System Diagram

Courtesy of NISSAN NORTH AMERICA, INC.

Components	Function
Crankshaft position sensor	Refer to Crankshaft Position Sensor .
Engine coolant temperature sensor	Refer to Engine Coolant Temperature Sensor .
Battery	ECM detects the battery voltage.
ECM	Refer to ECM .
Intake manifold tuning valve motor	Refer to Intake Manifold Tuning Valve .