Engine Oil Control Valve: Testing and Inspection

OIL CONTROL VALVE (OCV) INSPECTION [MZR 2.0, MZR 2.5]

Coil Resistance Inspection

1. Remove the battery cover. Removal and Replacement

2. Disconnect the negative battery cable. Removal and Replacement

3. Remove the plug hole plate. Plug Hole Plate Removal/Installation

4. Disconnect the OCV connector.

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






OCV coil resistance
- 6.9-7.9 ohms [20°C {68°F}]

- If not as specified, replace the OCV. Service and Repair

6. Install in the reverse order of removal.

Spool Valve Operation Inspection

1. Remove the OCV. Service and Repair

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. Service and Repair

3. Verify that the battery is fully charged. Testing and Inspection

- If not as specified, recharge the battery. Procedures

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





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. Service and Repair

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. Service and Repair

6. Install the OCV. Service and Repair