OBD Codes List

Diagnostic reference · B0013

B0013

Passenger Knee Bolster Deployment Control

System
Body control (B code)
Lamp
Airbag Light
Category
Body

What it means

B0013 means Passenger Knee Bolster Deployment Control.

Check these first

  • An open in the passenger knee bolster squib circuit
  • A short to ground on the passenger knee bolster wiring
  • Corrosion at the passenger knee bolster connector
  • A failed passenger knee bolster airbag module
  • A crash sensor fault that disables the knee bolster output

What to do next

  1. Inspect the passenger knee bolster squib wiring for opens and shorts
  2. Check the passenger knee bolster connector for corrosion
  3. Test the passenger knee bolster squib circuit resistance
  4. Check the crash sensor signal to the airbag control module
  5. Replace the passenger knee bolster airbag module if the circuit is open
  6. Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.