B0001 Driver Frontal Stage 1 Deployment Control
The SRS (airbag) module has detected a fault in the driver-side frontal airbag deployment circuit.
Definition
B0001 is a safety-critical code. The airbag warning light will be on and the driver-side frontal airbag may not deploy in a crash. Do not work on the SRS system without disconnecting the battery and waiting the manufacturer-specified time for the capacitors to discharge.
Common causes
- Failed clockspring in the steering column
- Damaged airbag igniter wiring
- Failed airbag module
- Connector under the driver seat disconnected or damaged
Common misdiagnoses
- Working on SRS components without first disabling the system and waiting for capacitor discharge — accidental deployment can cause serious injury.
Troubleshooting steps
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1. Disconnect the battery
Wait the manufacturer-specified time (commonly 60 seconds to 10 minutes) before working on SRS components.
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2. Inspect the clockspring
A failed clockspring in the steering column is the most common cause.
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3. Verify connector engagement
Check the airbag connector behind the steering wheel cover.
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4. Have SRS work done by a qualified tech
If you're not experienced with SRS, this is a job for a professional.