LIGHTING SYSTEM, Diagnostic DTC:B124A

DTC Code DTC Name
B124A Automatic High Beam Mirror

DESCRIPTION

The DTC is stored when the main body ECU (driver side junction block assembly) detects malfunctions in the inner rear view mirror assembly.

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

WIRING DIAGRAM

A01EKXHE06

INSPECTION PROCEDURE

Note

First perform the communication function inspections in How to Proceed with Troubleshooting to confirm that there are no CAN communication malfunctions before troubleshooting this symptom.

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      OK
      DTC B124A is not output.

    NG

    REPLACE INNER REAR VIEW MIRROR ASSEMBLY Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here