OBD-II code · Body
B0079 Driver Seat Belt Pretensioner B Deployment Control
Fault on the driver seat belt pretensioner B deployment circuit. Pretensioner B is a secondary tightening stage on systems with multi-stage pretensioners.
Is it safe to drive with B0079?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyPretensioner B squib open
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Usually unaffected
- Parts involved
- Driver Pretensioner B, Squib Circuit
Related codes
- B007EDriver Seat Belt Pretensioner C Deployment Control
- B0076Driver Seatbelt Pretensioner Resistance Low
- B0077Driver Seatbelt Pretensioner Resistance High
- B0078Third Row Right Seat Belt Pretensioner Deployment Control
- B007APassenger Seat Belt Pretensioner B Deployment Control
- B007BSecond Row Left Seat Belt Pretensioner B Deployment Control
- B007CSecond Row Right Seat Belt Pretensioner B Deployment Control
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.