Camshaft Oil Control Valve On-Vehicle Inspection


  1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY

Camshaft Oil Control Valve -- On-Vehicle Inspection



1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY

  1. Connect the intelligent tester to the DLC3.

  1. Start the engine.

  1. Turn the intelligent tester on.

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

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

    2. Operate the oil control valve using the intelligent tester, and then check the engine speed.

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

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

    4. Operate the oil control valve using the intelligent tester, and then check the engine speed.

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

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

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

    2. Operate the oil control valve using the intelligent tester, and then check the engine speed.

      OK:
      Control Range
      		Specified Condition
      -100%
      		Normal engine speed
      100%
      		Rough idle or engine stalls soon after oil control valve switched to 100%
      If the operation is not as specified, check the oil control valve, wire harness and ECM.

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

    4. Operate the oil control valve using the intelligent tester, and then check the engine speed.

      OK:
      Control Range
      		Specified Condition
      -100%
      		Normal engine speed
      100%
      		Rough idle or engine stalls soon after oil control valve switched to 100%
      If the operation is not as specified, check the oil control valve, wire harness and ECM.