B2290: Occupant Classification System Error

Symptoms

• Airbag warning lamp illuminated
• Passenger side deployment logic default disabled

Common causes

• Faulty front passenger seat pressure sensor or module
• Wiring mismatch or poor ground connection underneath the passenger seat
• Recent deep interior cleaning or heavy weight causing sensor deformation

What to do?

Check under-seat wiring for loose connections. Use a scan tool to view real-time live data from the Occupant Classification System module to see if weight registers. Perform a zero-point recalibration procedure. If the weight remains static or errant, replace the OCS sensor pad.