Nissan Pathfinder (2008 year). Manual — part 519
POWER WINDOW SYSTEM
PWC-5
< FUNCTION DIAGNOSIS >
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FUNCTION DIAGNOSIS
POWER WINDOW SYSTEM
System Diagram
INFOID:0000000001702335
FRONT WINDOW ANTI-PINCH SYSTEM
System Description
INFOID:0000000001702336
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
PWC-6
< FUNCTION DIAGNOSIS >
POWER WINDOW SYSTEM
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 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
POWER WINDOW SYSTEM
PWC-7
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• Hold door key cylinder to LOCK position for more than 1 second to perform CLOSE operation of the door
glass.
• Hold 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 activate, keyless power window down function cannot be operated.
NOTE:
Keyless power window down operation mode can be changed by “PW DOWN SET” mode in “WORK SUP-
PORT”. Refer to
DLK-36, "CONSULT-III Function (INTELLIGENT KEY)"
with Intelligent Key or
"REMOTE KEYLESS ENTRY : CONSULT-III Function (BCM - RKE)"
with remote keyless entry system.
NOTE:
Use CONSULT-III to change settings.
MODE1 (3sec)/MODE2 (OFF)/MODE3 (5sec)
Component Parts Location
INFOID:0000000001702337
Component Description
INFOID:0000000001702338
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
PWC-8
< FUNCTION DIAGNOSIS >
POWER WINDOW SYSTEM
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
Starts operating with signals from main power window and door lock/unlock switch &
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.
DIAGNOSIS SYSTEM (BCM)
PWC-9
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DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)
INFOID:0000000001702339
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.
RETAINED PWR
RETAINED PWR : CONSULT-III Function (BCM - RETAINED PWR)
INFOID:0000000001702340
Data monitor
Diagnosis mode
Function Description
WORK SUPPORT
Changes the setting for each system function.
SELF-DIAG RESULTS
Displays the diagnosis results judged by BCM. Refer to
CAN DIAG SUPPORT MNTR
Monitors the reception status of CAN communication viewed from BCM.
DATA MONITOR
The BCM input/output signals are displayed.
ACTIVE TEST
The signals used to activate each device are forcibly supplied from BCM.
ECU IDENTIFICATION
The BCM part number is displayed.
CONFIGURATION
This function is not used even though it is displayed.
System
Sub system selection item
Diagnosis mode
WORK SUPPORT
DATA MONITOR
ACTIVE TEST
BCM
BCM
×
RAP system
RETAINED PWR
×
Monitor Item
Description
DOOR SW-DR
Indicates [ON/OFF] condition of front door switch LH.
DOOR SW-AS
Indicates [ON/OFF] condition of front door switch RH.
PWC-10
< COMPONENT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
COMPONENT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
POWER WINDOW MAIN SWITCH
POWER WINDOW MAIN SWITCH : Description
INFOID:0000000001702341
• 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:0000000001702342
Main Power Window And Door Lock/Unlock Switch
1.
CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH FUNCTION
Does power window motor operate with main power window and door lock/unlock switch operation?
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-10, "POWER WINDOW MAIN SWITCH : Diagnosis Procedure"
POWER WINDOW MAIN SWITCH : Diagnosis Procedure
INFOID:0000000001702343
Main Power Window And Door Lock/Unlock Switch Power Supply Circuit Check
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
1.
Turn ignition switch OFF.
2.
Disconnect BCM and main power window and door lock/unlock
switch.
3.
Check continuity between BCM connector (A) and main power
window and door lock/unlock switch connectors (B and C).
4.
Check continuity between BCM connector (A) and ground.
Terminal
Voltage (V)
(Approx.)
(+)
(–)
Main power window and
door lock/unlock switch
connector
Terminal
D7 (A)
10
Ground
Battery voltage
D8 (B)
19
ALKIA0273ZZ
BCM connector
Terminal
Main power window and
door lock/unlock switch
connector
Terminal
Continuity
M20 (A)
68
D7 (B)
10
Yes
69
D8 (C)
19
LIIA2215E
POWER SUPPLY AND GROUND CIRCUIT
PWC-11
< COMPONENT DIAGNOSIS >
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Is the inspection result normal?
YES
>> GO TO 4
NO
>> Repair or replace harness.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect main power window and door lock/unlock switch.
3.
Check continuity between main power window and door lock/
unlock switch connector and ground.
Is the inspection result normal?
YES
>> Replace main power window and door lock/unlock
switch. Refer to
PWC-70, "Removal and Installation"
NO
>> Repair or replace harness.
4.
CHECK BCM OUTPUT SIGNAL
1.
Connect BCM.
2.
Turn ignition switch ON.
3.
Check voltage between BCM connector and ground.
Is the measurement value within the specification?
YES
>> Check main power window and door lock/unlock switch output signal (rear power window switch
LH) GO TO 5
YES
>> Check main power window and door lock/unlock switch output signal (rear power window switch
RH) GO TO 6
NO
>> Replace BCM. Refer to
BCS-54, "Removal and Installation"
5.
CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH OUTPUT SIGNAL (REAR POW-
ER WINDOW SWITCH LH)
1.
Turn ignition switch ON.
2.
Check voltage between main power window and door lock/
unlock switch connector and ground.
BCM connector
Terminal
Ground
Continuity
M20 (A)
68
No
69
Main power window and door lock/
unlock switch connector
Terminal
Ground
Continuity
D8
17
Yes
ALKIA0275ZZ
Terminals
Voltage (V)
(Approx.)
(+)
(–)
BCM connector
Terminal
M20
68
Ground
Battery voltage
69
LIIA0917E
ALKIA0276ZZ
PWC-12
< COMPONENT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
Is the measurement value within the specification?
YES
>> GO TO 7
NO
>> Replace main power window and door lock/unlock switch. Refer to
.
6.
CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH OUTPUT SIGNAL (REAR POW-
ER WINDOW SWITCH RH)
1.
Turn ignition switch ON.
2.
Check voltage between main power window and door lock/
unlock switch connector and ground.
Is the measurement value within the specification?
YES
>> GO TO 8
NO
>> Replace main power window and door lock/unlock switch. Refer to
.
7.
CHECK HARNESS CONTINUITY (REAR POWER WINDOW SWITCH LH)
1.
Turn ignition switch OFF.
2.
Disconnect rear power window switch LH.
3.
Check continuity between main power window and door lock/
unlock switch connector and rear power window switch LH con-
nector.
4.
Check continuity between main power window and door lock/unlock switch connector and ground.
Terminal
Window
condition
Voltage (V)
(Approx.)
(+)
(–)
Main power window
and door lock/unlock
switch connector
Terminal
D7
1
Ground
UP
Battery voltage
DOWN
0
3
UP
0
DOWN
Battery voltage
Terminal
Window
condition
Voltage (V)
(Approx.)
(+)
(–)
Main power win-
dow and door
lock/unlock
switch connector
Terminal
D7
7
Ground
UP
Battery voltage
DOWN
0
5
UP
0
DOWN
Battery voltage
ALKIA0277ZZ
Main power window
and door lock/unlock
switch connector
Terminal
Rear power window
switch LH connector
Terminal
Continuity
D7
1
D203
4
Yes
3
5
LIIA2230E
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