B007CSecond Row Right Seat Belt Pretensioner B Deployment Control
- Generic OBD-II code · Body
- How the car detects it
- B007C is the second-row right counterpart of B007B: an additional pretensioner stage at the right outer rear seat. No manufacturer publishes this code. On that seat Mitsubishi uses B0075 for its retractor pretensioner and Mercedes uses B00E4 for the right rear emergency tensioning retractor, so neither leaves a role for B007C. A B stage would typically be a buckle or anchor unit acting on the lap belt; NHTSA's 2013 evaluation explains how a buckle pretensioner pulls the buckle down by a cable and piston, while Joyson describes lap tensioners working with the retractor. Rear lap units are far less common than front ones, so this code is unusual. When it does appear, the airbag lamp stays on and that stage cannot be counted on.
- What you may notice
- Airbag warning lamp on
- Right rear lap belt not pretensioned in a crash
- Safety note: the tensioner contains a pyrotechnic charge; only work on it with the battery disconnected and at a specialist workshop
- Likely causes
- LikelyPlug of the right rear buckle or anchor tensioner loosened during seat work
- PossibleAirbag module configuration lists a stage that is not installed
- RareInternal fault of the right rear B-stage tensioner
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €80 – €600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.