B0070
Vehicle Rollover Sensor
The SRS module has detected a fault in the rollover sensor circuit. The rollover sensor triggers curtain airbags and seat belt pretensioners when the vehicle approaches a tip-over angle.
- Check engine light: Not always
- 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.
- Rollover sensor failedCommon
- Wiring or connector faultPossible
- SRS control module faultLess likely
Parts involved
- Rollover Sensor
- Srs Control Module
- Srs Wiring
B0070 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.