B0048Third Row Right Side Airbag Deployment Control
- Generic OBD-II code · Body
- How the car detects it
- B0048 is the right-hand counterpart of B0040: the deployment loop of a side airbag for the right seat in a third row. Few vehicles have one, because the third row usually relies on a curtain that reaches back to the D-pillar. Patent literature covers the hardware: Joyson's seatback side module is described for any seating row including the third, and GM's application treats each rear row as a separate system with its own generator that may stay idle when another fires. No manufacturer documents B0048, and NHTSA holds no bulletin with it. For a second-row right side bag, Mitsubishi shows the usual logic under B0038, a fault confirmed after 2 seconds. Airbag lamp on.
- What you may notice
- Airbag warning lamp on
- Right third-row occupant may lack side airbag protection
- Safety note: do not probe the airbag circuit yourself; unplug airbag connectors only with the battery disconnected and the stated wait time observed
- Likely causes
- LikelyPoor contact at the third-row right side airbag connector
- PossibleLead damaged by folding, sliding or removing the third-row seat
- RareRestraint module configured for equipment the vehicle does not have (wrong part or coding)
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €80 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.