FixVault

Replacement [12/2021 - ]: Procedure

  1. REPLACE ACTIVE HEIGHT CONTROL FLUID 
    NOTE:

    Make sure the vehicle is in full contact with the ground.

    1. Remove the quarter panel rear mudguard RH.

      HINT: 

      Use the same procedure described for the LH side.

      Refer to PROCEDURE - Step 1

    2. Remove the rear bumper side seal RH.

      HINT: 

      Use the same procedure described for the LH side.

      Refer to PROCEDURE - Step 28

    3. Disconnect the rear wheel house liner RH.

      Refer to PROCEDURE - Step 7

    4. With the engine stopped, fill the reservoir tank with fluid. (*1)

      Capacity (Reference)

      4.4 liters (4.65 US qts, 3.9 Imp. qts)

      HINT: 

      At this point, the vehicle height is low because the pressure of the cylinders is low.

    5. Switch the access mode to OFF via the vehicle settings on the integration control and panel assembly.
    6. Start the engine and set the vehicle height to N. (*2)
      NOTE:

      When the engine starts, the pump operates and fluid is supplied to each cylinder from the reservoir tank. Therefore, add the necessary amount of fluid so that the reservoir tank does not become empty.

    7. Stop the engine. (*3)
      NOTE:

      After vehicle height control has operated, do not stop the engine immediately while operation to accumulate or discharge pressure is being performed.

      HINT: 

      Vehicle Height Adjustment Time (Reference Value)

      Ascent Height Control Pressure Accumulation
      H1→H2 10 seconds 15 seconds
      N→H1 5 seconds 12 seconds
      L→N 7 seconds 12 seconds
      Descent Height Control Pressure Discharge
      H2→H1 5 seconds -
      H1→N 4 seconds -
      N→L 3 seconds 8 seconds
    8. GTY1067381Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Slide the clip and remove the breather plug.

    9. Remove the 4 bleeder plug caps from each of the suspension control accumulator assemblies.
    10. Connect a hose to the bleeder plug of the front left side suspension control accumulator assembly, then loosen the bleeder plug. (*4)
      WARNING:

      Be careful when loosening the suspension control accumulator assembly bleeder plug because the front vehicle height drops rapidly.

      GTY1067406Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    11. Tighten the bleeder plug when no more air remains in the fluid and cloudiness is gone. (*5)

      Torque: 8.3 N.m (85 kgf/cm, 73 in.lbf) 

    12. Connect a hose to the bleeder plug of the front right side suspension control accumulator assembly, then loosen the bleeder plug. (*6)
      WARNING:

      Be careful when loosening the suspension control accumulator assembly bleeder plug because the front vehicle height drops rapidly.

    13. Tighten the bleeder plug when no more air remains in the fluid and cloudiness is gone. (*7)

      Torque: 8.3 N.m (85 kgf/cm, 73 in.lbf) 

    14. Connect a hose to the bleeder plug of the rear left side suspension control accumulator assembly, then loosen the bleeder plug. (*8)
      WARNING:

      Be careful when loosening the suspension control accumulator assembly bleeder plug because the rear vehicle height drops rapidly.

      GTY1067405Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    15. Tighten the bleeder plug when no more air remains in the fluid and cloudiness is gone. (*9)

      Torque: 8.3 N.m (85 kgf/cm, 73 in.lbf) 

    16. Connect a hose to the bleeder plug of the rear right side suspension control accumulator assembly, then loosen the bleeder plug. (*10)
      WARNING:

      Be careful when loosening the suspension control accumulator assembly bleeder plug because the rear vehicle height drops rapidly.

    17. Tighten the bleeder plug when no more air remains in the fluid and cloudiness is gone. (*11)

      Torque: 8.3 N.m (85 kgf/cm, 73 in.lbf) 

    18. Start the engine and set the vehicle height to N. (*12)
      NOTE:

      When the engine starts, the pump operates and fluid is supplied to each cylinder from the reservoir tank. Therefore, add the necessary amount of fluid so that the reservoir tank does not become empty.

    19. Repeat steps from (*1) to (*12) until new fluid comes out.
  2. BLEED AIR FROM SUSPENSION FLUID 

    Refer to PROCEDURE - Step 5

  3. CHECK FLUID LEVEL IN RESERVOIR 

    Refer to PROCEDURE - Step 1

  4. INSPECT FOR SUSPENSION FLUID LEAK 

    Refer to PROCEDURE - Step 2