2009 INFINITI QX56 200

RAX-1
TRANSMISSION & DRIVELINE
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CONTENTS
REAR AXLE
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
Caution ......................................................................3
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
WHEEL HUB .... .............................................. .....6
On-Vehicle Inspection and Service ..................... .....6
REMOVAL AND INSTALLATION ................7
WHEEL HUB ......................................................7
Removal and Installation ..................................... .....7
REAR DRIVE SHAFT .........................................9
Component ...............................................................9
Removal and Installation ..........................................9
DISASSEMBLY AND ASSEMBLY ..............11
REAR DRIVE SHAFT ........................................11
Disassembly and Assembly ................................. ....11
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... .............................................
16
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
16
Wheel Bearing ..................................................... ....16
Drive Shaft ...............................................................16
Boot Bands ..............................................................16
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RAX-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005873184
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:0000000005873185
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.
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PRECAUTIONSRAX-3
< PRECAUTION >
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5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of al l control units using CONSULT-III.
CautionINFOID:0000000003772254
Observe the following precautions when disassembling and servicing drive shaft.
 Perform work in a location which is as dust-free as possible.
 Before disassembling and servicing, clean the outside of parts.
 Prevention of the entry of foreign objects must be tak en into account during disassembly of the service loca-
tion.
 Disassembled parts must be carefully reassembled in t he correct order. If work is interrupted, a clean cover
must be placed over parts.
 Paper shop cloths must be used. Fabric shop cloths must not be used because of the danger of lint adhering
to parts.
 Disassembled parts (except for rubber parts) should be cleaned with kerosene which shall be removed by blowing with air or wiping with paper shop cloths.
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RAX-4
< PREPARATION >
PREPARATION
PREPARATION
PREPARATION
Special Service ToolINFOID:0000000003772255
The actual shapes of the Kent-Moore tools may differ from those of the special service tools illustrated here.
Commercial Service ToolINFOID:0000000003772256
Tool number
(Kent-Moore No.)
Tool name Description
KV38100500
(—)
Drift Installing drive shaft plug
a: 80 mm (3.15 in) dia.
b: 60 mm (2.36 in) dia.
KV38102200
(—)
Drift Installing drive shaft plug
a: 90 mm (3.54 in) dia.
b: 31 mm (1.22 in) dia.
KV40107300
(—)
Boot band crimping tool Installing boot bands
ZZA0701D
ZZA0920D
ZZA1229D
Tool name
Description
Power tools Removing bolts and nuts
PBIC0190E
Revision: December 20092009 QX56

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGRAX-5
< SYMPTOM DIAGNOSIS >
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SYMPTOM DIAGNOSIS
NOISE, VIBRATION AND HARSHN ESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000003772257
Use chart below to help you find the cause of the symp tom. If necessary, repair or replace these parts.
×: Applicable
Reference page
—
RAX-9RAX-9—
RAX-7—
DLN-242, "NVH Troubleshooting Chart"
FAX-5, "NVH Troubleshooting Chart" FSU-5, "NVH Troubleshooting Chart"RSU-5, "NVH Troubleshooting Chart"WT-36, "NVH Troubleshooting Chart"WT-36, "NVH Troubleshooting Chart"DLN-194, "NVH Troubleshooting Chart"BR-6, "NVH Troubleshooting Chart"ST-12, "NVH Troubleshooting Chart"
Possible cause and SUSPECTED PARTS
Excessive joint angle
Joint sliding resistance
Imbalance
Improper installation, looseness
Parts interference
DIFFERENTIAL
FRONT AXLE
FRONT SUSPENSION
REAR SUSPENSION
TIRES
ROAD WHEEL
PROPELLER SHAFT
BRAKES
STEERING
Symptom Noise
×× ×× ××× ×××××
Shake × × ×× ×× ×××××
Vibration ×× ××× ××× ×
Shimmy ×× ×× ×× ××
Shudder × ××××××
Poor quality ride or handling ×× ××× ×× ×
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RAX-6
< ON-VEHICLE MAINTENANCE >
WHEEL HUB
ON-VEHICLE MAINTENANCE
WHEEL HUB
On-Vehicle Inspection and ServiceINFOID:0000000003772258
Inspect the components for any looseness or back lash. Inspect each component for any excessive wear or
damage. Replace any components as necessary.
WHEEL BEARING INSPECTION
 Move the wheel hub and bearing assembly in the axial direction by hand to check the axial end play. Check
that the axial end play is with s pecification. Replace the wheel hub and bearing assembly as necessary.
 Rotate the wheel hub and bearing assembly to check that there are no unusual noises or other abnormal
conditions. Replace the wheel hub and bearing assembly as necessary. Axial end play : 0 mm (0 in)
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WHEEL HUBRAX-7
< REMOVAL AND INSTALLATION >
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REMOVAL AND INSTALLATION
WHEEL HUB
Removal and InstallationINFOID:0000000003772260
Rear Wheel Hub and Bearing Assembly
NOTE:
The rear ABS sensor is routed through the back of t he rear backing plate and into the side of the wheel hub
and bearing assembly. It is necessary to remove the wheel hub and bearing assembly to remove the rear ABS
sensor.
REMOVAL
1. Remove the wheel and tire using power tool.
2. Remove the rear brake caliper, without disconnecting t he hydraulic hose, using power tool. Reposition the
rear brake caliper aside using suitable wire. Refer to BR-36, "Removal and Installation of Brake Caliper
and Disc Rotor".
NOTE:
 Do not depress the brake pedal while the brake caliper is removed.
3. Remove the rear disc rotor.
4. Remove the cotter pin, then remove the nut from the drive shaft using power tool.
 Discard the cotter pin, use a new one for installation.
5. Remove the drive shaft. Refer to RAX-9, "Removal and Installa-
tion".
6. Remove the four wheel hub and bearing assembly bolts using power tool.  Discard the four wheel hub and bearing assembly bolts, use new ones for installation.
WDIA0189E
1. Back plate 2. Rear ABS sensor 3. Wheel hub and bearing assembly
4. Wheel stud 5. Rear disc rotor 6. Cotter pin
LDIA0050E
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RAX-8
< REMOVAL AND INSTALLATION >
WHEEL HUB
7. Pull out the wheel hub and bearing assembly for access toremove the rear ABS sensor from the wheel hub and bearing
assembly as shown.
 Inspect the ABS sensor O-ring, replace the ABS sensor
assembly if damaged.
 Clean the ABS sensor hole and mounting surface with a suit-
able brake cleaner and a clean lint-free shop rag. Be careful
that dirt and debris do not enter the axle bearing area.
 Apply a coat of suitable grease to the ABS sensor O-ring and
mounting hole.
CAUTION:
Do not pull on the ABS harness.
8. Remove the wheel hub and bearing assembly.
INSTALLATION
Installation is in the reverse order of removal.
 Apply grease 44003 7S000 to contact surface between wheel hub and drive shaft. Use sufficient gr ease to completely coat contact
area.
 Inspect the ABS sensor O-ring, replace the ABS sensor assembly
if damaged.
 Clean the ABS sensor hole and mounting surface with a suitable brake cleaner and a clean lint-free shop rag. Be careful that dirt
and debris do not enter the axle bearing area.
 Apply a coat of suitable grease to the ABS sensor O-ring and
mounting hole.
 Use a new cotter pin for installation.
 Use new wheel hub and bearing assembly bolts for installation.
LDIA0052E
WDIA0291E
Revision: December 20092009 QX56