Nissan Pathfinder (2012 year). Manual - part 497

PWC-6

< SYSTEM DESCRIPTION >

POWER WINDOW SYSTEM

SYSTEM DESCRIPTION

POWER WINDOW SYSTEM

System Diagram

INFOID:0000000007355848

FRONT WINDOW ANTI-PINCH SYSTEM

System Description

INFOID:0000000007355849

POWER WINDOW MAIN SWITCH

INPUT/OUTPUT SIGNAL CHART

POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH 

INPUT/OUTPUT SIGNAL CHART

ALCIA0038GB

Item

Input signal to main power window and 

door lock/unlock switch

Main power window and door 

lock/unlock switch function

Actuator

Key cylinder switch

LOCK/UNLOCK signal (more than 1.5 
seconds over)

Power window control

Front power window motor

Encoder

Encoder pulse signal

Main power window 
and door lock/unlock 
switch

Front power window motor LH UP/
DOWN signal

Power window and 
door lock/unlock 
switch RH 

Front power window motor RH UP/
DOWN signal

BCM

RAP signal

Rear power window 
switch

Rear power window motor UP/DOWN 
signal

Rear power window motor

August 2012

2012 Pathfinder

POWER WINDOW SYSTEM

PWC-7

< SYSTEM DESCRIPTION >

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POWER WINDOW OPERATION

• Power window system is operable during the retained power operation timer after turning ignition switch ON

and OFF.

• Main power window and door lock/unlock switch can open/close all windows.

• Power window and door lock unlock switch RH & rear power window switches LH and RH can open/close

the corresponding windows.

POWER WINDOW AUTO-OPERATION (FRONT LH & RH)

• AUTO UP/DOWN operation can be performed when main power window and door lock/unlock switch &

power window and door lock/unlock switch RH turns to AUTO.

• Encoder continues detecting the movement of power window motor and transmits to power window switch

as the encoder pulse signal while power window motor is operating.

• Power window switch reads the changes of encoder signal and stops AUTO operation when door glass is at

fully opened/closed position.

• Power window motor is operable in case encoder is malfunctioning.

RETAINED POWER OPERATION 

• Retained power operation is an additional power supply function that enables power window system to oper-

ate during the 45 seconds even when ignition switch is turned OFF

Retained power function cancel conditions 

• Front door CLOSE (door switch OFF)

→

OPEN (door switch ON).

• When ignition switch is ON.

• When timer time passes. (45 seconds)

POWER WINDOW LOCK

Ground circuit inside main power window and door lock/unlock switch shuts off when power window lock

switch is ON. This inhibits power window switch operation except with the main power window and door lock/

unlock switch.

ANTI-PINCH OPERATION (FRONT LH & RH)

• Pinch foreign material in the door glass during AUTO-UP operation, and it is the anti-pinch function that low-

ers the door glass 150 mm (5.91 in) or 2 seconds when detected.

• Encoder continues detecting the movement of power window motor and transmits to power window switch

as the encoder pulse signal while power window motor is operating.

• Resistance is applied to the power window motor rotation that changes the frequency of encoder pulse sig-

nal if foreign material is trapped in the door glass.

• Power window switch controls to lower the window glass for 150 mm (5.91 in) or 2 seconds after it detects

encoder pulse signal frequency change.

OPERATION CONDITION

• When all door glass AUTO-UP operation is performed (anti-pinch function does not operate just before the

door glass closes and is fully closed)

NOTE:

Depending on environment and driving conditions, if a similar impact or load is applied to the door glass, it

may lower.

KEY CYLINDER SWITCH OPERATION

Hold the driver’s door key cylinder to the LOCK or UNLOCK direction for more than 1 second to OPEN or

CLOSE front power windows when ignition switch is OFF. In addition, it stops when key position is moved to

NEUTRAL when operating.

