B0039
Second Row Right Frontal Stage 1 Deployment Control
Fault on the second-row right frontal airbag, stage 1 deployment (low severity). Found on vehicles with rear-passenger frontal airbags integrated in the front seatbacks.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: hard
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Common causes
Ordered by how often each turns out to be the cause.
- Stage 1 squib circuit openCommon
Parts involved
- Second Row Right Frontal Airbag
- Squib Circuit
B0039 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.