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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 B1820/55: Short in Side Squib RH Circuit; DTC B1821/55: Open in Side Squib RH Circuit; DTC B1822/55: Short to GND in Side Squib RH Circuit; DTC B1823/55: Short to B+ in Side Squib RH Circuit >> Description

DTC B1820/55: Short in Side Squib RH Circuit; DTC B1821/55: Open in Side Squib RH Circuit; DTC B1822/55: Short to GND in Side Squib RH Circuit; DTC B1823/55: Short to B+ in Side Squib RH Circuit: Description

The side squib RH circuit consists of the center airbag sensor and front seat airbag RH.

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

These DTCs are stored when a malfunction is detected in the side squib RH circuit.

DTC Code DTC Detection Condition Trouble Area
B1820/55 One of the following conditions is met:
  • The center airbag sensor detects a line short circuit signal 5 times in the side squib RH circuit during the primary check.
  • A side squib RH malfunction.
  • A center airbag sensor malfunction.
  • No. 2 floor wire
  • Front seat airbag assembly RH (Side squib RH)
  • Center airbag sensor assembly
B1821/55 One of the following conditions is met:
  • The center airbag sensor detects an open circuit signal in the side squib RH circuit for 2 seconds.
  • A side squib RH malfunction.
  • A center airbag sensor malfunction.
  • No. 2 floor wire
  • Front seat airbag assembly RH (Side squib RH)
  • Center airbag sensor assembly
B1822/55 One of the following conditions is met:
  • The center airbag sensor detects a short circuit to ground signal in the side squib RH circuit for 0.5 seconds.
  • A side squib RH malfunction.
  • A center airbag sensor malfunction.
  • No. 2 floor wire
  • Front seat airbag assembly RH (Side squib RH)
  • Center airbag sensor assembly
B1823/55 One of the following conditions is met:
  • The center airbag sensor detects a short circuit to B+ signal in the side squib RH circuit for 0.5 seconds.
  • A side squib RH malfunction.
  • A center airbag sensor malfunction.
  • No. 2 floor wire
  • Front seat airbag assembly RH (Side squib RH)
  • Center airbag sensor assembly