2011 INFINITI QX56 Factory Service Manual

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Page 2905 of 5598

INFINITI QX56 2011 Factory Service Manual
PREPARATIONFAX-5
< PREPARATION > [2WD]
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PREPARATION
PREPARATION
Commercial Service ToolsINFOID:0000000006225414
Tool name Description
Power tool Loosening bolts and n

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INFINITI QX56 2011 Factory Service Manual
FAX-6
< SYMPTOM DIAGNOSIS >[2WD]
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING
SYMPTOM DIAGNOSIS
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:000000000

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INFINITI QX56 2011 Factory Service Manual
FRONT WHEEL HUB AND KNUCKLEFAX-7
< PERIODIC MAINTENANCE > [2WD]
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PERIODIC MAINTENANCE
FRONT WHEEL HUB AND KNUCKLE
InspectionINFOID:0000000006225416
MOUNTING INSPECTIO

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INFINITI QX56 2011 Factory Service Manual
FAX-8
< REMOVAL AND INSTALLATION >[2WD]
FRONT WHEEL HUB AND KNUCKLE
REMOVAL AND INSTALLATION
FRONT WHEEL HUB AND KNUCKLE
Exploded ViewINFOID:0000000006225418
Removal and InstallationINFOID:0000000006

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INFINITI QX56 2011 Factory Service Manual
FRONT WHEEL HUB AND KNUCKLEFAX-9
< REMOVAL AND INSTALLATION > [2WD]
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8. Remove shock absorber mounting bolt from lower link. Refer to FSU-10, "Removal and Installati

FRONT WHEEL HUB AND KNUCKLEFAX-9
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8. Remove shock absorber mounting bolt from lower link. Refer to FSU-10, "Removal and Installation".
9. Separate upper link from steering knuckle, using the ball joint remover (commercial service tool), and
remove upper link.
CAUTION:
Temporarily tighten the nut to prevent damage to threads and to prevent the ball joint remover
from suddenly coming off.
Never damage ball joint boot.
10. Remove wheel hub and bearing assembly, and then remove splash guard.
11. Remove lower link from steering knuckle. CAUTION:
Never damage ball joint boot.
12. Remove steering knuckle.
13. Remove hub bolts (1) from wheel hub and bearing assembly, using the ball joint remover (A) (commercial service tool).
CAUTION:
Remove hub bolt only when necessary.
Never hammer the hub bolt to avoid impact to the wheel
hub and bearing assembly.
Pull out the hub bolt in a di rection perpendicular to the
wheel hub and bearing assembly.
14. Perform inspection after removal. Refer to FAX-9, "
Inspection".
INSTALLATION
Note the following, and install in the reverse order of removal.
Place a suitable washer (A) as shown in the figure to install the hub
bolts (1) by using the tightening force of the nut (B).
CAUTION:
Check that there is no cl earance between wheel hub and
bearing assembly, and hub bolt.
Never reuse hub bolt.
Perform the final tightening of each of parts under unladen condi-
tions, which were removed when removing wheel hub and bearing
assembly and steering knuckle.
Never reuse cotter pin.
Perform inspection after installation. Refer to FA X - 9 , "
Inspection".
InspectionINFOID:0000000006225420
INSPECTION AFTER REMOVAL
Check components for deformation, cracks, and other damage. Replace it if necessary.
Ball Joint Inspection
Check boots of lower link and steering outer socket ba ll joint for breakage, axial play, and torque. Refer to
FSU-15, "
Inspection" and ST-46, "Inspection".
INSPECTION AFTER INSTALLATION
1. Check wheel sensor harness for proper connection. Refer to BRC-134, "FRONT WHEEL SENSOR :
Exploded View".
2. Check the wheel alignment. Refer to FSU-7, "
Inspection".
3. Adjust neutral position of steering angle sensor. Refer to BRC-64, "
Work Procedure".
JPDIF0299ZZ
JPDIF0300ZZ
Revision: 2010 May2011 QX56

Page 2910 of 5598

INFINITI QX56 2011 Factory Service Manual
FAX-10
< SERVICE DATA AND SPECIFICATIONS (SDS) [2WD]
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Wheel Hub and Bearing AssemblyIN

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INFINITI QX56 2011 Factory Service Manual
PRECAUTIONSFAX-11
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:000

PRECAUTIONSFAX-11
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006271941
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.
Precaution Necessary for Steering Wh eel Rotation after Battery Disconnect
INFOID:0000000006271943
NOTE:
Before removing and installing any control units, first tu rn the push-button ignition switch to the LOCK posi-
tion, then disconnect both battery cables.
After finishing work, confirm that all control unit connectors are connected properly, then re-connect both
battery cables.
Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If a DTC is detected, perform trouble diagnos is according to self-diagnosis results.
For vehicle with steering lock unit, if the battery is disconnected or discharged, the steering wheel will lock and
cannot be turned.
If turning the steering wheel is required with the batte ry disconnected or discharged, follow the operation pro-
cedure below before starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Turn the push-button ignition switch to ACC position. (At this time, the steering lock will be released.)
3. Disconnect both battery cables. The steering lock wil l remain released with both battery cables discon-
nected and the steering wheel can be turned.
4. Perform the necessary repair operation.
Revision: 2010 May2011 QX56

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INFINITI QX56 2011 Factory Service Manual
FAX-12
< PRECAUTION >[4WD]
PRECAUTIONS
5. When the repair work is completed, re-connect bot
h battery cables. With the brake pedal released, turn
the push-button ignition switch from ACC position to

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