Nissan Pathfinder. Manual - part 928

PWC-8

< SYSTEM DESCRIPTION >

[LH FRONT ONLY AUTO DOWN]

COMPONENT PARTS

SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

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1.

BCM (view with the combination 
meter removed)

2.

Front power window motor LH (RH 
similar) (view with front door finisher 
removed)

3.

Rear power window motor LH (RH 
similar) (view with rear door finisher 
removed) 

AWKIA2058ZZ

COMPONENT PARTS

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< SYSTEM DESCRIPTION >

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Component Description

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4.

Main power window and door lock/
unlock switch 

5.

Power window and door lock/unlock 
switch RH 

6.

Rear power window switch LH (RH 
similar) 

7.

Front door lock assembly LH (key 
cylinder switch) 

8.

Front door switch LH (RH similar) 

Component

Function

BCM

• Supplies power to the window switches.
• Controls retained power.

Main power window and door lock/un-
lock switch

Directly controls all power window motors.

Power window and door lock/unlock 
switch RH

Controls power window motor of passenger door.

Rear power window switch 

Controls right and left power window motors for the rear doors.

Power window motor

• Integrates the ENCODER and WINDOW MOTOR.
• Starts operating with signals from each power window switch.
• Transmits power window motor rotation as a pulse signal to power window switch.

Front door lock assembly (door key cyl-
inder switch)

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

Front door switch LH/RH

Detects door open/close condition and transmits it to the BCM.

PWC-10

< SYSTEM DESCRIPTION >

[LH FRONT ONLY AUTO DOWN]

SYSTEM

SYSTEM

System Diagram

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System Description

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POWER WINDOW OPERATION

• Power window system is activated by the power window switch when the ignition switch is in the ON position

or during the retained power operation after ignition switch turns OFF.

• Power window main switch can open/close door glass.

• Front and rear power window switch can open/close the corresponding door glass.

• Power window lock switch can lock all power windows other than driver seat.

• All power windows open when pressing Intelligent Key unlock button for 3 seconds.

• Power window serial link transmits the signals from power window main switch to each power window

switch.

POWER WINDOW AUTO-OPERATION

• AUTO-DOWN operation can be performed when the front power window motor LH turns to AUTO.

• Encoder continues detecting the movement of power window motor and output the encoder pulse signal to

power window switch   while power window motor is operating.

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

• AUTO-DOWN function does not operate if 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 again.

• When timer time passes. (45 seconds)

ABKIA3026GB

SYSTEM

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POWER WINDOW LOCK FUNCTION

Ground circuit inside power window main switch shuts off when power window lock switch is ON. This inhibits

power window switch operation except with the power window main switch.

DOOR KEY CYLINDER SWITCH OPERATION

Hold the door key cylinder to the LOCK or UNLOCK direction for 1 second or more to OPEN or CLOSE all

power windows when ignition switch is OFF. In addition, it stops when key position is moved to N (NEUTRAL)

when operating.

Operation Condition

• Ignition switch OFF.

• Hold door key cylinder to LOCK position for 1 second or more to perform CLOSE operation of the door

glass.

• Hold door key cylinder to UNLOCK position for 1 second or more to perform OPEN operation of the door

glass.

KEYLESS POWER WINDOW DOWN FUNCTION

All power windows open when the unlock button on Intelligent Key is activated and pressed for more than 3

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 pressed for 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 activate, keyless power window down function cannot be operated.

Fail-safe

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FAIL-SAFE CONTROL

Switches to fail-safe control when malfunction is detected in encoder signal that detects up/down speed and

direction of door glass. Switches to fail-safe control when an error beyond the regulation value is detected

between the fully closed position and the actual position of the glass.

It changes to condition before initialization and the following functions do not operate when switched to fail-

safe control: 

• Auto-up operation

• Retained power function

Perform initial operation to recover when switched to fail-safe mode. However, it switches back to fail-safe

control when malfunction is found in power window switch or in motor.

Malfunction

Malfunction condition

Pulse sensor malfunction

When only one side of pulse signal is being detected for more than the specified value.

Both pulse sensors mal-
function

When both pulse signals have not been detected for more than the specified value during glass 
open/close operation.

Pulse direction malfunc-
tion

When the pulse signal that is detected during glass open/close operation detects the opposite con-
dition of power window motor operating direction. 

Glass recognition position 
malfunction 1

When it detects the error between glass fully closed position in power window switch memory and 
actual fully closed position during glass open/close operation is more than the specified value.

Glass recognition position 
malfunction 2

When it detects pulse count more that the value of glass full stroke during glass open/close opera-
tion.

Malfunction of not yet up-
dated closed position of 
glass

When glass open/close operation is continuously performed without fully closing more that the spec-
ified value (approximately 10 strokes).