key INFINITI QX56 2011 Factory Service Manual

PCS
DIAGNOSIS SYSTEM (BCM)PCS-41
< SYSTEM DESCRIPTION > [POWER DISTRIBUTION SYSTEM]
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ENGINE START BY I-KEY
Engine start function mode can be changed to operation with this mode
 On: Operate
 Off: Non-operation
TRUNK/GLASS HATCH OPEN Buzzer reminder function mode by back door opener switch can be changed to operation with
this mode
 On: Operate
 Off: Non-operation
PANIC ALARM SET Panic alarm button pressing time on Intelligent Key button can be selected from the following
with this mode
 MODE 1: 0.5 sec
 MODE 2: Non-operation
 MODE 3: 1.5 sec
TRUNK OPEN DELAY Back door open button pressing to Intelligent Key button can be selected as per the following
in this mode
 MODE 1: Press and hold
 MODE 2: Press twice
 MODE 3: Press and hold, or press twice
LO- BATT OF KEY FOB WARN Intelligent Key low battery warning mode can be changed to operation with this mode
 On: Operate
 Off: Non-operation
ANTI KEY LOCK IN FUNCTI Key reminder function mode can be changed to operation with this mode
 On: Operate
 Off: Non-operation
HAZARD ANSWER BACK Hazard reminder function mode by door request switch and Intelligent Key button can be se-
lected from the following with this mode
 Lock Only: Door lock operation only
 Unlock Only: Door unlock operation only
 Lock/Unlock: Lock and unlock operation
 Off: Non-operation
ANS BACK I-KEY LOCK Buzzer reminder function (lock operation) mode by door request switch can be selected from
the following with this mode
 Horn Chirp: Sound horn
 Buzzer: Sound Intelligent Key warning buzzer
 Off: Non-operation
ANS BACK I-KEY UNLOCK Buzzer reminder function (unlock operation) mode by door request switch can be changed to
operation with this mode
 On: Operate
 Off: Non-operation
SHORT CRANKING OUTPUT Starter motor can operate during the times below
 70 msec
100 msec
200 msec
CONFIRM KEY FOB ID It can be checked wh ether Intelligent Key ID code is registered or not in this mode
AUTO LOCK SET Auto door lock operation time can be changed in this mode
 MODE 1: OFF
 MODE 2: 30 sec
 MODE 3: 1 minute
 MODE 4: 2 minutes
 MODE 5: 3 minutes
 MODE 6: 4 minutes
 MODE 7: 5 minutes
HORN WITH KEYLESS LOCK Horn reminder function mode by Intelligent Key button can be selected from the following with
this mode
 On: Operate
 Off: Non-operation
Monitor item Description
Revision: 2010 May2011 QX56

PCS-42
< SYSTEM DESCRIPTION >[POWER DISTRIBUTION SYSTEM]
DIAGNOSIS SYSTEM (BCM)
SELF-DIAG RESULT
Refer to
BCS-57, "DTCIndex".
