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Home >> Lexus >> 2021 >> ES 300h Base >> Repair and Diagnosis >> Suspension >> Wheel Alignment >> Wheel Alignment - Service Information >> Front Wheel Alignment >> Adjustment [06/2018 - 08/2020] >> Procedure
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Adjustment [06/2018 - 08/2020]: Procedure

  1. INSPECT TIRES 

    Refer to PROCEDURE - Step 1

  2. MEASURE VEHICLE HEIGHT 
    NOTE:
    • Before inspecting the wheel alignment, adjust the vehicle height to the specified value.
    • Be sure to perform measurement on a level surface.
    • If it is necessary to go under the vehicle for measurement, confirm that the parking brake is applied and the vehicle is secured with chocks.
    • Inspect while the vehicle is unloaded.
    • The standard value shown here is a value that is used for performing a wheel alignment and does not indicate the height of an actual vehicle.
    1. Bounce the vehicle up and down at the corners to stabilize the suspension.
    2. Measure the vehicle height.

      Measurement Points: 

      1. A: Ground clearance of front wheel center
      1. B: Ground clearance of center of bolt head of front lower No. 2 suspension arm bushing (rear bolt of front lower No. 1 suspension arm sub-assembly).
      1. C: Ground clearance of rear wheel center
      1. D: Ground clearance of center of bolt head of rear No. 2 suspension arm assembly and rear suspension member sub-assembly.

      Vehicle Height (Unloaded Vehicle)

      Engine Front A - B Rear C - D
      2GR-FKS 150 mm (5.91 in.) 51 mm (2.01 in.)
      A25A-FXS 153 mm (6.02 in.) 50 mm (1.97 in.)
      GTY781839Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSPECT CAMBER, CASTER AND STEERING AXIS INCLINATION 
    NOTE:

    Inspect while the vehicle is unloaded.

    1. Install a camber-caster-kingpin gauge and place the front wheels on the center of a turning radius gauge.
      GTY447072Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Turning Radius Gauge
      *b Camber-caster-kingpin Gauge
    2. Inspect the camber, caster and steering axis inclination.

      Camber (Unloaded Vehicle)

      Engine Camber Inclination Right-left Difference
      2GR-FKS -0°19' +/- 0°45' (-0.32° +/- 0.75°) 0°45' (0.75°) or less
      A25A-FXS -0°23' +/- 0°45' (-0.38° +/- 0.75°)

      Caster (Unloaded Vehicle)

      Engine Tire Size Caster Inclination Right-left Difference
      2GR-FKS 215/55R17 5°08' +/- 0°45' (5.13° +/- 0.75°) 0°45' (0.75°) or less
      235/45R18 5°07' +/- 0°45' (5.12° +/- 0.75°)
      235/40R19 5°09' +/- 0°45' (5.15° +/- 0.75°)
      A25A-FXS 215/55R17
      235/45R18      		 5°09' +/- 0°45' (5.15° +/- 0.75°)

      Steering Axis Inclination (Unloaded Vehicle)

      Engine Steering Axis Inclination Reference
      2GR-FKS 12°53' (12.88°)
      A25A-FXS 13°02' (13.03°)
  4. ADJUST CAMBER 
    NOTE:

    Inspect toe-in after the camber has been adjusted.

    1. Remove the front wheel.

      Refer to PROCEDURE - Step 1

    2. Remove the 2 nuts on the lower side of the front shock absorber assembly.
      NOTE:

      Keep the bolts inserted.

      GTY762873Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the top and bottom bolts one at a time and confirm that the steering knuckle can move freely in the front shock absorber assembly.

      HINT: 

      • Reinstall each bolt after removing it and confirming steering knuckle movement.
      • If the steering knuckle does not move freely in the front shock absorber assembly, clean the contact surfaces of the front shock absorber assembly and the steering knuckle.
    4. Temporarily install the 2 nuts. (Step A)
    5. Fully push or pull the front axle hub in the direction of the required adjustment. (Step B)
      GTY442036Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Tighten the 2 nuts.

      Torque: 290 N.m (2957 kgf/cm, 214 ft.lbf) 

      NOTE:

      Keep the bolts from rotating when tightening the nuts.

      GTY762873Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. Install the front wheel.

      Refer to PROCEDURE - Step 1

    8. Bounce the vehicle up and down at the corners to stabilize the suspension.
    9. Check the camber.

      Camber (Unloaded Vehicle)

      Engine Camber Inclination Right-left Difference
      2GR-FKS -0°19' +/- 0°45' (-0.32° +/- 0.75°) 0°45' (0.75°) or less
      A25A-FXS -0°23' +/- 0°45' (-0.38° +/- 0.75°)
      1. If the measured value is not within the specification, calculate the required adjustment amount using the formula below.

        Camber adjustment amount = center of the specified range - measured value

        Check the combination of the installed bolts. Select appropriate bolts from the tables below to adjust the camber to the specified values.

        HINT: 

        Try to adjust the camber to the center of the specified values.

        To move the axle hub toward (+) in step B To move the axle hub toward (-) in step B
        Refer to table (1) (To move the axle hub toward the positive side) Refer to table (2) (To move the axle hub toward the negative side)

        The vehicle body and suspension may be damaged if the camber cannot be correctly adjusted according to the table above.

        NOTE:

        Replace the nut with a new one when replacing the bolt.

