B007BSecond Row Left Seat Belt Pretensioner B Deployment Control
- Generic OBD-II code · Body
- How the car detects it
- B007B would cover a second pretensioner on the outboard left seat in row two, for example a lap tensioner in addition to the retractor unit. No manufacturer publishes B007B. The documented rear cases use other slots: Mitsubishi files its left rear retractor pretensioner under B0073, and Mercedes logs the left rear emergency tensioning retractor as B00E3, the C-stage code. Joyson's lap pretensioner shows the kind of hardware a B stage could stand for, since it is meant to fire alongside a retractor pretensioner. In IIHS crash tests that placed a dummy behind the driver, submarining showed up in some vehicles with rear pretensioners, which is the risk such a lap device addresses. A stored B007B keeps the airbag lamp lit and leaves that stage inactive.
- What you may notice
- Airbag warning lamp on
- Left rear lap belt not tightened in a crash
- Safety note: pyrotechnic part at the rear seat; work only de-energised (battery off, wait) and at a specialist workshop
- Likely causes
- LikelyPlug of the left rear lap or anchor tensioner disturbed when the bench was removed
- PossibleAirbag module coded for a rear B-stage tensioner that is not fitted
- RareFloor harness to the left rear seat damaged
- 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.