DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Airbag System - Diagnostic Codes (7 Of 7) & Symptom Tests >> Airbag System >> DTC B1875: Short in Passenger Side Front Seat Cushion Squib Circuit; DTC B1876: Open in Passenger Side Front Seat Cushion Squib Circuit; DTC B1877: Short to GND in Passenger Side Front Seat Cushion Squib Circuit; DTC B1878: Short to B+ in Passenger Side Front Seat Cushion Squib Circuit [12/2019 - 11/2023] >> Description

DTC B1875: Short in Passenger Side Front Seat Cushion Squib Circuit; DTC B1876: Open in Passenger Side Front Seat Cushion Squib Circuit; DTC B1877: Short to GND in Passenger Side Front Seat Cushion Squib Circuit; DTC B1878: Short to B+ in Passenger Side Front Seat Cushion Squib Circuit [12/2019 - 11/2023]: Description

The passenger side front seat cushion squib circuit consists of the airbag sensor assembly and front seat cushion airbag assembly RH.

The airbag sensor assembly uses this circuit to deploy the airbag when deployment conditions are met.

These DTCs are stored when a malfunction is detected in the passenger side front seat cushion squib circuit.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Test Mode / Check Mode
B1875 Short in Passenger Side Front Seat Cushion Squib Circuit
  • The airbag sensor assembly detects a line short in the passenger side front seat cushion squib circuit during the primary check.
  • Passenger side front seat cushion squib malfunction
  • Airbag sensor assembly malfunction
  • Floor wire
  • Passenger side front seat cushion squib (Front seat cushion airbag assembly RH)
  • Airbag sensor assembly
 Comes on Applies to check mode
B1876 Open in Passenger Side Front Seat Cushion Squib Circuit
  • The airbag sensor assembly detects an open in the passenger side front seat cushion squib circuit.
  • Passenger side front seat cushion squib malfunction
  • Airbag sensor assembly malfunction
  • Floor wire
  • Passenger side front seat cushion squib (Front seat cushion airbag assembly RH)
  • Airbag sensor assembly
 Comes on Applies to check mode
B1877 Short to GND in Passenger Side Front Seat Cushion Squib Circuit
  • The airbag sensor assembly detects a short to ground in the passenger side front seat cushion squib circuit.
  • Passenger side front seat cushion squib malfunction
  • Airbag sensor assembly malfunction
  • Floor wire
  • Passenger side front seat cushion squib (Front seat cushion airbag assembly RH)
  • Airbag sensor assembly
 Comes on Applies to check mode
B1878 Short to B+ in Passenger Side Front Seat Cushion Squib Circuit
  • The airbag sensor assembly detects a short to B+ in the passenger side front seat cushion squib circuit.
  • Passenger side front seat cushion squib malfunction
  • Airbag sensor assembly malfunction
  • Floor wire
  • Passenger side front seat cushion squib (Front seat cushion airbag assembly RH)
  • Airbag sensor assembly
 Comes on Applies to check mode
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