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HOMESERVICE MANUALSTOYOTA201886 GT, STANDARD TRANSREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTHEADLIGHTSLIGHTING SYSTEM (EXT) (SERVICE INFORMATION)HEADLIGHT ASSEMBLYADJUSTMENT [06/2016 - ]PROCEDURE
2018 Toyota 86 GT, Standard Trans

Adjustment [06/2016 - ]: Procedure

2018 Toyota 86 GT, Standard TransSECTION Procedure
  1. PREPARE VEHICLE FOR HEADLIGHT AIMING ADJUSTMENT 
    1. Prepare the vehicle:
      • Ensure there is no damage or deformation to the body around the headlights.
      • 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.
      • Unload the trunk and vehicle, ensuring that the spare tire, tools and jack are in their original positions.
      • Sit a person of average weight (68 kg, 150 lb) in the driver's seat.
  2. PREPARE FOR HEADLIGHT AIMING (Using a headlight aim test machine) 
    1. Adjust the headlight aim in accordance with the headlight aim test machine instructions.
  3. PREPARE FOR HEADLIGHT AIMING (Using a screen) 
    1. Prepare the vehicle:
      GTY471901Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a 7.62 or 3 m (25 or 9.84 ft.)
      *b 90°
      • 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 headlights 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 (headlight center) and the wall.
      • Make sure that the vehicle is on a level surface.
      • Position the front wheels straight ahead.
      • Bounce the vehicle up and down to settle the suspension.
        NOTE:

        A distance of 7.62 m (25 ft.) between the vehicle (headlight center) and the wall is necessary for proper aim adjustment. If sufficient space is not available, secure a distance of exactly 3 m (9.84 ft.) to allow for checking and adjustment of headlight aim. (The size of the target zone will change with the distance, so follow the instructions in the illustration.)

    2. 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.
    3. Draw a vertical line down the center of the screen (V line).
    4. Set the screen as shown in the illustration.
      GTY733631Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *A Aligning distance 7.62 m (25 ft.) *B Aligning distance 3 m (9.84 ft.)
      *a V RH Line *b V LH Line
      *c H Line *d V Line
      *e 90° *f 7.62 m (25 ft.)
      *g 3 m (9.84 ft.) - -

      HINT: 

      • Stand the screen perpendicular to the ground.
      • Align the V line on the screen with the center of the vehicle.
    5. Draw base lines (H, V LH, and V RH lines) on the screen as shown in the illustration.
      GTY694203Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT: 

      • The base lines differ for "low beam inspection" and "high beam inspection".
      • Mark the headlight center marks on the screen. If the center mark cannot be observed on the headlight, use the center of the headlight or the manufacturer's name marked on the headlight as the center mark.
      1. H Line (Headlight 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 headlight center marks of the low beam headlights.

      2. V LH Line, V RH Line (Center mark position of left-hand (LH) and right-hand (RH) headlights):

        Draw 2 vertical lines so that they intersect the H line at each center mark (aligned with the center of the low beam headlights).

        TEXT IN ILLUSTRATION

        *a V LH Line
        *b V Line
        *c V RH Line
        *d H Line
        *e Ground
  4. INSPECT HEADLIGHT AIMING 
    1. Cover the headlight or disconnect the connector of the headlight on the opposite side to prevent light from the headlight that is not being inspected from affecting the headlight aiming inspection.
      NOTE:

      Do not keep the headlight covered for more than 3 minutes. The headlight lens is made of synthetic resin, which may melt or be damaged due to excessive heat.

      HINT: 

      When checking the aim of the high beam, cover the low beam or disconnect the connector.

    2. Start the engine.
    3. Turn on the headlights and check the aiming of each beam.

      HINT: 

      Preferred position for the low beam: Matches preferred cutoff line shown in the illustration

      Preferred position for the high beam: Matches center of intensity shown in the illustration

      GTY718073Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *A Aligning distance 7.62 m (25 ft.) *B Aligning distance 3 m (9.84 ft.)
      *C Low Beam *D High Beam
      *a V LH Line *b V RH Line
      *c H Line *d Preferred Cutoff Line
      *e Center of Intensity - -

      HINT: 

      • Since the low beam light and the high beam light are a unit, if the aim on the low beam is correct, the high beam should also be correct. However, check both beams just to make sure.
      • If the alignment distance is 7.62 m (25 ft.):

        The low beam cutoff line should be within 101 mm (3.97 in.) above or below the H line as well as 101 mm (3.97 in.) left or right of the V line (SAE J599).

      • If the alignment distance is 3 m (9.84 ft.):

        The low beam cutoff line should be within 39 mm (1.56 in.) above or below the H line as well as 39 mm (1.56 in.) left or right of the H line (SAE J599).

      • If the alignment distance is 7.62 m (25 ft.):

        The high beam center of intensity should be within 101 mm (3.97 in.) above or below the H line as well as 101 mm (3.97 in.) left or right of the V LH or V RH line (SAE J599).

      • If the alignment distance is 3 m (9.84 ft.):

        The high beam center of intensity should be within 39 mm (1.56 in.) above or below the H line as well as 39 mm (1.56 in.) left or right of the V LH or V RH line (SAE J599).

  5. ADJUST HEADLIGHT AIMING 
    1. Adjust the aim vertically:
      GTY693896Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Adjust the aim of each headlight to the specified range by turning each aiming screw with a screwdriver.

      TEXT IN ILLUSTRATION

      *1 Aiming Screw
      NOTE:
      • The high beam light and low beam light aim move in the diagonal direction when aiming screw A is turned. Remember the turning direction and the number of turns of aiming screw A to correct the horizontal position in the next step.
      • 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.

      HINT: 

      • The low beam light and the high beam light are a unit. Adjusting the aim on the low beam to the correct position should also result in the high beam adjustment being correct.
      • If it is not possible to correctly adjust headlight aim, check headlight unit installation.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.