Nissan Pathfinder (2012 year). Manual - part 165

DOOR LOCK FUNCTION

DLK-215

< SYSTEM DESCRIPTION >

[WITHOUT INTELLIGENT KEY SYSTEM]

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DOOR LOCK FUNCTION

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

INFOID:0000000007355557

DOOR LOCK AND UNLOCK SWITCH : System Description

INFOID:0000000007355558

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.

• Provided the passenger front door is unlocked, when the back door opener switch is pressed, the BCM ter-

minal 30 receives signal from the back door opener switch terminal 1, through terminal 2, to front door lock

assembly RH (door unlock sensor) terminal 1, through terminal 3, to ground.

• 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-259, "Diagnosis Procedure"

.

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 actuator

Power window and door lock/
unlock switch

Door key cylinder switch

August 2012

2012 Pathfinder

2012 Pathfinder

DLK-216

< SYSTEM DESCRIPTION >

[WITHOUT INTELLIGENT KEY SYSTEM]

DOOR LOCK FUNCTION

DOOR LOCK AND UNLOCK SWITCH : Component Parts Location

INFOID:0000000007355559

DOOR LOCK AND UNLOCK SWITCH : Component Description

INFOID:0000000007355560

1.

Key switch M27

2.

BCM M18, M19, M20

3.

Front door lock assembly LH (key 
cylinder switch) D14
Front door lock assembly RH (door 
lock actuator) D119
Front door lock assembly RH (door 
unlock sensor) D103

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 opener switch D510

9.

Back door latch (door ajar switch) 
D502

10. Rear door lock actuator LH D205

RH D305

11. Combination meter M24

ALKIA1700ZZ

Item

Function

BCM

Controls the door lock function and room lamp function.

Door lock and unlock switch

Transmits lock or unlock signal to BCM.

August 2012

2012 Pathfinder

2012 Pathfinder

DOOR LOCK FUNCTION

DLK-217

< SYSTEM DESCRIPTION >

[WITHOUT INTELLIGENT KEY SYSTEM]

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REMOTE KEYLESS ENTRY
REMOTE KEYLESS ENTRY : System Diagram

INFOID:0000000007355561

REMOTE KEYLESS ENTRY : System Description

INFOID:0000000007355562

OPERATED PROCEDURE

• When the keyfob is operated, the signal from the keyfob is sent and the remote keyless entry receiver

receives the signal and sends it to the BCM. The BCM only locks/unlocks the doors if the ID number

matches. (Remote control entry functions)

• Using the keyfob, the transmitter sends radio waves to the remote keyless entry receiver, which then sends

the received waves to the BCM. Only if the ID number matches does the BCM lock/unlock the doors.

(Remote control door function)

• Unless the key is inserted into the ignition key cylinder or one of the doors is opened within 1 minute after the

UNLOCK switch on the keyfob is pressed, all the doors are automatically locked. (Auto lock function)

• When a door is locked or unlocked, the vehicle turn signal lamps flash and the horn sounds to verify opera-

tion. (Active check function)

• When the key is in the ignition key cylinder (when the key switch is ON) and one of the doors is open, the

door lock function does not work even when the door lock is operated with the keyfob. 

• Keyfob ID set up is available.

• If a keyfob is lost, a new keyfob can be set up. A maximum of 5 IDs can be set up simultaneously.

REMOTE CONTROL ENTRY FUNCTIONS

• When a button on the keyfob is operated, the signal is sent from the keyfob and received by the remote key-

less entry receiver.

• The received signal is sent to the BCM and compared with the registered ID number.

• If the ID number matches, the BCM sends the lock/unlock signal to each door lock actuator. 

• When the door lock actuators receive this signal, each operates to lock/unlock its door.

• BCM locks all doors with input of LOCK signal from keyfob.

• When an UNLOCK signal is sent from keyfob once, driver's door will be unlocked.

• Then, if an UNLOCK signal is sent from keyfob again within 5 seconds, all other doors will be unlocked.

REMOTE CONTROL ENTRY OPERATION CONDITIONS

Door lock actuator

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

Door switch

Transmits door open/close condition to BCM.

Item

Function

ALKIA1171GB

Keyfob operation

Operation condition

Door lock operation (locking)

• With key removed (key switch: OFF)
• Closing all doors (door switch: OFF)

Door lock operation (unlocking)

With key removed (key switch: OFF)

August 2012

2012 Pathfinder

2012 Pathfinder

DLK-218

< SYSTEM DESCRIPTION >

[WITHOUT INTELLIGENT KEY SYSTEM]

DOOR LOCK FUNCTION

AUTO RELOCK FUNCTION

Operation Description

• Unless the key is inserted into the ignition key cylinder, one of the doors is opened, or the keyfob is operated

within 1 minute after a door lock is unlocked by keyfob operation, all the doors are automatically locked.

