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Home >> Toyota >> 2011 >> Highlander Hybrid Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 63 (Engine Control System (2GR-FE) (Diagnostic Codes (P1604 - P2610) & Circuit Tests))) >> SFI System >> ACIS Control Circuit >> Procedure

ACIS Control Circuit: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. PERFORM ACTIVE TEST USING TECHSTREAM (ACTIVE THE VSV FOR INTAKE CONTROL) 
    1. Connect the Techstream to the DLC3.
    2. Start the engine and turn the tester on.
    3. Select the following menu items: Powertrain / Engine and ECT / Active Test / Active the VSV for Intake Control.
    4. Check the operation of the VSV when the intake air control is operated by the tester.

      OK

      Operational noise can be heard.

    NG → See step   2 

    OK → See step   5 

  2. CHECK INTAKE AIR CONTROL VALVE (OPERATION) 
    1. Disconnect the intake air control valve connector.
      Fig 1: Identifying Intake Air Control Valve Connector
      GTY302482Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Apply battery voltage between the terminals of the air intake valve connector.
      TEXT IN ILLUSTRATION

      *a Component without harness connected
      (Intake Air Control Valve)
    3. Check the air intake valve operation.

      OK

      Operational noise can be heard.

    4. Reconnect the intake air control valve connector.

    NG → See step   6 

    OK: Go to next step 

  3. INSPECT TERMINAL VOLTAGE (INTAKE AIR CONTROL VALVE CONNECTOR) 
    1. Disconnect the intake air control valve connection.
      Fig 2: Identifying Intake Air Control Valve Connection
      GTY304003Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Turn the ignition switch on (IG).
    3. Measure the voltage according to the value(s) in the table below.

      Standard voltage

      Tester Connection Switch Condition Specified Condition
      2 - Body ground Ignition switch on (IG) 9 to 14 V
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Intake Air Control Valve)
    4. Reconnect the intake air control valve connector.

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI NO. 3 - INTAKE AIR CONTROL VALVE) 

    OK: Go to next step 

  4. CHECK HARNESS AND CONNECTOR (INTAKE AIR CONTROL VALVE - ECM) 
    1. Disconnect the intake air control valve connector.
    2. Disconnect the ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Check for open 

      Check for short 

      Tester Connection Condition Specified Condition
      B28-1 - B49-19 (ACIS) Always Below 1 Ω
      Tester Connection Condition Specified Condition
      B28-1 or B49-19 (ACIS) - Body ground Always 10 kΩ or higher
    4. Reconnect the intake air control valve connector.
    5. Reconnect the ECM connector.

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (VSV FOR ACIS - ECM) 

    OK → See step   7 

  5. PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE 
  6. REPLACE INTAKE AIR SURGE TANK. Refer to  COMPONENTS 
  7. REPLACE ECM. Refer to  COMPONENTS 
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