Head Light: Adjustment

HINT:

When the work like the vehicle height may be changed is performed, for example, removal and installation of the height control sensor, or replacement of the suspension, etc., initialize the sensor, then adjust the optical axis. (See LIGHTING SYSTEM - DIAGNOSIS )

1. Place the vehicle with the following conditions.
   • The area around the headlight is not deformed.
   • The vehicle is parked on a level surface.
   • Tire inflation pressure is in the specified value.
   • A driver is in the driver's seat and the vehicle is in a state ready for driving (with a tank full).
   • The vehicle has been bounced several times.
2. Check the headlight aiming.
   1. Prepare a thick white paper.
   2. Stand the paper perpendicular to the ground at the position 9.84 ft away from the headlights.
   3. Ensure that the center line of the vehicle and the paper face forms a 90-degree angle as shown in Fig 1.
   4. Draw a horizontal line (H line) on the paper, showing where the headlights should strike.
   5. Draw a vertical line (V line) to where the center line of the vehicle is to be.
   6. Draw 2 vertical lines to where the both headlights should strike (V RH and V LH lines).
   7. Draw a horizontal line (by connecting the both low beam center marks) to where the headlights should strike (H RH and H LH lines).
   8. Take appropriate measures to prevent any influence of other lights.

      HINT:

      The H RH and H LH line of low beam is 0.4° below the horizontal line (H line) of the light axis.

   9. Start the engine.
   10. Turn the headlights ON.
   11. Check that the headlights properly strike the position shown in Fig 1.
   12. If not, adjust the lights in the vertical direction.
       Fig 1: Identifying Headlight Adjustments

       Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT:

   • As shown in Fig 2, adjust each aim of the RH and LH lights.
3. When adjusting headlight aim in the horizontal direction:
   1. Halogen Headlight:

      Using adjusting bolt A, adjust the headlight aim to within the specified range.

   2. Discharge Headlight:

      Using adjusting bolt A, adjust the headlight aim to be with in the specified range and adjusting bolt B, adjust the headlight aim to be within the specified range.

4. When adjusting headlight aim in the vertical direction:
   1. Discharge Headlight:

      Using adjusting bolt A, adjust the headlight aim to be with in the specified range and adjusting bolt B, adjust the headlight aim to be within the specified range.

      Fig 2: Adjusting Headlight Aim Of RH And LH

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002