INFINITI QX56 2011 Factory Service Manual

REAR DRIVE SHAFTRAX-15
< REMOVAL AND INSTALLATION >
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ii. Pinch projection on the band with suitable pliers to tighten band.
iii. Insert tip of band below end of the pawl.
12. Secure joint sub-assembly and shaft, and then check that they are in the correct position when rotating boot. Install them with
boot band when boot installation positions become incorrect.
CAUTION:
Never reuse boot band.
13. Install dust shield to drive shaft. CAUTION:
Never reuse dust shield.
FINAL DRIVE SIDE
FINAL DRIVE SIDE : Dis assembly and AssemblyINFOID:0000000006225471
DISASSEMBLY
1. Fix shaft with a vise.
CAUTION:
Protect shaft when fixing with a vi se using aluminum or copper plates.
2. Remove boot bands, and then remove boot from housing.
3. Put matching marks on housing and shaft. CAUTION:
Use paint or similar substance for matc hing marks. Never scratch the surface.
4. Remove stopper ring with suitable tool, and pull out housing.
5. Put matching marks on ball cage/steel ball/inner race assembly and shaft.
CAUTION:
Use paint or similar substance for matching marks. Never
scratch the surface.
6. Remove snap ring, then remove ball cage/steel ball/inner race assembly from shaft.
7. Remove boot from shaft.
ASSEMBLY
1. Remove old grease on housing with paper waste.
SDIA3558E
SRA249A
SFA514A
Revision: 2010 May2011 QX56

RAX-16
< REMOVAL AND INSTALLATION >
REAR DRIVE SHAFT
2. Install boot and boot bands to shaft.CAUTION:
 Wrap serration on shaft with tape (A) to protect the bootfrom damage.
 Never reuse boot and boot band.
3. Remove the tape wrapped around the serration on shaft.
4. Install ball cage/steel ball/inner race assembly (1), align it with the matching marks on shaft (2) put during the removal.
5. Secure ball cage/steel ball/inner race assembly onto shaft with snap ring (3).
CAUTION:
Never reuse snap ring.
6. Apply the appropriate amount of grease onto housing and slid- ing surface.
7. Install stopper ring to housing. CAUTION:
Never reuse stopper ring.
8. After installed, pull shaft to check engagement between housing and stopper ring.
9. Install boot securely into grooves (indicated by “*” marks) shown in the figure.
CAUTION:
If grease adheres to the boot mounting surfaces (indicated
by “*” marks) on shaft or housing, boot may be removed.
Remove all grease from the surfaces.
10. To prevent deformation of the boot, adjust the boot installation
length (L) to the value shown below by inserting the suitable tool
into the inside of boot from the large diameter side of boot and
discharging inside air.
CAUTION:
 If the boot installation length is outsid e the standard, it may cause breakage of boot.
 Be careful not to touch the inside of the boot with the tip of tool.
11. Install boot bands securely as shown in the figure. CAUTION:
Never reuse boot band.
12. Secure housing and shaft, and then check that they are in the correct position when rotating boot. Install them with boot band
when the mounting positi ons become incorrect.
CAUTION:
Never reuse boot band.
InspectionINFOID:0000000006225472
INSPECTION AFTER REMOVAL
JPDIF0009ZZ
Grease amount : Refer to RAX-18, "Drive Shaft".
L: Refer to RAX-18, "
Drive Shaft".
JPDIG0004ZZ
JPDIG0137ZZ
PDIA1188J
Revision: 2010 May2011 QX56

REAR DRIVE SHAFTRAX-17
< REMOVAL AND INSTALLATION >
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 Move joint up/down, left/right, and in the axial directi on. Check for any rough movement or significant loose-
ness.
 Check boot for cracks or other damage, and also for grease leak-
age.
 If a malfunction is found, disassem ble drive shaft, and then replace
with new one.
INSPECTION AFTER INSTALLATION
1. Check wheel alignment. Refer to RSU-6, "Inspection".
2. Adjust neutral position of steering angle sensor. Refer to BRC-64, "
Work Procedure".
3. Adjust levelizer adjustment of height sensor. Refer to EXL-61, "
LEVELIZER ADJUSTMENT : Special
Repair Requirement".
4. Check standard vehicle height setting of vehicle height sensor. Refer to SCS-67, "
Work Procedure".
RAA0030D
Revision: 2010 May2011 QX56

RAX-18
< SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Wheel Hub and Bearing AssemblyINFOID:0000000006225473
Drive ShaftINFOID:0000000006225474
Item Standard
Axial end play 0.05 mm (0.002 in) or less
ItemStandard
Wheel side Final drive side
Grease quantity 145 – 165 g (5.11 – 5.82 oz) 175 – 195 g (6.17 – 6.88 oz)
Boots installed length 134.5 mm (5.30 in) 147.9 mm (5.82 in)
Revision: 2010 May2011 QX56

