Input/Output Signal Chart

WARNING: This page is about a different car, the 2019 Nissan Armada and 2018 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.

Sensor	Input signal to ECM	ECM function	Actuator
Crankshaft position sensor Camshaft position sensor	Engine speed* ¹ Piston position	EVAP canister purge flow control	EVAP canister purge volume control solenoid valve
Mass air flow sensor	Amount of intake air
Engine coolant temperature sensor 1	Engine coolant temperature
Battery	Battery voltage* ¹
Throttle position sensor	Throttle position
Accelerator pedal position sensor	Accelerator pedal position
Air fuel ratio (A/F) sensor 1	Density of oxygen in exhaust gas (Mixture ratio feedback signal)
Fuel tank temperature sensor	Fuel temperature in fuel tank
EVAP control system pressure sensor	Pressure in purge line
Combination meter	Vehicle speed* ²

*1: ECM determines the start signal status by the signals of engine speed and battery voltage.

*2: This signal is sent to the ECM via the CAN communication line.