Front Wheel Alignment: Inspection

NOTE: Be sure to perform the zero point calibration of steering angle, master cylinder pressure, yaw rate and deceleration sensors (See PRE-CHECK ).

MEASURE VEHICLE HEIGHT
Measuring points:
1. A: Ground clearance of the front drive shaft center
2. B: Ground clearance of the front adjusting cam bolt center
3. C: Ground clearance of the rear axle shaft center
4. D: Ground clearance of the rear lower control arm front bolt center
Vehicle height:

Fig 1: Identifying Front Wheel Alignment Measuring Points
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Vehicle Height Specification Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NOTE: Before inspecting the wheel alignment, adjust the vehicle height to the specified value.

If the vehicle height is not the specified value, try to adjust it by pushing down on or lifting the body.
INSTALL CAMBER-CASTER-KINGPIN GAUGE OR POSITION VEHICLE ON WHEEL ALIGNMENT TESTER
Follow the specific instructions of the equipment manufacturer.

Fig 3: Installing Camber-Caster-Kingpin Gauge
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT CAMBER, CASTER AND STEERING AXIS INCLINATION
Camber, caster and steering axis inclination:

Fig 4: Camber, Caster And Steering Axis Inclination Specifications
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If the steering axis inclination is not within the specified value, after the camber and caster have been correctly adjusted, re-check the steering knuckle and front wheel for bearing or looseness.
ADJUST CAMBER AND CASTER
1. Loosen the front and/or rear adjusting cam set bolts.
2. Adjust the camber and caster by front and/or rear adjusting cams (See adjustment chart).
  NOTE: Try to adjust the camber and caster to the center of the specified values.
3. How to read adjustment chart (Example).
  1. Find the applicable wheel alignment standard value for the particular model.
  2. Mark the selected standard value on the adjustment chart.
    Example:
    
    Camber: 0°08' (0.13°)
    
    Caster: 2°59' (2.98°)
  3. Measure the present wheel alignment value with the vehicle in non-loaded condition.
  4. Mark the measured present value on the adjustment chart.
    Example:
    
    Camber: 0°20' (0.33°)
    
    Caster: 2°59' (2.98°)
  5. As shown in the example chart, read the distance from the measured value to the standard value, and adjust the front and/or rear adjusting cams accordingly.
    
    Fig 6: Camber And Caster Adjustment Chart
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    Amount to turn adjusting cams (by graduation):
    
    Example:
    
    Front cam: 1.4 (+ direction)
    
    Rear cam: 1.3 (+ direction)
    
    Fig 7: View Of Adjusting Cams
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Torque the front and/or rear adjusting cam set bolts.
  Torque: 130 N.m (1,325 kgf.cm, 96 ft.lbf)
  
  Fig 8: Front And/Or Rear Cam Set Bolt Adjustment Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT TOE-IN
Toe-in (total):

Fig 9: Toe-In Specifications
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If the toe-in is not within the specified value, adjust the rack ends.

ADJUST TOE-IN AND WHEEL ANGLE

Remove the 2 clips.

Fig 10: Identifying Toe-In
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Loosen the tie rod end lock nuts.

Fig 11: Loosening Tie Rod End Lock Nuts

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Turn the right and left rack ends by an equal amount to adjust the toe-in.
NOTE: Try to adjust the toe-in to the center of the specified value.
Make sure that the lengths of the right and left rack ends are the same.
Rack end length difference: 1.5 mm (0.059 in.) or less

Fig 12: Identifying Lengths Of Right And Left Rack Ends
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Tighten the tie rod end lock nuts.
Torque: 55 N.m (560 kgf.cm, 41 ft.lbf)
Place the boots on the seats and install the clips.
NOTE: Make sure that the boots are not twisted.
Inspect the wheel angle.
Turn the steering wheel fully and measure the turning angle.

Fig 13: Measuring Turning Angle
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Wheel turning angle:

WHEEL TURNING ANGLE

Model	Inside Wheel	Outside Wheel: Reference
UCK35L-GKSSKA	34°01'-37°01' (34 01°-37. 01°)	32°08'(32.13°)
UCK35L-GKSLKA	33°58'-36°58' (33.96-36.96)	32°05' (32.09°)
UCK45L-GKSSKA	34° 12'-37° 12' (34° 20'-37° 20')	32°17' (32.28°)
UCK45L-GKSLKA	34°10'-37°10' (34.17° - 37.17°)	32° 16'(32.26°)

If the right and left wheel turning angles differ from the specified value, readjust the toe-in and wheel angle within the specified value. At this time, make sure that the lengths of the right and left rack ends are the same.

Rack end length difference: 1.5 mm (0.059 in.) or less