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COOLANT SWITCHING VALVE (CSV) INSPECTION [SKYACTIV-X 2.0]

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DTC Inspection

1. Connect the M-MDS to the DLC-2.

2. Start the engine and warm it up completely.

3. Turn the A/C switch off and leave the engine idling for 5 min.

4. Using the M-MDS, perform a DTC inspection and verify that P26A3:00 is not stored. (See DTC INSPECTION.)

• If P26A3:00 is stored, repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-X)].)

5. Perform the PID/data monitor inspection. (See PID/DATA Monitor Inspection.)

PID/DATA Monitor Inspection

1. Connect the M-MDS to the DLC-2.

2. Switch the ignition ON (engine off).

3. Display simulation item ENG_COOL_VLV_POS_DUTY using the M-MDS. (See SIMULATION INSPECTION.)(See SIMULATION TABLE [PCM (SKYACTIV-X)].)

4. Verify that an operation sound is heard from the coolant switching valve when the valve is driven with the simulation item ENG_COOL_VLV_POS_DUTY set to 50%.

• If it cannot be verified, inspect visually. (See Visual Inspection.)

Visual Inspection

Warning

• A hot engine can cause severe burns. Turn off the engine and wait until it is cool before removing the coolant switching valve.

1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(E)].)

2. Remove the coolant switching valve. (See COOLANT SWITCHING VALVE (CSV) REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)

3. Visually inspect the coolant switching valve for the following:

• Damage or cracking

• Clogging with dirt or foreign matter in the coolant passage of the coolant switching valve

• Coolant switching valve is open (normal condition)

― If there is any malfunction, repair or replace the coolant switching valve. (See COOLANT SWITCHING VALVE (CSV) REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)