OIL CONTROL VALVE (OCV) INSPECTION [LF, L5]


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Coil Resistance Inspection

1.  Disconnect the negative battery cable.

2.  Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION [L8, LF, L5].)

3.  Disconnect the OCV connector.

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

•  If not as specified, replace the OCV.
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coil resistance
6.9—7.9 ohms [20°C {68°F}]

5.  Connect the OCV connector.

6.  Install the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION [L8, LF, L5].)

7.  Connect the negative battery cable.


Spool Valve Operation Inspection

1.  Remove the OCV. (See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION [LF, L5].)

2.  Verify that the spool valve in the OCV is in the maximum valve timing retard position as indicated in the figure.

•  If not as specified, replace the OCV.
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3.  Verify that the battery is fully charged. (See BATTERY INSPECTION [L8, LF, L5].)

•  If not as specified, recharge the battery. (See BATTERY RECHARGING [L8, LF, L5].)

Note
•  When applying battery positive voltage between the OCV 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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4.  Apply battery positive voltage between the OCV terminals and verify that the spool valve operates and moves to the maximum valve timing advance position.

•  If not as specified, replace the OCV.
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5.  Stop applying battery positive voltage and verify that the spool valve returns to the maximum valve timing retard position.

•  If not as specified, replace the OCV.

1.  Install the OCV. (See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION [LF, L5].)