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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 B1630/23: Rear Airbag Sensor RH Circuit Malfunction; DTC B1632/81: Lost Communication with Rear Airbag Sensor RH; DTC B1635/24: Rear Airbag Sensor LH Circuit Malfunction; DTC B1637/82: Lost Communication with Rear Airbag Sensor LH >> Description

DTC B1630/23: Rear Airbag Sensor RH Circuit Malfunction; DTC B1632/81: Lost Communication with Rear Airbag Sensor RH; DTC B1635/24: Rear Airbag Sensor LH Circuit Malfunction; DTC B1637/82: Lost Communication with Rear Airbag Sensor LH: Description

The rear airbag sensor consists of a safing sensor, diagnostic circuit, lateral deceleration sensor, etc.

If the center airbag sensor receives signals from the lateral deceleration sensor, it determines whether the SRS should be activated.

DTC B1630, B1632, B1635 or B1637 is stored when a malfunction is detected in the rear airbag sensor circuit.

DTC Code DTC Detection Condition Trouble Area
B1630/23 Either condition is met:
  • A rear airbag sensor RH malfunction.
  • A center airbag sensor malfunction.
  • Rear airbag sensor RH
  • Center airbag sensor assembly
B1632/81 Either condition is met:
  • A rear airbag sensor RH malfunction.
  • A center airbag sensor malfunction.
  • Rear airbag sensor RH
  • Center airbag sensor assembly
B1635/24 Either condition is met:
  • A rear airbag sensor LH malfunction.
  • A center airbag sensor malfunction.
  • Rear airbag sensor LH
  • Center airbag sensor assembly
B1637/82 Either condition is met:
  • A rear airbag sensor LH malfunction.
  • A center airbag sensor malfunction.
  • Rear airbag sensor LH
  • Center airbag sensor assembly