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Home >> Toyota >> 2005 >> Camry LE, 3.0 F >> Repair and Diagnosis >> Engine Performance >> Engine Control System (SFI) (1MZ-FE/3MZ-FE) - Diagnostics >> ACIS Control Circuit >> Inspection Procedure >> Hand-held tester:

Hand-held tester:

  1. PERFORM ACTIVE TEST BY HAND-HELD TESTER (OPERATE VSV FOR IAC VALVE NO. 1 (1MZ-FE OLNY), NO. 2) 
    1. Disconnect the vacuum hose.
    2. Connect the hand-held tester to the DLC3.
    3. Turn the ignition switch ON and push the hand-held tester main switch ON.
    4. 1MZ-FE:

      Enter the following menus: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / INTAKE CTL VSV1 or INTAKE CTL VSV2. Operate the VSV.

      3MZ-FE:

      Enter the following menus: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / INTAKE CTL VSV1. Operate the VSV.

      Fig 1: Disconnecting Vacuum Hose
      G02633380Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Check the VSV operation.

      Standard: 

      TESTER CONNECTION 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
    1. OK: Go to step   4 

    NG: Go to Next Step. 

  2. CHECK VSV FOR IAC VALVE NO. 1 (1MZ-FE OLNY), NO. 2 (OPERATION) 
    1. Check that air flows from port E to the air filter.
      Fig 2: Checking Air Flows From Port E To Air Filter
      G02633381Courtesy 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: Applying Battery Positive Voltage Across Terminals
      G02633382Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE VSV 

    OK: Go to Next Step. 

  3. CHECK WIRE HARNESS (VSV FOR IAC VALVE NO. 1 (1MZ-FE ONLY), NO. 2 - ECM, VSF FOR IAC VALVE NO. 1 (1MZ-FE ONLY), NO. 2 - EFI RELAY) 
    1. Check the wire harness between the VSV and ECM.
      1. 1MZ-FE:

        Disconnect the V13 and V14 VSV connectors.

        3MZ-FE:

        Disconnect the V13 VSV connector.

      2. Disconnect the E10 ECM connector.
      3. Measure the resistance of the wire harness side connectors.

      Standard: 

      1MZ-FE 

      TESTER CONNECTION SPECIFIED CONDITION 1MZ-FE

      Tester Connection Specified Condition
      1. V13-2-E10-15 (ACIS)
      2. V14-2-E10-14 (ACI1)
      		 Below 1 Ω
      1. V13-2 or E10-15 (ACIS) - Body ground
      2. V14-2 or E10-14 (ACI1) - Body ground
      		 10kΩ or higher

      3MZ-FE 

      TESTER CONNECTION SPECIFIED CONDITION 3MZ-FE

      Tester Connection Specified Condition
      V13-2-E10-15 (ACIS) Below 1 Ω
      V13-2 or E10-15 (ACIS) - Body ground 10 kΩ or higher
      Fig 4: Disconnecting V13 VSV Connector
      G02633383Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Check the wire harness between the VSV and EFI relay.
      1. 1MZ-FE:

        Disconnect the V13 and V14 VSV for ACIS connectors.

        3MZ-FE

        Disconnect the V13 VSV connector.

      2. Remove the EFI relay from the engine room J/B.
      3. Measure the resistance of the wire harness side connectors.

      Standard: 

      1MZ-FE 

      TESTER CONNECTION SPECIFIED CONDITION 1MZ-FE

      Tester Connection Specified Condition
      V13-1 - J/B EFI relay terminal 3 V14-1 - J/B EFI relay terminal 3 Below 1 Ω

      3MZ-FE 

      TESTER CONNECTION SPECIFIED CONDITION 3MZ-FE

      Tester Connection Specified Condition
      V13-1 - J/B EFI relay terminal 3 Below 1 Ω
      Fig 5: Disconnecting V13 And V14 VSV For ACIS Connectors
      G02633384Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK: Go to Next Step. 

  4. CHECK VACUUM HOSES (INTAKE MANIFOLD - INTAKE AIR CONTROL VALVE, INTAKE AIR CONTROL) 
    1. Check that the vacuum hoses are connected correctly.
    2. Check that the vacuum hoses are not loose or disconnected.
    3. Check that the vacuum hoses do not have cracks, punctures or damage.
    1. NG: REPAIR OR REPLACE VACUUM HOSES 

    OK: Go to Next Step. 

  5. INSPECT INTAKE AIR CONTROL VALVE (See  INSPECTION  ) 
    1. NG: REPLACE INTAKE AIR CONTROL VALVE 

    OK: REPLACE ECM (See  ELECTRONIC CIRCUIT INSPECTION PROCEDURE  ) 

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