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 25m (82 ft) distance between the vehicle (fog light bulb center) and the wall.

Place the vehicle on a level surface.

Bounce the vehicle up and down to settle the suspension.

NOTICE:

A distance of 25 m (82 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.

Ultrasonic Sensor - Installation. PARK ASSIST / MONITORING. Lexus IS250 IS220d GSE20 ALE20

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 line, V LH, 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.

23. 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 not being inspected from affecting fog light aiming inspection.

Start the engine.

Turn on the fog light and make sure that the cutoff line falls within the specified area, as shown in the illustration.

Ultrasonic Sensor - Installation. PARK ASSIST / MONITORING. Lexus IS250 IS220d GSE20 ALE20

24. FOG LIGHT AIMING ADJUSTMENT

Adjust the fog light aim into the specified range by turning the aiming screw with a screwdriver.

NOTICE:

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.

LEXUS IS250, IS220d / GSE20 ALE20

PARK ASSIST / MONITORING

Lexus IS250 IS220d GSE20 ALE20

ULTRASONIC SENSOR