Infiniti M35/M45 Y50. Manual - part 997

 

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Infiniti M35/M45 Y50. Manual - part 997

 

 

PRECAUTIONS

PS-3

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PRECAUTIONS

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Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT 
BELT PRE-TENSIONER”

NGS000CZ

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 and SB section of this Service Man-
ual.

WARNING:

To avoid rendering the SRS inoperative, 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 per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

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
harness connectors.

Precautions Necessary for Steering Wheel Rotation After Battery Disconnect

NGS000D0

NOTE:

This Procedure is applied only to models with Intelligent Key system and NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS).

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 NVIS/IVIS, an electrically controlled steering lock
mechanism 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 power 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.

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 all control units using CONSULT-III.

PS-4

PRECAUTIONS

Precautions for Steering System

NGS000D1

In case of removing steering gear assembly, make the final tightening with grounded and unloaded vehi-
cle 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 becom-
ing 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.

Do not reuse non-reusable parts.

Before assembling, apply the specified grease to the directed parts.

PREPARATION

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PREPARATION

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Special Service Tools

NGS000D2

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
(See J-25765-A)
Preload gauge
1. GG9103000
(J-25765-A)
Torque wrench
2. HT62940000
(

)

Socket adapter
3. HT62900000
(

)

Socket adapter

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

KV48104400
(

)

Teflon ring correcting tool
a: 50 mm (1.97 in) dia.
b: 36 mm (1.42 in) dia.
c: 100 mm (3.94 in)

Installing rack Teflon ring

KV48103400
(

)

Preload adapter

Inspecting rotating torque

KV48103500
(J-26357)
Oil pressure gauge

Measuring oil pump relief pressure

S-NT544

S-NT541

S-NT550

ZZA0824D

S-NT547

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PREPARATION

Commercial Service Tools

NGS000D3

KV48102500
(J-33914)
Oil pressure gauge adapter

Measuring oil pump relief pressure

ST35300000
(

)

Drift
a: 45.1 mm (1.776 in) dia.
b: 59.0 mm (2.323 in) dia.

Installing oil pump oil seal (VQ35DE models)

Tool number
(Kent-Moore No.)
Tool name

Description

S-NT542

ZZA0881D

Tool number
Tool name

Description

Power tool

Loosening bolts and nuts

PBIC0190E

 

 

 

 

 

 

 

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