Nissan Pathfinder (2012 year). Manual - part 140

DOOR LOCK FUNCTION

DLK-15

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

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DOOR LOCK FUNCTION

DOOR LOCK AND UNLOCK SWITCH
DOOR LOCK AND UNLOCK SWITCH : System Diagram

INFOID:0000000007355373

DOOR LOCK AND UNLOCK SWITCH : System Description

INFOID:0000000007355374

DOOR LOCK FUNCTION

Functions Available by Operating the Door Lock and Unlock Switches on Driver Door and Passenger Door

• Interlocked with the locking operation of door lock and unlock switch, door lock actuators of all doors are

locked, back door opener switch is disabled, and mechanical glass hatch switch is disabled.

• Interlocked with the unlocking operation of door lock and unlock switch, door lock actuators of all doors are

unlocked, back door opener switch is enabled, and mechanical glass hatch switch is enabled.

• When the back door opener switch is pressed, the Intelligent Key unit terminal 24 receives signal from the

back door opener switch terminal 1.

• The Intelligent Key unit checks the transmission range switch position and vehicle speed. If the back door

operating enable conditions are met, it sends a signal through terminal 23 to the BCM terminal 30. 

• When the BCM receives the signal, if the back door operating enable conditions are met, it sends a signal

through terminal 53 to open the back door latch.

Functions Available by Operating the Key Cylinder Switch on Driver Door

• Interlocked with the locking operation of door key cylinder, door lock actuators of all doors are locked, back

door opener switch is disabled, and mechanical glass hatch switch is disabled.

Selective Unlock Operation

• When door key cylinder is unlocked, door lock actuator driver side is unlocked.

• When door key cylinder is unlocked for the second time within 5 seconds after the first operation, door lock

actuators on all doors are unlocked.

Select unlock operation mode can be changed using DOOR LOCK-UNLOCK SET mode in “WORK SUP-

PORT”. Refer to 

BCS-17, "DOOR LOCK : CONSULT Function (BCM - DOOR LOCK)"

.

Key Reminder System

Refer to 

DLK-32, "System Description"

.

ALKIA0178GB

Switch

Input/output signal to BCM

BCM function

Actuator

Main power window and door 
lock/unlock switch

Door lock/unlock signal

Door lock/unlock control

Door lock actuators

Power window and door lock/
unlock switch

Door key cylinder switch

August 2012

2012 Pathfinder

2012 Pathfinder

DLK-16

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

DOOR LOCK FUNCTION

DOOR LOCK AND UNLOCK SWITCH : Component Parts Location

INFOID:0000000007355375

DOOR LOCK AND UNLOCK SWITCH : Component Description

INFOID:0000000007355376

1.

Key switch and ignition knob switch M66 2.

BCM M18, M19, M20
(view with instrument panel removed)

3.

Front door lock assembly LH (key 
cylinder switch) D14
Front door lock actuator RH D114

4.

Main power window and door lock/un-
lock switch D7, D8

5.

Front door switch 
LH B8
RH B108

6.

Rear door switch
LH B18
RH B116

7.

Power window and door lock/unlock 
switch RH D105

8.

Back door latch (door ajar switch) 
D502

9.

Rear door lock actuator
LH D205
RH D305

10. Passenger select unlock relay M11

(view with instrument panel LH removed)

ALKIA1846ZZ

Item

Function

BCM

Controls the door lock function and room lamp function.

Door lock and unlock switch

Transmits lock or unlock signal to BCM.

Door lock actuator

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

August 2012

2012 Pathfinder

2012 Pathfinder

DOOR LOCK FUNCTION

DLK-17

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

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DOOR REQUEST SWITCH
DOOR REQUEST SWITCH : System Diagram

INFOID:0000000007355377

DOOR REQUEST SWITCH : System Description

INFOID:0000000007355378

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 or unlocked with request switch or remote controller button operation, the hazard

lamps flash and the Intelligent Key warning buzzer or horn sounds (Hazard and buzzer/horn reminder func-

tion).

• 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, check that the Intelligent Key is near the door.

• 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.

OPERATION CONDITION

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

switch is operated.

Door switch

Transmits door open/close condition to BCM.

Passenger select unlock relay

Enables or disables the unlocking of rear doors when this Intelligent Key option is selected.

Item

Function

ALKIA1698GB

August 2012

2012 Pathfinder

2012 Pathfinder

DLK-18

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

DOOR LOCK FUNCTION

*: 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).

OUTSIDE KEY ANTENNA DETECTION AREA

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

function is in the range of approximately 80 cm (31.50 in) surround-

ing the back door handle (1).

SELECTIVE UNLOCK FUNCTION

When a 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 5

seconds, all other doors will be unlocked.

HAZARD AND BUZZER REMINDER FUNCTION

During lock or unlock operation by each request switch, the hazard warning lamps and Intelligent 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 

BCS-23, "INTELLIGENT KEY : CONSULT Function (BCM - INTELLIGENT KEY)"

.

