AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM(for Single Beam Headlight) INITIALIZATION

Note


  • If the headlight leveling ECU assembly has been replaced, it is the necessary synchronize the vehicle information and perform Headlight Leveling ECU Assembly Initialization. After synchronizing vehicle information, perform Headlight Leveling ECU Assembly Initialization.

  • Perform Headlight Leveling ECU Assembly Initialization (set the zero point of the height control sensor in the headlight leveling ECU assembly) after the vehicle height has changed due to replacement of suspension components or after performing operations such as removal and reinstallation or replacement of the rear height control sensor sub-assembly LH.

  • Adjust the headlight aim after perform Headlight Leveling ECU Assembly Initialization.

  • If a malfunction is detected in the automatic headlight beam level control system, initialization of headlight leveling ECU assembly will be impossible. Perform troubleshooting before initialization.


  1. SYNCHRONIZE VEHICLE INFORMATION


    1. A01OC4MC05
      *a Headlight Leveling Warning Light
      *b

      Multi-information Display

      (for Optitron Meter Type)

      (for TFT Meter Type, Movable meter ring activated)
      *c

      Multi-information Display

      (for TFT Meter Type, Movable meter ring not activated)

      When using the GTS:


      1. Turn the power switch off.

      2. Connect the GTS to the DLC3.

      3. Turn the power switch on (IG), and check that the headlight leveling warning light and "Check Headlight System" on the multi-information display continuously blink at 0.5 Hz.

      4. Enter the following menus: Body Electrical / HL AutoLeveling / Utility / ECU Information Sync.


        Body Electrical > HL AutoLeveling > Utility
        Tester Display
        ECU Information Sync

      5. Check the display on the GTS and press "Next".

      6. Check that the headlight leveling warning light and "Check Headlight System" on the multi-information display continuously blink 6 times at 2 Hz.

      7. Press "Exit" and turn the power switch off.

        Note

        After synchronizing the vehicle information, initialize the headlight leveling ECU assembly.

    2. A01OC4MC05
      *a Headlight Leveling Warning Light
      *b

      Multi-information Display

      (for Optitron Meter Type)

      (for TFT Meter Type, Movable meter ring activated)
      *c

      Multi-information Display

      (for TFT Meter Type, Movable meter ring not activated)

      When not using the GTS:


      1. Turn the power switch on (IG), and check that the headlight leveling warning light and "Check Headlight System" on the multi-information display continuously blink at 0.5 Hz.

      2. Using the light control switch, turn the low beam headlights on and off 8 times within 20 seconds after turning the power switch on (IG).

        Note

        Turn the low beam headlights on and off at intervals of less than 2 seconds.

        Tech Tips

        If this step cannot be completed within 20 seconds, turn the power switch off. Then, turn the power switch on (IG) and restart the procedure.

      3. Check that the headlight leveling warning light and "Check Headlight System" on the multi-information display continuously blink 6 times at 2 Hz.

      4. Turn the power switch off.

        Note

        After synchronizing the vehicle information, initialize the headlight leveling ECU assembly.

  2. HEADLIGHT LEVELING ECU ASSEMBLY INITIALIZATION


    1. Prepare vehicle for initialization


      1. Unload the trunk and vehicle, ensuring that the spare tire, tools and jack are in their original positions.

      2. Check that there are no occupants in the vehicle.

      3. Turn off the headlights.

      4. Stop the vehicle on a level surface and keep the vehicle height unchanged.

    2. A01OC4MC05
      *a Headlight Leveling Warning Light
      *b

      Multi-information Display

      (for Optitron Meter Type)

      (for TFT Meter Type, Movable meter ring activated)
      *c

      Multi-information Display

      (for TFT Meter Type, Movable meter ring not activated)

      Check the headlight leveling warning light and "Check Headlight System" on the multi-information display.


      1. Turn the power switch on (IG), and check the condition of the headlight leveling warning light and "Check Headlight System" on the multi-information display.

        Tech Tips

        If the headlight leveling warning light does not come on when turning the power switch on (IG), perform troubleshooting according to Problem Symptoms Table.

        Click here

      2. Initialization (When using the GTS)


        1. Turn the power switch off.

        2. Connect the GTS to the DLC3.

        3. Turn the power switch on (IG).

        4. Enter the following menus: Body Electrical / HL AutoLeveling / Utility / Height Sensor Initialization.


          Body Electrical > HL AutoLeveling > Utility
        3. Tester Display
        Height Sensor Initialization

    3. Check the display on the GTS and press "Next".

    4. A01OA2ZC04
      *a Fuel Receiver Gauge (for TFT Meter Type)
      *b Fuel Receiver Gauge (for Optitron Meter Type)

      Check the proper "Position ID" by the fuel level according to the table below.

      Tech Tips

      The "Position ID" is determined by the present fuel level as shown below.

      Fuel Level Position ID Number of Times Headlight Leveling Warning Light Blinks
      Within A range EMPTY 1
      Within B range 1/4 to over EMPTY 2
      Within C range 1/2 to over 1/4 3
      Within D range 3/4 to over 1/2 4
      Within E range FULL to over 3/4 5

    5. Select the proper "Position ID" and press "Next".

    6. Press "Exit".

    7. Check the condition of the headlight leveling warning light and "Check Headlight System" on the multi-information display.

      Tech Tips


      • *1: The number of times that the headlight leveling warning light and "Check Headlight System" on the multi-information display blink is determined by the "Position ID" selected.

      • If initialization does not finish normally, restart the initialization procedure from step (i).

    8. Check that initialization finishes normally and turn the power switch off.

    9. Initialization (When not using the GTS)


      1. Turn the power switch on (IG).

      2. A01OA2ZC04
      10. *a Fuel Receiver Gauge (for TFT Meter Type)
      *b Fuel Receiver Gauge (for Optitron Meter Type)

Check the specified number of times to turn the low beam headlights on and off.

Tech Tips

The number of times the low beam headlights need to be turned on and off is determined by the present fuel level as shown below.

Fuel Level Number of Times to Turn Low Beam Headlights On and Off
Within A range 1
Within B range 2
Within C range 3
Within D range 4
Within E range 5

  • Turn the power switch off.

  • Turn the power switch on (IG) with the light control switch off.

  • While holding the dimmer switch in the FLASH position, and turn the low beam headlights on and off 3 times using the light control switch.

    Note

    Turn the low beam headlights on and off within 5 seconds.

    Tech Tips

    If this step has been completed correctly, the headlight leveling warning light and "Check Headlight System" on the multi-information display will blink at 1 Hz.

  • Using the light control switch, turn the low beam headlights on and off the specified number of times within 20 seconds.

    Tech Tips

    Turn the low beam headlights on and off at intervals of less than 3 seconds.

  • Check the condition of the headlight leveling warning light and "Check Headlight System" on the multi-information display.

    Tech Tips


  • Check that initialization finishes normally and turn the power switch off.