Suspension Control System: Adjustment

1. ADJUST STANDARD VEHICLE HEIGHT 
   1. Adjust the pressure of the tires.
   2. Stabilize the suspension by releasing the parking brake and bouncing the corners of the vehicle up and down.
   3. Move the shift lever to N and move the vehicle forward and rearward.
   4. Turn the engine switch off.
   5. Connect the Techstream to the DLC3.
   6. Start the engine.
   7. Turn the Techstream on.
   8. Enter the following menus: Chassis / Air suspension / Data List.
   9. Press the height control switch and adjust the vehicle height to "HEIGHT HIGH".
   10. Press the height control switch and return the vehicle height to normal.
   11. Using the Data List, confirm that the vehicle height control operation is complete.
2. INSPECT VEHICLE HEIGHT 
   1. Inspect the vehicle height (see ADJUSTMENT ).
   NOTE: The possible vehicle height automatic adjustment value is 20 mm. If the "Height Adjust value + (Standard value - Measurement value - After Height Adjust value)" is 20 mm or more, first perform the standard vehicle height adjustment (height control link adjustment)
3. ADJUST HEIGHT CONTROL SENSOR LINK SUB-ASSEMBLY (for Front) 
   NOTE:

   • First adjust the height control sensor link that has the highest deviation from the standard value.
   • If the deviation of the front and rear link is the same, adjust the front link first.
   1. Loosen the 2 lock nuts on the height control sensor link.
   2. Turn the bolt of the height control sensor link to adjust the length.

      HINT:

      • If raising the vehicle height, lengthen the link.
      • If lowering the vehicle height, shorten the link.
      • Turning the bolt of the height control sensor link 1 revolution changes the vehicle height by about 7.3 mm (0.287 in.).
      Fig 1: Turning Bolt Of Height Control Sensor Link
      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   3. Check if the height control sensor link dimension shown below is less than the maximum value.

      Maximum dimension: 

      18 mm (0.71 in.) 

   4. Tighten the lock nuts.

      Torque: 5.4 N*m (55 kgf*cm, 48 in.*lbf) 

      NOTE: Make sure the ball joint and bracket are parallel when tightening the lock nuts.
      Fig 2: Identifying Lock Nuts Clearance

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. ADJUST HEIGHT CONTROL SENSOR LINK SUB-ASSEMBLY (for Rear) 
   1. Adjust the rear vehicle height by moving the installation position of the link on the lower arm.

      HINT:

      When the link is moved 1.0 mm (0.039 in.), the vehicle height is adjusted by about 1.5 mm (0.059 in.).

      Torque: 5.4 N*m (55 kgf*cm, 48 in.*lbf) 

   2. Perform vehicle height offset calibration once again.
   3. Inspect the vehicle height once again.
   Fig 3: Identifying Height Control Sensor Link Sub-Assembly
   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. INSPECT WHEEL ALIGNMENT 

1. Front:

   Inspect the wheel alignment (see ADJUSTMENT ).

2. Rear:

Inspect the wheel alignment (see ADJUSTMENT ).