2010 INFINITI QX56 door lock

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INFINITI QX56 2010 Factory Service Manual PG-60
< COMPONENT DIAGNOSIS >
HARNESS
F2 D406 B/1 : Rear window defoggerD2 D705 GR/2 : Back-up lamp LH
Back door LH harness C4 D706 W/4 : Back door and glass hatch switch assembly
G3 D501 W/18 : To D4

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INFINITI QX56 2010 Factory Service Manual PWC-2
PASSENGER SIDE : Description ...........................25
PASSENGER SIDE : Compo nent Function Check
...
25
PASSENGER SIDE : Diagnosis Procedure ........ ...25
REAR LH ......................

PWC-2
PASSENGER SIDE : Description ...........................25
PASSENGER SIDE : Compo nent Function Check
...
25
PASSENGER SIDE : Diagnosis Procedure ........ ...25
REAR LH ................................................................ ...28
REAR LH : Description ...........................................28
REAR LH : Component Function Check ................28
REAR LH : Diagnosis Procedure ............................28
REAR RH ............................................................... ...30
REAR RH : Description ..........................................31
REAR RH : Component Function Check ................31
REAR RH : Diagnosis Procedure ...........................31
DOOR SWITCH .................................................34
Description ..............................................................34
Component Function Check ...................................34
Diagnosis Procedure ..............................................34
Component Inspection ............................................35
DOOR KEY CYLINDER SWITCH ......................36
Description ........................................................... ...36
Component Function Check ...................................36
Diagnosis Procedure ..............................................36
Component Inspection ............................................37
POWER WINDOW SERIAL LINK .....................39
POWER WINDOW MAIN SWITCH ........................ ...39
POWER WINDOW MAIN SWITCH : Description ...39
POWER WINDOW MAIN SWITCH : Component
Function Check .......................................................
39
POWER WINDOW MAIN SWITCH : Diagnosis
Procedure ...............................................................
39
FRONT POWER WINDOW SWITCH ..................... ...40
FRONT POWER WINDOW SWITCH : Descrip-
tion ..........................................................................
40
FRONT POWER WINDOW SWITCH : Compo-
nent Function Check ...............................................
40
FRONT POWER WINDOW SWITCH : Diagnosis
Procedure ...............................................................
41
REAR POWER WINDOW SWITCH ....................... ...42
REAR POWER WINDOW SWITCH : Power Win-
dow Serial Link Check Rear LH or RH ...................
42
POWER WINDOW LOCK SWITCH ...................43
Description ........................................................... ...43
Component Function Check ...................................43
REAR POWER VENT WINDOW SWITCH
CIRCUIT CHECK ...............................................
44
Description ........................................................... ...44
Diagnosis Procedure ..............................................44
REAR POWER VENT WINDOW MOTOR LH
CIRCUIT CHECK ...............................................
45
Description ........................................................... ...45
Diagnosis Procedure ..............................................45
REAR POWER VENT WINDOW MOTOR RH
CIRCUIT CHECK ...............................................
46
Description ........................................................... ...46
Diagnosis Procedure ...............................................46
REAR POWER VENT WINDOW RELAY
(OPEN) CHECK .................................................
47
Description ........................................................... ...47
Diagnosis Procedure ...............................................47
REAR POWER VENT WINDOW RELAY
(CLOSE) CHECK ...............................................
49
Description ........................................................... ...49
Diagnosis Procedure ...............................................49
ECU DIAGNOSIS .......................................51
POWER WINDOW MAIN SWITCH ................ ...51
Reference Value .................................................. ...51
Wiring Diagram .......................................................53
Fail Safe .................................................................64
FRONT POWER WINDOW SWITCH ................66
Reference Value .................................................. ...66
Wiring Diagram .......................................................68
Fail Safe .................................................................79
BCM (BODY CONTROL MODULE) ..................81
Reference Value .................................................. ...81
Terminal Layout ......................................................84
Physical Values .......................................................84
Wiring Diagram .......................................................90
Fail Safe .................................................................94
DTC Inspection Priority Chart ...............................95
DTC Index ..............................................................95
SYMPTOM DIAGNOSIS ............................97
NONE OF THE POWER WINDOWS CAN BE
OPERATED USING ANY SWITCH ................ ...
97
Diagnosis Procedure ............................................ ...97
DRIVER SIDE POWER WINDOW ALONE
DOES NOT OPERATE ......................................
98
Diagnosis Procedure ............................................ ...98
FRONT PASSENGER SIDE POWER WIN-
DOW ALONE DOES NOT OPERATE ...............
99
Diagnosis Procedure ............................................ ...99
REAR LH SIDE POWER WINDOW ALONE
DOES NOT OPERATE .....................................
100
Diagnosis Procedure ............................................ .100
REAR RH SIDE POWER WINDOW ALONE
DOES NOT OPERATE .....................................
101
Diagnosis Procedure ............................................ .101
ANTI-PINCH SYSTEM DOES NOT OPERATE
NORMALLY (DRIVER SIDE) ...........................
102
Diagnosis Procedure ............................................ .102
Revision: April 20092010 QX56

