B0001
Driver Frontal Stage 1 Deployment Control
The supplemental restraint system (SRS) module has detected a fault in the deployment control circuit for the first stage of the driver frontal airbag. The SRS warning lamp illuminates and airbag deployment may be impaired in a crash event.
- Check engine light: Not always
- Emissions related: No
- Repair difficulty: hard
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Common causes
Ordered by how often each turns out to be the cause.
- Clock spring (spiral cable) damaged in steering columnCommon
- Loose or corroded airbag connector under steering wheelPossible
- SRS control module internal faultLess likely
Parts involved
- Driver Airbag Module
- Srs Control Module
- Srs Wiring
- Clock Spring
B0001 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.