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

Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.