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Input/Output Signal Chart

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
INPUT/OUTPUT SIGNAL CHART

Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor (POS) Engine speed(1)
Piston position
Ignition timing control Ignition coil (with power transistor)
Camshaft position sensor (PHASE)
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
Battery Battery voltage(1)
Knock sensor Engine knocking
TCM Gear position
Unified meter and A/C amp. 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.