Nissan Altima L32. Instruction — part 676

EX-1

ENGINE

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SECTION

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CONTENTS

EXHAUST SYSTEM

QR25DE

PRECAUTION . . . . . . . . . . . ...

2

PRECAUTIONS . . . . . . . . . . . . ...

2

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

2

Necessary for Steering Wheel Rotation After Bat-
tery Disconnect . . . . . . . . . . . . . .....

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PREPARATION . . . . . . . . . . .

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PREPARATION . . . . . . . . . . . . ...

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Special Service Tool . . . . . . . . . . . .....

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Commercial Service Tool . . . . . . . . . . ..

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ON-VEHICLE MAINTENANCE . . . . . .

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EXHAUST SYSTEM (QR25DE) . . . . . . ..

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Checking Exhaust System . . . . . . . . . ....

4

ON-VEHICLE REPAIR . . . . . . . . ..

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EXHAUST SYSTEM (QR25DE) . . . . . . ..

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

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

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Inspection After Installation . . . . . . . . . ...

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VQ35DE

PRECAUTION . . . . . . . . . . . ...

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PRECAUTIONS . . . . . . . . . . . . ..

8

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

8

Necessary for Steering Wheel Rotation After Bat-
tery Disconnect . . . . . . . . . . . . . . .

8

PREPARATION . . . . . . . . . . .

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PREPARATION . . . . . . . . . . . . ..

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Special Service Tool . . . . . . . . . . . . .

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Commercial Service Tool . . . . . . . . . . .

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ON-VEHICLE MAINTENANCE . . . . .

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EXHAUST SYSTEM (VQ35DE) . . . . . .

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Checking Exhaust System . . . . . . . . . ...

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ON-VEHICLE REPAIR . . . . . . . . .

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EXHAUST SYSTEM (VQ35DE) . . . . . .

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

11

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

12

Inspection After Installation . . . . . . . . . .

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EX-2

< PRECAUTION >

[QR25DE]

PRECAUTIONS

PRECAUTION

PRECAUTIONS

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

INFOID:0000000004205596

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 SR 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 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 SR section.

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

Service Instruction. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-

ness connectors.

Necessary for Steering Wheel Rotation After Battery Disconnect

INFOID:0000000004501253

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.

This vehicle is equipped with a push-button ignition switch and a 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 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. Carry the Intelligent Key or insert it to the key slot and 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.
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.

PREPARATION

EX-3

< PREPARATION >

[QR25DE]

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PREPARATION

Special Service Tool

INFOID:0000000004205598

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

Commercial Service Tool

INFOID:0000000004205599

Tool number
(Kent-Moore No.)
Tool name

Description

KV10114400
(J-38365)
Heated oxygen sensor wrench

Loosening or tightening heated oxygen sen-
sors:
a: 22 mm (0.87 in)

S-NT636

(Kent-Moore No.)
Tool name

Description

(J-43897-18)
(J-43897-12)
Oxygen sensor thread cleaner

Reconditioning the exhaust system threads
before installing a new oxygen sensor (Use
with anti-seize lubricant shown below):
a: J-43897-18 (18 mm dia.) for zirconia ox-
ygen sensor
b: J-43897-12 (12 mm dia.) for titania oxy-
gen sensor

Anti-seize lubricant (Permatex 133AR
or equivalent meeting MIL specifica-
tion MIL-A-907)

Lubricating oxygen sensor thread cleaning
tool when reconditioning exhaust system
threads

Power tool

Loosening nuts and bolts

AEM488

AEM489

PBIC0190E

EX-4

< ON-VEHICLE MAINTENANCE >

[QR25DE]

EXHAUST SYSTEM (QR25DE)

ON-VEHICLE MAINTENANCE

EXHAUST SYSTEM (QR25DE)

Checking Exhaust System

INFOID:0000000004205600

Check the exhaust pipes, muffler, and mounting components for

incorrect attachment, leaks, cracks, damage, or deterioration.

SMA211A