DESCRIPTION & OPERATION
The engine cooling system consists of a down-flow radiator which features high heat-dissipation performance, an electric motor fan, a water pump, a thermostat, and a coolant temperature sensor (thermometer). The reserve tank is designed to eliminate the need for replenishing coolant.
The electric coolant fan is controlled by the Electronic Control Unit (ECU). The ECU sends an ON or OFF switch signal and a LO (low), MID (medium), or HI (high) switch signal to the radiator main fan and sub fan. This is done in response to signals from the water temperature sensor, vehicle speed sensor 2, A/C switch, and trinary switch. (Scheme 3)
