OBD-II code · Body
B0101 Front Crash Sensor Circuit Malfunction
A fault has been detected in the front crash sensor circuit, used to detect frontal impacts and trigger airbags/pretensioners.
Is it safe to drive with B0101?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySensor damaged after minor impact
- PossibleCorroded sensor connector behind bumper
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.7–2.5 h
- Emissions test
- Usually unaffected
- Parts involved
- Front Crash Sensor, Srs Control Module
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.