System Diagram

WARNING: This page is about a different car, the 2020 Infiniti QX50. However, it is still accessible from the selected car via links, so may be relevant.

Courtesy of NISSAN NORTH AMERICA, INC.

Component parts	Function
Crankshaft position sensor	Crankshaft position sensor
Mass Air Flow Sensor (With Intake Air Temperature Sensor 1)	Mass Air Flow Sensor (With Intake Air Temperature Sensor 1)
Engine Coolant Temperature Sensor 1	Engine Coolant Temperature Sensor
Engine Coolant Temperature Sensor 2	Engine Coolant Temperature Sensor
Engine Oil Temperature Sensor	Engine Oil Temperature Sensor
Battery	ECM receives the battery voltage signal.
A/C auto amp.	ECM receives the cooling fan request signal via CAN communication. ECM transmits the refrigerant pressure signal via CAN communication.
Combination meter	ECM receives the vehicle speed signal via CAN communication.
ECM	ECM
Multi-way Control Valve	Multi-way Control Valve