AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM INITIALIZATION

Note

If the headlight control computer assembly LH has been replaced, it is the necessary synchronize the vehicle information and perform Headlight control computer assemblyLH Initialization. After synchronizing vehicle information, perform Headlight control computer assembly LH Initialization.
Initialize the headlight control computer assembly LH (set the zero point of the height control sensor in the headlight control computer assembly LH) 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 LH.
Adjust the headlight aim after initializing the headlight control computer assembly LH.
When a malfunction is detected in the automatic headlight beam level control system, rear height control sensor sub-assembly LH signal initialization is impossible. Perform troubleshooting before initialization.

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 "Headlight System Uninitialized Visit Your Dealer" on the multi-information display.
  4. Enter the following menus: Body Electrical / AFS / Utility / ECU Information Sync.
    
    Body Electrical > AFS > Utility
    
    Tester Display
    
    ECU Information Sync
  5. Check the display on the GTS and press "Next".
  6. Check that the "Headlight System Uninitialized Visit Your Dealer" on the multi-information display continuously blink 6 times at 2 Hz.
  7. Press "Exit" and turn the engine switch off.
    
    Note
    
    After synchronizing the vehicle information, initialize the headlight control computer assembly LH.
2. When not using the GTS:
  1. Turn the engine switch on (IG), and check that the "Headlight System Uninitialized Visit Your Dealer" on the multi-information display.
  2. Using the light control switch, turn the low beam headlights on and off 8 times within 20 seconds after turning the engine switch on (IG).
    Note
    - If the low beam headlights or clearance lights turn on when the engine switch is turned on (IG) on a vehicle without the light control switch OFF position, shine a light on the automatic light control sensor to change the vehicle to daytime mode.
    - 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 engine switch off. Then, turn the engine switch on (IG) and restart the procedure.
  3. Check that the "Headlight System Uninitialized Visit Your Dealer" on the multi-information display continuously blink 6 times at 2 Hz.
    Tech Tips
    - If "Headlight System Uninitialized Visit Your Dealer" on the multi-information display does not stop continuously blinking 6 times at 2 Hz, perform the procedure again from the beginning.
    - If "Headlight System Uninitialized Visit Your Dealer" on the multi-information display stops blinking and remains illuminated, the headlight control computer assembly or rear height control sensor sub-assembly may be malfunctioning.
  4. Turn the engine switch off.
    
    Note
    
    After synchronizing the vehicle information, initialize the headlight control computer assembly LH.
HEADLIGHT CONTROL COMPUTER ASSEMBLY LH 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. Check the "Headlight System Malfunction Visit Your Dealer" on the multi-information display.
  1. Turn the engine switch on (IG), and check the condition of the "Headlight System Malfunction Visit Your Dealer" on the multi-information display.
    Initialization (When using the GTS)
    1. Turn the engine switch off.
    2. Connect the GTS to the DLC3.
    3. Turn the engine switch on (IG).
    4. Enter the following menus: Body Electrical / AFS / Utility / Height Sensor Initialization.
      
      Body Electrical > AFS > Utility
    Tester Display
    
    Height Sensor Initialization

Tester Display
ECU Information Sync

Tester Display
Height Sensor Initialization

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

*A	for European Models
*a	Fuel Receiver Gauge

*A	except European Models
*a	Fuel Receiver Gauge

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 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

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

Press "Exit".

Check the condition of the "Headlight System Malfunction Visit Your Dealer" on the multi-information display.

Tech Tips

*: The number of times that the "Headlight System Malfunction Visit Your Dealer" 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).
If "Headlight System Uninitialized Visit Your Dealer" on the multi-information display stops blinking and remains illuminated, the headlight control computer assembly LH may be malfunctioning.

Check that initialization finishes normally and turn the engine switch off.

Initialization (When not using the GTS)

Turn the engine switch on (IG).

*A	for European Models
*a	Fuel Receiver Gauge

*A	except European Models
*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
Within A range	1
Within B range	2
Within C range	3
Within D range	4
Within E range	5

Turn the engine switch off.

Turn the engine switch on (IG) with low beam headlights and clearance lights off.

Note

When the low beam headlights or clearance lights are illuminated when the engine switch is turned on (IG) on a vehicle without the light control switch OFF position, flash the automatic light control sensor with electric light to change the vehicle to daytime mode.

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 System Malfunction Visit Your Dealer" 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 System Malfunction Visit Your Dealer" on the multi-information display.

Tech Tips

*: The number of times that the "Headlight System Malfunction Visit Your Dealer" on the multi-information display blink is determined by the number of times the low beam headlights are turned on and off.
If initialization does not finish normally, restart the initialization procedure from step (i).
If "Headlight System Uninitialized Visit Your Dealer" on the multi-information display stops blinking and remains illuminated, the headlight control computer assembly LH may be malfunctioning.

Check that initialization finishes normally and turn the engine switch off.