2011 INFINITI QX56 key

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) ................................................................
36
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 ...............................................................
55
FRONT POWER WINDOW SWITCH (PASSEN-
GER SIDE) ............................................................. ...
56
FRONT POWER WINDOW SWITCH (PASSEN-
GER SIDE) : Component Function Check ..............
56
FRONT POWER WINDOW SWITCH (PASSEN-
GER SIDE) : Diagnosis Procedure .........................
56
REAR POWER WINDOW SWITCH LH .................. ...57
REAR POWER WINDOW SWITCH LH : Compo-
nent Function Check ...............................................
58
REAR POWER WINDOW SWITCH LH : Diagno-
sis Procedure ..........................................................
58
REAR POWER WINDOW SWITCH RH ................. ...59
REAR POWER WINDOW SWITCH RH : Compo-
nent Function Check ...............................................
59
REAR POWER WINDOW SWITCH RH : Diagno-
sis Procedure ..........................................................
59
SYMPTOM DIAGNOSIS ............................61
POWER WINDOWS DO NOT OPERATE
WITH POWER WINDOW MAIN SWITCH ...... ...
61
Diagnosis Procedure ............................................ ...61
DRIVER SIDE POWER WINDOW ALONE
DOES NOT OPERATE ......................................
62
Diagnosis Procedure ............................................ ...62
FRONT PASSENGER SIDE POWER WIN-
DOW DOES NOT OPERATE ............................
63
WHEN POWER WINDOW MAIN SWITCH IS OP-
ERATED ................................................................. ...
63
WHEN POWER WINDOW MAIN SWITCH IS OP-
ERATED : Diagnosis Procedure .............................
63
WHEN FRONT POWER WINDOW SWITCH (PAS-
SENGER SIDE) IS OPERATED ............................. ...
63
WHEN FRONT POWER WINDOW SWITCH
(PASSENGER SIDE) IS OPERATED : Diagnosis
Procedure ...............................................................
63
WHEN BOTH POWER WINDOW MAIN SWITCH
AND FRONT POWER WINDOW SWITCH ARE
OPERATED ............................................................ ...
63
WHEN BOTH POWER WINDOW MAIN SWITCH
AND FRONT POWER WINDOW SWITCH ARE
OPERATED : Diagnosis Procedure ........................
63
REAR LH SIDE POWER WINDOW ALONE
DOES NOT OPERATE ......................................
64
WHEN POWER WINDOW MAIN SWITCH IS OP-
ERATED ................................................................. ...
64
WHEN POWER WINDOW MAIN SWITCH IS OP-
ERATED : Diagnosis Procedure .............................
64
WHEN REAR POWER WINDOW SWITCH LH IS
OPERATED ............................................................ ...
64
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 ...........................................................
....
64
WHEN BOTH POWER WINDOW MAIN SWITCH
AND REAR POWER WINDOW SWITCH LH ARE
OPERATED : Diagnosis Procedure ........................
64
REAR RH SIDE POWER WINDOW ALONE
DOES NOT OPERATE .......................................
65
WHEN POWER WINDOW MAIN SWITCH IS OP-
ERATED ................................................................ ....
65
WHEN POWER WINDOW MAIN SWITCH IS OP-
ERATED : Diagnosis Procedure .............................
65
WHEN REAR POWER WINDOW SWITCH RH IS
OPERATED ........................................................... ....
65
WHEN REAR POWER WINDOW SWITCH RH IS
OPERATED : Diagnosis Procedure ........................
65
WHEN BOTH POWER WINDOW MAIN SWITCH
AND REAR POWER WINDOW SWITCH RH ARE
OPERATED ........................................................... ....
65
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 ............
66
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 ....................................................................
68
Diagnosis Procedure ........................................... ....68
POWER WINDOW RETAINED POWER
FUNCTION DOES NOT OPERATE NORMAL-
LY ......................................................................
69
Diagnosis Procedure ...............................................69
DOOR KEY CYLINDER SWITCH DOES NOT
OPERATE POWER WINDOWS ........................
70
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 ........................................................
73
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

PWC-10
< SYSTEM DESCRIPTION >
SYSTEM
Keyless power window down operation function can be changed by “PW DOWN SET” in “WORK SUPPORT”
mode of “INTELLIGENT KEY” of “B CM” using CONSULT-III. Refer to DLK-41, "
INTELLIGENT KEY : CON-
SULT-III Function (BCM - INTELLIGENT KEY)".
NOTE:
Use CONSULT-III to change settings.
MODE 1 (3 sec) / MODE 2 (OFF) / MODE 3 (5 sec)
Fail-safeINFOID:0000000006217268
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 a signal that is out of the specified value is detected
between the fully closed position and the actual position of the glass.
If fail-safe control, the system changes to a non-init ialized condition and the following function do not operate.
 Auto-up operation
 Anti-pinch function
 Retained power function
When fail-safe control is activated, perform initialization procedure to reco ver. If a malfunction is detected in
power window switch or more, fail -safe control is activated again.
Malfunction Malfunction condition
Pulse sensor malfunction When one pulse signal that is the specified value or more is detected continuously for the specified
time or more, while door glass is being operated UP or DOWN.
Both pulse sensors mal-
function When both pulse signals are not detected continuously for the specified time or more, while door
glass is being operated UP or DOWN.
Pulse direction malfunc-
tion When a pulse signal indicating that window is moving in the opposite direction against the power win-
dow motor is detected for the specified value or more, while door glass is being operated UP or
DOWN.
Glass recognition position
malfunction 1 When the actual door glass position that is out of specified value is detected compared to the door
glass fully closed position memorized in module, while door glass is being operated UP or DOWN.
Glass recognition position
malfunction 2 When pulse count that is out of the door glass full stroke value or more is detected, while door glass
is being operated UP or DOWN.
Revision: 2010 May2011 QX56

DIAGNOSIS SYSTEM (BCM)PWC-11
< SYSTEM DESCRIPTION >
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DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Fu nction (BCM - COMMON ITEM)INFOID:0000000006217269
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.
×: Applicable item
*: This item is indicated, but not used.
FREEZE FRAME DATA (FFD)
The BCM records the following vehicle condition at the time a particular DTC is detected, and displays on
CONSULT-III.
Diagnosis mode Function Description
Work Support Changes the setting for each system function.
Self Diagnostic Result Displays the diagnosis results judged by BCM. Refer to BCS-57, "
DTCIndex".
CAN Diag Support Monitor Monitors the reception status of CAN communication viewed from BCM. Refer to CONSULT-III opera-
tion manual.
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  Read and save the vehicle specification.
 Write the vehicle specification when replacing BCM.
System Sub system selection item Diagnosis mode
Work Support Data Monitor Active Test
Door lock DOOR LOCK ×××
Rear window defo gger REAR DEFOGGER ××
Warning chime BUZZER ××
Interior room lamp timer INT LAMP ×××
Exterior lamp HEAD LAMP ×××
Wiper and washer WIPER ×××
Turn signal and hazard warning lamps FLASHER ×××
— AIR CONDITONER* ××
 Intelligent Key system
 Engine start system INTELLIGENT KEY
×××
Combination switch COMB SW ×
Body control system BCM ×
NATS IMMU ×××
Interior room lamp battery saver BATTERY SAVER ×××
Back door TRUNK ×
Vehicle security system THEFT ALM ×××
RAP system RETAINED PWR ×
Signal buffer system SIGNAL BUFFER ××
Revision: 2010 May2011 QX56