CAMSHAFT OIL CONTROL VALVE ON-VEHICLE INSPECTION


  1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY


    1. Connect the GTS to the DLC3.

    2. Start the engine.

    3. Turn the GTS on.

    4. Turn the A/C switch on.

    5. Inspect the camshaft timing oil control valve assembly (for intake camshaft).


      1. Enter the following menus: Powertrain / Engine / Active Test / Control the VVT Linear (Bank 1).

      2. Check the engine speed when the camshaft timing oil control valve assembly is operated using the GTS with the engine coolant temperature at 50°C (122°F) or less.

        Tech Tips


        • When performing the Active Test, the air conditioning should be on.

        • Engine coolant temperature when the engine is started should be 30°C (86°F) or less.

        Standard Condition
        Control Range Specified Condition
        0% Normal engine speed
        100% Engine idles roughly or stalls

        If the operation is not as specified, check the camshaft timing oil control valve assembly, wire harness and ECM.

      3. Enter the following menus: Powertrain / Engine / Active Test / Control the VVT Linear (Bank 2).

      4. Check the engine speed when the camshaft timing oil control valve assembly is operated using the GTS with the engine coolant temperature at 50°C (122°F) or less.

        Tech Tips


        • When performing the Active Test, the air conditioning should be on.

        • Engine coolant temperature when the engine is started should be 30°C (86°F) or less.

        Standard Condition
        Control Range Specified Condition
        0% Normal engine speed
        100% Engine idles roughly or stalls

        If the operation is not as specified, check the camshaft timing oil control valve assembly, wire harness and ECM.

    6. Inspect the camshaft timing oil control valve assembly (for exhaust camshaft).


      1. Enter the following menus: Powertrain / Engine / Active Test / Control the VVT Exhaust Linear (Bank 1).

      2. Check the engine speed when the camshaft timing oil control valve assembly is operated using the GTS with the engine coolant temperature at 50°C (122°F) or less.

        Tech Tips


        • When performing the Active Test, the air conditioning should be on.

        • Engine coolant temperature when the engine is started should be 30°C (86°F) or less.

        Standard Condition
        Control Range Specified Condition
        0% Normal engine speed
        100% Engine idles roughly or stalls

        If the operation is not as specified, check the camshaft timing oil control valve assembly, wire harness and ECM.

      3. Enter the following menus: Powertrain / Engine / Active Test / Control the VVT Exhaust Linear (Bank 2).

      4. Check the engine speed when the camshaft timing oil control valve assembly is operated using the GTS with the engine coolant temperature at 50°C (122°F) or less.

        Tech Tips


        • When performing the Active Test, the air conditioning should be on.

        • Engine coolant temperature when the engine is started should be 30°C (86°F) or less.

        Standard Condition
        Control Range Specified Condition
        0% Normal engine speed
        100% Engine idles roughly or stalls

        If the operation is not as specified, check the camshaft timing oil control valve assembly, wire harness and ECM.