OIL CONTROL VALVE (OCV) INSPECTION

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Coil Resistance Inspection

1. Measure the coil resistance between terminals A and B using a tester.

• If it is not within the specification, replace the oil control valve.

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Oil control valve coil resistance

6.9—7.9 ohms [20°C {68°F}]

Spool Valve Operation Inspection

1. Verify that the spool valve inside the oil control valve is at the maximum valve timing retard position as shown in the figure.

• If there is any malfunction, replace the oil control valve.

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2. Apply battery positive voltage between the oil control valve terminals A and B and verify that the spool valve operates and move to the maximum valve timing advance position.

• If there is any malfunction, replace the oil control valve.

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Note

• When applying battery positive voltage between the oil control valve terminals, the connection of the positive and negative cables can be either terminal A or B.

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

• If there is any malfunction, replace the oil control valve.