On-Vehicle Inspection

1. Check the operation.
   1. Using a 3-way connector, connect the vacuum gauge to the actuator hose as shown in the illustration.
      Fig 1: Connecting Vacuum Gauge To Actuator Using 3 - Way Connector

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Connect the hand-held tester to the DLC3.
   3. Start the engine.
   4. Turn the hand-held tester switch ON.
   5. Select the item "DIAGNOSIS/ENHANCED OBD II / ACTIVE TEST/INTAKE CTL VSV1" and operate the VSV for AICS.
      Fig 2: Connecting DLC3 Terminal To Hand Held Tester

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Vacuum: 

If the operation is not as specified, replace the intake air control valve No. 2.