Tools:
- Long blade screwdriver
Parts and consumables:
- Thick white paper sheet approx. 2 m
- Roulette
- Chalk or marker
Note:
If the direction of the headlamp is incorrect, the lamp may be incorrectly installed. Therefore, before making adjustments, check the lamp setting.
Preparing the car for the procedure for adjusting the direction of headlights of Toyota Corolla
1. Make sure that there is no damage or deformation to the body near the headlights.
2. Fill the fuel tank.
3. Make sure the oil is filled to the specified level.
4. Make sure the coolant is filled to the specified level.
5. Inflate the tires until the required pressure is reached.
6. Unload the luggage compartment and vehicle. Make sure the spare wheel, tools and jack are in their original positions.
7. A medium weight (75 kg, 165 lb) person must be in the driver's seat.
8. For vehicles with adjustable height suspension, before adjusting the direction of headlights of Toyota Corolla, set the minimum suspension height.
9. For vehicles with manual headlights, set "0".
Preparing the car for adjusting the direction of headlights of Toyota Corolla
1. Place the vehicle in the following position.
2. Position the vehicle in a location dark enough to clearly see the boundary line. The boundary line is the line below which the headlights can be observed and above which they cannot.
3. Position the vehicle at a 90 ° angle to the wall.
4. Position the vehicle so that the distance between it (the center of the headlight bulb) and the wall is 25 m (82 ft).
5. Make sure the vehicle is on a level surface.
6. Rock the vehicle up and down to stabilize the suspension.
NOTE:
To properly adjust the direction of the headlights on a Toyota Corolla , the distance between the vehicle (center of the headlight bulb) and the wall must be 25 m (82 ft). If there is not enough space, the headlights should be checked and adjusted at a distance of exactly 3 m (9.84 ft). (The size of the target area changes with distance, so follow the directions in the illustration.)
7. Prepare a sheet of thick white paper (approximately 2 m (6.6 feet) (length) x 4 m (13.1 feet) (width)) to use as a screen.
8. Draw a vertical line across the center of the screen.
9. Install the shield as shown in the figure.
NOTE:
Place the screen perpendicular to the ground.
10. Align the vertical line on the screen with the center line of the vehicle.
11. Draw major axes (horizontal, right and left vertical lines) on the screen as shown.
NOTE:
The center lines for the low beam test and the high beam test are different.
12. Place the center marks of the headlights on the screen. If no center marks are visible on the headlights, use the center of the headlight bulb or the manufacturer's name on the headlamp as the center mark.
Horizontal line (headlight height):
13. Draw a horizontal line on the screen so that it passes through the center marks. The horizontal line must be at the same height as the center marks of the dipped-beam headlamps.
14. Left and right vertical lines (to mark the center points of the left and right headlights).
15. Draw two vertical lines so that they intersect the horizontal line at the center marks (coincide with the centers of the dipped beam headlamps).
Toyota Corolla headlight direction check
1. Cover the headlamp on the opposite side or disconnect its connector so that the light from a headlamp that is not being tested does not interfere with the headlamp direction check.
WARNING:
Do not disconnect the high voltage connector of the discharge lamp while performing this light direction test.
Do not leave the headlamp closed for more than 3 minutes. The headlight diffusers are made of synthetic plastic and can easily melt or be damaged by excessive heat.
When checking the direction of the high beam, close the low beam headlamps or disconnect the connector .
2. Start the engine.
3. Turn on the headlights and check if the boundary line matches the preferred boundary line shown in the following figure.
NOTE:
Since the dipped beam headlamps and the main beam headlamp are one unit, if the dipped beam headlamps are adjusted correctly, then the high beam headlamps must also be adjusted. However, to be sure, both beams should be checked.
If the adjustment distance is 25 m (82 ft): The dipped beam boundary line should be 48–698 mm (1.9–27.5 inches) below the horizontal line.
If the adjustment distance is 3 m (9.84 ft): The dipped beam boundary line should be 6–84 mm (0.2–3.3 in.) Below the horizontal line.
If the adjustment distance is 25 m (82 ft): The preferred dipped beam boundary line is 249 mm (9.8 in.) Below the horizontal line.
If the adjustment distance is 3 m (9.84 ft): The preferred dipped beam boundary line is 30 mm (1.2 in.) Below the horizontal line.
Toyota Corolla Headlight Direction Adjustment
Adjusting the vertical direction:
Using a screwdriver, adjust the direction of light of each headlamp to the specified range using adjustment screw A.
NOTE:
At the final stage, the headlamp adjustment screw should be turned clockwise. If the screw is turned too much, loosen and tighten it again so that the screw turns clockwise in the final step.
Since the dipped beam headlamps and the main beam headlamp are one unit, if the dipped beam headlamps are adjusted correctly, then the high beam headlamps must also be adjusted. However, to be sure, both beams should be checked.
If it is not possible to correctly align the direction of the headlights, check the installation of the lamps, headlight assemblies and headlight reflectors.
Turning the adjustment screw clockwise shifts the direction of the headlights up, and turning the screw counterclockwise - down.
Horizontal Direction Adjustment:
Use a screwdriver to adjust the direction of light of each headlamp to the specified range using adjustment screw B.
NOTE:
At the final stage, the headlamp adjustment screw should be turned clockwise. If the screw is overtightened, loosen and tighten it again so that the screw turns clockwise in the final step.
The headlights of the low and high beam are one unit. Correct adjustment of the direction of the dipped beam should lead to the correct setting of the direction of the main beam.
If it is not possible to correctly align the direction of the headlights, check the installation of the lamps, headlight assemblies and headlight reflectors.
Source: http://techdoc0608.corolla.su/rm04f1ru/repair2/html/frame_rm0000011mi01bx.html