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Home >> Toyota >> 2012 >> Matrix Base, Automatic Trans >> Repair and Diagnosis (Single Page) >> Restraints >> Restraints Control Systems >> Supplemental Restraint System (Diagnostic Codes (B1000 - B1974) & Symptom Tests) >> Airbag System >> DTC B1805/52: Short in Front Passenger Side Squib Circuit; DTC B1806/52: Open in Front Passenger Side Squib Circuit; DTC B1807/52: Short to GND in Front Passenger Side Squib Circuit; DTC B1808/52: Short to B+ in Front Passenger Side Squib Circuit >> Description
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DTC B1805/52: Short in Front Passenger Side Squib Circuit; DTC B1806/52: Open in Front Passenger Side Squib Circuit; DTC B1807/52: Short to GND in Front Passenger Side Squib Circuit; DTC B1808/52: Short to B+ in Front Passenger Side Squib Circuit: Description

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

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

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

DTC No. DTC Detection Condition Trouble Area
B1805/52
  • The center airbag sensor assembly receives a short circuit signal 5 times in the front passenger side squib circuit during primary check.
  • Front passenger side squib malfunction
  • Center airbag sensor assembly malfunction
  • Instrument panel wire
  • Instrument panel wire assembly
  • Front passenger airbag assembly (Front passenger side squib)
  • Center airbag sensor assembly
B1806/52
  • The center airbag sensor assembly receives an open circuit signal in the front passenger side squib circuit for 2 seconds.
  • Front passenger side squib malfunction
  • Center airbag sensor assembly malfunction
  • Instrument panel wire
  • Instrument panel wire assembly
  • Front passenger airbag assembly (Front passenger side squib)
  • Center airbag sensor assembly
B1807/52
  • The center airbag sensor assembly receives a short circuit to ground signal in the front passenger side squib circuit for 0.5 seconds.
  • Front passenger side squib malfunction
  • Center airbag sensor assembly malfunction
  • Instrument panel wire
  • Instrument panel wire assembly
  • Front passenger airbag assembly (Front passenger side squib)
  • Center airbag sensor assembly
B1808/52
  • The center airbag sensor assembly receives a short circuit to B+ signal in the front passenger side squib circuit for 0.5 seconds.
  • Front passenger side squib malfunction
  • Center airbag sensor assembly malfunction
  • Instrument panel wire
  • Instrument panel wire assembly
  • Front passenger airbag assembly (Front passenger side squib)
  • Center airbag sensor assembly