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Home >> Toyota >> 2021 >> 4Runner TRD Pro >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Airbag System - Diagnostic Codes (B1690-B1905) & Symptom Tests >> Airbag System >> DTC B1690-15: Door Side Airbag Sensor RH Malfunction; DTC B1695-16: Door Side Airbag Sensor LH Malfunction [08/2015 - 08/2019] >> Description

DTC B1690-15: Door Side Airbag Sensor RH Malfunction; DTC B1695-16: Door Side Airbag Sensor LH Malfunction [08/2015 - 08/2019]: Description

The side airbag sensor LH or RH consists of the safing sensor, diagnostic circuit, lateral deceleration sensor, etc.

If the center airbag sensor receives signals from the lateral deceleration sensor, it determines whether the SRS should be activated.

DTC B1690-15 or B1695-16 is stored when a malfunction is detected in the side airbag sensor LH or RH circuit.

DTC Code DTC Detection Condition Trouble Area
B1690-15 Either condition is met:
  • A side airbag sensor RH malfunction.
  • A center airbag sensor malfunction.
  • Side airbag sensor assembly RH
  • Center airbag sensor assembly
B1695-16 Either condition is met:
  • A side airbag sensor LH malfunction.
  • A center airbag sensor malfunction.
  • Side airbag sensor assembly LH
  • Center airbag sensor assembly