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 malfunctions in the inner rear view mirror assembly.

DTC No. Detection Item DTC Detection Condition Trouble Area
B124A Automatic High Beam Mirror Malfunction in inner rear view mirror assembly Inner rear view mirror assembly
B124C Automatic High Beam Camera Malfunction in camera (inner rear view mirror assembly) Inner rear view mirror assembly

WIRING DIAGRAM

A01D5FUE02

CAUTION / NOTICE / HINT

Note


  • First perform the communication function inspections in Diagnosis System to confirm that there are no CAN communication malfunctions before performing the following inspection.

    Click here

  • Inspect the inner rear view mirror assembly before performing the following procedure.

    Click here

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Main Body > Clear DTCs

    2. Check for DTCs.

      Click here


      Body Electrical > Main Body > Trouble Codes
      Result
      Result Proceed to
      DTC B124A and B124C are not output. A
      DTC B124A or B124C is output. B

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    REPLACE INNER REAR VIEW MIRROR ASSEMBLY Click here