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AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM INITIALIZATION

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Note:

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

  • Initialize the headlight leveling ECU assembly (set the zero point of the height control sensor in the headlight leveling 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 leveling ECU assembly (Click here).

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


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  1. 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.

      Result
      Proceed to
      NEXT

  2. 2.CHECK HEADLIGHT LEVELING INDICATOR LIGHT


    1. Turn the power switch on (IG), and check the indicator light.

      OK
      Condition Specified Condition
      The headlight leveling ECU assembly has been replaced with a new one. Indicator light repeatedly blinks 6 times at 2 Hz.
      Replacement of the rear height control sensor sub-assembly, removal and reinstallation of the rear height control sensor sub-assembly, replacement of the suspension, etc. have been performed. Indicator light comes on for approximately 3 seconds, and then goes off (bulb check function).
      Tip:

      If the indicator light does not come on when turning the power switch on (IG), inspect and repair it according to Problem Symptoms Table (Click here).

      Result
      Result Proceed to
      OK GO TO STEP
      NG GO TO PROBLEM SYMPTOMS TABLE

  3. 3.INITIALIZATION


    1. A0005LWE45

      Connect SST to terminals 4 (CG) and 8 (LVL) of the DLC3.

    2. 09843-18040
    3. A0006K0E01

      Turn the low beam headlights on and off using the light control switch within 20 seconds after connecting the terminals.

      Tip:

      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
      Note:

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

      • Be sure to operate the light control switch from outside the vehicle.

    4. Check the indicator light.

      OK
      Condition Specified Condition
      The headlight leveling ECU assembly has been replaced with a new one. Blinks 6 times at 2 Hz → Repeatedly blinks N*1 times at 2 Hz.
      Replacement of the rear height control sensor sub-assembly, removal and reinstallation of the rear height control sensor sub-assembly, replacement of the suspension, etc. have been performed. Off → Repeatedly blinks N*1 times at 2 Hz.
      Tip:

      • *1: The number of times that the indicator blinks is determined by the number of times the low beam headlights are turned on and off.

      • If initialization does not finish normally, disconnect SST from the DLC3 and turn the power switch off. Then, restart initialization from step 1.

      Result
      Result Proceed to
      OK TURN POWER SWITCH OFF (END)
      NG GO TO PROBLEM SYMPTOMS TABLE