OIL CONTROL VALVE (OCV) INSPECTION [MZR 2.3 DISI Turbo]

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Coil Resistance Inspection

1.  Remove the battery cover. (See BATTERY REMOVAL/INSTALLATION [MZR 2.3 DISI Turbo].)

2.  Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.3 DISI Turbo].)

3.  Disconnect the OCV connector.

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

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•  If not as specified, replace the OCV. (See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION [MZR 2.3 DISI Turbo].)

5.  Install in the reverse order of removal.

Spool Valve Operation Inspection

1.  Remove the OCV. (See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION [MZR 2.3 DISI Turbo].)

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

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•  If not as specified, replace the OCV. (See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION [MZR 2.3 DISI Turbo].)

3.  Verify that the battery is fully charged. (See BATTERY INSPECTION [MZR 2.3 DISI Turbo].)

•  Recharge it if necessary. (See BATTERY RECHARGING [MZR 2.3 DISI Turbo].)

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.

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•  If not as specified, replace the OCV. (See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION [MZR 2.3 DISI Turbo].)

Note

•  When applying battery positive voltage between the OCV terminals, the connection can be either of the following:

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―  Positive battery cable to terminal A, negative battery cable to terminal B

―  Positive battery cable to terminal B, negative battery cable to terminal A

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. (See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION [MZR 2.3 DISI Turbo].)

6.  Install the OCV. (See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION [MZR 2.3 DISI Turbo].)