Spool Valve Operation Inspection - Mazda 3 Workshop Manual

Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
2. Disconnect the negative battery cable.
3. Disconnect the OCV connector.
4. Measure the coil resistance between terminals A and B using a tester.
• If not within the specification, replace the OCV.
Standard
6.9-7.9 ohms [20°C {68°F}]
5. Connect the OCV connector.

Spool Valve Operation Inspection

1. Remove the battery cover.
2. Disconnect the negative battery cable.
3. Remove the OCV. (See
4. 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.
5. Verify that the battery is fully charged.
6. 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.
Downloaded from
OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION
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