OBD-II code · Body
B0004 Driver Frontal Deployment Loop Resistance High
The SRS module measured a higher than expected resistance in the driver frontal airbag deployment circuit. Causes include a partially open connection, corroded contacts, or a damaged clock spring conductor.
Is it safe to drive with B0004?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyClock spring conductor partially worn
- PossibleOxidized airbag connector pins
- Less likelyDriver airbag module internal fault
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.8–3 h
- Emissions test
- Usually unaffected
- Parts involved
- Driver Airbag Module, Clock Spring, Srs Wiring
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.