LIGHTING SYSTEM REGISTRATION

CAUTION / NOTICE / HINT

Note

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during headlight ECU sub-assembly LH removal/installation are shown below.

Performed Work or System Condition	Necessary Procedures	Proceed to
Replacement of the headlight ECU sub-assembly LH (w/ Adaptive Variable Suspension System)	Synchronize the vehicle information	SYNCHRONIZE VEHICLE INFORMATION
Replacement of the headlight ECU sub-assembly LH (w/o Adaptive Variable Suspension System)	Synchronize the vehicle information	SYNCHRONIZE VEHICLE INFORMATION
	Perform headlight ECU sub-assembly LH initialization	HEADLIGHT ECU SUB-ASSEMBLY LH INITIALIZATION
Replacement of the rear height control sensor sub-assembly LH, removal and reinstallation of the rear height control sensor sub-assembly LH, replacement of the suspension, etc. have been performed. (w/o Adaptive Variable Suspension System)	Perform headlight ECU sub-assembly LH initialization	HEADLIGHT ECU SUB-ASSEMBLY LH INITIALIZATION
Battery terminal is disconnected and connected.	Steering sensor zero point calibration	for Stereo Camera Type: Click here for Mono Camera Type: Click here

If the steering sensor zero point calibration is not performed, the adaptive high beam system*1 and cornering lights*2 may not operate correctly.

*1: w/ Adaptive High Beam System
*2: w/ Cornering Lights

A new headlight ECU sub-assembly LH cannot operate until the vehicle information is synchronized.
After replacing the headlight ECU sub-assembly LH, it is necessary to synchronize the vehicle information and performing initialization.
Even if the headlight ECU sub-assembly RH is replaced with a new one, synchronizing the vehicle information and performing initialization are not necessary.
Adjust the headlight aim after initializing the headlight ECU sub-assembly LH.
Vehicle information registration must be performed with the main body ECU (multiplex network body ECU) and hybrid vehicle control ECU assembly connected via CAN communication.

PROCEDURE

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).
  4. Turn the GTS on.
  5. Check that "Headlight System Uninitialized Visit Your Dealer" warning message is displayed on the multi-information display.
  6. Enter the following menus: Body Electrical / AFS / Utility / ECU Information Sync.
    
    Body Electrical > AFS > Utility
    
    Tester Display
    
    ECU Information Sync
  7. Check the display on the GTS and press "Next".
  8. Check that the "Headlight System Uninitialized Visit Your Dealer" warning message on the multi-information display continuously blinks 6 times at 2 Hz.
    Tech Tips
    - If the "Headlight System Uninitialized Visit Your Dealer" warning message does not start blinking on the multi-information display, perform the procedure again.
    - If the "Headlight System Uninitialized Visit Your Dealer" warning message on the multi-information display changes from blinking to illuminated, turn the power switch off and then on (IG). If the "Headlight System Uninitialized Visit Your Dealer" warning message is displayed immediately after the power switch is turned on (IG), the headlight ECU sub-assembly LH may be malfunctioning.
    - If the "Headlight System Uninitialized Visit Your Dealer" warning message on the multi-information display changes from blinking to illuminated, turn the power switch off and then on (IG). If the "Headlight System Uninitialized Visit Your Dealer" warning message is displayed 5 seconds or more after the power switch was turned on (IG), the rear height control sensor sub-assembly LH may be malfunctioning.
  9. Press "Exit" and turn the power switch off.
    
    Note
    
    After synchronizing the vehicle information, initialize the headlight ECU sub-assembly LH.
2. When not using the GTS:
  1. Turn the power switch on (IG).
  2. Check that "Headlight System Uninitialized Visit Your Dealer" warning message is displayed on the multi-information display.
  3. Using the light control switch, turn the low beam headlights on and off 8 times within 20 seconds after turning the power switch on (IG).
    
    Note
    
    If the low beam headlights illuminate when the power switch is on (IG), shine a light on the automatic light control sensor to turn the low beam headlights off before operating the light control switch. (w/o DRL OFF Switch)
    
    Tech Tips
    
    If this step cannot be completed within 20 seconds, turn the power switch off. Then, turn the power switch on (IG) and restart the procedure.
  4. Check that the "Headlight System Uninitialized Visit Your Dealer" warning message on the multi-information display continuously blinks 6 times at 2 Hz.
    Tech Tips
    - If the "Headlight System Uninitialized Visit Your Dealer" warning message does not start blinking on the multi-information display, perform the procedure again.
    - If the "Headlight System Uninitialized Visit Your Dealer" warning message on the multi-information display changes from blinking to illuminated, turn the power switch off and then on (IG). If the "Headlight System Uninitialized Visit Your Dealer" warning message is displayed immediately after the power switch is turned on (IG), the headlight ECU sub-assembly LH may be malfunctioning.
    - If the "Headlight System Uninitialized Visit Your Dealer" warning message on the multi-information display changes from blinking to illuminated, turn the power switch off and then on (IG). If the "Headlight System Uninitialized Visit Your Dealer" warning message is displayed 5 seconds or more after the power switch was turned on (IG), the rear height control sensor sub-assembly LH may be malfunctioning.
  5. Turn the power switch off.
    
