AUTOMATIC HIGH BEAM SYSTEM, Diagnostic DTC:B124A and B124C

DTC Code	DTC Name
B124A	Automatic High Beam Mirror
B124C	Automatic High Beam Camera

DESCRIPTION

This DTC is stored when the main body ECU (multiplex network body ECU) detects a malfunction in the forward recognition camera.


DTC No.	Detection Item	DTC Detection Condition	Trouble Area
B124A	Automatic High Beam Mirror	Malfunction in Forward recognition camera (automatic high beam sensor)	Forward recognition camera Main body ECU (multiplex network body ECU)
B124C	Automatic High Beam Camera	Malfunction in Forward recognition camera (automatic high beam sensor)	Forward recognition camera Main body ECU (multiplex network body ECU)

WIRING DIAGRAM

CAUTION / NOTICE / HINT

Note:

Confirm that there are no CAN communication system malfunctions before performing the following inspection.
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If the main body ECU (multiplex network body ECU) is replaced, refer to Registration.
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When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle. As a result, a DTC may be stored.
If the forward recognition camera has been replaced with a new one, be sure to perform Recognition Camera/Target Position Memory and Recognition Camera Axis Adjust.

PROCEDURE

CHECK FORWARD RECOGNITION CAMERA SYSTEM

Result


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