OPERATION CONDITION 

• Ignition switch OFF

Item 

Input signal to front power window 

switch

Front power window switch 

function

Actuator

Power window and 
door lock/unlock 
switch RH

Front power window motor RH UP/
DOWN signal

Power window control

Front power window motor RH

Encoder

Encoder pulse signal

BCM

RAP signal

August 2012

2012 Pathfinder

PWC-8

< SYSTEM DESCRIPTION >

POWER WINDOW SYSTEM

• Hold driver’s door key cylinder to LOCK position for more than 1 second to perform CLOSE operation of the

door glass.

• Hold driver’s door key cylinder to UNLOCK position for more than 1 second to perform OPEN operation of

the door glass.

KEYLESS POWER WINDOW DOWN OPERATION (FRONT LH & RH)

Front power windows open when the unlock button on Intelligent Key or keyfob is activated and kept pressed
for more than 3

(NOTE)

 seconds with the ignition switch OFF. The windows keep opening if the unlock button is

continuously pressed.

The power window opening stops when the following operations are performed:

• When the unlock button is kept pressed more than 15 seconds.

• When the ignition switch is turned ON while the power window opening is operated.

• When the unlock button is released.

While retained power operation is activated, keyless power window down function cannot be operated.

NOTE:

Keyless power window down operation mode can be changed by “P/W DOWN DELAY” mode in “WORK SUP-

PORT”. Refer to 

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

 with Intelli-

gent Key or 

BCS-19, "MULTI REMOTE ENT : CONSULT Function (BCM - MULTI REMOTE ENT)"

 with

remote keyless entry system.

Component Parts Location

INFOID:0000000007355850

Component Description

INFOID:0000000007355851

FRONT WINDOW ANTI-PINCH SYSTEM

LIIA2390E

1.

Main power window and door lock/
unlock switch D7, D8

2.

BCM M18, M19, M20 (view with in-
strument lower panel LH removed)

3.

Power window and door lock/unlock 
switch RH D105

4.

Front power window motor LH D9, 
RH D104

5.

Front door switch LH B8, RH B108

6.

A. Rear power window switch LH 
D203, RH D303
B. Rear power window motor LH 
D204, RH D304

August 2012

2012 Pathfinder

POWER WINDOW SYSTEM

PWC-9

< SYSTEM DESCRIPTION >

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Component

Function

BCM

• Supplies power supply to power window switch.
• Controls retained power.

Main power window and door lock/un-
lock switch

• Directly controls all power window motor of all doors.
• Controls anti-pinch operation of front power window LH.

Power window and door lock/unlock 
switch RH

• Controls front power window motor RH.
• Controls anti-pinch operation of front power window RH.

Rear power window switch 

• Controls rear power window motors LH and RH.

Front power window motor LH

• Integrates the ENCODER POWER and WINDOW MOTOR.
• Starts operating with signals from main power window and door lock/unlock switch.
• Transmits power window motor rotation as a pulse signal to main power window and 

door lock/unlock switch.

Front power window motor RH

• Integrates the ENCODER POWER and WINDOW MOTOR.
• Starts operating with signals from main power window and door lock/unlock switch & 

power window and door lock/unlock switch RH.

• Transmits power window motor rotation as a pulse signal to power window and door 

lock/unlock switch RH.

Rear power window motor

Starts operating with signals from main power window and door lock/unlock switch & 
rear power window switch.

Front door lock assembly LH (key cylin-
der switch)

Transmits operation condition of key cylinder switch to power window main switch.

Front door switch LH or RH

Detects door open/close condition and transmits to BCM.

August 2012

2012 Pathfinder

PWC-10

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (BCM)

DIAGNOSIS SYSTEM (BCM)

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

INFOID:0000000007808159

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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 Su

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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

DIAGNOSIS SYSTEM (BCM)

PWC-11

< SYSTEM DESCRIPTION >

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RETAINED PWR
RETAINED PWR : CONSULT Function (BCM - RETAINED PWR)

INFOID:0000000007808160

DATA MONITOR

ACTIVE TEST

WORK SUPPORT

*: Initial setting

Monitor Item [Unit]

Description

IGN ON SW [On/Off]

Indicates condition of ignition switch ON position.

