Input/Output Signal Chart

WARNING: This page is about a different car, the 2013 Infiniti M56. 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

Engine speed⁽¹⁾
Piston position

Ignition timing control

Ignition coil (with power transistor)

Camshaft position sensor

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

TCM

Gear position

Battery

Battery voltage⁽¹⁾

Knock sensor

Engine knocking

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.