B0038Second Row Right Side Airbag Deployment Control
- Generic OBD-II code · Body
- How the car detects it
- B0038 watches the firing loop of the side airbag for the right-hand second-row seat, fitted in the rear door trim or in the outer bolster of the rear backrest. Mitsubishi lists it as rear side airbag module RH with exactly this J2012 wording and logs B0038-12 when the circuit has been shorted to supply for 2 seconds. On Mercedes-Benz compact models (A-Class, CLA, GLB) B003813 is an open squib in the right rear sidebag. A GM patent family keeps rear-row side bags on their own gas generators, separate from the front-row system. GM's Saab 9-4X 2011 manual lists B0038 in the same procedure as its front seat side bags. Left twin: B0030. The airbag lamp is lit.
- What you may notice
- Airbag warning lamp on
- Right rear passenger 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 rear side airbag connector in the door or rear seat
- PossibleInternal fault in the right rear side airbag module
- RareLead chafed against a powered wire, e.g. at the rear seat fold or B-pillar
- 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.