B002ARight Curtain Deployment Control 2
- Generic OBD-II code · Body
- How the car detects it
- B002A is the second firing loop of the right curtain airbag, needed only where the right side has two curtain inflators or a separate curtain section for the rear seats. Mercedes-Benz uses it that way on the A-Class, CLA and GLB: B002A13 marks an open squib in the right rear window bag, while the front part reports B0029; a known trigger was poor contact at the control unit plug (LI54.21-P-070658). A TRW and Ford patent describes front-row and rear-row curtains that inflate separately and may be tethered together at the B-pillar. Where curtains also deploy in a rollover, FMVSS 226 requires a readiness indicator the driver can see. Airbag lamp on; head protection for the right rear seat may be missing.
- What you may notice
- Airbag warning lamp on
- Head protection for the right rear seat may be missing
- 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
- LikelyRaised contact resistance at the restraint module connector (Mercedes LI54.21-P-070658)
- PossibleDamaged lead to the rear curtain section at the C-pillar or roof rail
- RareInternal fault in the rear right curtain airbag module
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €100 – €1,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.