DTC B1794: Open in Occupant Classification ECU Battery Positive Line: Description

This circuit consists of the occupant classification ECU and the power source circuit (battery, fuse, wire harness).

DTC B1794 is set when a malfunction is detected in the occupant classification ECU battery positive line.

HINT:

When DTC B1794 is output after switching the ignition switch off / ON / off 50 times in a row when a malfunction occurs in the power circuit for the occupant classification system, the DTC is output again when a malfunction is detected even once after being cleared, unless the normal system code is input.

DTC Code	DTC Detection Condition	Trouble Area
B1794	When one of following conditions is met: The occupant classification ECU receives the ignition switch off to ON signal 50 times in a row when a malfunction occurs in the power circuit for the occupant classification ECU (OFF to ON to OFF should be counted as 1 time). Occupant classification ECU malfunction	Battery ECU-B fuse Wire harness Occupant classification ECU