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DTC B1783: Rear Occupant Classification Sensor RH Circuit Malfunction: Description

The rear occupant classification sensor RH circuit consists of the occupant classification ECU and the rear occupant classification sensor RH.

DTC B1783 is recorded when a malfunction is detected in the rear occupant classification sensor RH circuit.

DTC Code DTC Detection Condition Trouble Area
B1783 When one of following conditions is met:
  • Occupant classification ECU detects line short signal, open signal, short to ground signal or short to B+ signal in the rear occupant classification sensor RH circuit for 2 seconds
  • Rear occupant classification sensor RH malfunction
  • Occupant classification ECU malfunction
  • Front seat wire RH
  • Front seat with adjuster frame assembly RH (Rear occupant classification sensor RH)
  • Occupant classification ECU