DTC B1782: Rear Occupant Classification Sensor LH Circuit Malfunction: Description

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

The rear occupant classification sensor LH circuit consists of the occupant classification ECU and the rear occupant classification sensor LH.

DTC B1782 is recorded when a malfunction is detected in the rear occupant classification sensor LH circuit.

DIAGNOSTIC TROUBLE CODE TABLE

DTC No.	DTC Detecting Condition	Trouble Area
B1782	Occupant classification ECU detects line short circuit signal, open circuit signal, short circuit to ground signal or short circuit to B+ signal in the rear occupant classification sensor LH circuit for 2 seconds Rear occupant classification sensor LH malfunction Occupant classification ECU malfunction	No. 1 seat wire Front seat assembly RH (Rear occupant classification sensor LH) Occupant classification ECU