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

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

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 switching the ignition switch LOCK-ON-LOCK 50 times in a row when a malfunction occurs in the power circuit for the occupant classification system, the DTC is output again.

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

DTC DETECTION CONDITION CHART

DTC No.	DTC Detecting Condition	Trouble Area
B1794	The ignition switch is turned from LOCK to ON, hold if for 10 seconds or more, and back to LOCK again 50 times in a row when a malfunction occurs in the circuit for the occupant classification system. Occupant classification ECU malfunction	Battery ECU-B Fuse Floor wire No. 2 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 B1794 is output, perform troubleshooting for the DTC.