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DTC B1790 Center Airbag Sensor Assembly Communication Circuit Malfunction: Description

WARNING: This page is about a different car, the 2008 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

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 TROUBLE DETECTION CONDITION

DTC No. 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