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Home >> Lexus >> 2013 >> GS 450h >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Restraint System (Diagnostic Codes (B1692/81 - B1928/78) & Symptom Tests) >> Airbag System >> DTC B1693/81: Door Side Airbag Sensor RH Initialization Incomplete; DTC B1698/82: Door Side Airbag Sensor LH Initialization Incomplete >> Description

DTC B1693/81: Door Side Airbag Sensor RH Initialization Incomplete; DTC B1698/82: Door Side Airbag Sensor LH Initialization Incomplete: Description

The circuit for the side collision sensor LH or RH (to determine deployment of the front seat airbag LH or RH, rear seat airbag LH or RH, front seat belt pretensioner LH or RH, rear seat belt pretensioner LH or RH and curtain shield airbag LH or RH) is composed of the center airbag sensor assembly, rear airbag sensor LH or RH, door side airbag sensor LH or RH and side airbag sensor assembly LH or RH.

The side airbag sensor assembly LH or RH, door side airbag sensor LH or RH and rear airbag sensor LH or RH detect impacts to the vehicle and send signals to the center airbag sensor assembly to determine if the airbag should be deployed.

DTC B1693/81 or B1698/82 is stored when a malfunction is detected in the circuit for the side collision sensor LH or RH (to determine deployment of the front seat airbag LH or RH, rear seat airbag LH or RH, front seat belt pretensioner LH or RH, rear seat belt pretensioner LH or RH and curtain shield airbag LH or RH).

DTC Code DTC Detection Condition Trouble Area
B1693/81 One of the following conditions is met:
  • The center airbag sensor assembly detects a line short circuit signal, open circuit signal, short circuit to ground signal or short circuit to B+ signal in the circuit for the side collision sensor RH for 2 seconds.
  • A door side airbag sensor RH malfunction.
  • A side airbag sensor assembly RH malfunction.
  • A center airbag sensor assembly malfunction.
  • Floor wire
  • Front door wire RH
  • Door side airbag sensor RH
  • Side airbag sensor assembly RH
  • Center airbag sensor assembly
B1698/82 One of the following conditions is met:
  • The center airbag sensor assembly detects a line short circuit signal, open circuit signal, short circuit to ground signal or short circuit to B+ signal in the circuit for the side collision sensor LH for 2 seconds.
  • A door side airbag sensor LH malfunction.
  • A side airbag sensor assembly LH malfunction.
  • A center airbag sensor assembly malfunction.
  • No. 2 floor wire
  • Front door wire LH
  • Door side airbag sensor LH
  • Side airbag sensor assembly LH
  • Center airbag sensor assembly