DATA MONITOR
PW DOWN SET Unlock button pressing time on Intelligent Key button can be selected from the following with
this mode
 MODE 1: 3 sec
 MODE 2: Non-operation
 MODE 3: 5 sec
WELCOME LIGHT SELECT Welcome light function mode can be selected from the following with this mode
 Puddle/Outside Handle
 Room lamp
 Head & Tail Lamps (this item is displayed, but cannot be used)
 Heart Beat
WELCOME LIGHT OP SET Welcome light function mode can be changed to operation with this mode
 On: Operate
 Off: Non-operation
Monitor item Description
Monitor Item Condition
REQ SW -DR Indicates [On/Off] condition of door request switch (driver side)
REQ SW -AS Indicates [On/Off] condition of door request switch (passenger side)
REQ SW -BD/TR Indicates [On/Off] condition of back door request switch
PUSH SW Indicates [On/Off] condition of push-button ignition switch
CLUTCH SW NOTE:
This item is displayed, but cannot be monitored
BRAKE SW 1 Indicates [On/Off]* condition of stop lamp switch power supply
BRAKE SW 2 Indicates [On/Off] condition of stop lamp switch
DETE/CANCL SW Indicates [On/Off] condition of P position
SFT PN/N SW Indicates [On/Off] condition of P or N position
S/L -LOCK Indicates [On/Off] condition of steering lock unit (LOCK)
S/L -UNLOCK Indicates [On/Off] condition of steering lock unit (UNLOCK)
S/L RELAY -F/B Indicates [On/Off] condition of steering lock relay
UNLK SEN -DR Indicates [On/Off] condition of driver door UNLOCK status
PUSH SW -IPDM Indicates [On/Off] condition of push-button ignition switch
IGN RLY1 -F/B Indicates [On/Off] condition of ignition relay 1
DETE SW -IPDM Indicates [On/Off] condition of P position
SFT PN -IPDM Indicates [On/Off] condition of P or N position
SFT P -MET Indicates [On/Off] condition of P position
SFT N -MET Indicates [On/Off] condition of N position
ENGINE STATE Indicates [Stop/Stall/Crank/Run] condition of engine states
S/L LOCK-IPDM Indicates [On/Off] condition of steering lock unit (LOCK)
S/L UNLK-IPDM Indicates [On/Off] condition of steering lock unit (UNLOCK)
S/L RELAY-REQ Indicates [On/Off] condition of steering lock relay
VEH SPEED 1 Display the vehicle speed signal received from combination meter by numerical value [Km/h]
VEH SPEED 2 Display the vehi cle speed signal received from ABS or VDC or TCM by numerical value [Km/h]
DOOR STAT-DR Indicates [LOCK/READY/UNLK] condition of unlock sensor
DOOR STAT-AS Indicates [LOCK/READY/UNLK] condition of passenger side door status
ID OK FLAG Indicates [Set/Reset] condition of key ID
PRMT ENG STRT Indicates [Set/Reset] condition of engine start possibility
Revision: 2010 May2011 QX56

PCS
DIAGNOSIS SYSTEM (BCM)PCS-43
< SYSTEM DESCRIPTION > [POWER DISTRIBUTION SYSTEM]
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*: OFF is displayed when brake pedal is depressed while brake switch power supply is OFF.
ACTIVE TEST
PRMT RKE STRT
NOTE:
This item is displayed, but cannot be monitored
TRNK/HAT MNTR NOTE:
This item is displayed, but cannot be monitored
RKE-LOCK Indicates [On/Off] condition of LOCK signal from Intelligent Key
RKE-UNLOCK Indicates [On/Off] condition of UNLOCK signal from Intelligent Key
RKE-TR/BD NOTE:
This item is displayed, but cannot be monitored
RKE-PANIC Indicates [On/Off] condition of PANIC button of Intelligent Key
RKE-MODE CHG Indicates [On/Off] condition of MODE CHANGE signal from Intelligent Key
RKE OPE COUN1 When remote keyless entry receiver receives the signal transmitted while operating on Intelli-
gent Key, the numerical value start changing
RKE OPE COUN2 NOTE:
This item is displayed, but cannot be monitored
Monitor Item Condition
Test item Description
BATTERY SAVER This test is able to check interior room lamp operation
 On: Operate
 Off: Non-operation
OUTSIDE BUZZER This test is able to check Intelligent Key warning buzzer operation
 On: Operate
 Off: Non-operation
