B0083Second Row Left Seat Belt Load Limiter Deployment Control
- Generic OBD-II code · Body
- How the car detects it
- B0083 is intended for a switchable force limiter on the left rear seat. No manufacturer publishes it with this J2012 meaning. Rear load limiters do exist: in an IIHS rear-seat test series presented in 2020, ten vehicles had both pretensioner and limiter at the back and one had a limiter alone. Much more often B0083 is a GM code for another part. On Global A models (2011 Saab 9-4X) it means the left front impact sensor, with symptom bytes for shorts, opens, low current, internal failure, wrong part and bad serial data; an open is flagged when the sensor stays silent longer than 375 ms. GM bulletin PI1480 (2015 Colorado/Canyon) traces stored B0083/B0084 with byte 05 to a corroded sensor or an unlatched connector lock. Saab 9-3 and 9-5 use it for the passenger seat position sensor.
- What you may notice
- Airbag warning lamp on, possibly only intermittently
- Left rear belt keeps a fixed limiting level in a crash
- Safety note: restraint system with pyrotechnic parts; work only de-energised at a specialist workshop
- Likely causes
- LikelyOn GM vehicles, corroded left front impact sensor or unlatched connector lock (PI1480, different meaning)
- PossibleWiring to the left rear retractor damaged under trim or seat
- RareInternal fault of the rear load limiter squib
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €60 – €800
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.