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Home >> Lexus >> 2008 >> IS 250 RWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 33 (Supplemental Restraint System) >> 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 Air-bag Squib Circuit >> 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 Air-bag Squib Circuit: Description

WARNING: This page is about a different car, the 2008 Lexus IS F. 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 center airbag sensor assembly and the front passenger side knee airbag assembly

This circuit instructs 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 DETECTION CONDITION CHART

DTC No. DTC Detection Condition Trouble Area
B1865/65
  • The center airbag sensor assembly receives a line short circuit signal 5 times 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 for 2 seconds
  • 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 for 0 5 seconds
  • 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 for 0 5 seconds
  • 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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