2010 INFINITI QX56 roof

PWC-1
BODY EXTERIOR, DOORS, ROOF & VEHICLE SECURITY
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SECTION PWC
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CONTENTS
POWER WINDOW CONTROL SYSTEM
BASIC INSPECTION ....... .............................4
DIAGNOSIS AND REPAIR WORKFLOW ..... .....4
Work Flow ........................................................... ......4
FUNCTION DIAGNOSIS ...............................5
POWER WINDOW SYST EM ...............................5
System Diagram ................................................. ......5
System Description ...................................................5
Component Parts Location ......................................8
Component Description .............................................8
DIAGNOSIS SYSTEM (BCM) ............................10
COMMON ITEM ..................................................... ....10
COMMON ITEM : CONSULT-III Function (BCM -
COMMON ITEM) .....................................................
10
RETAINED PWR .......................................................10
RETAINED PWR : CONSULT-III Function (BCM -
RETAINED PWR) ...................................................
11
COMPONENT DIAGNOSIS .........................12
POWER SUPPLY AND GROUND CIRCUIT .. ....12
POWER WINDOW MAIN SWITCH ........................ ....12
POWER WINDOW MAIN SWITCH : Description ....12
POWER WINDOW MAIN SWITCH : Component
Function Check .......................................................
12
POWER WINDOW MAIN SWITCH : Diagnosis
Procedure ................................................................
12
FRONT POWER WINDOW SWITCH .................... ....13
FRONT POWER WINDOW SWITCH : Descrip-
tion ..........................................................................
13
FRONT POWER WINDOW SWITCH : Compo-
nent Function Check ...............................................
13
FRONT POWER WINDOW SWITCH : Diagnosis
Procedure ................................................................
14
REAR POWER WINDOW SWITCH ....................... ....15
REAR POWER WINDOW SWITCH : Description ....15
REAR POWER WINDOW SWITCH : Component
Function Check ........................................................
15
REAR POWER WINDOW SWITCH : Diagnosis
Procedure ................................................................
15
REAR POWER WINDOW SWITCH : Component
Inspection ................................................................
16
POWER WINDOW MOTOR ..............................17
DRIVER SIDE ......................................................... ....17
DRIVER SIDE : Description .....................................17
DRIVER SIDE : Component Function Check ..........17
DRIVER SIDE : Diagnosis Procedure .....................17
DRIVER SIDE : Component Inspection ...................18
PASSENGER SIDE ....................................................18
PASSENGER SIDE : Descript ion ............................18
PASSENGER SIDE : Component Function Check
....
18
PASSENGER SIDE : Diagnosis Procedure ............18
PASSENGER SIDE : Component Inspection ..........19
REAR LH ................................................................ ....20
REAR LH : Description ............................................20
REAR LH : Component Function Check .................20
REAR LH : Diagnosis Procedure .............................20
REAR LH : Component Inspection ..........................21
REAR RH ............................................................... ....21
REAR RH : Description ...........................................21
REAR RH : Component Function Check .................21
REAR RH : Diagnosis Procedure ............................21
REAR RH : Component Inspection .........................22
ENCODER .........................................................23
DRIVER SIDE ......................................................... ....23
DRIVER SIDE : Description .....................................23
DRIVER SIDE : Component Function Check ..........23
DRIVER SIDE : Diagnosis Procedure .....................23
PASSENGER SIDE ....................................................25
Revision: April 20092010 QX56

DIAGNOSIS SYSTEM (BCM)PWC-11
< FUNCTION DIAGNOSIS >
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RETAINED PWR : CONSULT-III Function (BCM - RETAINED PWR)INFOID:0000000005369878
DATA MONITOR
ACTIVE TEST
WORK SUPPORT
Monitor Item [Unit] Description
IGN ON SW [ON/OFF] Indicates condition of ignition switch.
DOOR SW-DR [ON/OFF] Indicates condition of front door switch LH.
DOOR SW-AS [ON/OFF] Indicates condition of front door switch RH.
Test Item Description
RETAINED PWR This test is able to supply RAP signal (powe
r) from BCM (body control module) to power window
system and power sunroof system (if equipped). Those systems can be operated when turning on
“RETAINED PWR” on CONSULT-III screen even if the ignition switch is turned OFF.
NOTE:
During this test, CONSULT-III can be operated with ignition switch in OFF position. “RETAINED
PWR” should be turned “ON” or “OFF” on CONSULT-III screen when ignition switch is ON. Then
turn ignition switch OFF to check retained power operation. CONSULT-III might be stuck if “RE-
TAINED PWR” is turned “ON” or “OFF” on CONSULT-III screen when ignition switch is OFF.
Work item Description
RETAINED PWR SET RAP signal’s power supply period can be changed by mode setting. Selects RAP signal’s power
supply period between three steps
• MODE1 (45 sec.)/MODE2 (OFF)/MODE 3 (2 min.).
Revision: April 20092010 QX56

