Engine-Codes - Generic - B001A

B001A Code - Driver Seat Belt Anchor Pretensioner Deployment

- Code Popularity: 10,275 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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|What are the Possible Causes of the B001A Code?

  • 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 B001A Code?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

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|B001A code tech notes

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

|What is the cost to diagnose the B001A code?

Labor: 1.0

The cost to diagnose the B001A code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are B001A code possible symptoms?

  • Air Bag Warning Light ON

|What Does the B001A Code Mean?

During a side or frontal crash of sufficient force, the Inflatable Restraint Sensing and Diagnostic Module (SDM) will allow current to flow through the deployment loop in order to deploy an air bag or pretensioner. There are 2 shorting bars which will short together control circuits, when the connector is disconnected. This will help to prevent unwanted deployment of the air bag or pretensioner during servicing.

Driver Seat Belt Anchor Pretensioner Deployment

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|B001A code information for specific makes

  • B001A BUICK Driver Seat Belt Anchor Pretensioner Deployment
  • B001A CADILLAC Driver Seat Belt Anchor Pretensioner Deployment
  • B001A CHEVROLET Driver Seat Belt Anchor Pretensioner Deployment
  • B001A GMC Driver Seat Belt Anchor Pretensioner Deployment

|Need help with a B001A code?

Get the B001a 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.

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