B0072
Driver Seatbelt Pretensioner Loop Open
The SRS module detects an open circuit in the driver seatbelt pretensioner deployment loop. The pretensioner cannot fire and the airbag warning lamp is on.
- 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.
- Pretensioner connector unpluggedCommon
- Wire break in B-pillarPossible
Parts involved
- Driver Seatbelt Pretensioner
- Srs Seat Wiring
B0072 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.