System Diagram

Courtesy of NISSAN NORTH AMERICA, INC.

Component	Function
Intelligent Key	Operates based on the results of electronic ID verification using two-way communication between the Intelligent Key and the vehicle (Intelligent Key unit).
Each door request switch	Detects door lock/unlock operation.
Push-button ignition switch	Refer to Push-Button Ignition Switch .
Each door switch	Detects door open/close condition.
Combination switch	Inputs the each switch condition signal to BCM.
Front power window motor LH	Transmits front power window open/close signal to BCM via LIN communication.
Intelligent Key unit	Transmits push-button ignition switch status signal and door lock/unlock request signal to BCM via CAN communication.
ABS actuator and electric unit (control unit)	Transmits vehicle speed signal to the BCM via CAN communication.
TCU	Transmits auto ACC request signal to BCM via CAN communication.
BCM	BCM operates the auto ACC function based on each signal state.
Accessory relay	Controlled by BCM and turns ON/OFF the battery power supply to each parts.
Audio/Navigation	Transmits auto ACC request signal to BCM via CAN communication. Auto ACC status signal receives from BCM via CAN communication.