WATER FLOW CONTROL [WITH CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5)]

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Outline

• The PCM adjusts the engine coolant control valve and supplies engine coolant to the appropriate engine coolant passage according to the changes in the engine coolant temperature.

• By blocking each water passage before the engine warms up, and suppressing heat radiation, the temperature of the internal wall of the cylinder is quickly increased to improve fuel economy. (SKYACTIV-G 2.0)

Block Diagram

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Operation

Operation condition

• Passage between coolant control valve and water pump (SKYACTIV-G 2.0)

― Constant circulation

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• Passage between coolant control valve and ATF, heater core

― Condition before engine warm-up

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• Passage between coolant control valve and radiator

― Engine warmed up

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