FixVault
Home › Toyota › 2008 › Camry Solara SLE, 2D Convertible › Repair and Diagnosis › Engine Performance › Engine Control System (3MZ-FE) › SFI System › ACIS Control Circuit › Inspection Procedure

Inspection Procedure

  1. PERFORM ACTIVE TEST BY TECHSTREAM (OPERATE VSV FOR IAC VALVE NO. 2) 
    1. Disconnect the vacuum hose.
    2. Connect Techstream to the DLC3.
    3. Turn the ignition switch to the ON position and push Techstream main switch on.
    4. Enter the following menus: Powertrain / Engine and ECT / Active Test / Active the VSV for Intake Control. Operate the VSV.
    5. Check the VSV operation when it is operated by Techstream.

      Standard 

      TESTER OPERATION SPECIFIED CONDITION CHART

      Tester Operation Specified Condition
      VSV is ON Air from port E flows out through port F
      VSV is OFF Air from port E flows out through the air filter
      Fig 1: Identifying VSV Operation
      G05587352Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK:  Go to step  4

    NG: Go to Next Step 

  2. CHECK VSV FOR IAC VALVE NO. 2 (OPERATION) 
    1. Check that air flows from port E to the air filter.
      Fig 2: Identifying Air Flows From Port E To Air Filter
      G05245790Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Apply battery positive voltage across the terminals.
    3. Check that air flows from port E to port F.
      Fig 3: Identifying Air Flows From Port E To Port F
      G05128709Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE VSV 

    OK: Go to Next Step 

  3. CHECK WIRE HARNESS (VSV FOR AICS - ECM, EFI RELAY) 
    1. Check the wire harness between the VSV and the ECM.
      1. Disconnect the VSV connector.
        2. Fig 4: Identifying VSV Connector And ECM Connector
        G05587355Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Disconnect the ECM connector.
      3. Measure the resistance of the wire harness side connectors.

        Standard resistance 

        TESTER CONNECTION SPECIFIED CONDITION CHART

        Tester Connection Specified Condition
        V2-2 - ACIS (E8-33) Below 1 Ω
        V2-2 or ACIS (E8-33) - Body ground 10 kΩ or higher
    2. Check the wire harness between the VSV and EFI relay.
      1. Disconnect the VSV connector.
        2. Fig 5: Identifying VSV Connector
        G05587356Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Remove the EFI relay from the engine room J/B.
      3. Measure the resistance of the wire harness side connectors.

        Standard resistance 

        TESTER CONNECTION SPECIFIED CONDITION CHART

        Tester Connection Specified Condition
        V2-1 - EFI relay terminals Below 1 Ω

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to Next Step 

  4. CHECK VACUUM HOSES (INTAKE MANIFOLD - IAC VALVE, INTAKE AIR CONTROL) 

    Check that the vacuum hoses are:

    • Connected correctly.
    • Are not loose or disconnected.
    • Do not have cracks, holes or damage.

    NG: REPAIR OR REPLACE VACUUM HOSES 

    OK: Go to Next Step 

  5. INSPECT INTAKE AIR CONTROL VALVE 

    NG: REPLACE INTAKE AIR CONTROL VALVE 

    OK: REPLACE ECM 

About FixVault