Nissan Maxima. Manual - part 325

DOOR LOCK FUNCTION

DLK-19

< SYSTEM DESCRIPTION >

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DOOR LOCK AND UNLOCK SWITCH : Component Description

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DOOR REQUEST SWITCH
DOOR REQUEST SWITCH : System Diagram

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DOOR REQUEST SWITCH : System Description

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Only when pressing the request switch, it is possible to lock and unlock the door by carrying the Intelligent

Key.

• 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 verifica-

tion using two-way communications between the Intelligent Key and the vehicle (BCM).

CAUTION:

The driver should always carry the Intelligent Key

• If an action that does not meet the operating conditions of the Intelligent Key system is taken, the buzzer

goes off to inform the driver (Warning chime function).

• When a door lock is locked, unlocked or trunk open with request switch or remote controller button opera-

tion, the hazard lamps flash and the Intelligent Key warning buzzer or horn sounds (Hazard and buzzer/horn

reminder function).

• The settings for each function can be changed with the 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 the CONSULT.

OPERATION DESCRIPTION/DOOR LOCK/UNLOCK

• When the BCM detects that each door request switch is pressed, it starts the outside key antenna and inside

key antenna corresponding to the pressed door request switch and transmits the request signal to the Intelli-

gent Key. And then, checks that the Intelligent Key is near the door.

Item

Function

BCM

Controls the door lock function and fuel lid door lock actuator function.

Door lock and unlock switch

Input lock or unlock signal to BCM.

Door lock actuator

Output lock/unlock signal from BCM and locks/unlocks each door.

Fuel lid door lock actuator

Output lock/unlock signal from BCM and locks/unlocks fuel lid door lock actuator.

Door switch

Input door open/close condition to BCM.

Door key cylinder switch

• Input lock or unlock signal to power window main switch.
• Power window main switch transmits door lock/unlock signal to BCM.

Combination meter

• Receive buzzer signal from BCM via CAN communication line, and sounds the buzzer.
• Transmits vehicle speed signal to BCM via CAN communication line.

TCM

Transmit shift position signal to BCM via CAN communication line.

ALKIA1656GB

DLK-20

< SYSTEM DESCRIPTION >

DOOR LOCK FUNCTION

• If the Intelligent Key is within the outside key antenna detection area, it receives the request signal and

transmits the key ID signal to the BCM via remote keyless entry receiver.

• BCM receives the key ID signal and compares it with the registered key ID.

• BCM sends the door lock/unlock signal and sounds Intelligent Key buzzer warning (lock: 2 times, unlock: 1

time) at the same time as a reminder.

• With the doors locked, when either door request switch is pressed, that door is unlocked. When the same

request switch is pressed again within 60 seconds, all doors and trunk are unlocked.

• With door(s) unlocked, when either door request switch is pressed, all doors and trunk are locked.

OPERATION CONDITION

If the following conditions are not satisfied, door lock/unlock operation is not performed even if the request

switch is operated.

*: Even with a registered Intelligent Key remaining inside the vehicle, door locks can be unlocked from outside of the vehicle with a spare
Intelligent Key as long as key IDs are different.

OUTSIDE KEY ANTENNA DETECTION AREA

The outside key antenna detection area of door lock/unlock function

is in the range of approximately 80 cm (31.50 in) surrounding the

driver and passenger door handles (1).

SELECTIVE UNLOCK FUNCTION

When an LOCK signal is sent from door request switch (driver side or passenger side), all doors will be locked.

When an UNLOCK signal is sent from door request switch (driver side or passenger side) once, driver's door

will be unlocked.

Then, if an UNLOCK signal is sent from door request switch (driver side and passenger side) again within 60

seconds, all other door will be unlocked.

HAZARD AND BUZZER REMINDER FUNCTION

During lock, unlock, or trunk opening operation by each request switch, the hazard warning lamps and Intelli-

gent Key warning buzzer will blink or honk as a reminder.

When doors are locked, unlocked by each request switch, IPDM E/R honks Intelligent Key warning buzzer as

a reminder and transmits hazard request signal to BCM via CAN communication line.

BCM flashes hazard warning lamps as a reminder.

Operating function of hazard warning lamps and buzzer reminder

How to change hazard and buzzer reminder mode

Refer to 

DLK-53, "INTELLIGENT KEY : CONSULT Function (BCM - INTELLIGENT KEY)"

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AUTO DOOR LOCK FUNCTION

Each request switch operation

Operation condition

Lock operation

• All doors are closed
• Ignition switch is in OFF position
• Intelligent Key is out of key slot
• Intelligent Key is outside the vehicle
• Intelligent Key is within outside key antenna detection area

Unlock Operation

• Intelligent Key is outside the vehicle
• Intelligent Key is within outside key antenna detection area *

JMKIA0103GB

Operation

Hazard warning lamps flash

Intelligent Key warning buzzer honk

Unlock

Once

Once

Lock

Twice

Twice

Trunk open

—

Four times

DOOR LOCK FUNCTION

DLK-21

< SYSTEM DESCRIPTION >

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When all doors are locked, ignition switch is in OFF position and key switch is OFF (Intelligent Key is not

inserted in key slot), doors are unlocked with door request switch

When BCM does not receive the following signals within 60 seconds, all doors are locked.

• Door switch is ON (door is opened)

• Door is locked

• Ignition switch is ON (ignition switch is pressed)

• Key switch is ON (Intelligent Key is inserted in key slot)

Auto door lock mode can be changed by “AUTO LOCK SET” mode in “WORK SUPPORT”. Refer to 

DLK-53,

"INTELLIGENT KEY : CONSULT Function (BCM - INTELLIGENT KEY)"

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ROOM LAMP OPERATION

When the following conditions are met:

• Condition of interior lamp switch is in DOOR position

• Door switch OFF (all the doors are closed)

Intelligent Key system turns on interior lamp (for up to 30 seconds maximum) by receiving UNLOCK signal

from door request switch. For detailed description, refer to 

DLK-17, "DOOR LOCK AND UNLOCK SWITCH :

System Description"

.

LIST OF OPERATION RELATED PARTS

Parts marked with 

× are the parts related to operation.

Door lock function

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Door lock/unlock function by request switch

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Hazard and buzzer reminder function for door lock/unlock 
operation

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Key reminder function

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Selective unlock function by request switch
(Driver side)

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Selective unlock function by request switch
(Passenger side)

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Auto door lock function

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DLK-22

< SYSTEM DESCRIPTION >

DOOR LOCK FUNCTION

DOOR REQUEST SWITCH : Component Parts Location

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AWKIA1693ZZ