B00E3Second Row Left Seat Belt Pretensioner C Deployment Control
- Generic OBD-II code · Body
- How the car detects it
- B00E3 is the C-stage tensioner of the left outer rear seat, and two makers document it codegenau. Stellantis case S2408000089 (Jeep Wrangler 2023) has the occupant restraint controller store B00E3-13, named there for the retractor tensioner at the left of row two, after a service visit; the fix was to secure connector D3244A with a push-pull-push check, no parts. Mercedes-Benz topic LI54.21-P-070658 (A-Class, CLA, later GLB) reads B00E313 as an open squib in the tensioning retractor behind the left rear passenger, usually caused by high contact resistance at the airbag unit plug; reconnecting comes first, a new control unit only if the fault returns. So C here means the retractor, as Joyson's pyrotechnic retractor describes. Airbag lamp on.
- What you may notice
- Airbag warning lamp or SRS message in the cluster
- Left rear shoulder belt is not retracted in a crash
- Safety note: the retractor pretensioner is pyrotechnic; work only with the system de-energised (battery off, wait time) and preferably at a specialist workshop
- Likely causes
- LikelyRetractor pretensioner plug not latched after trim or seat work (Jeep Wrangler 2023, connector D3244A)
- PossibleHigh contact resistance at the airbag control unit connector (Mercedes LI54.21-P-070658)
- PossibleLead to the left rear retractor chafed at the C-pillar or seat frame
- RareFaulty squib in the retractor pretensioner
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €50 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.