RF-1
BODY EXTERIOR, DOORS, ROOF & VEHICLE SECURITY
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SECTION RF
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CONTENTS
ROOF
BASIC INSPECTION ....... .............................3
DIAGNOSIS AND REPAIR WORKFLOW ..... .....3
Work Flow ........................................................... ......3
INSPECTION AND ADJUSTMENT .....................5
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT .................................................... ......
5
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Description ..................................
5
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Special Repair Requirement .......
5
BASIC INSPECTION ...................................................5
BASIC INSPECTION : Spec ial Repair Require-
ment .................................................................... ......
5
FUNCTION DIAGNOSIS ...............................6
SUNROOF SYSTEM ...................................... .....6
System Diagram ................................................. ......6
System Description ...................................................6
Component Parts Location ......................................7
Component Description ............................................7
DIAGNOSIS SYSTEM (BCM) .............................8
COMMON ITEM ..................................................... ......8
COMMON ITEM : CONSULT-III Function (BCM -
COMMON ITEM) .......................................................
8
RETAINED PWR .........................................................8
RETAINED PWR : CONSULT-III Function (BCM -
RETAINED PWR) .....................................................
9
COMPONENT DIAGNOSIS .........................10
POWER SUPPLY AND GROUND CIRCUIT .. ....10
SUNROOF MOTOR ASSEMBLY .......................... ....10
SUNROOF MOTOR ASSEMBLY :
Diagnosis Procedure ..............................................
10
SUNROOF MOTOR ASSEMBLY : Special Repair
Requirement ........................................................ ....
11
SUNROOF SWITCH CIRCUIT ..........................12
Description ...............................................................12
Component Function Check ..................................12
Diagnosis Procedure ...............................................12
DOOR SWITCH .................................................14
Description ...............................................................14
Component Function Check ..................................14
Diagnosis Procedure ...............................................14
ECU DIAGNOSIS .........................................17
BCM (BODY CONTROL MODULE) .................17
Reference Value .................................................. ....17
Terminal Layout .......................................................20
Physical Values ................................................... ....20
Wiring Diagram ........................................................26
Fail Safe ..................................................................30
DTC Inspection Priority Chart ...............................31
DTC Index ...............................................................31
SUNROOF SYSTEM .........................................33
Reference Value ......................................................33
Wiring Diagram ........................................................34
SYMPTOM DIAGNOSIS ..............................39
SUNROOF DOES NOT OPERATE PROPER-
LY ......................................................................
39
Diagnosis Procedure ........................................... ....39
AUTO OPERATION DOES NOT OPERATE ....40
Diagnosis Procedure ...............................................40
DOES NOT STOP FULLY-OPEN OR FULLY-
CLOSED POSITION ..........................................
41
Diagnosis Procedure ...............................................41
Revision: April 20092010 QX56

RF-2
RETAINED POWER OPERATION DOES NOT
OPERATE PROPERLY .....................................
42
Diagnosis Procedure ........................................... ...42
SUNROOF DOES NOT OPERATE ANTI-
PINCH FUNCTION .......................................... ...
43
Diagnosis Procedure ........................................... ...43
SQUEAK AND RATTLE TROUBLE DIAG-
NOSES ...............................................................
44
Work Flow ............................................................ ...44
Generic Squeak and Rattle Troubleshooting ..........46
Diagnostic Worksheet .............................................48
PRECAUTION .............................................50
PRECAUTIONS .............................................. ...50
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. ...
50
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ..................................
50
Precaution ...............................................................51
PREPARATION ..........................................52
PREPARATION .............................................. ...52
Special Service Tool ............................................ ...52
Commercial Service Tool ........................................52
ON-VEHICLE REPAIR ...............................53
SUNROOF SYSTEM ...................................... ...53
Inspection ............................................................. ...53
Exploded View ........................................................56
Removal and Installation .........................................57
Revision: April 20092010 QX56

