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Home >> Lexus >> 2008 >> IS 250 RWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 33 (Supplemental Restraint System) >> Airbag System >> DTC B1650/32 Occupant Classification System Malfunction >> Description

DTC B1650/32 Occupant Classification System Malfunction: Description

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

The occupant classification system circuit consists of the center airbag sensor assembly and the occupant classification system

If the center airbag sensor assembly receives signals from the occupant classification ECU, it determines whether the front passenger airbag, front passenger side knee airbag, front seat side airbag RH and front seat belt pretensioner RH should be operated

DTC B1650/32 is recorded when a malfunction is detected in the occupant classification system circuit.

DTC DETECTION CONDITION CHART

DTC No. DTC Detection Condition Trouble Area
B1650/32
  • The center airbag sensor assembly receives a line short circuit signal, an open circuit signal, a short circuit to ground signal or a short circuit to B+ signal in the occupant classification system circuit for 2 seconds
  • Occupant classification system malfunction
  • Center airbag sensor assembly malfunction
  • Floor wire
  • Front seat wire RH
  • Occupant classification system
  • Center airbag sensor assembly