Input And Output Signals

INPUT AND OUTPUT SIGNALS

Signal	Unit	Function
Input signals	Manifold absolute pressure sensor	Detects the pressure (measures the absolute pressure) of intake air.
	Mass air flow and intake air temperature sensor	Detects the temperature and amount of intake air.
	Throttle position sensor	Detects the throttle valve position.
	Front oxygen (A/F) sensor	Detects the density of oxygen in exhaust gases at the upstream of the front catalytic converter.
	Rear oxygen sensor	Detects the density of oxygen in exhaust gases at the downstream of the front catalytic converter.
	Crankshaft position sensor	Detects the crankshaft angular position.
	Camshaft position sensor	Detects the combustion cylinder.
	Engine coolant temperature sensor	Detects the engine coolant temperature.
	Knock sensor	Detects engine knocking.
	Accelerator position sensor	Detects the position of the accelerator pedal.
	Exhaust gas temperature sensor	Detects the exhaust gas temperature.
	Fuel temperature sensor	Detects the temperature of the fuel in the fuel tank.
	Fuel tank pressure sensor	Detects the evaporation gas pressure in the fuel tank.
	Ignition switch	Detects operation of the ignition switch.
	Starter switch	Detects the condition of engine cranking.
	Neutral position switch (MT)	Detects that the gear is in neutral.
	Inhibitor switch (AT)	Detects shift positions.
	A/C switch	Detects ON-OFF operation of the A/C switch.
	Power steering switch	Detects the steering condition.
Output signals	Fuel injector	Activates an injector.
	Ignition signal	Turns the primary ignition current ON or OFF.
	Electronic control throttle	Controls motor output to the electronic control throttle.
	Oil flow control solenoid valve	Controls oil pressure for oil flow control solenoid valve.
	Fuel pump control unit	Controls the fuel pump.
	A/C control relay	Turns ON or OFF the A/C control relay.
	Radiator fan control relay	Turns ON or OFF the radiator fan control relay.
	Wastegate control solenoid valve	Controls supercharging pressure
	Engine malfunction indicator light (MIL)	Indicates existence of abnormality.
	Purge control solenoid valve	Controls purge of evaporative gas absorbed by the canister.
	Tumble generator valve actuator	Operates the tumble generator valve.
	Pressure control solenoid valve	Controls evaporation pressure in fuel tank.
	Drain valve	Closes the evaporation line between the fuel tank and canister to detect leakage of evaporation gases.
	Oil flow control solenoid valve	Controls advance and retard angles of the intake valves.
	Heater circuit of front and rear oxygen sensors	Controls the heater of the front and rear oxygen sensors.
	Electronic control throttle motor cut relay	Turns ON-OFF the electronic control throttle motor relay.
	Power supply	Controls ON/OFF of the main power supply relay.