INSPECTION AND ADJUSTMENTRF-5
< BASIC INSPECTION >
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INSPECTION AND ADJUSTMENT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPL ACING CONTROL UNIT : Description
INFOID:0000000005147269
MEMORY RESET PROCEDURE
1. Please observe the following instructi ons at confirming the sunroof operation.
NOTE:
Do not disconnect the electronic power while the sunroof is operating or within 5 seconds after the sunroof
stops. (to wipe-out the memory of lid position and operating friction.)
2. Initialization of system should be conducted after the following conditions.
• When the sunroof motor is changed.
• When the sunroof does not operate normally. (Incomplete initialization conditions)
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement
INFOID:0000000005147270
INITIALIZATION PROCEDURE
If the sunroof does not close or open automatically, us e the following procedure to return sunroof operation to
normal.
1. Turn ignition switch ON.
2. Push and hold the sunroof tilt switch in the forw ard (DOWN) position until the sunroof is fully closed.
3. After the sunroof has closed all the way, push and hold the tilt switch forward (DOWN) again for more than 2 seconds to re-learn motor position.
4. Initialization is complete if the sunroof operates normally.
BASIC INSPECTION
BASIC INSPECTION : Special Repair RequirementINFOID:0000000005147271
BASIC INSPECTION
1.INSPECTION START
1. Check the service history.
2. Check the following parts.
• Fuse/circuit breaker blown.
• Poor connection, open or short circuit of harness connector.
• Battery voltage.
Is the inspection result normal?
YES >> Inspection End.
NO >> Repair or replace the malfunctioning parts.
Revision: April 20092010 QX56

RF-6
< FUNCTION DIAGNOSIS >
SUNROOF SYSTEM
FUNCTION DIAGNOSIS
SUNROOF SYSTEM
System DiagramINFOID:0000000005147272
SUNROOF
System DescriptionINFOID:0000000005147273
SUNROOF SYSTEM
INPUT/OUTPUT SIGNAL CHART
SUNROOF OPERATION
• The sunroof motor assembly operates with a power supply that is output from the BCM while the ignition
switch is ON or retained power is operating.
• The tilt up/down & slide open/close signals from the sunr oof switch enable the sunroof motor to move arbi-
trarily.
AUTO OPERATION
The sunroof AUTO feature makes it possible to sli de open and slide close or tilt up and tilt down the sunroof
without holding the sunroof switch in the slide open/tilt down or slide close/tilt up position.
RETAINED POWER OPERATION
Retained power operation is an additional power supply function that enables the sunroof system to operate
up to 45 seconds after the ignition switch is turned OFF.
Retained power function cancel conditions
• When a front door is opened (door switch ON)
• When ignition switch is turned ON again.
• When 45 seconds elapse on the timer.
ALKIA0861GB
Item Input signal to sunroof motor assembly Sunroof motor function Actuator
Sunroof switch Sunroof switch signal (tilt down or slide
open)
Sunroof controlSunroof motor
Sunroof switch signal (tilt up or slide
close)
BCM RAP signal
Revision: April 20092010 QX56

SUNROOF SYSTEMRF-7
< FUNCTION DIAGNOSIS >
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Component Parts LocationINFOID:0000000005147274
Component DescriptionINFOID:0000000005147275
ALKIA0867ZZ
1. Sunroof switch R104 2. Sunroof motor assembly R4 3. BCM M18, M19, M20
(View with instrument panel re-
moved)
4. Front door switch LH B8, RH B108
Component Function
BCM Supplies power to the sunroof motor assembly.
Sunroof switch Transmits tilt up/down & slide open/close operation signal to sunroof motor assembly.
Sunroof motor assembly The sunroof motor and integrated CPU enables tilt up/down & slide open/close as requested by
the sunroof switch.
Front door switch Detects door open/close condition and transmits to BCM.
Revision: April 20092010 QX56

DIAGNOSIS SYSTEM (BCM)RF-9
< FUNCTION DIAGNOSIS >
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RETAINED PWR : CONSULT-III Function (BCM - RETAINED PWR)INFOID:0000000005370296
DATA MONITOR
ACTIVE TEST
WORK SUPPORT
Monitor Item [Unit] Description
IGN ON SW [ON/OFF] Indicates condition of ignition switch.
DOOR SW-DR [ON/OFF] Indicates condition of front door switch LH.
DOOR SW-AS [ON/OFF] Indicates condition of front door switch RH.
Test Item Description
RETAINED PWR This test is able to supply RAP signal (powe
r) from BCM (body control module) to power window
system and power sunroof system (if equipped). Those systems can be operated when turning on
“RETAINED PWR” on CONSULT-III screen even if the ignition switch is turned OFF.
NOTE:
During this test, CONSULT-III can be operated with ignition switch in OFF position. “RETAINED
PWR” should be turned “ON” or “OFF” on CONSULT-III screen when ignition switch is ON. Then
turn ignition switch OFF to check retained power operation. CONSULT-III might be stuck if “RE-
TAINED PWR” is turned “ON” or “OFF” on CONSULT-III screen when ignition switch is OFF.
Work item Description
RETAINED PWR SET RAP signal’s power supply period can be changed by mode setting. Selects RAP signal’s power
supply period between three steps
• MODE1 (45 sec.)/MODE2 (OFF)/MODE 3 (2 min.).
Revision: April 20092010 QX56