ENGINE COOLANT FAN CONTROL (AFTER-COOLING CONTROL) [SKYACTIV-G 2.0, SKYACTIV-G 2.5]

id0170q1001600

Purpose of Adoption

• After-cooling has been adopted due to the possibility that the engine may not restart as a result of a fuel supply malfunction caused by high temperature.

Service Point

• If the ignition is switched off directly after continuous high engine-load travel, the PCM operates (demand airflow volume: Low) the cooling fan for a maximum of 9 minutes when all of the following conditions are met due to the possibility that the engine may not restart as a result of a fuel supply malfunction caused by the high temperature.

― Engine coolant temperature: 90 degrees C or more

― Accumulated amount of engine heat is extremely high

― Driving record for vehicle speed of 25 km/h or more available

Common Inquiry

• Not applicable

Other

• From SKYACTIV, the operation frequency of the cooling fan has been reduced more than previously because the temperature estimation control for each part necessary to after-cooling has been reinforced to keep the cooling fan operation frequency to the minimum.