Oil Control Valve (OCV) Inspection
OIL CONTROL VALVE (OCV) INSPECTION [MZR 1.5]
Coil Resistance Inspection
1. Disconnect the negative battery cable.
2. Disconnect the OCV connector.
3. Measure the coil resistance between terminals A and B using a tester.
- If not within the specification, replace the OCV. Oil Control Valve (OCV) Removal/Installation
Oil control valve (OCV) coil resistance
- 6.9-7.9 ohms [20°C {68°F}]
4. Connect the OCV connector.
5. Connect the negative battery cable.
Spool Valve Operation Inspection
1. Disconnect the negative battery cable.
2. Remove the OCV. Oil Control Valve (OCV) Removal/Installation
3. Verify that the spool valve inside the OCV is at the maximum valve timing retard position as shown in the figure.
- If it cannot be verified, replace the OCV.
4. Verify that the battery is fully charged. Testing and Inspection
NOTE:
- When applying battery positive voltage between the oil control valve terminals, the connection of the negative and positive cable can be either the A or B terminal.
5. Apply battery positive voltage between oil control valve terminals A and B, and verify that the spool valve operates and moves to the maximum valve timing advance position.
- If there is any malfunction, replace the OCV.
6. Stop applying battery positive voltage and verify that the spool valve returns to the maximum valve timing retard position.
- If it cannot be verified, replace the OCV.
7. Install the OCV. Oil Control Valve (OCV) Removal/Installation
8. Connect the negative battery cable.