DTC B1771: Passenger Side Buckle Switch Circuit Malfunction [08/2015 - ]: Description

The passenger side buckle switch circuit consists of the occupant detection ECU and front seat inner belt assembly RH (passenger side buckle switch).

DTC B1771 is stored when a malfunction is detected in the passenger side buckle switch circuit.

DTC No.	DTC Detection Condition	Trouble Area
B1771	The occupant detection ECU detects a line short, short to ground or B+, or an open in the passenger side buckle switch circuit. Passenger side buckle switch malfunction Occupant detection ECU malfunction	Front seat wire RH Front seat inner belt assembly RH (Passenger side buckle switch) Occupant detection ECU