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Home >> Nissan-Datsun >> 2013 >> Quest LE >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System (Introduction) >> System Description >> System >> Fuel Pump Control Module (FPCM) >> FUEL PUMP CONTROL MODULE (FPCM): System Description >> Input/Output Signal Chart
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Input/Output Signal Chart

Sensor Input signal to ECM ECM function Actuator
Crankshaft position sensor (POS) Engine speed(1) Fuel pump control FPCM
↓
Fuel pump
Camshaft position sensor (PHASE)
Engine coolant temperature sensor Engine coolant temperature
Mass air flow sensor Amount of intake air
Battery Battery voltage(1)
(1) ECM determines the start signal status by the signals of engine speed and battery voltage.