wheel INFINITI QX56 2009 Factory Service Manual

RAX-10
< REMOVAL AND INSTALLATION >
REAR DRIVE SHAFT
5. Separate the drive shaft from the wheel hub and bearing assembly by lightly tapping the end with a suit-able hammer and wood block. If it is difficult to separate, use a suitable puller.
6. Remove the drive shaft. CAUTION:
When removing the drive shaft, do not bend at an excessive angle to the drive shaft joint. Do not
excessively extend the slide joint.
INSPECTION AFTER REMOVAL
 Move the joint up and down, left and right, and in the axial direc-
tion. Check for any rough movement or significant looseness.
 Check the boot for cracks or other damage, and for any grease
leakage.
 If necessary, disassemble the drive shaft, and repair as necessary.
INSTALLATION
Installation is in the reverse order of removal.
 Do not reuse the drive shaft inside flange bolts, discard after removal and use new bolts for installation.
 Do not reuse the cotter pin, discard after removal and use a new cotter pin for installation.
RAA0030D
Drive shaft lock nut : Refer to RAX-9, "Component".
Drive shaft inside flange bolts : Refer to RAX-9, "Component"
.
Revision: December 20092009 QX56

REAR DRIVE SHAFTRAX-11
< DISASSEMBLY AND ASSEMBLY >
CEF
G H
I
J
K L
M A
B
RAX
N
O P
DISASSEMBLY AND ASSEMBLY
REAR DRIVE SHAFT
Disassembly and AssemblyINFOID:0000000005889855
DISASSEMBLY
Final Drive Side
1. Secure the drive shaft in a vise. CAUTION:
When securing the drive shaft in a vise, use copper or aluminum plates between the vise and the
drive shaft.
2. Remove the boot bands.
3. If the plug needs to be removed, move the boot to t he wheel side, then drive the plug out using a suitable
tool.
4. Remove the stopper ring using a suitable tool as shown, and pull the housing out.
1. Plug 2. Housing 3. Snap ring
4. Ball cage, steel ball, inner race assembly 5. Stopper ring 6. Boot band
7. Boot 8. Shaft 9. Circlip
10. Joint sub-assembly
SDIA1488E
SRA249A
Revision: December 20092009 QX56

RAX-12
< DISASSEMBLY AND ASSEMBLY >
REAR DRIVE SHAFT
5. Remove the snap ring using a suitable tool, then remove the ballcage, steel ball, inner race assembly from the drive shaft.
6. Remove the boot from the drive shaft.
7. Remove any old grease on the housing using paper towels.
Wheel Side
1. Secure the drive shaft in a vise. CAUTION:
When securing the drive shaft in a vise, use copp er or aluminum plates between the vise and the
drive shaft.
2. Remove the boot bands, then remove the boot from the joint sub-assembly.
3. Screw a suitable drive shaft puller 30 mm (1.18 in) or more into the threaded part of the joint sub-assembly. Pull the joint sub-
assembly out of the drive shaft as shown.
CAUTION:
 If the joint sub-assembly cannot be removed after five ormore attempts, replace the drive shaft and joint sub-
assembly as a set.
 Align the sliding hammer and drive shaft and remove the
joint sub-assembly by pulling directly.
4. Remove the boot from the drive shaft.
5. Remove the circlip from the drive shaft.
6. While rotating the ball cage, remove any old grease on the joint sub-assembly using paper towels.
INSPECTION AFTER DISASSEMBLY
Drive Shaft
 Replace the drive shaft if there is any runout, cracking, or other damage.
Joint Sub-assembly
 Check for any rough rotation or unusual axial looseness.
 Clean any foreign material from inside the joint sub-assembly.
 Check for any compression scars, cracks, or fractures.
CAUTION:
If any defective conditions are found in the joint sub-assembly comp onents, replace the entire joint
sub-assembly.
Sliding Joint Side (Housing)
 Check for any compression scars, cracks, fracture s, or unusual wear on the ball rolling surface.
 Check for any damage to the drive shaft screws.
 Check for any deformation of the boot installation components.
Ball Cage
 Check the sliding surface for any compression scars, cracks, or fractures.
Steel Ball
 Check for any compression scars, cr acks, fractures, or unusual wear.
Inner Race
SFA514A
SDIA0606E
Revision: December 20092009 QX56

RAX-14
< DISASSEMBLY AND ASSEMBLY >
REAR DRIVE SHAFT
7. After installation, pull on the shaft to check engagement between the joint sub-assembly and the stopper
ring.
8. Install the boot securely into the grooves (indicated by * marks) as shown.
CAUTION:
If there is grease on boot mating surfaces (indicated by*
marks) of shaft and housing, boot may come off. Remove
all grease from surfaces.
9. Check that the boot installation length (L) is the length indicated below. Insert a suitable tool into large side of the boot. Bleed the
air from the boot to pr event any boot deformation.
CAUTION:
 The boot may break if the boot installation length is less than the specified value.
 Do not to touch the tip of the t ool to the inside of the boot.
10. Secure the large and small ends of the boot with the new boot bands as shown.
NOTE:
Discard the old boot bands and use new ones for assembly.
11. After installing the housing and shaft, rotate the boot to check that the boot is positioned correctly. If the
boot is not positioned correctly, reposition the boot and secure the boot using a new boot band.
Wheel Side
1. Insert the Genuine NISSAN Grease or equivalent, into the joint
sub-assembly serration hole until the grease begins to ooze
from the ball groove and serration hole. Refer to MA-12, "Fluids
and Lubricants". After inserting the grease, use a shop cloth to
wipe off the grease that has oozed out.
2. Wind the serrated part of the shaft with tape. Install the boot
band and boot onto the shaft. Do not damage the boot.
NOTE:
Discard the old boot band and boot and use a new one for
assembly.
3. Remove the protective tape wound around the serrated part of the shaft. Boot installation length
(L) : 147.9 mm (5.82 in)
WDIA0287E
SFA395
SDIA1127E
SFA800
Revision: December 20092009 QX56

