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Home >> Lexus >> 2021 >> LS 500 Base, RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Automatic High Beam System - Diagnostic Codes & Symptom Tests >> Automatic High Beam System >> Automatic High Beam System does not Operate or Operation Indicator does not Illuminate [10/2023 - ] >> Caution / Notice / Hint

Caution / Notice / Hint

NOTE:
  • First, confirm that there is no malfunction in the front radar sensor system.

    Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2023 - ]

  • Before replacing the main body ECU (multiplex network body ECU), refer to Registration.

    Refer to REGISTRATION [10/2023 - ]

  • When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
  • Before troubleshooting, make sure that the low beam headlights and high beam headlights operate normally.
  • If the windshield glass is dirty, fogged up or has an oily film, the forward recognition camera may not operate properly, affecting the operation of systems that use the forward recognition camera.
  • When replacing the forward recognition camera, 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 and a DTC may be stored.
  • When the forward recognition camera has been replaced with a new one, make sure to clear all stored vehicle control history of each system and the forward recognition camera beam axis alignment data.

    HINT: 

    Forward recognition camera beam axis alignment can be performed by using "One Time Recognition", "Driving Adjustment" or "Camera Axis Adjustment Value Write".

    One Time Recognition:

    Refer to TARGET ADJUSTMENT(ONE TIME RECOGNITION) [10/2023 - ]

    Driving Adjustment:

    Refer to DRIVING ADJUSTMENT [10/2023 - ]

    Camera Axis Adjustment Value Write:

    Refer to CAMERA AXIS ADJUSTMENT VALUE WRITE [10/2023 - ]