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Home >> Scion >> 2012 >> tC Automatic Trans >> Repair and Diagnosis (Single Page) >> Restraints >> Air Bag, SRS >> Supplemental Restraint System (Diagnostic Codes & Symptom 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 >> 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: Description

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

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

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

DTC Code DTC Detection Condition Trouble Area
B1865/65 One of the following conditions is met:
  • The center airbag sensor detects a line short circuit signal 5 times in the front passenger side knee squib circuit during the primary check.
  • A front passenger side knee squib malfunction.
  • A center airbag sensor malfunction.
  • Instrument panel wire
  • Lower No. 2 instrument panel airbag assembly (Front passenger side knee squib)
  • Center airbag sensor assembly
B1866/65 One of the following conditions is met:
  • The center airbag sensor detects an open circuit signal in the front passenger side knee squib circuit for 2 seconds.
  • A front passenger side knee squib malfunction.
  • A center airbag sensor malfunction.
  • Instrument panel wire
  • Lower No. 2 instrument panel airbag assembly (Front passenger side knee squib)
  • Center airbag sensor assembly
B1867/65 One of the following conditions is met:
  • The center airbag sensor detects a short circuit to ground signal in the front passenger side knee squib circuit for 0.5 seconds.
  • A front passenger side knee squib malfunction.
  • A center airbag sensor malfunction.
  • Instrument panel wire
  • Lower No. 2 instrument panel airbag assembly (Front passenger side knee squib)
  • Center airbag sensor assembly
B1868/65 One of the following conditions is met:
  • The center airbag sensor detects a short circuit to B+ signal in the front passenger side knee squib circuit for 0.5 seconds.
  • A front passenger side knee squib malfunction.
  • A center airbag sensor malfunction.
  • Instrument panel wire
  • Lower No. 2 instrument panel airbag assembly (Front passenger side knee squib)
  • Center airbag sensor assembly
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