AUTOMATIC HIGH BEAM SYSTEM, Diagnostic DTC:B124A, B124C

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

DESCRIPTION

These DTCs are stored when the main body ECU (multiplex network body ECU) detects a malfunction in the inner rear view mirror assembly (automatic high beam sensor).

DTC No. DTC Detection Condition Trouble Area
B124A Malfunction in inner rear view mirror assembly Inner rear view mirror assembly
B124C Malfunction in camera (inner rear view mirror assembly) Inner rear view mirror assembly

WIRING DIAGRAM

A01EU36E03

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      OK
      DTC B124A or B124C is not output.

    NG

    REPLACE INNER REAR VIEW MIRROR ASSEMBLY Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here