        GTY760762Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Table (1) (To move the axle hub toward the positive side)
        GTY442787Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *A Table (1) (To move the axle hub toward the positive side) *B Selected Bolt Combination
        *a Installed Bolt *b Adjusting Value
        *c Standard Bolt *d 90105-17013
        *e 90105-17014 *f 90105-17015
      3. Table (2) (To move the axle hub toward the negative side)
        GTY437937Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *A Table (2) (To move the axle hub toward the negative side) *B Selected Bolt Combination
        *a Installed Bolt *b Adjusting Value
        *c Standard Bolt *d 90105-17013
        *e 90105-17014 *f 90105-17015
    10. If the camber was out of adjustment in the previous step, perform the adjust camber steps mentioned above. In step A, replace the existing bolts with the selected bolts.

      HINT: 

      Replace one bolt at a time when replacing both bolts.

  5. INSPECT TOE-IN 
    NOTE:

    Inspect while the vehicle is unloaded.

    1. Bounce the vehicle up and down at the corners to stabilize the suspension.
    2. Release the parking brake and move the shift lever to N.
    3. Push the vehicle straight ahead approximately 5 m (16.4 ft.). (Step C)
    4. Put tread center marks on the rearmost points of the front wheels and measure the distance between the marks (dimension B).
      GTY425631Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Tread Center Mark
      *b Dimension B
      Front of the Vehicle
    5. Slowly push the vehicle straight ahead to cause the front wheels to rotate 180°. Use the front tire valve as a reference point.

      HINT: 

      Do not allow the wheels to rotate more than 180°. If the wheels rotate more than 180°, perform the procedure from step C again.

    6. Measure the distance between the tread center marks on the front of the wheels (dimension A).
      GTY427700Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Dimension A
      Front of the Vehicle

      Toe-in (Unloaded Vehicle)

      Engine Specified Condition
      2GR-FKS C + D: 0°04' +/- 0°10' (0.07° +/- 0.17°)
      B - A: 0.8 +/- 2.0 mm (0.0315 +/- 0.0787 in.)
      A25A-FXS C + D: 0°03' +/- 0°10' (0.04° +/- 0.17°)
      B - A: 0.5 +/- 2.0 mm (0.0197 +/- 0.0787 in.)

      HINT: 

      Measure "B - A" only when "C + D" cannot be measured.

      If the toe-in is not within the specified range, adjust it at the steering rack ends.

  6. ADJUST TOE-IN 
    1. Separate the steering rack boot clips from the steering rack boot.
    2. Loosen the tie rod assembly lock nuts.
      GTY762871Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Turn the right and left steering rack ends by an equal amount to adjust the toe-in.

      HINT: 

      • If the toe-in measurement is greater than the specified range (too much toe-out), extend the shorter rack end so that the difference in length is within the specified range.
      • If the toe-in measurement is less than the specified range (too much toe-in), shorten the longer rack end so that the difference in length is within the specified range.
    4. Measure the toe-in.
      GTY483976Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Front of the Vehicle

      Toe-in (Unloaded Vehicle)

      Engine Specified Condition
      2GR-FKS C + D: 0°04' +/- 0°10' (0.07° +/- 0.17°)
      B - A: 0.8 +/- 2.0 mm (0.0315 +/- 0.0787 in.)
      A25A-FXS C + D: 0°03' +/- 0°10' (0.04° +/- 0.17°)
      B - A: 0.5 +/- 2.0 mm (0.0197 +/- 0.0787 in.)

      HINT: 

      Perform adjustments so that the value is as close as possible to the median of the specified range.

    5. Tighten the tie rod assembly lock nuts.

      Torque: 88 N.m (897 kgf/cm, 65 ft.lbf) 

    6. Place the steering rack boots on the seats and install the steering rack boot clips.
      GTY758673Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Clip Tab Positioning Area
      Up
      Rear of Vehicle

      HINT: 

      • Make sure that the steering rack boots are not twisted.
      • Make sure that the tabs of the steering rack boot clip are positioned within the area shown in the illustration.
  7. INSPECT WHEEL ANGLE 
    1. Put tread center marks on the rearmost points of a turning radius gauge.
      GTY425420Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Inside
      *b Outside
      Front of the Vehicle
    2. Turn the steering wheel fully to the left and right and measure the turning angle.
      NOTE:

      Inspect while the vehicle is unloaded.

      Wheel Turning Angle (Unloaded Vehicle)

      Engine Tire Size Inside Wheel Outside Wheel
      2GR-FKS 215/55R17 38°52' +/- 2°00' (38.87° +/- 2.00°) 32°44' (32.73°)
      235/45R18
      235/40R19      		 37°29' +/- 2°00' (37.48° +/- 2.00°) 31°53' (31.88°)
      A25A-FXS 215/55R17 38°52' +/- 2°00' (38.87° +/- 2.00°) 32°44' (32.73°)
      235/45R18 37°29' +/- 2°00' (37.48° +/- 2.00°) 31°53' (31.88°)
      1. If the right and left inside wheel angles differ from the specified value, check and adjust the right and left steering rack end lengths.
  8. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD 
  9. PERFORM YAW RATE AND ACCELERATION SENSOR ZERO POINT CALIBRATION (for HV Model) 

    Refer to CALIBRATION [06/2018 - ]

  10. PERFORM ACCELERATION SENSOR ZERO POINT CALIBRATION AND STORE SYSTEM INFORMATION MEMORIZATION (for Gasoline Model) 

    Refer to UTILITY [06/2018 - ]

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