id01121a226500

Inspect Coolant Switching Valve

Warning

• When removing the cooling system cap, cover the cooling system cap with a clean cloth and remove it slowly.

Note

• Verify the servicing history and if air infiltration in the coolant passage is suspected, perform air bleeding according to the servicing location before inspection. (See ENGINE COOLANT REPLACEMENT [PYUL].)(See e-SKYACTIV PHEV COOLANT REPLACEMENT.)

• The coolant switching valve uses a waterproof connector. Perform a DTC/visual inspection because the voltage/waveform cannot be inspected.

DTC inspection (coolant switching valve No.1)

Note

• Connect the M-MDS to the DLC-2 and perform the procedure.

1.Using the M-MDS, perform a DTC inspection and verify if any coolant switching valve No.1-related DTCs are detected. (Refer to [DTC INSPECTION] in the troubleshooting manual)

DTC is detected

• Inspect the possible causes of the detected DTCs starting from the top. (Refer to [DTC TABLE [ECM (e-SKYACTIV PHEV)]] in the troubleshooting manual)

― If the malfunction has not been resolved, replace coolant switching valve No.1. (See COOLANT SWITCHING VALVE (CSV) REMOVAL/INSTALLATION [PYUL].)

No DTC is detected

• Perform a visual inspection. (See Visual inspection (coolant switching valve No.1))

Visual inspection (coolant switching valve No.1)

Note

• Perform the procedure with coolant switching valve No.1 removed. (See COOLANT SWITCHING VALVE (CSV) REMOVAL/INSTALLATION [PYUL].)

1.Inspect coolant switching valve No.1 for the following.

• Damage or cracking

• Clogging with dirt or foreign matter in the coolant passage of coolant switching valve No.1

• Coolant switching valve No.1 is open (normal condition)

If a malfunction occurs

• Repair or replace the malfunctioning location. (See COOLANT SWITCHING VALVE (CSV) REMOVAL/INSTALLATION [PYUL].)

DTC inspection (coolant switching valve No.2)

Note

• Connect the M-MDS to the DLC-2 and perform the procedure.

1.Using the M-MDS, perform a DTC inspection and verify if any coolant switching valve No.2-related DTCs are detected. (Refer to [DTC INSPECTION] in the troubleshooting manual)

DTC is detected

• Inspect the possible causes of the detected DTCs starting from the top. (Refer to [DTC TABLE [ECM (e-SKYACTIV PHEV)]] in the troubleshooting manual)

― If the malfunction has not been resolved, replace coolant switching valve No.2. (See COOLANT SWITCHING VALVE (CSV) REMOVAL/INSTALLATION [PYUL].)

No DTC is detected

• Perform a visual inspection. (See Visual inspection (coolant switching valve No.2))

Visual inspection (coolant switching valve No.2)

Note

• Perform the procedure with coolant switching valve No.2 removed. (See COOLANT SWITCHING VALVE (CSV) REMOVAL/INSTALLATION [PYUL].)

1.Inspect coolant switching valve No.2 for the following.

• Damage or cracking

• Clogging with dirt or foreign matter in the coolant passage of the coolant switching valve No.2

• Coolant switching valve No.2 is open (normal condition)

If a malfunction occurs

• Repair or replace the malfunctioning location. (See COOLANT SWITCHING VALVE (CSV) REMOVAL/INSTALLATION [PYUL].)