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Home >> Infiniti >> 2004 >> G35 x >> Repair and Diagnosis >> Engine Performance >> System >> 2004.5 - Engine Control System - Introduction - Sedan >> Engine Control System >> System Chart
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System Chart

SYSTEM CHART

Input (Sensor) ECM Function Output (Actuator)
  • Camshaft position sensor (PHASE)
  • Crankshaft position sensor (POS)
  • Mass air flow sensor
  • Engine coolant temperature sensor
  • Air fuel ratio (A/F) sensor 1
  • Throttle position sensor
  • Accelerator pedal position sensor
  • Park/neutral position (PNP) switch
  • Intake air temperature sensor
  • Power steering pressure sensor
  • Ignition switch
  • Battery voltage
  • Knock sensor
  • Refrigerant pressure sensor
  • Stop lamp switch
  • ASCD steering switch
  • ASCD brake switch
  • ASCD clutch switch
  • Fuel level sensor(1)(3)
  • EVAP control system pressure sensor
  • Fuel tank temperature sensor(1)
  • Heated oxygen sensor2(2)
  • TCM (Transmission control module)(3)
  • Air conditioner switch(3)
  • Wheel sensor(3)
  • Electrical load signal(3)
Fuel injection & mixture ratio control Fuel injector
Electronic ignition system Power transistor
Fuel pump control Fuel pump relay
ASCD vehicle speed control Electric throttle control actuator
On board diagnostic system MIL (On the instrument panel)(4)
Air fuel ratio (A/F) sensor 1 heater control Air fuel ratio (A/F) sensor 1 heater
Heated oxygen sensor 2 heater control Heated oxygen sensor 2 heater
EVAP canister purge flow control EVAP canister purge volume control solenoid valve
Air conditioning cut control Air conditioner relay(4)
Cooling fan control Cooling fan relay(4)
ON BOARD DIAGNOSIS for EVAP system EVAP canister vent control valve
(1) This sensor is not used to control the engine system. This is used only for the on board diagnosis.
(2) This sensor is not used to control the engine system under normal conditions.
(3) This input signal is sent to the ECM through CAN communication line.
(4) This output signal is sent from the ECM through CAN communication line.