Lighting: Adjustments Lexus ES XV40

ADJUSTMENT

HINT

It is possible that a bulb is incorrectly installed, affecting headlight aim. Bulb installation should be considered prior to performing the adjustment procedure.

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1. VEHICLE PREPARATION FOR HEADLIGHT AIM ADJUSTMENT Prepare the vehicle according to the following conditions: Ensure there is no damage or deformation to the body around the headlights. Fill the fuel tank. Make sure that the oil is filled to the specified level. Make sure that the coolant is filled to the specified level. Inflate the tires to the appropriate pressure. Unload the trunk and vehicle, ensuring that the spare tire, tools, and jack are in their original positions. Sit a person of average weight (68 kg, 150 lb) in the driver's seat. Vehicles with height adjustable suspension should set the vehicle height to the lowest setting prior to adjusting the headlight aim. Vehicles with manually adjustable headlights should be adjusted to "0".
2. PREPARATION FOR HEADLIGHT AIMING (Using a headlight aim test machine) Adjust the headlight aim in accordance with the headlight aim test machine instructions.
3. PREPARATION FOR HEADLIGHT AIMING (Using a Screen) Prepare the vehicle: Place the vehicle in a location that is dark enough to clearly observe the cutoff line. The cutoff line is a distinct line, below which light from the headlights can be observed and above which it cannot. Place the vehicle at a 90° angle to the wall. Create a 7.62 m (25 ft) distance between the vehicle (headlight bulb center) and the wall. Make sure that the vehicle is on a level surface. Bounce the vehicle up and down to settle the suspension. NOTE: A distance of 7.62 m (25 ft) between the vehicle (headlight bulb center) and the wall is necessary for proper aim adjustment. If sufficient space is not available, secure a distance of exactly 3 m (9.84 ft) to allow for checking and adjustment of headlight aim. (The size of the target zone will change with the distance, so follow the instructions in the illustration.) Prepare a piece of thick white paper (approximately 2 m (6.6 ft) (height) x 4 m (13.1 ft) (width)) to use as a screen. Draw a vertical line down the center of the screen (V line). Set the screen as shown in the illustration. HINT: Stand the screen perpendicular to the ground. Align the V line on the screen with the center of the vehicle. Draw base lines (H, V LH, and V RH lines) on the screen as shown in the illustration. HINT: The base lines differ for "low-beam inspection" and "high-beam inspection." Mark the headlight bulb center marks on the screen. If the center mark cannot be observed on the headlight, use the center of the headlight bulb or the manufacturer's name marked on the headlight as the center mark. H Line (Headlight height): Draw a horizontal line across the screen so that it passes through the center marks. The H line should be at the same height as the headlight bulb center marks of the low-beam headlights. V LH Line, V RH Line (Center mark position of left-hand (LH) and right-hand (RH) headlights): Draw two vertical lines so that they intersect the H line at each center mark (aligned with the center of the low-beam headlight bulbs).
4. HEADLIGHT AIMING INSPECTION Cover the headlight or disconnect the connector of the headlight on the opposite side to prevent light from the headlight that is not being inspected from affecting the headlight aiming inspection. NOTE: Do not keep the headlight covered for more than 3 minutes. The headlight lens is made of synthetic resin, which may melt or be damaged due to excessive heat. HINT: When checking the aim of the high-beam, cover the low-beam or disconnect the connector. Start the engine. Turn on the headlight and check if the cutoff line matches the preferred cutoff line in the following illustration. HINT: Since the low beam light and the high beam light on each side have separate reflectors, it is necessary to check and adjust the aim separately for both. If the alignment distance is 7.62 m (25 ft): The cutoff line should be within 101.6 mm (4 in.) above or below the H line as well as 101.6 mm (4 in.) left or right of the V line with low-beam (SAE J599). If the alignment distance is 3 m (9.84 ft): The low beam cutoff line should be within 40 mm (1.57 in.) above or below the H line as well as 40 mm (1.57 in.) left or right of the V line (SAE J599). If the alignment distance is 7.62 m (25 ft): The high beam center of intensity should be within 101.6 mm (4 in.) above or below the H line as well as 101.6 mm (4 in.) left or right of the V line (SAE J599). If the alignment distance is 3 m (9.84 ft): The high beam center of intensity should be within 40 mm (1.57 in.) above or below the H line as well as 40 mm (1.57 in.) left or right of the V line (SAE J599). If the alignment distance is 7.62 m (25 ft): The low beam cutoff line should be 66 mm (2.6 in.) below the H line (preferred cutoff line target). If the alignment distance is 3 m (9.84 ft): The low beam cutoff line should be 26 mm (1.02 in.) below the H line (preferred cutoff line target).
5. HEADLIGHT AIMING ADJUSTMENT Adjust the aim vertically: Adjust the headlight aim into the specified range by turning the aiming screw with a screwdriver. NOTE: The final turn of the aiming screw should be made in the clockwise direction. If the screw is tightened excessively, loosen it and then retighten it, so that the final turn of the screw is in the clockwise direction. HINT: The low-beam light and the high-beam light are a unit. Adjusting the aim on the low-beam to the correct position should also result in the high-beam adjustment being correct. If it is not possible to correctly adjust headlight aim, check bulb, headlight unit, and headlight unit reflector installation. The headlight aim moves up when turning the aiming screw clockwise, and moves down when turning the aiming screw counterclockwise.

