DTC B1793 Occupant Classification Sensor Power Supply Circuit Malfunction: Description

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

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 DETECTING CONDITION CHART

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