B1211
Driver Seatbelt Retractor Pretensioner Deployment Control Circuit
Severity
🔴 HighCan you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)
Symptoms
- Airbag light is on
- Seat belt does not tighten in an accident
- SRS system does not pass self-diagnosis
Causes
- Open or shorted wiring harness
- Seat belt pretensioner malfunction
- Problems with the SRS control unit
- Corrosion or oxidation of contacts
How to Fix
- Check the wiring harness for opens and shorts
- Check pretensioner chain resistance
- Inspect contacts for corrosion
- Replace seat belt pretensioner if necessary
- Reset error and check SRS system