Repair Procedures

WARNING: This page is about a different car, the 2005 Lexus GS 430 and 2005 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

This is the repair procedure for steering off center.

INSPECT STEERING WHEEL OFF CENTER
1. Apply masking tape on the top center of the steering wheel and steering column upper cover.
  
  Fig 1: Applying Masking Tape On Top Center Of Steering Wheel
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Drive the vehicle in a straight line for 100 meters at a constant speed of 35 mph (56 km/h), and hold the steering wheel to maintain the course.
3. Draw a line on the masking tape as shown in the illustration.
  
  Fig 2: Drawing Line Over Masking Tape
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Turn the steering wheel to its straight position.
  HINT:
  
  Refer to the upper surface of the steering wheel, steering spoke and SRS airbag line for the straight position.
5. Draw a new line on the masking tape of the steering wheel as shown in Fig 3.
6. Measure the distance between the 2 lines on the masking tape of the steering wheel.
7. Convert the measured distance to steering angle.
  Measured distance 1 mm (0.04 in.) = Steering angle approximately 1 degree.
  
  HINT:
  
  Make a note of the steering angle.
  
  Fig 3: Drawing New Line On Mask Tape
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
ADJUST STEERING ANGLE
1. Draw a line on the RH and LH tie rod and rack ends where it can easily be seen (see Fig 4).
2. Using a paper gauge, measure the distance from RH and LH tie rod ends to the rack end screws.
  HINT:
  - Measure the RH side and LH side.
  - Make a note of the measured values.
    
    Fig 4: Marking Line Over RH & LH Tie Rod End
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Remove the RH and LH boot clips from the rack boots.
4. Loosen the RH and LH lock nuts.
5. Turn the RH and LH rack end by the same amount (but in different directions) according to the steering angle.
  1 turn 360 degrees of rack end (1.5 mm (0.059 in.) horizontal movement) = 12 degrees of steering angle
6. Tighten the RH and LH lock nuts.
  Torque: 56 N.m (570 kgf.cm, 41 ft.lbf)
  
  NOTE: Make sure that the difference in length between RH and LH tie rod ends and rack end screws are within 1.5 mm (0.059 in.).
7. Install the RH and LH boot clips.
  
  Fig 5: Removing RH & LH Boot Clips & RH & LH Lock Nuts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002