B0032Second Row Left Frontal Stage 2 Deployment Control
- Generic OBD-II code · Body
- How the car detects it
- B0032 concerns a second igniter for the rear-seat frontal airbag on the left. A second stage lets the module add gas later or skip it, depending on crash severity and on who sits behind the seat; a Mercedes-Benz filing for a backrest-mounted rear airbag allows separate deployment devices for its chambers so they can fire in sequence. In that car the rear bag's tube frame is filled with compressed gas while its centre takes in outside air. No published DTC table assigns B0032 to this use. GM's Global A modules give the number to the left rear belt pretensioner: the Saab 9-4X 2011 sets it after 2 seconds of a short, an open, above 4.2 ohms or below 1.4 ohms. Airbag lamp on.
- What you may notice
- Airbag warning lamp on
- Rear-seat airbag may inflate with less force or not at all
- 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
- LikelyLoose or corroded connector of the airbag lead routed through the front seat backrest
- PossibleOpen or short only in the stage 2 pair of wires to the rear airbag
- PossibleFaulty second igniter inside the rear-seat airbag module
- 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: €100 – €1,200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.