Nissan Sentra B18 (2020-2025) Service Manual / Body Exterior, Doors, Roof & Vehicle Security / Door & Lock :: System Description / System (intelligent Key System) / Intelligent Key System

Nissan Sentra B18 (2020-2025) Service Manual: Intelligent Key System

System Diagram

System Diagram

System Description

System Description

Signal name	Input	Output	Description
Key ID signal	Intelligent Key	Intelligent Key unit	The Intelligent Key unit receives key ID signal inputs and activates the actuators accordingly.
Outside key antenna signal	Outside key antenna	Intelligent Key unit	The Intelligent Key unit receives outside key antenna signals inputs and activates the actuators accordingly.
Inside key antenna signal	Inside key antenna	Intelligent Key unit	The Intelligent Key unit receives inside key antenna signals inputs and activates the actuators accordingly.
Inside key antenna signal	NATS antenna	Intelligent Key unit	The Intelligent Key unit receives inside key antenna signals inputs and activates the actuators accordingly.
Push switch signal	Push-button ignition switch	Intelligent Key unit	The Intelligent Key unit receives push switch signal inputs and activates the actuators accordingly.
Door switch signal	Door switch	BCM	The BCM receives door switch signals inputs and activates the actuators accordingly.
Door unlock sensor signal	Door unlock sensor	BCM	The BCM receives door unlock sensor signal inputs and activates the actuators accordingly.
Trunk opener request switch signal	Trunk opener request switch (if equipped)	BCM	The BCM receives trunk lid opener request switch signal inputs and activates the actuators accordingly.
Trunk lid opener switch signal	Trunk lid opener switch	BCM	The BCM receives trunk lid opener switch signal inputs and activates the actuators accordingly.
Trunk lid lamp switch signal	Trunk lid lamp switch	BCM	The BCM receives trunk lid lamp switch signal inputs and activates the actuators accordingly.
Buzzer output signal	Intelligent Key unit	BCM (CAN)	The BCM receives buzzer output signal inputs and activates the actuators accordingly.
Nissan Sentra Vehicle speed signal	Combination meter	BCM (CAN)	The BCM receives Nissan Sentra vehicle speed signal inputs and activates the actuators accordingly.
Meter display signal	BCM	Combination meter (CAN)	The combination meter receives meter display signal inputs and activates the actuators accordingly.
Door lock/unlock request signal	Intelligent Key unit	BCM (CAN)	The BCM receives door lock/unlock request signal inputs and activates the actuators accordingly.

The Intelligent Key system is a system that makes it possible to lock and unlock the door locks (door lock/unlock function) by carrying the Intelligent Key, which operates based on the results of electronic ID verification using two-way communication between the Intelligent Key and the Nissan Sentra vehicle (Intelligent Key unit).

CAUTION:

The driver should always carry the Intelligent Key.
The settings for each function can be changed with CONSULT.
If an Intelligent Key is lost, a new Intelligent Key can be registered. A maximum of 4 Intelligent Keys can be registered.
It is possible to perform a diagnosis on the system and register an Intelligent Key with CONSULT.
For initialization and registration of Intelligent Keys, refer to CONSULT Immobilizer mode and follow the on-screen instructions.

Function	Description	Refer
Door lock	Lock/unlock can be performed by pressing the request switch.	System Description
Trunk lid opener	The trunk lid can be opened by carrying the Intelligent Key and pressing the trunk lid opener switch.	System Description
Remote keyless entry	Lock/unlock can be performed by pressing the remote controller button of the Intelligent Key.	System Description
Key reminder	The key reminder buzzer sounds a warning if the door is locked with the key left inside the Nissan Sentra vehicle.	System Description
Warning	If an action that does not meet the operating condition of the Intelligent Key system is taken, the buzzer sounds to inform the driver.	System Description
Interior room lamp control	Interior room lamp is controlled according to door lock/unlock state.	System Description
Panic alarm	When Intelligent Key panic alarm button is pressed, horn sounds.	System Description
Engine start	The engine can be turned on while carrying the Intelligent Key.	System Description
Remote engine start	Remote engine start can be preformed by pressing the remote controller button of the Intelligent Key.	System Description

System (intelligent Key System)

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Door Lock Function

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