The 1 minute timer count is executed by the BCM and after 1 minute, the BCM sends the lock signal to all

doors.

Lock operations are the same as for the remote control entry function.

ACTIVE CHECK FUNCTION

Operation Description

When a door is locked or unlocked by keyfob operation, the vehicle turn signals flash and the horn sounds to

verify operation.

• When a button on the keyfob is operated, the signal is sent from the remote controller and received by the

keyless remote entry receiver.

• The received signal is sent to the BCM and compared with the registered ID number.

• If the ID number matches, the BCM uses communication to send the turn signal flashing and horn signal to

the IPDM E/R.

• The IPDM E/R flashes the turn signal lamps and sounds the horn for each keyfob operation.

Operating function of hazard and horn reminder

HAZARD AND HORN REMINDER

BCM output to IPDM E/R for horn reminder signal as DATA LINE (CAN-H line and CAN-L line).

The hazard and horn reminder has C mode (horn chirp mode) and S mode (non-horn chirp mode).

How to change hazard and horn reminder mode

 With CONSULT

Hazard and horn reminder can be changed using “WORK SUPPORT” mode in “MULTI ANSWER BACK SET".

 Without CONSULT

Refer to Owner's Manual for instructions.

INTERIOR LAMP OPERATION

When the following input signals are both supplied:

• all door switches are in the OFF position. (when all the doors are closed);

• interior lamp switch is in DOOR position.

Remote keyless entry system turns on interior lamp and ignition keyhole illumination (for 30 seconds) with

input of UNLOCK signal from keyfob.

PANIC ALARM OPERATION

When key switch is OFF (when ignition key is not inserted in key cylinder), remote keyless entry system turns

on and off horn and headlamp intermittently with input of PANIC ALARM signal from keyfob.

The alarm automatically turns off after 25 seconds or when BCM receives any signal from keyfob.

KEYLESS POWER WINDOW DOWN (OPEN) OPERATION

When keyfob unlock switch is turned ON with ignition switch OFF, and the switch is detected to be ON contin-

uously for more than 3 second, the driver's door and passenger's door power windows are simultaneously

opened.

Power window is operated to open and the operation continues as long as the keyfob unlock switch is

pressed. 

C mode

S mode

Keyfob operation

Lock

Unlock

Lock

Unlock

Hazard warning lamp 
flash

Twice

Once

Twice

—

Horn sound

Once

—

—

—

August 2012

2012 Pathfinder

2012 Pathfinder

DOOR LOCK FUNCTION

DLK-219

< SYSTEM DESCRIPTION >

[WITHOUT INTELLIGENT KEY SYSTEM]

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REMOTE KEYLESS ENTRY : Component Parts Location

INFOID:0000000007355563

REMOTE KEYLESS ENTRY : Component Description

INFOID:0000000007355564

1. IPDM E/R E122, E124

2. Horn relay H-1

(view with cover removed)

3. Horn E3 (behind front combination 

lamp LH)

4. Back door cinching latch unit (door ajar 

switch) D502

5. Front door switch LH B8

RH B108

6. Rear door switch LH B18

RH B116

7. Remote keyless entry receiver M120

(view with instrument panel RH re-
moved)

8. BCM M18, M19, M20

(view with instrument panel LH removed)

9. Key switch M27

ALKIA1172ZZ

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 switch

Transmits door open/close condition to BCM.

Remote keyless entry receiver

Receives lock/unlock signal from the keyfob, and then transmits to BCM.

August 2012

2012 Pathfinder

2012 Pathfinder

DLK-220

< SYSTEM DESCRIPTION >

[WITHOUT INTELLIGENT KEY SYSTEM]

HOMELINK UNIVERSAL TRANSCEIVER

HOMELINK UNIVERSAL TRANSCEIVER

Component Description

INFOID:0000000007355565

Item

Function

Reference page

Homelink universal transceiver

A maximum of 3 radio signals can be stored and transmitted to operate 
the garage door, etc.

Refer to Owner's 

Manual

August 2012

2012 Pathfinder

2012 Pathfinder

DIAGNOSIS SYSTEM (BCM)

DLK-221

< SYSTEM DESCRIPTION >

[WITHOUT INTELLIGENT KEY SYSTEM]

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DIAGNOSIS SYSTEM (BCM)

COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)

INFOID:0000000007818266

APPLICATION ITEM

CONSULT performs the following functions via CAN communication with BCM.

SYSTEM APPLICATION

BCM can perform the following functions.

Direct Diagnostic Mode

Description

Ecu Identification

The BCM part number is displayed.

