Toyota Highlander Service Manual: Adjustment

1. VEHICLE PREPARATION FOR FOGLAMP AIM ADJUSTMENT

(a) Prepare the vehicle:

• Ensure there is no damage or deformation to the body around the headlamps.
• 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.
• Place the spare tire, tools, and jack in their original position.
• Unload the trunk.
• Sit a person of average weight (68 kg, 150 lbs) in the driver's seat.

2. PREPARATION FOR FOGLAMP AIMING

(a) Prepare the vehicle according to the following conditions:

• 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 headlamps 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 and the wall.
• Place the vehicle on a level surface.
• Bounce the vehicle up and down to settle the suspension.

NOTICE: A distance of 7.62 m (25 ft) between the vehicle 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.)

(b) Prepare a piece of thick white paper to use as a screen.

(c) Draw a vertical line down the center of screen (V line).

(d) 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.

(e) Draw base lines (H line, V LH, V RH lines) on the screen as shown in the illustration.

HINT: Mark the fog lamp bulb center marks on the screen. If the center mark cannot be observed on the fog lamp, use the center of the fog lamp bulb or the manufacturer's name marked on the fog lamp as the center mark.

1.  H Line (Fog lamp 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 lamp bulb center marks of the low-beam fog lamps.
2.  V LH Line, V RH Line (Center mark position of lefthand (LH) and right-hand (RH) fog lamps): Draw two vertical lines so that they intersect the H Line at each center mark.

3. FOGLAMP AIMING INSPECTION

(a) Cover or disconnect the connector of the fog lamp on the opposite side to prevent light from the fog lamp not being inspected from affecting fog lamp aiming inspection.

(b) Start the engine.

NOTICE: Engine rpm must be 1,500 or more.

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

4. FOGLAMP AIMING ADJUSTMENT

(a) Adjust the fog lamp aim into the specified range by turning 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.

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