B0140
Passenger Seatbelt Tension Sensor Circuit
The passenger seatbelt tension sensor circuit is faulty.
- Check engine light: Not always
- Emissions related: No
- Repair difficulty: medium
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.
- Tension sensor faultCommon
- Loose sensor connectorPossible
Parts involved
- Passenger Seatbelt Tension Sensor
- Srs Control Module
B0140 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.