LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2021 >> 4Runner Trail, 4WD >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Airbag System - Diagnostic Codes (B100-B1690) >> Airbag System >> DTC B1630-23: Rear Airbag Sensor RH Circuit Malfunction; DTC B1635-24: Rear Airbag Sensor LH Circuit Malfunction [08/2015 - 08/2019] >> Description

DTC B1630-23: Rear Airbag Sensor RH Circuit Malfunction; DTC B1635-24: Rear Airbag Sensor LH Circuit Malfunction [08/2015 - 08/2019]: Description

  1. The rear airbag sensor consists of the safing sensor, diagnostic circuit, lateral deceleration sensor, etc.
  2. If the center airbag sensor receives signals from the lateral deceleration sensor, it determines whether the SRS should be activated.
  3. DTC B1630 or B1635 is stored when a malfunction is detected in the rear airbag sensor circuit.
DTC Code DTC Detection Condition Trouble Area
B1630-23 Either condition is met:
  • A rear airbag sensor RH malfunction.
  • A center airbag sensor malfunction.
  • Rear airbag sensor RH
  • Center airbag sensor assembly
B1635-24 Either condition is met:
  • A rear airbag sensor LH malfunction.
  • A center airbag sensor malfunction.
  • Rear airbag sensor LH
  • Center airbag sensor assembly