LIGHTING SYSTEM INITIALIZATION

Note


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

  • Initialize the headlight swivel ECU (set the zero point of the rear height control sensor LH in the headlight swivel ECU) after the vehicle height changes due to replacement of suspension components or after performing such operations as removal and reinstallation or replacement of the rear height control sensor LH.

  • When a malfunction is detected in the AFS (w/ AFS) or automatic headlight beam level control system (w/o AFS), rear height control sensor LH signal initialization is impossible. Perform troubleshooting before initialization.


  1. CHECK VEHICLE CONDITION


    1. Check the vehicle condition.

      Result
      Result Proceed to
      The headlight swivel ECU has been replaced with a new one. A
      Removal and reinstallation of the headlight swivel ECU, replacement of the rear height control sensor LH, removal and reinstallation of the rear height control sensor LH, replacement of the suspension, etc. have been performed. B

      B

      Go to step 3
      A

  2. SYNCHRONIZE VEHICLE INFORMATION


    1. When using the GTS:


      1. Turn the engine switch off.

      2. Connect the GTS to the DLC3.

      3. Turn the engine switch on (IG), and check that the indicator light continuously blinks at 0.5 Hz.

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

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

      6. Check that the indicator light continuously blinks 6 times at 2 Hz.

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

    2. When not using the GTS:


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

        Tech Tips

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

        Note

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

      3. Check that the indicator light continuously blinks 6 times at 2 Hz.

      4. Turn the engine switch off.


      NEXT

  3. 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.


      NEXT

  4. CHECK AFS OFF INDICATOR LIGHT


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

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

      Tech Tips

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


      NG

      GO TO PROBLEM SYMPTOMS TABLE Click here

      OK

  5. INITIALIZATION

    SST
    09843-18040

    1. A01FF30E38
      Text in Illustration
      *a Front view of DLC3

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

    2. Turn the low beam headlights on and off using the headlight dimmer switch within 20 seconds after connecting the terminals.

      A01FI7AE01
      Text in Illustration
      *A w/o Follow Me Home System *B w/ Follow Me Home System

      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

      Note


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

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

    3. Check the indicator light.

      OK
      Condition Specified Condition
      The headlight swivel ECU has been replaced with a new one. Blinks 6 times at 2 Hz → Continuously blinks N* times at 2 Hz.
      Removal and reinstallation of the headlight swivel ECU, replacement of the rear height control sensor LH, removal and reinstallation of the rear height control sensor LH, replacement of the suspension, etc. have been performed. Off → Continuously blinks N* times at 2 Hz.

      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 initialization cannot be finished normally, disconnect SST from the DLC3 and turn the engine switch off. Then, restart from procedure 1.


      NG

      GO TO PROBLEM SYMPTOMS TABLE Click here

      OK
      END