Front Wheel Alignment: Adjustment

1. Inspect the tires (See TIRE AND WHEEL SYSTEM ).

1. Press down on the vehicle several times to stabilize the suspension, and then measure the vehicle height.
   Fig 1: Inspecting Vehicle Height

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Vehicle Height (Unloaded Vehicle) 

   VEHICLE HEIGHT SPECIFICATION
   
   

   Suspension Package Option	Front A - B	Rear C - D
   Active Height Control STD	101.4 mm (3.99 in.)	93.5 mm (3.68 in.)

   Measuring points: 

   A: 

   Ground clearance of the front drive shaft center 

   B: 

   Ground clearance of the front adjusting cam bolt center 

   C: 

   Ground clearance of the rear axle shaft center 

   D: 

   Ground clearance of the rear lower control arm front side center 

   If the vehicle height is not as specified, adjust the height by pressing down on the vehicle several times to stabilize the suspension.

1. Install the camber-caster-kingpin gauge or place the front wheels on the center of the wheel alignment tester.
2. Inspect the camber, caster and steering axis inclination.
   Fig 2: Identifying Camber-Caster-Kingpin Gauge

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Camber Inclination (Unloaded) 

   STANDARD CAMBER INCLINATION (UNLOADED)
   
   

   Suspension Package Option	Camber Inclination
   Active Height Control STD	Camber Left - right error	0°00' +/-45' (0.00° +/-0.75°) 45' (0.75°) or less

   Standard Caster Inclination (Unloaded) 

   STANDARD CASTER INCLINATION (UNLOADED)
   
   

   Suspension Package Option	Caster Inclination
   Active Height Control STD	Caster Left - right error	3°23' +/-45' (3.38° +/-0.75°) 45' (0.75°) or less

   Standard Steering Axis Inclination (Unloaded Vehicle) 

   STANDARD STEERING AXIS INCLINATION (UNLOADED VEHICLE)
   
   

   Suspension Package Option	Steering Axis Inclination : Reference
   Active Height Control STD	Steering Axis	13°00' (13.00°)

   HINT:

   The steering axis inclination is a reference value.

HINT:

After the camber has been adjusted, inspect the toe-in.

1. Loosen the front adjusting cam bolt and rear adjusting cam nut.
2. Turn the front adjusting cam and rear adjusting cam in both directions, and adjust the camber and caster to the center value.
   Fig 3: Adjusting Camber And Caster

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT:

   • The camber and caster should be as close as possible to the center value.
   • Make sure the difference between the left and right camber and caster is within +/-30' (0.5°).
3. Read the adjustment chart (example).
   1. Find the wheel alignment standard value applicable for the particular model.
   2. Mark the selected standard value on the adjustment chart.

      Standard Value (Reference) 

      STANDARD VALUE (REFERENCE)
      
      

      Camber	Caster
      0°00' (0.00°)	4°00' (4.00°)

   3. Mark the alignment value measured when the vehicle is unloaded on the adjustment chart.

      Measured Value (Reference) 

      MEASURED VALUE (REFERENCE)
      
      

      Camber	Caster
      0°11' (0.18°)	4°38' (4.63°)

   4. As shown in the chart, read the distance from the marked point to 0, and adjust the front and/or rear adjusting cams accordingly.

      Amount to Turn Adjusting Cams (by Gradation) 

      Fig 4: Wheel Alignment And Adjustment Chart - Front Cam

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      ADJUSTMENT CHART
      
      

      Front Adjusting Cam	Rear Adjusting Cam
      +3.0	-2.0

      Fig 5: Wheel Alignment And Adjustment Chart - Rear Cam

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Bounce the vehicle up and down at the corners to stabilize the suspension and inspect the toe-in.

   Standard Toe-in (Unloaded Vehicle) 

   TOE-IN SPECIFICATION
   
   

   Item	A + B C - D
   Toe-in (total)	A + B: 0°00' +/-10' (0.00° +/-0.17°) C - D: 0 +/-2 mm (0 +/-0.0787 in.)

   Fig 6: Identifying Toe-In

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   If the toe-in is not as specified, adjust it at the rack ends.

   HINT:

   The toe-in can be measured using either A + B or C - D.

1. Release the rack boot set clips.
2. Loosen the tie rod end lock nuts.
3. Turn the right and left rack ends by an equal amount to adjust the toe-in to the center value.
4. Check that the length of the right and left rack ends are approximately the same.

   Standard difference: 0 +/-1 mm (0 +/-0.0394 in.) or less 

5. Tighten the tie rod end lock nuts.

   Torque: 82 N*m (836 kgf*cm, 60 ft.*lbf) 

6. Place the boots on the seats and install the clips.

   HINT:

   Make sure that the boots are not twisted.

7. Perform the VGRS system calibration (See INITIALIZATION ).
   Fig 7: Adjusting Toe-In

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Turn the steering wheel to the left and right full lock positions, and measure the turning angle.
   Fig 8: Inspecting Wheel Angle

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Wheel Turning Angle (Unloaded Vehicle) 

   STANDARD WHEEL TURNING ANGLE (UNLOADED VEHICLE)
   
   

   Suspension Package Option	Inside Wheel Angle	Outside Wheel Angle: Reference
   Active Height Control STD	33°28' to 36°28' (33.46° to 36.46°)	32°02' (32.03°)

   If the right and left inside wheel angles differ from the specified range, check the right and left rack end lengths.

1. Perform the yaw rate and deceleration sensor zero point calibration (See CALIBRATION ).

1. Check the steering angle sensor zero point calibration (See DTC C1231/31 STEERING ANGLE SENSOR CIRCUIT MALFUNCTION ).