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Home >> Lexus >> 2011 >> LX 570 >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Airbag System (Diagnostic Codes (B1000/31 - B1662/45)) >> Airbag System >> DTC B1660/43: Passenger Airbag ON/OFF Indicator Circuit Malfunction (08/2011 - ) >> Description

DTC B1660/43: Passenger Airbag ON/OFF Indicator Circuit Malfunction (08/2011 - ): Description

The passenger airbag ON/OFF indicator circuit consists of the center airbag sensor and the passenger airbag ON/OFF indicator.

The passenger airbag ON/OFF indicator indicates the operation condition of the front passenger airbag, front passenger side knee airbag, front seat airbag RH and front seat outer belt RH.

DTC B1660/43 is stored when a malfunction is detected in the passenger airbag ON/OFF indicator circuit.

DTC Code DTC Detection Condition Trouble Area
B1660/43 When one of the following conditions is met:
  • The center airbag sensor receives an open circuit signal, a short circuit to ground signal or a short circuit to B+ signal in the passenger airbag ON/OFF indicator circuit for 2 seconds.
  • A passenger airbag ON/OFF indicator malfunction.
  • A center airbag sensor malfunction.
  • Instrument panel wire
  • Display and navigation module display
  • Center airbag sensor assembly
  • No. 2 instrument panel wire