RAX-16
< SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Wheel BearingINFOID:0000000003772263
Drive ShaftINFOID:0000000003772264
Boot BandsINFOID:0000000004212446
Unit: mm (in)
Axial end play0 mm (0 in)
Joint Wheel side Final drive side
Grease capacity140
− 160 g
(4.93 − 5.64 oz) 175
− 195 g
(6.17 − 6.88 oz)
Boot installed length 134.5 mm (5.30 in) 147.9 mm (5.82 in)
Dimension (M) 1.0 - 4.0 (0.039 - 0.157)
DSF0047D
Revision: December 20092009 QX56

RF-2
RETAINED POWER OPERATION DOES NOT
OPERATE PROPERLY .....................................
40
Diagnosis Procedure ........................................... ...40
SUNROOF DOES NOT OPERATE ANTI-
PINCH FUNCTION .......................................... ...
41
Diagnosis Procedure ........................................... ...41
SQUEAK AND RATTLE TROUBLE DIAG-
NOSES ...............................................................
42
Work Flow ............................................................ ...42
Generic Squeak and Rattle Troubleshooting ..........44
Diagnostic Worksheet .............................................46
PRECAUTION .............................................48
PRECAUTIONS .............................................. ...48
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. ...
48
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ..................................
48
Precaution ...............................................................49
PREPARATION ..........................................50
PREPARATION .............................................. ...50
Special Service Tool ............................................ ...50
Commercial Service Tool ........................................50
ON-VEHICLE REPAIR ...............................51
SUNROOF SYSTEM ...................................... ...51
Inspection ............................................................. ...51
Exploded View ........................................................54
Removal and Installation .........................................55
Revision: December 20092009 QX56

RF-48
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005877824
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 severity 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 w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag 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 unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified 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 Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c 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 minu tes before performing any service.
Precaution Necessary for Steering W heel Rotation After Battery Disconnect
INFOID:0000000005890843
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK ″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be rotated.
4. Perform the necessary repair operation.
Revision: December 20092009 QX56

RSU-1
SUSPENSION
C
DF
G H
I
J
K L
M
SECTION RSU
A
B
RSU
N
O PCONTENTS
REAR SUSPENSION
PRECAUTION ................ ...............................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .....................................
2
PREPARATION ............................................4
PREPARATION .............................................. .....4
Special Service Tool ........................................... ......4
Commercial Service Tool ..........................................4
SYMPTOM DIAGNOSIS ...............................5
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING ........................ .....
5
NVH Troubleshooting Chart ................................ ......5
ON-VEHICLE MAINTENANCE .....................6
REAR SUSPENSION ASSEMBLY ................ .....6
On-Vehicle Inspection and Service ..................... ......6
Wheel AlignmentInspection .......................................6
ON-VEHICLE REPAIR ..................................9
REAR SUSPENSION ASSEMBLY ................ .....9
Component .......................................................... ......9
REMOVAL AND INSTALLATION ...............11
REAR SUSPENSION MEMBER .................... ....11
Removal and Installation ..................................... ....11
SHOCK ABSORBER ........................................15
Removal and Installation ..................................... ....15
Disposal ...................................................................15
SUSPENSION ARM ..........................................17
Removal and Installation .........................................17
FRONT LOWER LINK .......................................19
Removal and Installation .........................................19
REAR LOWER LINK & COIL SPRING .............21
Removal and Installation .........................................21
STABILIZER BAR .............................................23
Removal and Installation .........................................23
REAR LOAD LEVELING AIR SUSPENSION
COMPRESSOR ASSEMBLY ............................
24
Removal and Installation .........................................24
CONTROL UNIT ................................................26
Removal and Installation .........................................26
Initialization Procedure ............................................26
HEIGHT SENSOR .............................................27
Removal and Installation .........................................27
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... .............................................
29
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
29
Wheel Alignment (Unladen*1) ............................. ....29
Ball Joint ..................................................................29
Wheelarch Height (Unladen*1) ................................30
Revision: December 20092009 QX56

RSU-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005873203
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 w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISS AN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
 Do not use electrical test equipmen t 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 Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c 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 minu tes before performing any service.
Precaution Necessary for Steering W heel Rotation After Battery Disconnect
INFOID:0000000005873204
NOTE:
 This Procedure is applied only to models with Intelli gent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
 Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK ″ position.
 Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
Revision: December 20092009 QX56

RSU-4
< PREPARATION >
PREPARATION
PREPARATION
PREPARATION
Special Service ToolINFOID:0000000005889878
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service ToolINFOID:0000000003772288
Tool number
(Kent-Moore No.)
Tool name Description
—
(J-49286-1)
Drift and pull gauge Measuring drift and pull
AWEIA0156ZZ
Tool name
Description
Power tool  Removing wheel nuts
 Removing brake caliper assembly
 Removing rear suspension component
parts
PBIC0190E
Revision: December 20092009 QX56