DTC B1793: Occupant Classification Sensor Power Supply Circuit Malfunction [12/2012 - ]: Description

The occupant classification sensor power supply circuit consists of the occupant detection ECU and rear occupant classification sensor LH and RH.

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

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
B1793	Occupant Classification Sensor Power Supply Circuit Malfunction	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 rear occupant classification sensor power supply circuit for 2 seconds. Open circuit in the rear occupant classification sensor wire harness. Occupant detection ECU malfunction.	Separate type front seat cushion spring assembly (Rear occupant classification sensor LH, RH) Front seat wire RH Occupant detection ECU

HINT:

When DTC B1650/32 is stored as a result of troubleshooting the airbag system, perform troubleshooting for DTC B1793 of the occupant classification system.
Use the Techstream to check for DTCs of the occupant detection ECU, otherwise the DTCs cannot be read.