repairing the seat belt pretensioner system, checking and fixing any wiring issues, or replacing the faulty components. It is advised to seek professional assistance for proper repair.

7. Can I reset OBDII code B001A on my GMC by disconnecting the battery?

While disconnecting the battery may clear the code temporarily, it is not a permanent solution. It is important to address the underlying issue causing the code to prevent it from reoccurring.

8. How much does it cost to repair OBDII code B001A on a GMC vehicle?

The cost of repairing this code can vary depending on the specific issue causing it, the labor rates of the repair shop, and the cost of any replacement parts needed. It is best to obtain a quote from a trusted mechanic.

9. Are there any recalls related to OBDII code B001A for GMC vehicles?

Recalls related to this specific OBDII code can vary by model year and region. It is recommended to check with the manufacturer or a GMC dealership to inquire about any relevant recalls for your vehicle.

10. How can I prevent OBDII code B001A from occurring in the future?

To prevent this code from occurring, it is essential to regularly maintain and inspect the seat belt pretensioner system, address any warning lights or issues promptly, and follow the manufacturer's recommended maintenance schedule for your GMC vehicle.