Driver Curtain Airbag Deployment Control
A fault in the driver side curtain airbag circuit.
Have this diagnosed before driving further
Informational only. Consult a qualified mechanic.
- Faulty curtain airbag
- Wiring issue in headliner
- Control module fault
Have curtain airbag system inspected.
What does B0020 mean?
The B0020 OBD-II diagnostic trouble code (DTC) indicates: driver curtain airbag deployment control. This is a critical-severity body code that your vehicle's onboard diagnostics system triggers when a fault in the driver side curtain airbag circuit. If your check engine light is on with this code, you should have the vehicle inspected immediately before driving further.
Use Your Service Book to log this diagnostic trouble code to your vehicle's service history, track repairs, and get maintenance reminders — all for free.
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