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ELECTRIC IGNITION SYSTEM EC-487 < FUNCTION DIAGNOSIS > [VQ40DE] C D E F G H I J K L M A EC N P O ELECTRIC IGNITION SYSTEM System Description INFOID:0000000005273474 INPUT/OUTPUT SIGNAL CHART *1: This signal is sent to the ECM via the CAN communication line. *2: ECM determines the start signal status by the signals of engine speed and battery voltage. SYSTEM DESCRIPTION Firing order: 1-2-3-4-5-6 Sensor Input Signal to ECM ECM function Actuator Crankshaft position sensor (POS) Engine speed* 2 Piston position Ignition timing Power transistor Camshaft position sensor (PHASE) Mass air flow sensor Amount of intake air Engine coolant temperature sensor Engine coolant temperature Throttle position sensor Throttle position Accelerator pedal position sensor Accelerator pedal position Knock sensor Engine knocking Park/neutral position (PNP) switch (M/T) Gear position Battery Battery voltage* 2 Wheel sensor Vehicle speed* 1 |