DTC B165B: 2nd Seat Seat Belt Buckle Switch (RH) [10/2020 - 10/2023]: Description

The seat belt buckle switch RH circuit consists of the airbag ECU assembly, pedestrian detection ECU assembly and rear seat inner belt assembly RH.

DTC B165B is stored when a malfunction is detected in the seat belt buckle switch RH circuit.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Warning Indicate	Test Mode / Check Mode
B165B	2nd Seat Seat Belt Buckle Switch (RH)	One of the following conditions is met: The airbag ECU assembly detects a line short circuit signal, open circuit signal, short circuit to ground signal or short circuit to B+ signal in the seat belt buckle switch RH circuit for 2 seconds. A rear seat inner belt assembly RH. An airbag ECU assembly malfunction.	Floor wire Rear seat wire RH Instrument panel wire Rear seat inner with center belt assembly RH1 Rear seat inner belt assembly RH2 Airbag ECU assembly	Comes on	Not applicable