INSIDE BUZZER This test is able to check warning chime in combination meter operation
 Take Out: Take away warning chime sounds when CONSULT-III screen is touched
 Key: Key warning chime sounds when CONSULT-III screen is touched
 Knob: OFF position warning chime sounds when CONSULT-III screen is touched
 Off: Non-operation
INDICATOR This test is able to check warning lamp operation
 KEY ON: “KEY” Warning lamp illuminates when CONSULT-III screen is touched
 KEY IND: “KEY” Warning lamp blinks when CONSULT-III screen is touched
 Off: Non-operation
INT LAMP This test is able to check interior room lamp operation
 On: Operate
 Off: Non-operation
LCD This test is able to check meter display information
 Engine start information displays when “BP N” on CONSULT-III screen is touched
 Engine start information displays when “BP I” on CONSULT-III screen is touched
 Key ID warning displays when “ID NG” on CONSULT-III screen is touched
 Steering lock information displays when “ROTAT” on CONSULT-III screen is touched
 P position warning displays when “SFT P” on CONSULT-III screen is touched
 INSRT: This item is displayed, but cannot be monitored
 BATT: This item is displayed, but cannot be monitored
 Take away through window warning displays when “NO KY” on CONSULT-III screen is
touched
 Take away warning displa y when “OUTKEY” on CONSUL T-III screen is touched
 OFF position warning display when “LK WN” on CONSULT-III screen is touched
FLASHER This test is able to check security hazard lamp operation
The hazard lamps are activated after “LH/RH/Off” on CONSULT-III screen is touched
P RANGE This test is able to check A/T shift selector power supply
 On: Operate
 Off: Non-operation
ENGINE SW ILLUMI This test is able to check push-button ignition switch illumination operation
Push-ignition switch illumination illuminates when “ON” on CONSULT-III screen is touched
Revision: 2010 May2011 QX56

PCS-76
< SYMPTOM DIAGNOSIS >[POWER DISTRIBUTION SYSTEM]
PUSH-BUTTON IGNITION SW
ITCH DOES NOT OPERATE
SYMPTOM DIAGNOSIS
PUSH-BUTTON IGNITION SWITCH DOES NOT OPERATE
DescriptionINFOID:0000000006220228
Check that vehicle is under the condition shown in “C onditions of vehicle” before starting diagnosis, and check
each symptom.
NOTE:
The engine start function, door lock function, power dist ribution system, and NATS-IVIS/NVIS in the Intelligent
Key system are closely related to each other regarding c ontrol. The vehicle security function can operate only
when the door lock and power distribution system are operating normally.
Conditions of Vehicle (Operating Conditions)
 “ENGINE START BY I-KEY” in “WORK SUPPOR T” is ON when setting on CONSULT-III.
 One or more of Intelligent Keys with registered Intelligent Key ID is in the vehicle.
Diagnosis ProcedureINFOID:0000000006220229
1.PERFORM WORK SUPPORT
Perform “INSIDE ANT DIAGNOSIS” on Wo rk Support of “INTELLIGENT KEY”.
Refer to DLK-41, "
INTELLIGENT KEY : CONSULT-III Function (BCM - INTELLIGENT KEY)".
>> GO TO 2.
2.PERFORM SELF-DIAGNOSIS RESULT
Perform Self-Diagnosis Result of “BCM”.
Is DTC detected?
YES >> Refer to BCS-57, "DTCIndex".
NO >> GO TO 3.
3.CHECK PUSH-BUTTON IGNITION SWITCH
Check push-button ignition switch.
Refer to PCS-71, "
ComponentFunctionCheck".
Is the operation normal?
YES >> GO TO 4.
NO >> Repair or replace malfunctioning parts.
4.CONFIRM THE OPERATION
Confirm the operation again.
Is the inspection normal?
YES >> Check intermittent incident. Refer to GI-40, "Intermittent Incident".
NO >> GO TO 1.
Revision: 2010 May2011 QX56

PCS
PUSH-BUTTON IGNITION SWITCH POSITION INDICATOR DOES NOT ILLUMI-
NATE
PCS-77
< SYMPTOM DIAGNOSIS > [POWER DISTRIBUTION SYSTEM]
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PUSH-BUTTON IGNITION SWITCH PO
SITION INDICATOR DOES NOT IL-
LUMINATE
DescriptionINFOID:0000000006220230
 Before performing the diagnosis in the follo wing table, check “Work Flow”. Refer to PCS-53, "Work Flow".
 Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and
check each symptom.
Conditions of Vehicle (Operating Conditions)
 “ENGINE START BY I-KEY” in “WORK SUPPORT” is ON when setting on CONSULT-III.
 One or more of Intelligent Keys with registered Intelligent Key ID is in the vehicle.
Diagnosis ProcedureINFOID:0000000006220231
1.CHECK PUSH-BUTTON IGNITION SWITCH INDICATOR
Check push-button ignition switch indicator.
Refer to PCS-74, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace the malfunctioning parts.
2.CONFIRM THE OPERATION
Confirm the operation again.
Is the result normal?
YES >> Check intermittent incident. Refer to GI-40, "Intermittent Incident".
NO >> GO TO 1.
Revision: 2010 May2011 QX56

PWC-2
FRONT POWER WINDOW SWITCH (PASSEN-
GER SIDE) ................................................................
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FRONT POWER WINDOW SWITCH (PASSEN-
GER SIDE) : Diagnosis Procedure .........................
36
REAR POWER WINDOW SWITCH ....................... ...37
REAR POWER WINDOW SWITCH : Diagnosis
Procedure ...............................................................
37
POWER WINDOW MOTOR ...............................39
DRIVER SIDE ......................................................... ...39
DRIVER SIDE : Component Function Check .........39
DRIVER SIDE : Diagnosis Procedure ....................39
PASSENGER SIDE ................................................ ...39
PASSENGER SIDE : Component Function Check
...
40
PASSENGER SIDE : Diagnosis Procedure ........ ...40
REAR LH ................................................................ ...40
REAR LH : Component Function Check ................41
REAR LH : Diagnosis Procedure ............................41
REAR RH ............................................................... ...41
REAR RH : Component Function Check ................41
REAR RH : Diagnosis Procedure ...........................42
ENCODER .........................................................43
DRIVER SIDE ......................................................... ...43
DRIVER SIDE : Component Function Check .........43
DRIVER SIDE : Diagnosis Procedure ....................43
PASSENGER SIDE ................................................ ...45
PASSENGER SIDE : Component Function Check
...
45
PASSENGER SIDE : Diagnosis Procedure ........ ...45
REAR LH ................................................................ ...47
REAR LH : Component Function Check ................47
REAR LH : Diagnosis Procedure ............................47
REAR RH ............................................................... ...49
REAR RH : Component Function Check ................49
REAR RH : Diagnosis Procedure ...........................50
DOOR KEY CYLINDER SWITCH ......................53
Component Function Check ................................ ...53
Diagnosis Procedure ..............................................53
Component Inspection ............................................54
POWER WINDOW SERIAL LINK .....................55
POWER WINDOW MAIN SWITCH ........................ ...55
POWER WINDOW MAIN SWITCH : Component
Function Check .......................................................
55
POWER WINDOW MAIN SWITCH : Diagnosis
Procedure ...............................................................
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FRONT POWER WINDOW SWITCH (PASSEN-
GER SIDE) ............................................................. ...
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FRONT POWER WINDOW SWITCH (PASSEN-
GER SIDE) : Component Function Check ..............
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FRONT POWER WINDOW SWITCH (PASSEN-
GER SIDE) : Diagnosis Procedure .........................
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REAR POWER WINDOW SWITCH LH .................. ...57
REAR POWER WINDOW SWITCH LH : Compo-
nent Function Check ...............................................
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REAR POWER WINDOW SWITCH LH : Diagno-
sis Procedure ..........................................................
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REAR POWER WINDOW SWITCH RH ................. ...59
REAR POWER WINDOW SWITCH RH : Compo-
nent Function Check ...............................................
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REAR POWER WINDOW SWITCH RH : Diagno-
sis Procedure ..........................................................
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SYMPTOM DIAGNOSIS ............................61
POWER WINDOWS DO NOT OPERATE
WITH POWER WINDOW MAIN SWITCH ...... ...
