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

E270527E08

CAUTION / NOTICE / HINT

Note:

  • Confirm that there are no CAN communication system malfunctions before performing the following inspection.

    for LHD:

    Click here

    for RHD:

    Click here

  • If the main body ECU (multiplex network body ECU) is replaced, refer to Registration.

    Click here

  • 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

  1. CHECK FORWARD RECOGNITION CAMERA SYSTEM

    1. Check the forward recognition camera system.

      Click here

    Result

    Proceed to

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    END