DTC B124B: Automatic High Beam System [09/2017 - 05/2019]: Description

The main body ECU (multiplex network body ECU) determines the status of the automatic high beam system based on the automatic high beam system signal from the forward recognition camera.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
B124B	Automatic High Beam System	Malfunction in automatic high beam system	Forward recognition camera system Pre-collision system Hybrid control system Electronically controlled brake system CAN communication system Forward recognition camera Main body ECU (multiplex network body ECU)