B001B - Passenger Seat Belt Anchor Pretensioner Deployment

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • 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)

Tech notes

DTC B001B 01 Passenger Seat Belt Anchor Pretensioner Deployment Loop Short to Battery
DTC B001B 02 Passenger Seat Belt Anchor Pretensioner Deployment Loop Short to Ground
DTC B001B 04 Passenger Seat Belt Anchor Pretensioner Deployment Loop Open
DTC B001B 0D Passenger Seat Belt Anchor Pretensioner Deployment Loop High Resistance
DTC B001B 0E Passenger Seat Belt Anchor Pretensioner Deployment Loop Low Resistance

Possible symptoms

  • Air Bag Warning Light ON

B001b Description

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.
OBDII Code B001b - Passenger Seat Belt Anchor Pretensioner Deployment - AutoCodes.com

B001B Information for specific makes

  • B001B BUICK Passenger Seat Belt Anchor Pretensioner Deployment
  • B001B CADILLAC Passenger Seat Belt Anchor Pretensioner Deployment
  • B001B CHEVROLET Passenger Seat Belt Anchor Pretensioner Deployment
  • B001B GMC Passenger Seat Belt Anchor Pretensioner Deployment

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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