CAMSHAFT OIL CONTROL VALVE ON-VEHICLE INSPECTION


  1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY


    1. Connect the intelligent tester to the DLC3.

    2. Start the engine and warm it up.

    3. Turn the tester on.

    4. Inspect the oil control valve (for intake camshaft).


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

      2. Check the engine speed when the oil control valve is operated using the intelligent tester 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.

        OK
        Control Range Specified Condition
        OFF Normal engine speed
        ON Rough idle or engine stalls (soon after oil control valve switched from OFF to ON)

    5. Inspect the oil control valve (for exhaust camshaft).


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

      2. Check the engine speed when the oil control valve is operated using the intelligent tester 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 engine is started should be 30°C (86°F) or less.

        OK
        Control Range Specified Condition
        100% Rough idle or engine stalls (soon after oil control valve switched from OFF to ON)
        -100% Normal engine speed