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Diagnosis Procedure ............................................ ...61
DRIVER SIDE POWER WINDOW ALONE
DOES NOT OPERATE ......................................
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Diagnosis Procedure ............................................ ...62
FRONT PASSENGER SIDE POWER WIN-
DOW DOES NOT OPERATE ............................
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WHEN POWER WINDOW MAIN SWITCH IS OP-
ERATED ................................................................. ...
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WHEN POWER WINDOW MAIN SWITCH IS OP-
ERATED : Diagnosis Procedure .............................
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WHEN FRONT POWER WINDOW SWITCH (PAS-
SENGER SIDE) IS OPERATED ............................. ...
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WHEN FRONT POWER WINDOW SWITCH
(PASSENGER SIDE) IS OPERATED : Diagnosis
Procedure ...............................................................
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WHEN BOTH POWER WINDOW MAIN SWITCH
AND FRONT POWER WINDOW SWITCH ARE
OPERATED ............................................................ ...
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WHEN BOTH POWER WINDOW MAIN SWITCH
AND FRONT POWER WINDOW SWITCH ARE
OPERATED : Diagnosis Procedure ........................
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REAR LH SIDE POWER WINDOW ALONE
DOES NOT OPERATE ......................................
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WHEN POWER WINDOW MAIN SWITCH IS OP-
ERATED ................................................................. ...
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WHEN POWER WINDOW MAIN SWITCH IS OP-
ERATED : Diagnosis Procedure .............................
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WHEN REAR POWER WINDOW SWITCH LH IS
OPERATED ............................................................ ...
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WHEN REAR POWER WINDOW SWITCH LH IS
OPERATED : Diagnosis Procedure ........................
64
Revision: 2010 May2011 QX56

PWC-3
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WHEN BOTH POWER WINDOW MAIN SWITCH
AND REAR POWER WINDOW SWITCH LH ARE
OPERATED ...........................................................
....
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WHEN BOTH POWER WINDOW MAIN SWITCH
AND REAR POWER WINDOW SWITCH LH ARE
OPERATED : Diagnosis Procedure ........................
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REAR RH SIDE POWER WINDOW ALONE
DOES NOT OPERATE .......................................
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WHEN POWER WINDOW MAIN SWITCH IS OP-
ERATED ................................................................ ....
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WHEN POWER WINDOW MAIN SWITCH IS OP-
ERATED : Diagnosis Procedure .............................
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WHEN REAR POWER WINDOW SWITCH RH IS
OPERATED ........................................................... ....
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WHEN REAR POWER WINDOW SWITCH RH IS
OPERATED : Diagnosis Procedure ........................
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WHEN BOTH POWER WINDOW MAIN SWITCH
AND REAR POWER WINDOW SWITCH RH ARE
OPERATED ........................................................... ....
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WHEN BOTH POWER WINDOW MAIN SWITCH
AND REAR POWER WINDOW SWITCH RH ARE
OPERATED : Diagnosis Procedure ........................
65
AUTO OPERATION DOES NOT OPERATE
BUT MANUAL OPERATE NORMALLY ............
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DRIVER SIDE ........................................................ ....66
DRIVER SIDE : Diagnosis Procedure .....................66
PASSENGER SIDE ...................................................66
PASSENGER SIDE : Diagnosis Procedure ........ ....66
REAR LH ............................................................... ....66
REAR LH : Diagnosis Procedure ............................66
REAR RH ............................................................... ....67
REAR RH : Diagnosis Procedure ............................67
ANTI-PINCH FUNCTION DOES NOT OPER-
ATE ....................................................................
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Diagnosis Procedure ........................................... ....68
POWER WINDOW RETAINED POWER
FUNCTION DOES NOT OPERATE NORMAL-
LY ......................................................................
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Diagnosis Procedure ...............................................69
DOOR KEY CYLINDER SWITCH DOES NOT
OPERATE POWER WINDOWS ........................
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Diagnosis Procedure ...............................................70
KEYLESS POWER WINDOW DOWN DOES
NOT OPERATE .................................................