RF-1
BODY EXTERIOR, DOORS, ROOF & VEHICLE SECURITY
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CONTENTS
ROOF
PRECAUTION ................ ...............................3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
PREPARATION ............................................4
PREPARATION .............................................. .....4
Commercial Service Tool .................................... ......4
SYSTEM DESCRIPTION ..............................5
COMPONENT PARTS ................................... .....5
Component Parts Location ................................ ......5
Component Description ............................................5
SYSTEM ..............................................................6
System Diagram ................................................. ......6
System Description ...................................................6
ECU DIAGNOSIS INFORMATION ...............7
BCM (BODY CONTROL MODULE) ............... .....7
List of ECU Reference ........................................ ......7
SUNROOF SYSTEM ...................................... .....8
Reference Value ................................................. ......8
WIRING DIAGRAM .......................................9
SUNROOF MOTOR ASSEMBLY ................... .....9
Wiring Diagram ................................................... ......9
BASIC INSPECTION ...................................16
DIAGNOSIS AND REPAIR WORKFLOW ..... ....16
WorkFlow ............................................................ ....16
INSPECTION AND ADJUSTMENT ....................17
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT .................................................... ....
17
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Description .................................
17
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Special Repair Requirement ......
17
DTC/CIRCUIT DIAGNOSIS .........................18
POWER SUPPLY AND GROUND CIRCUIT ....18
Diagnosis Procedure .......................................... ....18
VEHICLE SPEED SIGNAL CIRCUIT ................20
Component Function Check ..................................20
Diagnosis Procedure ..............................................20
SUNROOF SWITCH ..........................................21
Component Function Check ..................................21
Diagnosis Procedure ..............................................21
Component Inspection .............................................22
SYMPTOM DIAGNOSIS ..............................23
SUNROOF DOES NOT OPERATE PROPER-
LY ......................................................................
23
Description ........................................................... ....23
Diagnosis Procedure ...............................................23
SUNROOF DOES NOT OPERATE ANTI-
PINCH FUNCTION ............................................
24
Diagnosis Procedure ........................................... ....24
RETAINED POWER OPERATION DOES NOT
OPERATE PROPERLY .....................................
25
Diagnosis Procedure ...............................................25
SQUEAK AND RATTLE TROUBLE DIAG-
NOSES ..............................................................
26
Work Flow ................................................................26
Inspection Procedure ...............................................28
Diagnostic Worksheet ..............................................30
REMOVAL AND INSTALLATION ...............32
GLASS LID ........................................................32
Revision: 2010 May2011 QX56

RF-2
Exploded View ........................................................32
Removal and Installation ........................................33
Adjustment ..............................................................33
SUNROOF MOTOR ASSEMBLY ......................35
Exploded View ..................................................... ...35
Removal and Installation ........................................36
SUNROOF UNIT ASSEMBLY ...........................37
Exploded View ..................................................... ...37
Removal and Installation ...................................... ...38
Disassembly and Assembly ....................................39
SUNSHADE .......................................................40
Exploded View ..................................................... ...40
Removal and Installation .........................................40
SUNROOF SWITCH ..........................................41
Removal and Installation ...................................... ...41
Revision: 2010 May2011 QX56

PRECAUTIONSRF-3
< PRECAUTION >
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006141220
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIR BAG” and “SEAT BELT” of this
Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision that would result in air ba g inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIR BAG”.
 Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
 When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the
ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s)
with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly
causing serious injury.
 When using air or electric power tools or hammers , always switch the ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
Revision: 2010 May2011 QX56

RF-4
< PREPARATION >
PREPARATION
PREPARATION
PREPARATION
Commercial Service ToolINFOID:0000000006141221
Tool nameDescription
Engine ear Locates the noise
Remover tool Removes clips, pawls, and metal clips
SIIA0995E
JMKIA3050ZZ
Revision: 2010 May2011 QX56

COMPONENT PARTSRF-5
< SYSTEM DESCRIPTION >
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SYSTEM DESCRIPTION
COMPONENT PARTS
Component Parts LocationINFOID:0000000006141222
Component DescriptionINFOID:0000000006141223
JMKIA5171ZZ
1. Front door switch 2. BCM Refer to BCS-4, "
BODY CONTROL
SYSTEM : Compon ent Parts Loca-
tion". 3. Combination meter
Refer to MWI-6, "
METER SYSTEM :
Component Parts Location".
4. Sunroof motor assembly 5. Sunroof switch
Component Function
BCM Supplies the power supply to sunroof motor assembly.
Sunroof switch Transmits tilt up/down & slides open/close operation signal to sunroof motor assembly.
Sunroof motor assembly It is sunroof motor and CPU integrated type that enables tilt up/down & slide open/close by sun-
roof switch operation
Front door switch Detects door open/close condition and transmits to BCM.
Combination meter Transmits vehicle speed signal to sunroof motor assembly.
Revision: 2010 May2011 QX56

RF-6
< SYSTEM DESCRIPTION >
SYSTEM
SYSTEM
System DiagramINFOID:0000000006141224
SUNROOF
System DescriptionINFOID:0000000006141225
SUNROOF SYSTEM
 Sunroof motor assembly operates with the power supply that is output from BCM while ignition switch is ON
or retained power is operating.
 Tilt up/down & slide open/close signals from sunroof s witch enables operate sunroof motor to move arbi-
trarily.
 Sunroof motor assembly receives a vehicle speed signal from combination meter and controls the sunroof motor operation.
AUTO OPERATION
Sunroof AUTO feature makes it possible to slide open and slide close or tilt up and tilt down the sunroof with-
out 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 sunroof system to operate dur-
ing 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)
ANTI-PINCH FUNCTION
The CPU of sunroof motor assembly monitors the s unroof motor operation and the sunroof position (fully-
closed or other) by the signals from sunroof motor.
When sunroof motor detects an interruption during the following slide close and tilt down operation, sunroof
switch controls the motor for open and the sunroof will operate until full up position (when tilt down operate) or
150 mm (5.91 in) or more in an open direction (when slide close operate):
JMKIA5324GB
Revision: 2010 May2011 QX56