Coil Resistance Inspection
1. Disconnect the negative battery cable..
2. Remove the plug hole plate..
3. Disconnect the OCV connector.
4. Measure the resistance between terminals A and B using an ohmmeter.

6.9—7.5 ohms [20°C {68°F}]
If not as specified, replace the OCV..
5. Install in the reverse order of removal.
Spool Valve Operation Inspection
1. Disconnect the negative battery cable..
2. Remove the OCV..
3. Verify that the spool valve in the OCV is in the maximum valve timing advance position as indicated in the figure.

If not as specified, replace the OCV..
4. Verify that the battery is fully charged..
If not as specified, recharge the battery..
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

5. Apply battery positive voltage between the OCV terminals and verify that the spool valve operates and moves to the maximum valve timing retard position.

If not as specified, replace the OCV..
6. Stop applying battery positive voltage and verify that the spool valve returns to the maximum valve timing advance position.
If not as specified, replace the OCV..
7. Install the OCV..
Lubrication System
Oil Control Valve (OCV) Removal/InstallationPresilencer
Purpose, Function
Reduces the exhaust noise.
Construction
The presilencer is installed to the rear of the TWC.
2WD
AWD
The presilencer consists of the filters, stuffing and wool-stainless.
2WD
AWD
...
Oil Cooler Removal/Installation
WARNING:
Hot engines and engine oil can cause severe burns. Turn off the engine and
wait until it and the engine oil have cooled.
A vehicle that is lifted but not securely supported on safety stands is dangerous.
It can slip or fall, causing death or serious injury. Never work ...
Ion Sensor
Purpose/Function
Detects ion generation in the combustion chamber for detecting pre-ignition.
Detects ions which occur due to fuel combustion as current by applying bias
voltage to the spark plug, which is amplified in the ignition coil internal
circuit and input to the PCM.
...