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Home >> Lexus >> 2021 >> ES 350 Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 265 (Airbag System (Hybrid) - Diagnostic Codes (3 Of 3) & Symptom Tests) >> AIRBAG SYSTEM (for HV Model) >> DTC B1865: Short in Knee Airbag (P Side) Squib Circuit; DTC B1866: Open in Knee Airbag (P Side) Squib Circuit; DTC B1867: Short in Knee Airbag (P Side) Squib Circuit (to Ground); DTC B1868: Short in Knee Airbag (P Side) Squib Circuit (to +B) [06/2018 - ] >> Description

DTC B1865: Short in Knee Airbag (P Side) Squib Circuit; DTC B1866: Open in Knee Airbag (P Side) Squib Circuit; DTC B1867: Short in Knee Airbag (P Side) Squib Circuit (to Ground); DTC B1868: Short in Knee Airbag (P Side) Squib Circuit (to +B) [06/2018 - ]: Description

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus ES 300h, 2023 Lexus ES 300h, 2022 Lexus ES 300h, 2021 Lexus ES 300h, and 2020 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

The front passenger side knee airbag squib circuit consists of the airbag ECU assembly and lower No. 2 instrument panel airbag assembly.

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

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

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Test Mode / Check Mode
B1865 Short in Knee Airbag (P Side) Squib Circuit
  • The airbag ECU assembly detects a line short in the front passenger side knee airbag squib during the primary check.
  • Front passenger side knee airbag squib malfunction
  • Airbag ECU assembly malfunction
  • Instrument panel wire
  • Front passenger side knee airbag squib (Lower No. 2 instrument panel airbag assembly)
  • Airbag ECU assembly
Comes on Applies to check mode
B1866 Open in Knee Airbag (P Side) Squib Circuit
  • The airbag ECU assembly detects an open in the front passenger side knee airbag squib.
  • Front passenger side knee airbag squib malfunction
  • Airbag ECU assembly malfunction
  • Instrument panel wire
  • Front passenger side knee airbag squib (Lower No. 2 instrument panel airbag assembly)
  • Airbag ECU assembly
Comes on Applies to check mode
B1867 Short in Knee Airbag (P Side) Squib Circuit (to Ground)
  • The airbag ECU assembly detects a short to ground in the front passenger side knee airbag squib.
  • Front passenger side knee airbag squib malfunction
  • Airbag ECU assembly malfunction
  • Instrument panel wire
  • Front passenger side knee airbag squib (Lower No. 2 instrument panel airbag assembly)
  • Airbag ECU assembly
Comes on Applies to check mode
B1868 Short in Knee Airbag (P Side) Squib Circuit (to +B)
  • The airbag ECU assembly detects a short to B+ in the front passenger side knee airbag squib.
  • Front passenger side knee airbag squib malfunction
  • Airbag ECU assembly malfunction
  • Instrument panel wire
  • Front passenger side knee airbag squib (Lower No. 2 instrument panel airbag assembly)
  • Airbag ECU assembly
Comes on Applies to check mode