71
Diagnosis Procedure ...............................................71
POWER WINDOW LOCK SWITCH DOES
NOT FUNCTION ................................................
72
Diagnosis Procedure ...............................................72
POWER WINDOW SWITCH DOES NOT IL-
LUMINATE ........................................................
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DRIVER SIDE ......................................................... ....73
DRIVER SIDE : Diagnosis Procedure .....................73
PASSENGER SIDE ....................................................73
PASSENGER SIDE : Diagnosis Procedure ........ ....73
REAR LH ................................................................ ....73
REAR LH : Diagnosis Procedure .............................73
REAR RH ............................................................... ....73
REAR RH : Diagnosis Procedure ............................73
REMOVAL AND INSTALLATION ...............74
POWER WINDOW MAIN SWITCH ...................74
Removal and Installation ..................................... ....74
Revision: 2010 May2011 QX56

PWC-6
< SYSTEM DESCRIPTION >
COMPONENT PARTS
SYSTEM DESCRIPTION
COMPONENT PARTS
Component Parts LocationINFOID:0000000006217264
1. BCMRefer to BCS-4, "
BODY CONTROL
SYSTEM : Componen t Parts Loca-
tion"
2. Front power window motor (driver
side) 3. Power window main switch
4. Front door lock assembly (driver side) (door key cylinder switch) 5. Front door switch (driver side) 6. Rear power window motor LH
7. Rear power window switch LH 8. Remote keyless entry receiver Refer to DLK-11, "
DOOR LOCK
SYSTEM :
ComponentPartsLocation"
A. View with front door finisher removed B. View with rear door finisher removed
JMKIA5275ZZ
Revision: 2010 May2011 QX56

COMPONENT PARTSPWC-7
< SYSTEM DESCRIPTION >
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Component DescriptionINFOID:0000000006217265
Component Function
BCM  Supplies power supply to power window switch.
 Controls retained power.
Power window main switch  Directly controls all power window motor of all doors.
 Controls anti-pinch operation of power window.
Front power window switch
(passenger side)  Controls anti-pinch operation of power window.
 Controls power window motor of passenger door.
Rear power window switch  Controls anti-pinch operation of power window.
 Controls power window motor of rear right and left 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.
Remote keyless entry receiver Receives lock/unlock signal from the intelligent key, and then transmits to BCM.
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 (driver side/passen-
ger side) Front door open/close condition and transmits to BCM.
Revision: 2010 May2011 QX56

SYSTEMPWC-9
< SYSTEM DESCRIPTION >
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The signal mentioned below is transmitted from BCM to power window main \
switch, front power window
switch (passenger side) and rear power window switch LH/RH.
 Keyless power window down signal
 Door switch signal
The signal mentioned below is transmitted from power window main switch to front power window switch (pas-
senger side) and rear power window switch LH/RH.
 Front passenger side door window and rear door window operation signal
 Power window control by door key cylinder switch signal
 Power window lock switch signal
 Retained power operation signal
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)
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.
ANTI-PINCH OPERATION
 Anti-pinch foreign lowers door glass 150 mm (5.9 in) when foreign material is pinched in door glass during
AUTO-UP operation.
 Encoder continues detecting the movement of power window motor and output the encoder pulse signal to
power window switch l while power window motor is operating.
 Resistance is applied to the power window motor ro tation 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 door glass for 150 mm (5.9 in) after it detects encoder pulse sig-
nal 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.
DOOR KEY CYLINDER SWITCH OPERATION
Hold the door key cylinder to the LOCK or UNLOCK direct ion for 1.5 seconds or more to OPEN or CLOSE all
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 1.5 se conds or more to perform CLOSE operation of the door
glass.
 Hold door key cylinder to UNLOCK position for 1.5 se conds 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 kept pressed for more than
3 seconds with the ignition switch OFF. The wi ndows 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.
Revision: 2010 May2011 QX56