Code
B0100
Airbags
Driver frontal stage 1 deployment control circuit malfunction
The SRS module detected a fault in the driver airbag circuit. See a specialist.
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Most likely causes
- Faulty driver airbag module
- Clock spring fault
- Wiring fault
Symptoms you may notice
- Airbag warning light
Checks to run
- Read SRS codes
- Test the clock spring
- Inspect wiring
Tools you may need
SRS scan tool
Multimeter
Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.