2011 INFINITI QX56 Factory Service Manual

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Page 4401 of 5598

INFINITI QX56 2011 Factory Service Manual
HYDRAULIC BODY-MOTION CONTROL SYSTEMSCS-41
< REMOVAL AND INSTALLATION > [HBMC]
C
D
F
G H
I
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K L
M A
B
SCS
N
O P
Middle Tube Assembly RH (from
Rear Shock Absorber RH Upper to Right Side Middle Joint

Page 4402 of 5598

INFINITI QX56 2011 Factory Service Manual
SCS-42
< REMOVAL AND INSTALLATION >[HBMC]
HYDRAULIC BODY-MOTION CONTROL SYSTEM
INSTALLATION
PPMU
Note the following, and install in the reverse order of removal.
Check connection portion of each pi

Page 4403 of 5598

INFINITI QX56 2011 Factory Service Manual
HYDRAULIC BODY-MOTION CONTROL SYSTEMSCS-43
< REMOVAL AND INSTALLATION > [HBMC]
C
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M A
B
SCS
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PPMU, MIDDLE TUBE ASSEMBLY, PPMU PIPE : InspectionINFOID:0000000006256030
INSPECTION A

Page 4404 of 5598

INFINITI QX56 2011 Factory Service Manual
SCS-44
< REMOVAL AND INSTALLATION >[HBMC]
HYDRAULIC BODY-MOTION CONTROL SYSTEM
REAR TUBE ASSEMBLY : Exploded View
INFOID:0000000006256032
REAR TUBE ASSEMBLY : Removal and InstallationINFOID:000000000

Page 4405 of 5598

INFINITI QX56 2011 Factory Service Manual
HYDRAULIC BODY-MOTION CONTROL SYSTEMSCS-45
< REMOVAL AND INSTALLATION > [HBMC]
C
D
F
G H
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K L
M A
B
SCS
N
O P
3. Remove lower side pipe (A) of rear shock absorber LH.
4. Remove pipe (A) from left

Page 4406 of 5598

INFINITI QX56 2011 Factory Service Manual
SCS-46
< REMOVAL AND INSTALLATION >[HBMC]
HYDRAULIC BODY-MOTION CONTROL SYSTEM
3. Remove lower side pipe (A) of rear shock absorber RH.
4. Remove pipe (A) from left side rear joint (B).
5. Remove mou

Page 4407 of 5598

INFINITI QX56 2011 Factory Service Manual
PRECAUTIONSSCS-47
< PRECAUTION > [AIR LEVELIZER CONTROL SYSTEM]
C
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M A
B
SCS
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT

PRECAUTIONSSCS-47
< PRECAUTION > [AIR LEVELIZER CONTROL SYSTEM]
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006256135
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:0000000006256137
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

Page 4408 of 5598

INFINITI QX56 2011 Factory Service Manual
SCS-48
< PRECAUTION >[AIR LEVELIZER CONTROL SYSTEM]
PRECAUTIONS
5. When the repair work is completed, re-connect bot
h battery cables. With the brake pedal released, turn
the push-button ignition swi

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