B0001: Driver Frontal Stage 1 Deployment Control
The airbag module has detected a fault in the driver front airbag stage 1 circuit.
High risk
Have it checked promptly. The driver airbag may not deploy.
Short answer · Can I keep driving with B0001?
The car drives normally, but the driver airbag may not protect you. Have it checked as soon as possible.
What does B0001 mean?
B0001 concerns the first stage of the driver front airbag. The clock spring behind the steering wheel and its connectors are common causes.
What the car does when the code is set
The airbag warning light comes on. The affected airbag may not deploy in a crash.
How the system works
Each airbag has an igniter (squib) circuit. The airbag control module constantly checks the resistance of these circuits and stores a code when it is out of range, because the airbag might not deploy correctly.
Common symptoms
Possible causes
Listed without ranking. The cause on your car depends on make, engine and mileage — see the maker notes below.
- Connector or clock spring faultFor driver airbag codes, the rotating clock spring behind the steering wheel is a common cause.
- Seat wiring connectorsSide airbag connectors under the seats can loosen when seats are moved.
- Damaged wiringWires pinched by seat rails or trim.
- Faulty airbag module (inflator) circuitResistance outside the expected range.
- Previous repairsDisturbed connectors after interior work.
How it is diagnosed
- Treat the airbag light seriouslyThe affected airbag may not deploy in a crash.
- Do not disturb airbag parts yourselfAirbag diagnosis and repair should be left to trained technicians.Never probe airbag connectors or measure resistance across an airbag. Accidental deployment can cause serious injury.
- Tell the workshop about recent workSeat removal, steering wheel work or a collision helps narrow the cause.
Questions about B0001
What is a clock spring?
A coiled ribbon cable that keeps the steering wheel airbag connected while the wheel turns.
Can I clear an airbag code myself?
The light may come back if the fault is still there. The system needs proper diagnosis.