Self Diagnostic Result

The BCM self diagnostic results are displayed.

Data Monitor

The BCM input/output data is displayed in real time.

Active Test

The BCM activates outputs to test components.

Work support

The settings for BCM functions can be changed.

Configuration

• The vehicle specification can be read and saved.
• The vehicle specification can be written when replacing BCM.

CAN Diag Support Mntr

The result of transmit/receive diagnosis of CAN communication is displayed.

System

Sub System

Direct Diagnostic Mode

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Door lock

DOOR LOCK

×

×

×

Rear window defogger

REAR DEFOGGER

×

×

Warning chime

BUZZER

×

×

Interior room lamp timer

INT LAMP

×

×

×

Remote keyless entry system

MULTI REMOTE ENT

×

×

×

Exterior lamp

HEAD LAMP

×

×

×

Wiper and washer

WIPER

×

×

×

Turn signal and hazard warning lamps FLASHER

×

×

Air conditioner

AIR CONDITIONER

×

Intelligent Key system

INTELLIGENT KEY

×

Combination switch

COMB SW

×

BCM

BCM

×

×

×

×

×

Immobilizer

IMMU

×

×

×

Interior room lamp battery saver

BATTERY SAVER

×

×

×

Back door open

TRUNK

×

×

Vehicle security system

THEFT ALM

×

×

×

RAP system

RETAINED PWR

×

×

×

Signal buffer system

SIGNAL BUFFER

×

×

TPMS

AIR PRESSURE MONITOR

×

×

×

×

Panic alarm system

PANIC ALARM

×

August 2012

2012 Pathfinder

2012 Pathfinder

DLK-222

< SYSTEM DESCRIPTION >

[WITHOUT INTELLIGENT KEY SYSTEM]

DIAGNOSIS SYSTEM (BCM)

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

INFOID:0000000007818267

DATA MONITOR

* : with Intelligent Key
** : without Intelligent Key

ACTIVE TEST

WORK SUPPORT

* : Initial setting

Monitor Item [Unit]

Description

IGN ON SW [On/Off]

Indicates condition of ignition switch ON position.

KEY ON SW [On/Off]

Indicates condition of key switch.

CDL LOCK SW [On/Off]

Indicates condition of lock signal from door lock and unlock switch.

CDL UNLOCK SW [On/Off]

Indicates condition of unlock signal from door lock and unlock switch.

DOOR SW-DR [On/Off]

Indicates condition of front door switch LH.

DOOR SW-AS [On/Off]

Indicates condition of front door switch RH.

DOOR SW-RR [On/Off]

Indicates condition of rear door switch RH.

DOOR SW-RL [On/Off]

Indicates condition of rear door switch LH.

BACK DOOR SW [On/Off]

Indicates condition of back door switch.

KEY CYL LK-SW [On/Off]

Indicates condition of lock signal from door key cylinder switch.

KEY CYL UN-SW [On/Off]

Indicates condition of unlock signal from door key cylinder switch.

I-KEY LOCK* [On/Off]

Indicates condition of lock signal from Intelligent Key.

I-KEY UNLOCK* [On/Off]

Indicates condition of unlock signal from Intelligent Key.

KEYLESS LOCK** [On/Off]

Indicates condition of lock signal from keyfob.

KEYLESS UNLOCK** [On/Off]

Indicates condition of unlock signal from keyfob.

Test Item

Description

DOOR LOCK

This test is able to check door lock operation [OTR ULK/DR UNLK/ALL ULK/ALL LCK].

Support Item

Setting

Description

DOOR LOCK-UNLOCK SET

On*

Automatic door locks function ON.

Off

Automatic door locks function OFF.

ANTI-LOCK OUT SET

Off

Anti lock out function OFF.

On*

Anti lock out function ON.

AUTOMATIC DOOR LOCK SELECT

SHIFT OUT 
OF P

Doors lock automatically when shifted out of park (P).

VH SPD*

Doors lock automatically when vehicle speed reaches 24 km/h (15 mph).

AUTOMATIC DOOR UNLOCK
SELECT

MODE6

Drivers door unlocks automatically when key is removed.

MODE5

Drivers door unlocks automatically when shifted into park (P).

MODE4

Drivers door unlocks automatically when ignition is switched from ON to OFF.

MODE3

Doors unlock automatically when key is removed.

MODE2

Doors unlock automatically when shifted into park (P).

MODE1*

Doors unlock automatically when ignition is switched from ON to OFF.

AUTOMATIC LOCK/UNLOCK
SELECT

On*

Automatic lock/unlock function ON.

Off

Automatic lock/unlock function OFF.

August 2012

2012 Pathfinder

2012 Pathfinder