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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Intake / Exhaust System (2GR-FKS) - Service Information >> INTAKE AIR CONTROL VALVE (for ACIS) >> On-Vehicle Inspection [12/2019 - 10/2022] >> Procedure

On-Vehicle Inspection [12/2019 - 10/2022]: Procedure

  1. INSPECT INTAKE AIR CONTROL VALVE (for ACIS) 
    1. Remove the V-bank cover sub-assembly.

      Refer to PROCEDURE - Step 23 [12/2019 - 09/2020] , or refer to PROCEDURE - Step 23 [09/2020 - 10/2022]

    2. Disconnect the vacuum hose sub-assembly from the intake air control valve (for ACIS).
      GTY886064Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Connect a hose and vacuum pump to the intake air control valve (for ACIS).
    4. Using the vacuum pump, apply a vacuum to the intake air control valve (for ACIS). Check that the actuator rod operates when vacuum is applied.
      GTY861618Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Actuator Rod

      If the actuator rod does not operate when vacuum is applied, replace the intake air surge tank assembly.

    5. Using the vacuum pump, apply a vacuum to the intake air control valve (for ACIS). Check that there is no change in vacuum after 1 minute.

      If the operation is not as specified, replace the intake air surge tank assembly.

    6. Disconnect the hose and vacuum pump from the intake air control valve (for ACIS).
    7. Connect the vacuum hose sub-assembly to the intake air control valve (for ACIS).
    8. Install the V-bank cover sub-assembly.

      Refer to PROCEDURE - Step 52 [12/2019 - 09/2020] , or refer to PROCEDURE - Step 52 [09/2020 - 10/2022]

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