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Home >> Toyota >> 2021 >> 4Runner Limited, RWD >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Airbag System - Diagnostic Codes (B100-B1690) >> Airbag System >> DTC B1660: P Seat Airbag Active Mode Indicator [08/2019 - ] >> Description

DTC B1660: P Seat Airbag Active Mode Indicator [08/2019 - ]: Description

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

The passenger airbag ON/OFF indicator indicates the operation condition of the instrument panel passenger airbag, lower No. 2 instrument panel airbag, front seat side airbag RH and front seat outer belt RH.

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

DTC Code DTC Detection Condition Trouble Area
B1660 One of the following conditions is met:
  • The airbag sensor assembly detects an open circuit signal, short circuit to ground signal or short circuit to B+ signal in the passenger airbag ON/OFF indicator circuit for 2 seconds.
  • A passenger airbag ON/OFF indicator malfunction.
  • An airbag sensor assembly malfunction.
  • Instrument panel wire
  • Driver side junction block assembly
  • Telltale light assembly
  • Airbag sensor assembly