LH Headlamp ASSY: Adjustment

HINT:

• Perform aiming adjustment with Low-beam.
• Since the Low-beam light and the High-beam light are a unit, if aiming on either side is correct, the other side should also be correct. However, check both beams just to make sure.

1. Prepare vehicle in the following conditions.
   • Check that any damage or deformation does not exist on the body around the headlights.
   • Fuel tank is full.
   • The tire inflation pressure is at the specified level. (See INSPECTION )
   • Vehicle is parked at a level surface.
   • A person having an average weight (68 kg) sits in the driver's seat.
   • Vehicle is bounced up and down to stabilize the suspension to the normal position.
2. Prepare a thick white paper (Draw base lines).

   HINT:

   • Stand the paper perpendicular as against a wall.
   • The base lines differ for "Low-beam inspection" and "High-beam inspection".
     1. V line (Vehicle Center position)

        Draw a vertical line down the center of the paper in order to align it with the center of the vehicle.

     2. H line (Headlight height)

        Draw horizontal line across the paper at the same height from the ground as the center mark for the Low-beam lights.

     3. V LH line, V RH line (Center mark position of right and left headlights)

        Draw vertical lines, for left & right, at the same position as the center mark for the Low-beam lights.

     Fig 1: Inspections For Low And High Beam Light

     Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT:

   Follow the same procedures when adjusting the High-beam lights.

3. Check the headlight aiming.
   1. Align the paper with the center of the vehicle.
      • Make a distance of 3 m (9.84 ft) between the headlights and the paper, and put the paper against a wall with the H line being at the same height as the center mark.
      • Align the center of the vehicle with the V line on the paper, and ensure that the paper is at a 90° angle in accordance to the V line.
   2. Start the engine.
   3. Turn on the headlights and check that the aim is with in the specified valves shown in Fig 2 .
      Fig 2: Checking Headlight Aiming

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   NOTE:

   • When covering the headlights, finish it within 3 minutes. 
   • The headlight lens is made of synthetic resin, so it is easily. 

   HINT:

   When checking the aiming of the High-beam, shut off the Low-beam or disconnect the Low-beam headlight connector.

   Fig 3: Halogen Headlamp Low Beam Aiming Chart

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   Fig 4: Discharge Headlamp Low Beam Aiming Chart

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   Fig 5: Discharge Headlamp + AFS Low Beam Aiming Chart

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   Fig 6: Discharge Headlamp + AFS High Beam Aiming Chart

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Adjust the aim in the vertical direction:

   Using a screwdriver, adjust the headlight aim within the specified range by turning the aiming screw A.

   NOTE:

   • Adjust the headlight aim by turning the screw in the tightening direction. 
   • When the screw is tightened excessively, loosen it once and re-tighten it to adjust the headlight aim. 
     Fig 7: Identifying Halogen Headlamp Aiming Screw

     Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
     Fig 8: Identifying Discharge Headlamp Aiming Screw

     Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT:

   The optical axis aim moves downward when turning the screwdriver clockwise, and it moves upward when turning the screwdriver counterclockwise.