B001A Possible Causes
- Faulty driver seat belt anchor pretensioner
- Driver seat belt anchor pretensioner harness is open or shorted
- Poor electrical connection in driver seat belt anchor pretensioner circuit
- Faulty Sensing and Diagnostic Module (SDM)
How is B001A Code Repaired?
Start by checking the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.
Technical Notes
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
Possible Symptoms
- Airbag warning light illuminated
B001A Meaning
During a side or frontal collision of sufficient force, the Inflatable Restraint Sensing and Diagnostic Module (SDM) will allow current to flow through the deployment loop to deploy an airbag or pretensioner. There are 2 shorting bars that will short the control circuits together when the connector is disconnected. This helps prevent unwanted deployment of the airbag or pretensioner during service.