B0019Center Frontal Stage 2 Deployment Control
- Generic OBD-II code · Body
- How the car detects it
- B0019 is the stage 2 member of the first-row center frontal series B0018 to B001A, meant for the second inflator charge of a middle-seat frontal airbag. No carmaker publicly documents the code with this meaning. General Motors uses B0019 widely, but for stage 1 of the passenger airbag in the instrument panel: on the Saab 9-4X 2011 sub-codes 01 and 02 mark shorts, 04 an open, 0D a loop reading that stays high and 0E one that stays low, while stage 2 of that bag is B0020. On the 2009-10 Chevrolet HHR, fretting corrosion in the in-line connector between body and dash harness raised loop resistance and set B0019 0D or 04 (PI0117B and a customer satisfaction program). On GM vehicles the passenger airbag therefore needs checking first. The airbag lamp is on.
- What you may notice
- Airbag warning lamp on
- On GM the passenger frontal airbag stage 1 may not deploy
- 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
- LikelyOn GM vehicles fretting corrosion in the passenger airbag in-line connector (HHR PI0117B)
- RareFault in the stage 2 loop of a first-row center frontal airbag (J2012 meaning)
- RareInternal fault in the airbag module on this loop
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €80 – €1,300
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.