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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 B1661/44: Roll Over Cut Off Indicator Malfunction (08/2010 - 08/2011) >> Description

DTC B1661/44: Roll Over Cut Off Indicator Malfunction (08/2010 - 08/2011): Description

The curtain shield airbag cutoff switch is a mechanism that operates both the right and left sides of the curtain shield airbag and the front seat outer belt when the center airbag sensor detects a roll-over.

The RSCA OFF indicator is installed in the combination meter.

If the curtain shield airbag cutoff switch is operated, the indicator comes on to inform the drive that the roll-over detection system is not working.

The initial setting of the roll-over detection system is on. It automatically operates every time the engine switch is turned on (IG).

DTC Code DTC Detection Condition Trouble Area
B1661/44 When one of the following conditions is met:
  • The center airbag sensor receives an open signal or short to ground in the RSCA OFF indicator circuit.
  • An RSCA OFF indicator malfunction.
  • A center airbag sensor malfunction.
  • Combination meter assembly
  • Curtain shield airbag cutoff switch
  • Center airbag sensor assembly
  • Instrument panel wire
  • Floor wire
  • No. 2 floor wire