OBD Codes List

Diagnostic reference · B00A0

B00A0

Occupant Classification System

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

What it means

B00A0 means Occupant Classification System.

Check these first

  • A failed occupant classification sensor in the passenger seat
  • A wiring fault in the occupant classification system circuit
  • Corrosion at an occupant classification system connector
  • A weight mat that reads out of range
  • A restraint control module fault on the occupant classification input

What to do next

  1. Check the occupant classification system connectors for corrosion
  2. Test the occupant classification system wiring for opens and shorts
  3. Inspect the passenger seat weight mat for damage
  4. Measure the classification signal with a scan tool
  5. Calibrate the occupant classification system after any repair
  6. Clear the code and retest

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Updated

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