B007APassenger Seat Belt Pretensioner B Deployment Control
- Generic OBD-II code · Body
- How the car detects it
- B007A is the passenger-side twin of B0079 and covers the second pretensioner on the front passenger seat. Mercedes lists B007A13 for an open in the squib of the passenger's belt end fitting tensioner on the A-, CLA- and GLB-Class and keeps the passenger retractor apart as B007F. A lap or anchor pretensioner of this kind fires together with the retractor unit, as Joyson explains for its lap pretensioner, and draws the lap belt down onto the pelvis to cut the risk of sliding under it. Mitsubishi files comparable lap pretensioners under its own codes B1001 and B1002 rather than in J2012 slots, so B007A is not expected there. Once B007A is set, the airbag lamp comes on and the module records that the passenger's lap tensioning is unavailable.
- What you may notice
- Airbag warning lamp on
- Passenger's lap belt not tightened in a crash, higher risk of sliding under it
- Safety note: pyrotechnic tensioner next to the seat; disconnect the battery, observe the wait time, have a specialist workshop do the repair
- Likely causes
- LikelyPlug at the passenger end fitting tensioner disturbed, e.g. after seat removal
- PossibleLead to the lap tensioner pinched under the passenger seat
- RareInternal fault of the passenger lap 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.