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LIGHTING SYSTEM, Diagnostic DTC:B124A, B124C

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

This DTC is stored when the main body ECU detects malfunctions in the inner rear view mirror assembly.

DTC Code DTC Detection Condition Trouble Area
B124A Malfunction in inner rear view mirror Inner rear view mirror assembly
B124C Malfunction in inner rear view mirror camera portion Inner rear view mirror assembly
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WIRING DIAGRAM

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CAUTION / NOTICE / HINT

Note:

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

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PROCEDURE


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    CHECK FOR DTC


    1. Clear the DTCs (Click here).

    2. Check for DTCs (Click here).

      OK
      DTC B124A or B124C is not output.

    • OK

      USE SIMULATION METHOD TO CHECK (Click here)

    • NG

      REPLACE INNER REAR VIEW MIRROR ASSEMBLY (Click here)