B0051
Driver Frontal Deployment Control Open
The SRS module has detected an open circuit in the driver frontal airbag deployment loop. Resistance is above the upper threshold, indicating broken wiring or a disconnected igniter.
- 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 conductor brokenCommon
- Airbag connector not fully seatedPossible
- Wiring open between module and squibLess likely
Parts involved
- Driver Airbag Module
- Clock Spring
- Srs Wiring
- Srs Control Module
B0051 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.