AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM INITIALIZATION

Note


  • Synchronize the vehicle information when the headlight swivel ECU assembly is replaced with a new one.

  • Initialize the headlight swivel ECU assembly when the headlight swivel ECU assembly is replaced.

  • Initialize the headlight swivel ECU assembly (set the zero point of the rear height control sensor sub-assembly in the headlight swivel ECU assembly) after the vehicle height changes 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.

  • Adjust the headlight aim after initializing the headlight swivel ECU assembly.

    Click here

  • When a malfunction is detected in the automatic headlight beam level control system, rear height control sensor sub-assembly signal initialization is impossible. Perform troubleshooting before initialization.


  1. SYNCHRONIZE VEHICLE INFORMATION


    1. 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 warning message continuously blinks at 0.5 Hz.

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


        Body Electrical > AFS > Utility
        Tester Display
        ECU Information Sync

      5. Check what is displayed on the screen of the GTS and press "Next".

      6. Check that the warning message continuously blinks 6 times at 2 Hz.

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

        Note

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

    2. When not using the GTS:


      1. Turn the power switch on (IG), and check that the warning message continuously blinks at 0.5 Hz.

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

        Note

        Turn the low beam headlights on and off at less than 2-second intervals.

        Tech Tips

        If the light control switch operation cannot be finished within 20 seconds, turn the power switch off. Then, turn the power switch on (IG) and restart again.

      3. Check that the warning message continuously blinks 6 times at 2 Hz.

      4. Turn the power switch off.

        Note

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

  2. HEADLIGHT SWIVEL ECU ASSEMBLY INITIALIZATION PROCEDURE


    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. Check warning message


      1. Turn the power switch on (IG), and check the warning message.

      2. Initialization


        1. Turn the power switch on (IG).

        2. A01KT4CC01
        3. *a Fuel Receiver Gauge

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
Fuel level is within A range. 1
Fuel level is within B range. 2
Fuel level is within C range. 3
Fuel level is within D range. 4
Fuel level is within E range. 5

  • Turn the power switch off.

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

  • Hold the dimmer switch in the high flash position, and turn the taillights on and off using the light control switch 3 times.

    Note

    Turn the taillights on and off within 5 seconds

    Tech Tips

    When the switch operation is normal, the warning display blinks at 1 Hz.

  • Turn the low beam the specified number of times headlights on and off using the light control switch the specified number of time within 20 seconds.

    Tech Tips

    Turn the low beam headlights on and off at less than 3-second intervals.

  • Check the warning display on the multi-information display.

    Tech Tips


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