Nissan Pathfinder. Manual — part 928
PWC-8
< SYSTEM DESCRIPTION >
[LH FRONT ONLY AUTO DOWN]
COMPONENT PARTS
SYSTEM DESCRIPTION
COMPONENT PARTS
Component Parts Location
INFOID:0000000009176103
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
PWC-9
< SYSTEM DESCRIPTION >
[LH FRONT ONLY AUTO DOWN]
C
D
E
F
G
H
I
J
L
M
A
B
PWC
N
O
P
Component Description
INFOID:0000000009176104
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
INFOID:0000000009176105
System Description
INFOID:0000000009176106
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
PWC-11
< SYSTEM DESCRIPTION >
[LH FRONT ONLY AUTO DOWN]
C
D
E
F
G
H
I
J
L
M
A
B
PWC
N
O
P
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
INFOID:0000000009176107
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).
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