Nissan Altima L32. Instruction — part 1362

SR-1

RESTRAINTS

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K

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SECTION

SR

A

B

SR

N

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P

CONTENTS

SRS AIRBAG

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

2

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

2

Supplemental Restraint System (SRS) "AIR B
AG" and "SEAT BELT PRE-TENSIONER" . . ....

2

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

2

Service . . . . . . . . . . . . . . . . . ..

2

Occupant Classification System . . . . . . . ..

3

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

4

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

4

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

4

Commercial Service Tools . . . . . . . . . ....

4

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

5

DRIVER AIR BAG MODULE . . . . . . . ...

5

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

5

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

5

SPIRAL CABLE . . . . . . . . . . . . ..

8

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

8

FRONT PASSENGER AIR BAG MODULE . ..

10

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

10

SIDE CURTAIN AIR BAG MODULE . . . .

12

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

12

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

12

CRASH ZONE SENSOR . . . . . . . . ...

14

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

14

SIDE AIR BAG (SATELLITE) SENSOR . . ...

15

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

15

DIAGNOSIS SENSOR UNIT . . . . . . . .

17

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

17

OCCUPANT CLASSIFICATION SYSTEM
CONTROL UNIT . . . . . . . . . . . .

19

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

19

COLLISION DIAGNOSIS . . . . . . . . ..

20

For Frontal Collision . . . . . . . . . . . .

20

For Side and Rollover Collision . . . . . . . ...

21

SR-2

< PRECAUTION >

PRECAUTIONS

PRECAUTION

PRECAUTIONS

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

INFOID:0000000004205560

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:0000000004501333

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.

Service

INFOID:0000000004205561

• Do not use electrical test equipment to check SRS circuits unless instructed to in this Instruction.

• Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 min-

utes.

PRECAUTIONS

SR-3

< PRECAUTION >

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For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-

tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have

passed.

• Diagnosis sensor unit must always be installed with their arrow marks “

⇐” pointing towards the front of the

vehicle for proper operation. Also check diagnosis sensor unit for cracks, deformities or rust before installa-

tion and replace as required.

• The spiral cable must be aligned with the neutral position since its rotations are limited. Do not turn steering

wheel and column after removal of steering gear.

• Handle air bag module carefully. Always place driver and front passenger air bag modules with the pad side

facing upward and seat mounted front side air bag module standing with the stud bolt side facing down.

• Conduct self-diagnosis to check entire SRS for proper function after replacing any components.

• After air bag inflates, the front instrument panel assembly should be replaced if damaged.

• Always replace instrument panel pad following front passenger air bag deployment.

Occupant Classification System

INFOID:0000000004205562

• Replace occupant classification system control unit and passenger front seat cushion as an assembly.

Refer to

SE-29, "PASSENGER SIDE : Disassembly"

.

SR-4

< PREPARATION >

PREPARATION

PREPARATION

PREPARATION

Special Service Tool

INFOID:0000000004205563

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

Commercial Service Tools

INFOID:0000000004205564

Tool number
(Kent-Moore No.)
Tool name

Description

—

(J-44615)
Air bag lock master key set

Removing and installing air bag lock

LRS191

Tool name

Description

Power tools

Loosening bolts, nuts and screws

PIIB1407E