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DTC B1790: Center Airbag Sensor Assembly Communication Circuit Malfunction: Description

The center airbag sensor communication circuit consists of the occupant classification ECU and the center airbag sensor.

DTC B1790 is recorded when a malfunction is detected in the center airbag sensor communication circuit.

DTC Code DTC Detection Condition Trouble Area
B1790 When one of following conditions is met:
  • Occupant classification ECU detects line short circuit signal, open circuit signal, short circuit to ground signal or short circuit to B+ signal in the center airbag sensor assembly communication circuit for 2 seconds
  • Center airbag sensor malfunction
  • Occupant classification ECU malfunction
  • Floor wire No. 2
  • Occupant classification ECU
  • Center airbag sensor