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EC-36 < FUNCTION DIAGNOSIS > [VK56DE] COOLING FAN CONTROL COOLING FAN CONTROL Description INFOID:0000000005149071 SYSTEM DESCRIPTION Cooling Fan Control *1: The ECM determines the start signal status by the signals of engine speed and battery voltage. The ECM controls the cooling fan corresponding to the vehicle speed, engine coolant temperature, refrigerant pressure, and air conditioner ON signal. The control system has 2-step control [HI/OFF]. Cooling Fan Operation Sensor Input signal to ECM ECM function Actuator Crankshaft position sensor (POS) Engine speed* 1 Cooling fan IPDM E/R Battery Battery voltage* 1 Wheel sensor Vehicle speed* 2 Engine coolant temperature sensor Engine coolant temperature Air conditioner switch Air conditioner ON signal* 2 Refrigerant pressure sensor Refrigerant pressure PBIB2060E |