B0013: Passenger Knee Bolster Deployment Control
Standardized SAE J2012 code · B00xx — Restraints and airbags
Safety-critical system. Faults in airbags, brakes, steering or high-voltage components can put people at risk. Follow the manufacturer's service information and safety procedures, or have the vehicle checked by a qualified workshop.
What does B0013 mean?
Fault on the deployment control circuit of the passenger knee airbag (knee bolster). Restricts lower-body motion of the passenger in a frontal collision.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Common causes
- High Squib (igniter) circuit open
- Medium Airbag connector corroded under seat
Likelihood is a general estimate across vehicles; your make and model may differ.
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