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Home >> Lexus >> 2010 >> RX 350 FWD >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Restraint System (Diagnostic Codes (B1815/54 - B1928/78) & Circuit Tests) >> Airbag System >> DTC B1865/65: Short in Front Passenger Side Knee Airbag Squib Circuit; DTC B1866/65: Open in Front Passenger Side Knee Airbag Squib Circuit; DTC B1867/65: Short to GND in Front Passenger Side Knee Airbag Squib Circuit; DTC B1868/65: Short to B+ in Front Passenger Side Knee Airbag Squib Circuit (To 08/2009) >> Description

DTC B1865/65: Short in Front Passenger Side Knee Airbag Squib Circuit; DTC B1866/65: Open in Front Passenger Side Knee Airbag Squib Circuit; DTC B1867/65: Short to GND in Front Passenger Side Knee Airbag Squib Circuit; DTC B1868/65: Short to B+ in Front Passenger Side Knee Airbag Squib Circuit (To 08/2009): Description

The front passenger side knee airbag squib circuit consists of the center airbag sensor assembly and the front passenger side knee airbag assembly.

This circuit instructs the SRS to deploy when deployment conditions are met.

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

DTC No. DTC Detection Condition Trouble Area
B1865/65
  • The center airbag sensor assembly receives a line short circuit signal in the front passenger side knee airbag squib circuit during primary check.
  • Front passenger side knee airbag squib malfunction
  • Center airbag sensor assembly malfunction
  • Instrument panel wire
  • Front passenger side knee airbag assembly (Front passenger side knee airbag squib)
  • Center airbag sensor assembly
B1866/65
  • The center airbag sensor assembly receives an open circuit signal in the front passenger side knee airbag squib circuit.
  • Front passenger side knee airbag squib malfunction
  • Center airbag sensor assembly malfunction
  • Instrument panel wire
  • Front passenger side knee airbag assembly (Front passenger side knee airbag squib)
  • Center airbag sensor assembly
B1867/65
  • The center airbag sensor assembly receives a short circuit to ground signal in the front passenger side knee airbag squib circuit.
  • Front passenger side knee airbag squib malfunction
  • Center airbag sensor assembly malfunction
  • Instrument panel wire
  • Front passenger side knee airbag assembly (Front passenger side knee airbag squib)
  • Center airbag sensor assembly
B1868/65
  • The center airbag sensor assembly receives a short circuit to B+ signal in the front passenger side knee airbag squib circuit.
  • Front passenger side knee airbag squib malfunction
  • Center airbag sensor assembly malfunction
  • Instrument panel wire
  • Front passenger side knee airbag assembly (Front passenger side knee airbag squib)
  • Center airbag sensor assembly
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