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, and wire harness).

DTC B1794 is recorded when a malfunction is detected in the occupant classification ECU or the power source circuit.

HINT:

If DTC B1794 is output after turning the ignition switch from off to on (IG) to off 50 times in a row when a malfunction occurs in the power circuit for the occupant classification system.

This DTC is output if a malfunction is detected even after being cleared unless the normal system code is input.

DTC No.	DTC Detection Condition	Trouble Area
B1794	The ignition switch is turned from off to on (IG), hold for 10 seconds or more, and turned off again 50 times in a row when a malfunction occurs in the power circuit for the occupant classification system. Occupant classification ECU malfunction	Battery ECU-B fuse Wire harness Occupant classification ECU

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 B1794 is output, perform troubleshooting for the DTC.