DOOR SW-DR [On/Off]

Indicates condition of front door switch LH.

DOOR SW-AS [On/Off]

Indicates condition of front door switch RH.

Test Item

Description

RETAINED PWR

This test is able to check retained power operation [Off/On].

Support Item

Setting

Description

RETAINED PWR SET

MODE3

2 min

Sets the retained accessory power operating time. 

MODE2

OFF

MODE1*

45 sec

August 2012

2012 Pathfinder

PWC-12

< DTC/CIRCUIT DIAGNOSIS >

POWER SUPPLY AND GROUND CIRCUIT

DTC/CIRCUIT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

BCM
BCM : Diagnosis Procedure

INFOID:0000000007808161

Regarding Wiring Diagram information, refer to 

BCS-46, "Wiring Diagram"

.

1.

 CHECK FUSES AND FUSIBLE LINK

Check that the following fuses and fusible link are not blown.

Is the fuse blown?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit.

NO

>> GO TO 2

2.

 CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BCM.

3. Check voltage between BCM harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 3

NO

>> Repair or replace harness.

3.

 CHECK GROUND CIRCUIT

Terminal No.

Signal name

Fuses and fusible link No.

57

Battery power supply

21 (10A)

70

G (50A)

11

Ignition ACC or ON

4 (10A)

38

Ignition ON or START

1 (10A)

Connector

Terminals 

Power

source

Condition

Voltage (V) (Ap-

prox.)

(+)

(-)

M18

11

Ground

ACC 

power 

supply

Ignition 

switch 

ACC or 

ON

Battery voltage

38

Ground

Ignition 

power 

supply

Ignition 

switch ON 

or START

Battery voltage

M20

57

Ground

Battery 

power 

supply

Ignition 

switch 

OFF

Battery voltage

70

Ground

Battery 

power 

supply

Ignition 

switch 

OFF

Battery voltage

LIIA2415E

August 2012

2012 Pathfinder

POWER SUPPLY AND GROUND CIRCUIT

PWC-13

< DTC/CIRCUIT DIAGNOSIS >

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Check continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> Inspection End.

NO

>> Repair or replace harness.

POWER WINDOW MAIN SWITCH
POWER WINDOW MAIN SWITCH : Description

INFOID:0000000007355855

• BCM supplies power.

• It operates each power window motor via corresponding power window switch and makes window move up/

down when main power window and door lock/unlock switch is operated.

POWER WINDOW MAIN SWITCH : Component Function Check

INFOID:0000000007355856

Main Power Window And Door Lock/Unlock Switch 

1.

 CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH FUNCTION

Check power window motor operation with main power window and door lock/unlock switch.
Is the inspection result normal?

YES

>> Main power window and door lock/unlock switch power supply and ground circuit are OK.

NO

>> Refer to 

PWC-13, "POWER WINDOW MAIN SWITCH : Diagnosis Procedure"

.

POWER WINDOW MAIN SWITCH : Diagnosis Procedure

INFOID:0000000007355857

Regarding Wiring Diagram information, refer to 

PWC-61, "Wiring Diagram"

.

1.

 CHECK POWER SUPPLY CIRCUIT 

1. Turn ignition switch ON.

2. Check voltage between main power window and door lock/

unlock switch connectors (A and B) and ground.

Is the measurement value within the specification?

YES

>> GO TO 3

NO

>> GO TO 2

2.

 CHECK HARNESS CONTINUITY 

BCM

Ground

Continuity

Connector

Terminal

M20

67

Yes

LIIA0915E

Terminal

Voltage (V)

(Approx.)

(+)

(–)

Main power window and 

door lock/unlock switch

connector

Terminal 

D7 (A)

10

Ground

Battery voltage

D8 (B)

19

ALKIA0273ZZ

August 2012

2012 Pathfinder