B0093
Side Impact Sensor Left Front Communication Lost
The SRS module has lost communication with the left front side impact sensor over the dedicated bus.
- 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.
- Open bus wiring to sensorCommon
- Sensor not poweredPossible
- Gateway module routing CAN messages incorrectlyLess likely
Parts involved
- Left Front Side Impact Sensor
- Srs Bus
B0093 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.