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DTC B1793: Occupant Classification Sensor Power Supply Circuit Malfunction: Description

The occupant classification sensor power supply circuit consists of the occupant detection ECU and occupant classification sensors.

DTC B1793 is stored when a malfunction is detected in the occupant classification sensor power supply circuit.

DTC Code DTC Detection Condition Trouble Area
B1793 One of the following conditions is met:
  • Occupant detection ECU detects a line short circuit signal, open circuit signal, short circuit to ground signal or short circuit to +B signal in the occupant classification sensor power supply circuit for 2 seconds.
  • Open circuit in the occupant classification sensor wire harness.
  • Occupant detection ECU malfunction.
  • Front seat assembly RH (Occupant classification sensors)
  • Front seat wire RH
  • Occupant detection ECU

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