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EC-60 < SYSTEM DESCRIPTION > [VQ35DE] COOLING FAN CONTROL COOLING FAN CONTROL System Diagram INFOID:0000000005536506 System Description INFOID:0000000005536507 INPUT/OUTPUT SIGNAL CHART *1: The ECM determines the start signal status by the signals of engine speed and battery voltage. *2: This signal is sent to ECM via the CAN communication line. SYSTEM DESCRIPTION The ECM controls the cooling fan corresponding to the vehicle speed, engine coolant temperature, refrigerant JMBIA1857GB Sensor Input signal to ECM ECM function Actuator Crankshaft position sensor (POS) Engine speed* 1 Piston position Cooling fan IPDM E/R ↓ Cooling fan relay ↓ Cooling fan motor Engine coolant temperature sensor Engine coolant temperature Refrigerant pressure sensor Refrigerant pressure Battery Battery voltage* 1 Combination meter Vehicle speed* 2 BCM Air conditioner ON signal* 2 |