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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 classification ECU and the occupant classification sensors.

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

DTC No. DTC Detecting Condition Trouble Area
B1793
  • The occupant classification ECU receives a line short circuit signal, an open circuit signal, a short circuit to ground signal or a short circuit to B+ signal in the occupant classification sensor power supply circuit for 2 seconds.
  • Occupant classification ECU malfunction
  • Front seat assembly RH (Occupant classification sensors)
  • Front seat wire RH
  • Occupant classification ECU

HINT: 

When DTC B1650/32 is detected as a result of troubleshooting for the AIRBAG SYSTEM, check the DTCs stored in the occupant classification ECU. When DTC B1793 is output, perform troubleshooting for the DTC.