OCV FOR HYDRAULIC VARIABLE VALVE TIMING SYSTEM INSPECTION [SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION)]

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Warning
•  A hot engine can cause severe burns. Turn off the engine and wait until it is cool before servicing.

Coil resistance inspection

1.  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

2.  Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION [SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION)].)

3.  Disconnect the OCV for hydraulic variable valve timing system connector.

4.  Measure the resistance between terminals A and B using an ohmmeter.

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OCV for hydraulic variable valve timing system coil resistance
6.9—7.5 ohms [20°C {68°F}]
•  If not as specified, replace the OCV for hydraulic variable valve timing system. (See OCV FOR HYDRAULIC VARIABLE VALVE TIMING SYSTEM REMOVAL/INSTALLATION [SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION)].)

5.  Install in the reverse order of removal.


Spool valve operation inspection

1.  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

2.  Remove the OCV for hydraulic variable valve timing system. (See OCV FOR HYDRAULIC VARIABLE VALVE TIMING SYSTEM REMOVAL/INSTALLATION [SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION)].)

3.  Verify that the spool valve in the OCV for hydraulic variable valve timing system is in the maximum valve timing advance position as indicated in the figure.

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•  If not as specified, replace the OCV for hydraulic variable valve timing system. (See OCV FOR HYDRAULIC VARIABLE VALVE TIMING SYSTEM REMOVAL/INSTALLATION [SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION)].)

4.  Verify that the battery is fully charged. (See BATTERY INSPECTION.)

•  If not as specified, recharge the battery. (See BATTERY RECHARGING.)

Note
•  When applying battery positive voltage between the OCV for hydraulic variable valve timing system terminals, the connection can be either of the following:
―  Positive battery cable to terminal A, negative battery cable to terminal B
―  Positive battery cable to terminal B, negative battery cable to terminal A
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5.  Apply battery positive voltage between the OCV for hydraulic variable valve timing system terminals and verify that the spool valve operates and moves to the maximum valve timing retard position.

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•  If not as specified, replace the OCV for hydraulic variable valve timing system. (See OCV FOR HYDRAULIC VARIABLE VALVE TIMING SYSTEM REMOVAL/INSTALLATION [SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION)].)

6.  Stop applying battery positive voltage and verify that the spool valve returns to the maximum valve timing advance position.

•  If not as specified, replace the OCV for hydraulic variable valve timing system. (See OCV FOR HYDRAULIC VARIABLE VALVE TIMING SYSTEM REMOVAL/INSTALLATION [SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION)].)

7.  Install the OCV for hydraulic variable valve timing system. (See OCV FOR HYDRAULIC VARIABLE VALVE TIMING SYSTEM REMOVAL/INSTALLATION [SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION)].)