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1. INSTALL HEADLIGHT CORD (for HID Headlight) Install the headlight cord with the screw.
2. INSTALL HEADLIGHT SWIVEL MOTOR (for HID Headlight) Install the headlight swivel motor with the 3 screws. Connect the connector.
3. INSTALL HEADLIGHT GASKET (for HID Headlight) Install a new headlight gasket. NOTE: After the headlight gasket is removed, be sure to replace it with a new one. Failure to do this may cause water ingress.
4. INSTALL LIGHT CONTROL ECU SUB-ASSEMBLY (for HID Headlight) Connect the connector. Install the headlight control ECU sub-assembly with the 4 screws.
5. INSTALL HEADLIGHT PROTECTOR (for HID Headlight) Install the headlight protector with the screw.
6. INSTALL HEADLIGHT LEVELING MOTOR BASE PACKING (for HID Headlight) Install a new headlight leveling motor base packing. NOTE: After the headlight leveling motor base packing is removed, be sure to replace it with a new one. Failure to do this may cause water ingress.
7. INSTALL HEADLIGHT LEVELING MOTOR (for HID Headlight) Engage the tip of the headlight leveling motor with the reflector. Turn the headlight leveling motor to install it.
8. INSTALL CLEARANCE LIGHT BULB Install the clearance light bulb to the clearance light socket. Turn the clearance light bulb and clearance light socket in the direction indicated by the arrow and install them as a unit.
9. INSTALL FRONT TURN SIGNAL LIGHT BULB Install the front turn signal light bulb to the front turn signal light socket. Turn the front turn signal light bulb and front turn signal light socket in the direction indicated by the arrow and install them as a unit.
10. INSTALL DISCHARGE HEADLIGHT BULB (for HID Headlight) Lock the set spring to install the discharge headlight bulb as shown in the illustration. Turn the socket of the light control ECU sub-assembly in the direction indicated by the arrow to connect the socket.
11. INSTALL HEADLIGHT SOCKET COVER (for HID Headlight) Install the headlight socket cover as shown in the illustration.
12. INSTALL NO. 1 HEADLIGHT BULB (for Halogen Headlight) Lock the set spring to install the No. 1 headlight bulb as shown in the illustration.
13. INSTALL ADAPTER ASSEMBLY (for Halogen Headlight) Install the adapter assembly as shown in the illustration.
14. INSTALL NO. 2 HEADLIGHT BULB Install the No. 2 headlight bulb as shown in the illustration.
15. INSTALL FRONT BUMPER SIDE SUPPORT Install the front bumper side support with the 3 screws.

HINT

It is possible that a bulb is incorrectly installed, affecting fog light aim. Bulb installation should be considered prior to performing the adjustment procedure.

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1. VEHICLE PREPARATION FOR FOG LIGHT AIM ADJUSTMENT Prepare the vehicle according to the following conditions: Ensure there is no damage or deformation to the body around the fog lights. Fill the fuel tank. Make sure that the oil is filled to the specified level. Make sure that the coolant is filled to the specified level. Inflate the tires to the appropriate pressure. Unload the trunk and vehicle, ensuring that the spare tire, tools, and jack are in their original positions. Sit a person of average weight (68 kg, 150 lb) in the driver's seat. Vehicles with height adjustable suspension should set the vehicle height to the lowest setting prior to adjusting the fog light aim.
2. PREPARATION FOR FOG LIGHT AIMING Prepare the vehicle: Place the vehicle in a location that is dark enough to clearly observe the cutoff line. The cutoff line is a distinct line, below which light from the fog lights can be observed and above which it cannot. Place the vehicle at a 90° angle to the wall. Create a 7.62 m (25 ft) distance between the vehicle (fog light bulb center) and the wall. Make sure that the vehicle is on a level surface. Bounce the vehicle up and down to settle the suspension. NOTE: A distance of 7.62 m (25 ft) between the vehicle (fog light bulb center) and the wall is necessary for proper aim adjustment. If unavailable, secure a distance of exactly 3 m (9.84 ft) for check and adjustment. (The target zone will change with the distance, so follow the instructions in the illustration.) Prepare a piece of thick white paper (approximately 2 m (6,6 ft) (height) x 4 m (13.1 ft) (width)) to use as a screen. Draw a vertical line down the center of screen (V line). Set the screen as shown in the illustration. HINT: Stand the screen perpendicular to the ground. Align the V line on the screen with the center of the vehicle. Draw base lines (H, V LH, and V RH lines) on the screen as shown in the illustration. HINT: Mark the fog light bulb center marks on the screen. If the center mark cannot be observed on the fog light, use the center of the fog light bulb or the manufacturer's name marked on the fog light as the center mark. H Line (Fog light height): Draw a horizontal line across the screen so that it passes through the center marks. The H line should be at the same height as the fog light bulb center marks of the low-beam fog lights. V LH Line, V RH Line (Center mark position of left-hand (LH) and right-hand (RH) fog lights): Draw two vertical lines so that they intersect the H line at each center mark.
3. FOG LIGHT AIMING INSPECTION Cover the fog light or disconnect the connector of the fog light on the opposite side to prevent light from the fog light that is not being inspected from affecting the fog light aiming inspection. NOTE: Do not keep the fog light covered for more than 3 minutes. The fog light lens is made of synthetic resin, which may melt or be damaged due to excessive heat. Start the engine. Turn on the fog light and check if the cut off line falls within the specified area in the following illustration.
4. FOG LIGHT AIMING ADJUSTMENT Adjust the aim vertically: Adjust the aim of each fog light to the specified range by turning each aiming screw with a screwdriver. NOTE: The final turn of the aiming screw should be made in the clockwise direction. If the screw is tightened excessively, loosen it and then retighten it, so that the final turn of the screw is in the clockwise direction. HINT: If it is not possible to correctly adjust fog light aim, check bulb, fog light unit, and fog light unit reflector installation.

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1. INSTALL FOG LIGHT BULB Install the fog light bulb as shown in the illustration.