    Note
    
    After synchronizing the vehicle information, initialize the headlight ECU sub-assembly LH.

Tester Display
ECU Information Sync

HEADLIGHT ECU SUB-ASSEMBLY LH INITIALIZATION

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. Stop the vehicle on a level surface and keep the vehicle height unchanged.
4. Do not change the vehicle height while the vehicle is stopped. (The vehicle condition is stable on a level surface.)
5. The low beams are off with the light control switch in the Auto position. (If the low beams are illuminated, shine a light on the automatic light control sensor to change the system to daytime mode.)

Check the "Headlight System Uninitialized Visit Your Dealer" on the multi-information display.

Turn the power switch on (IG), and check the condition of the "Headlight System Uninitialized Visit Your Dealer" on the multi-information display.

OK
Condition	Specified Condition
The headlight ECU sub-assembly LH has been replaced with a new one.	"Headlight System Uninitialized Visit Your Dealer" on the multi-information display continuously blink 6 times at 2 Hz.
Replacement of the rear height control sensor sub-assembly LH, removal and reinstallation of the rear height control sensor sub-assembly LH, replacement of the suspension, etc. have been performed.	"Headlight System Uninitialized Visit Your Dealer" is not displayed on the multi-information display.

Initialization (When using the GTS):

Turn the power switch off.
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Turn the GTS on.
Enter the following menus: Body Electrical / AFS / Utility / Height Sensor Initialization.

Body Electrical > AFS > Utility

Tester Display

Height Sensor Initialization
Check the display on the GTS and press "Next".

Tester Display
Height Sensor Initialization

*A	Type A
*B	Type B

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 Warning Blinks
Within A range	FULL to over 3/4	5
Within B range	3/4 to over 1/2	4
Within C range	1/2 to over 1/4	3
Within D range	1/4 to over EMPTY	2
Within E range	EMPTY	1

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

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

Standard

Condition	Specified Condition
The headlight ECU sub-assembly LH has been replaced with a new one.	Blink 6 times at 2 Hz → Continuously blink N* times at 2 Hz.
Replacement of the rear height control sensor sub-assembly LH, removal and reinstallation of the rear height control sensor sub-assembly LH, replacement of the suspension, etc. have been performed.	Off → Continuously blink N* times at 2 Hz.

Tech Tips

*: The number of times that the "Headlight System Uninitialized 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 the "Headlight System Uninitialized Visit Your Dealer" warning message is displayed on the multi-information display, the headlight ECU sub-assembly LH may be malfunctioning.

Initialization (When not using the GTS):

Turn the power switch on (IG).

*A	Type A
*B	Type B

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	5
Within B range	4
Within C range	3
Within D range	2
Within E range	1

Enter initialization mode. (w/ Light Control Switch Off Position):
1. Turn the power switch off.
2. Pull the light control switch, and then operate the light control switch as follows a total of 3 times: off → HEAD → off.
  
  Note
  
  Be sure to perform all operations for the dimmer switch within 5 seconds.
  
  Tech Tips
  
  When initialization mode has been entered, "Headlight System Uninitialized Visit Your Dealer" on the multi-information display starts blinking at 1 Hz.
3. Operate the light control switch as follows N* times: off → HEAD → off.
  
  Note
  
  Perform this procedure within 20 seconds after the warning message "Headlight System Uninitialized Visit Your Dealer" flashes on the combination meter assembly at 1 Hz.
  Tech Tips
  - *: The number of times to turn the light control switch on and off (N) is determined by the fuel level of the fuel receiver gauge.
  - Be sure each dimmer switch operation is performed within 3 seconds.
Enter initialization mode. (w/o Light Control Switch Off Position)
1. Turn the power switch off.
2. Turn the light control switch is in the Auto position. Then, turn off all light by the automaticlight control system.
3. Pull the headlight dimmer switch, and then operate the headlight dimmer switch as follows a total of 3 times: Turn the low beams off → on → off.
  
  Note
  
  Be sure to perform all operations for the dimmer switch within 5 seconds after the power switch on.
  
  Tech Tips
  
  When initialization mode has been entered, "Headlight System Uninitialized Visit Your Dealer" on the multi-information display starts blinking at 1 Hz.
4. Operate the headlight dimmer switch as follows N* times: Turn the low beams off → on → off.
  Tech Tips
  - *: The number of times to turn the light control switch on and off (N) is determined by the fuel level of the fuel receiver gauge.
  - Be sure each dimmer switch operation is performed within 3 seconds.

After entering initialization mode, turn the low beam headlights from off to on and back off again N* times.

Standard

Condition	Specified Condition
The headlight ECU sub-assembly LH has been replaced with a new one.	Blink 6 times at 2 Hz → Continuously blink N* times at 2 Hz.
Replacement of the rear height control sensor sub-assembly LH, removal and reinstallation of the rear height control sensor sub-assembly LH, replacement of the suspension, etc. have been performed.	Off → Continuously blink N* times at 2 Hz.

Tech Tips

*: The number of times that the "Headlight System Uninitialized 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 the "Headlight System Uninitialized Visit Your Dealer" warning message is displayed on the multi-information display, the headlight ECU sub-assembly LH may be malfunctioning.

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