AUTO RELOCK FUNCTION

Each request switch operation

Operation condition

Lock operation

• All doors are closed
• Ignition switch is in OFF position
• 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 *

ALKIA0582ZZ

ALKIA0581ZZ

Operation

Hazard warning lamps flash

Intelligent Key warning buzzer sounds

Unlock

Once

Once

Lock

Twice

Twice

Back door open

—

Four times

August 2012

2012 Pathfinder

2012 Pathfinder

DOOR LOCK FUNCTION

DLK-19

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

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When all doors are locked, ignition switch is in OFF position and key switch is OFF, 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

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

BCS-17,

"DOOR LOCK : CONSULT Function (BCM - DOOR LOCK)"

.

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-15, "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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BCM

Hazard warning lamp

Door lock/unlock function by request switch

×

×

×

×

×

×

×

×

×

×

Hazard and buzzer reminder function for door lock/unlock 
operation

×

×

×

×

Key reminder function

×

×

×

×

×

×

×

×

×

×

×

×

Selective unlock function by request switch
(Driver side)

×

×

×

×

×

×

×

Selective unlock function by request switch
(Passenger side)

×

×

×

×

×

×

×

Auto door lock function

×

×

×

×

×

×

×

August 2012

2012 Pathfinder

2012 Pathfinder

DLK-20

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

DOOR LOCK FUNCTION

DOOR REQUEST SWITCH : Component Parts Location

INFOID:0000000007355379

ALKIA1166ZZ

August 2012

2012 Pathfinder

2012 Pathfinder

DOOR LOCK FUNCTION

DLK-21

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

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1.

Horn E3
(Behind front combination lamp LH)

2.

Intelligent Key warning buzzer E60

3.

IPDM E/R E122, E124
(view with cover removed)

4.

Horn relay H-1

5.

Remote keyless entry receiver M67
(view with glove box removed)

6.

Combination meter M24

7.

Intelligent Key unit M164
(view with glove box removed)

8.

BCM M18, M19, M20
(view with instrument panel LH removed)

9.

Steering lock solenoid M65
(view with steering column removed)

10. Key switch and ignition knob switch 

M66

11. Instrument panel area antenna M68

(view with center console cover removed)

12. A/T shift selector [park position switch 

(Intelligent Key system)] M158

13. Center console area antenna M212 

(view with center console removed)

14. Luggage area antenna B129

(behind right side of 3rd row seat)

15. Rear bumper antenna C127

(view with rear bumper removed)

16. Back door latch (door ajar switch) 

D502

17. Back door request switch D552

18. Back door opener switch D511

19. Front outside antenna LH D15

Front outside antenna RH D115

20. Front door request switch LH D16

Front door request switch RH D116

21. Front door lock assembly LH (door 

unlock sensor) D14

22. Front door switch LH B8

RH B108

23. Rear door switch LH B18

RH B116

ALKIA1699ZZ

August 2012

2012 Pathfinder

2012 Pathfinder

DLK-22

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

DOOR LOCK FUNCTION

DOOR REQUEST SWITCH : Component Description

INFOID:0000000007355380

INTELLIGENT KEY
INTELLIGENT KEY : System Diagram

INFOID:0000000007355381

INTELLIGENT KEY : System Description

INFOID:0000000007355382

The Intelligent Key has the same functions as the remote control entry system. In addition to other safety fea-

tures, it can be used to lock and unlock all doors including the back door.

OPERATION DESCRIPTION/DOOR LOCK/UNLOCK FUNCTION

• When door lock/unlock button of the Intelligent Key is pressed, lock signal or unlock signal is transmitted

from Intelligent Key to BCM via remote keyless entry receiver and Intelligent Key unit.

• When BCM receives the door lock/unlock signal, it operates door lock actuator, flashes the hazard lamp

(lock: 2 times, unlock: 1 time) and horn chirp signal to IPDM E/R at the same time as a reminder.

• IPDM E/R honks horn (lock: 2 times) as a reminder

OPERATION CONDITION

OPERATION AREA

• Operating Range

Item

Function

Intelligent Key unit

Receives lock/unlock signal from remote keyless entry receiver, and then transmits to BCM.

BCM

Controls the door lock function and room lamp function.

Door lock and unlock switch

Transmits lock or unlock signal to BCM.

Door lock actuator

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

Door switch

Transmits door open/close condition to BCM.

Remote keyless entry receiver

Receives lock/unlock signal from the Intelligent Key, and then transmits to Intelligent Key unit.

Request switch

Transmits lock/unlock operation to Intelligent Key unit.

Intelligent Key

Transmits button operation to remote keyless entry receiver.

Outside key antenna

Detects if Intelligent Key is outside the vehicle.

Inside key antenna

Detects if Intelligent Key is inside the vehicle. 

Intelligent Key warning buzzer

Warns the user of the lock/unlock condition and inappropriate operations with the buzzer sound.

ALKIA1698GB

Remote controller operation

Operation condition

Operation

Lock

• All doors closed

All doors lock

Unlock

• Intelligent Key is out of the ignition key cylinder

All doors unlock

August 2012

2012 Pathfinder

2012 Pathfinder