LIGHTING SYSTEM INITIALIZATION


  1. HEIGHT CONTROL SENSOR SIGNAL INITIALIZATION (for HID Headlight)

    Note


    • Initialize the height control sensor signal after the vehicle height changes due to replacement of the suspension or after performing such operations as removal and reinstallation or replacement of the rear height control sensor sub-assembly.

    • Initialization is also necessary when the headlight leveling ECU is replaced.

    • Adjust the headlight aim after initializing the headlight leveling ECU Click here.


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


    1. PREPARE VEHICLE FOR INITIALIZATION


      1. Unload the trunk and vehicle, and make sure 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.


        NEXT

    2. CHECK WARNING LIGHT


      1. Turn the ignition switch to ON and check the headlight beam level control system warning light.

        OK
        Condition Specified Condition
        The headlight leveling ECU is replaced with a new one. Warning light continuously blinks 6 times at 2 Hz.
        Removal and reinstallation of the headlight leveling ECU, replacement of the rear height control sensor, removal and reinstallation of the rear height control sensor, replacement of the suspension, etc. Warning light comes on for approximately 3 seconds, and then turns off (bulb check function).

        Tech Tips

        If the warning light does not come on when turning the ignition switch to ON, perform inspections and repairs according to "Problem Symptoms Table" Click here.


        NG

        GO TO PROBLEM SYMPTOMS TABLE Click here

        OK

    3. INITIALIZATION

      SST
      09843-18040

      1. A01J45CE38
        Text in Illustration
        *a Front view of DLC3

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

      2. A01J4SVE01

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

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

        Note


        • Turn the low beam headlights on and off at approximately 3-second intervals.

        • Be sure to operate the headlight dimmer switch from the outside of the vehicle.

      3. Check the warning light.

        OK
        Condition Specified Condition
        The headlight leveling ECU is replaced with a new one. Blinks 6 times at 2 Hz → Blinks N* times at 2 Hz, and then turns off.
        Removal and reinstallation of the headlight leveling ECU, replacement of the rear height control sensor, removal and reinstallation of the rear height control sensor, replacement of the suspension, etc. Off → Blinks N* times at 2 Hz, and then turns off.

        Tech Tips


        • *: 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 the calculated vehicle height is not within the acceptable range, the rear height control sensor initialization will end as an abnormal termination, and the warning indicator will blink 6 times at 2 Hz continuously. Disconnect SST from the DLC3 and turn the ignition switch off. Then restart from "Check Warning Light".

        • If initialization cannot be finished normally, check the LVL terminal circuit Click here, or perform inspections and repairs according to "Problem Symptoms Table" Click here.


        NG

        PERFORM TROUBLESHOOTING Click here

        OK
        END