Infiniti QX56 (Z62). Manual - part 1248

 

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Infiniti QX56 (Z62). Manual - part 1248

 

 

ST-2

STEERING WHEEL  ...........................................

33

Exploded View  ........................................................

33

Removal and Installation  ........................................

33

STEERING COLUMN  ........................................

34

Exploded View  ........................................................

34

Removal and Installation  ........................................

34

Inspection ...............................................................

35

STEERING SHAFT  ............................................

37

Exploded View  ........................................................

37

Removal and Installation  ........................................

37

Inspection ...............................................................

39

STEERING GEAR AND LINKAGE ....................

41

Exploded View  ........................................................

41

Removal and Installation  ........................................

42

Disassembly and Assembly ....................................

43

Inspection ...............................................................

46

POWER STEERING OIL PUMP  ........................

48

Exploded View  ........................................................

48

Removal and Installation  ........................................

49

Disassembly and Assembly ....................................

50

Inspection ...............................................................

52

HYDRAULIC LINE .............................................

54

Exploded View  ........................................................

54

HEATED STEERING WHEEL SWITCH  ............

56

Exploded View  ........................................................

56

Removal and Installation .........................................

56

SERVICE DATA AND SPECIFICATIONS 
(SDS) ..........................................................

57

SERVICE DATA AND SPECIFICATIONS 
(SDS) .................................................................

57

General Specifications  ............................................

57

Steering Wheel Axial End Play and Play  ................

57

Steering Wheel Turning Force  ................................

57

Steering Angle  ........................................................

57

Steering Column Length  .........................................

57

Steering Column Mounting Dimensions ..................

57

Steering Column Operating Range .........................

57

Steering Shaft Sliding Range ..................................

58

Rack Sliding Force ..................................................

58

Rack Stroke  ............................................................

58

Socket Swing Force and Rotating Torque  ..............

58

Socket Axial End Play .............................................

58

Inner Socket Length ................................................

58

Relief Oil Pressure  ..................................................

58

PRECAUTIONS

ST-3

< PRECAUTION >

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PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER"

INFOID:0000000006272045

The Supplemental Restraint System such as “AIR 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 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 inoperative, which could increase the risk of personal injury or death in

the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIR BAG”.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses 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 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 Wheel Rotation after Battery Disconnect

INFOID:0000000006272046

NOTE:
• Before removing and installing any control units, first turn 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 diagnosis 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 battery 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 will remain released with both battery cables discon-
nected and the steering wheel can be turned.

4.

Perform the necessary repair operation.

ST-4

< PRECAUTION >

PRECAUTIONS

5.

When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn
the push-button ignition switch from ACC position to ON position, then to LOCK position. (The steering
wheel will lock when the push-button ignition switch is turned to LOCK position.)

6.

Perform self-diagnosis check of all control units using CONSULT-III.

Service Notice or Precautions for Steering System

INFOID:0000000006225573

• In case of removing steering gear assembly, make the final tightening with grounded and unloaded vehicle

condition, and then check wheel alignment.

• Observe the following precautions when disassembling.
- Before disassembly, thoroughly clean the outside of the unit.
- Disassembly should be done in a clean work area. It is important to prevent the internal parts from becoming

contaminated by dirt or other foreign matter.

- For easier and proper assembly, place disassembled parts in order on a parts rack.
- Use nylon cloth or paper towels to clean the parts; common shop rags can leave lint that might interfere with

their operation.

- Never reuse non-reusable parts.
- Before assembling, apply the specified grease to the directed parts.

PREPARATION

ST-5

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PREPARATION

PREPARATION

Special Service Tools

INFOID:0000000006225574

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Tool number
(Kent-Moore No.)
Tool name

Description

ST27180001
(J-25726-A)
Steering wheel puller

Removing steering wheel

ST3127S000
(J-25765-A)
Preload gauge

Inspecting sliding torque, steering torque, and 
rotating torque for ball joint

KV48103400
(

)

Preload adapter

Inspecting rotating torque

KV40107300
(

)

Boot band crimping tool

Installing boot band

KV48103500
(J-26357)
Oil pressure gauge

Measuring oil pump relief pressure

KV48102500
(J-33914)
Oil pressure gauge adapter

Measuring oil pump relief pressure

ZZA0819D

ZZA0806D

ZZA0824D

ZZA1229D

S-NT547

S-NT542

 

 

 

 

 

 

 

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