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INFINITI QX56 2010 Factory Service Manual POWER WINDOW SYSTEMPWC-5
< FUNCTION DIAGNOSIS >
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FUNCTION DIAGNOSIS
POWER WINDOW SYSTEM
System DiagramINFOID:0000000005147165
POWER WINDOW ANTI-PINCH SYSTEM
System Desc

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INFINITI QX56 2010 Factory Service Manual PWC-6
< FUNCTION DIAGNOSIS >
POWER WINDOW SYSTEM
REAR POWER WINDOW CONTROL
INPUT/OUTPUT SIGNAL CHART
POWER WINDOW OPERATION
• Power window system is operable during the retained power operation tim

PWC-6
< FUNCTION DIAGNOSIS >
POWER WINDOW SYSTEM
REAR POWER WINDOW CONTROL
INPUT/OUTPUT SIGNAL CHART
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.
REAR POWER VENT WINDOW OPERATION
• Rear power vent window system is operable during the retained power operation timer after turning ignitionswitch ON and OFF.
• Rear power vent window switch can open/close the rear power vent window LH and RH.
POWER WINDOW AUTO-OPERATION
• AUTO UP/DOWN operation can be performed when main power window and door lock/unlock switch or
power window and door lock/unlock switch RH turns to AUTO.
• Main power window and door lock/unlock switch controls rear power window LH/RH auto-operation.
• Encoder continues detecting the movement of power window motor and transmits to front power window
switch LH/RH or rear power window control unit LH/RH as the encoder pulse signal while power window
motor is operating.
• Front power window switch LH/RH or rear power window control unit LH/RH 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
The power window lock is designed to lock operation of all windows except for front door window LH.
When in the lock position, the power window lock signal is transmitted to power window and door lock/unlock
switch RH and rear power window control unit LH/RH by power window serial link. This prevents the power
window motor from operating.
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
Item Input signal to front power window
switch Front power window switch
function Actuator
Main power window
and door lock/un-
lock switch Rear power window motor LH/RH UP/
DOWN signal
Power window control Rear power window motor LH/RH
Rear power window
switch LH/RH
Rear power window motor LH/RH UP/
DOWN signal
Rear power window
control unit LH/RH Rear power window
motor control LH
RH UP/DOWN signal
Encoder Encoder pulse signal
BCM Power window serial link signal
Revision: April 20092010 QX56

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INFINITI QX56 2010 Factory Service Manual POWER WINDOW SYSTEMPWC-7
< FUNCTION DIAGNOSIS >
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ANTI-PINCH OPERATION
• Pinch foreign material in the door glass during AUTO-U P operation, and it is the anti-pinch

POWER WINDOW SYSTEMPWC-7
< FUNCTION DIAGNOSIS >
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ANTI-PINCH OPERATION
• Pinch foreign material in the door glass during AUTO-U P 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.
• Front power window switch LH/RH and rear power window control unit LH/RH 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 dire ction 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
• 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 power windows open when the unlock button on Intelligent Key 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 continu-
ously 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, ke yless 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-56, "
CONSULT-III Function (INTELLIGENT KEY)".
NOTE:
Use CONSULT-III to change settings.
MODE1 (3sec)/MODE2 (OFF)/MODE3 (5sec)
Revision: April 20092010 QX56

Page 2993 of 4210

INFINITI QX56 2010 Factory Service Manual PWC-8
< FUNCTION DIAGNOSIS >
POWER WINDOW SYSTEM
Component Parts Location
INFOID:0000000005147167
Component DescriptionINFOID:0000000005147168
POWER WINDOW ANTI-PINCH SYSTEM
LIIA2715E
1. A. Steering c

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INFINITI QX56 2010 Factory Service Manual POWER WINDOW SYSTEMPWC-9
< FUNCTION DIAGNOSIS >
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Front power window motor LH • Integrates the ENCODER POWER and WINDOW MOTOR.
• Starts operating with signals from m

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INFINITI QX56 2010 Factory Service Manual PWC-10
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)INFOID:0000000005369205
APPLICATION ITEM
CONSULT-III perfo

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