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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

H RESTRAINTS

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
SECTION SRS B

E
CONTENTS
PRECAUTIONS ......................................................... 3 . DIAGNOSTIC PROCEDURE 3 .......................... 27 . F
Precautions for Supplemental Restraint System DIAGNOSTIC PROCEDURE 4 (CONTINUED
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- FROM DIAGNOSTIC PROCEDURE 2) ............. 29 .
SIONER" ................................................................. 3
. DIAGNOSTIC PROCEDURE 5 .......................... 29 . G
Precautions for SRS "AIR BAG" and "SEAT BELT Trouble Diagnosis without CONSULT-II ................ 34 .
PRE-TENSIONER" Service .................................... 3 . DIAGNOSTIC PROCEDURE 6 .......................... 34 .
Occupant Classification System Precaution ........... 3 . WARNING LAMP FLASH CODE CHART .......... 34 .
SRS
PREPARATION .......................................................... 4 . Trouble Diagnosis: "AIR BAG" Warning Lamp Does
Commercial Service Tools ....................................... 4 . Not Turn OFF ........................................................ 38
.
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) ...... 5 . DIAGNOSTIC PROCEDURE 7 .......................... 38 .
SRS Configuration .................................................. 5 . Trouble Diagnosis: "AIR BAG" Warning Lamp Does I
Front Seat Belt Pre-Tensioner with Load Limiter ..... 6 Not Turn ON .......................................................... 39
.
Front Side Air Bag ................................................... 6 . DIAGNOSTIC PROCEDURE 8 .......................... 39 .
Side Curtain Air Bag ................................................ 6 . DRIVER AIR BAG MODULE ................................... 40 . J
Occupant Classification System (OCS) .................. 7 . Removal and Installation ....................................... 40.
Passenger Air Bag Status Condition ....................... 7 . REMOVAL .......................................................... 40
.
Component Parts of Occupant Classification Sys- INSTALLATION .................................................. 41
.
K
tem .......................................................................... 7
. SPIRAL CABLE ....................................................... 43
.
TROUBLE DIAGNOSIS ............................................. 8 . Removal and Installation ....................................... 43.
Trouble Diagnosis Introduction ................................ 8 . REMOVAL .......................................................... 43
.
DIAGNOSIS FUNCTION ...................................... 8 . INSTALLATION .................................................. 43
. L
HOW TO PERFORM TROUBLE DIAGNOSES FRONT PASSENGER AIR BAG MODULE ............. 45 .
FOR QUICK AND ACCURATE REPAIR .............. 8 . Removal and Installation ....................................... 45.
WORK FLOW ....................................................... 9 . REMOVAL .......................................................... 45
. M
Component Parts Location .................................... 10 . INSTALLATION .................................................. 45
.
Schematic ..............................................................11
. SIDE CURTAIN AIR BAG MODULE ....................... 46 .
Wiring Diagram -- SRS -- .................................... 12 . Removal and Installation ....................................... 46.
CONSULT-II Function ........................................... 19 . REMOVAL .......................................................... 46
.
DIAGNOSIS MODE FOR CONSULT-II .............. 19 . INSTALLATION .................................................. 46
.
HOW TO CHANGE SELF-DIAGNOSIS MODE CRASH ZONE SENSOR .......................................... 47 .
WITH CONSULT-II ............................................. 19 . Removal and Installation ....................................... 47.
HOW TO ERASE SELF-DIAGNOSIS RESULTS 20 ... REMOVAL .......................................................... 47
.
Self-Diagnosis Function (Without CONSULT-II) .... 20 . INSTALLATION .................................................. 47
.
HOW TO CHANGE SELF-DIAGNOSIS MODE SIDE AIR BAG (SATELLITE) SENSOR .................. 48 .
WITHOUT CONSULT-II ..................................... 20 . Removal and Installation ....................................... 48.
HOW TO ERASE SELF-DIAGNOSIS RESULTS 20 ... REMOVAL .......................................................... 48
.
SRS Operation Check ........................................... 21 . INSTALLATION .................................................. 48
.
DIAGNOSTIC PROCEDURE 1 .......................... 21 . FRONT SEAT BELT PRE-TENSIONER .................. 49 .
Trouble Diagnosis with CONSULT-II ..................... 23 . Removal and Installation ....................................... 49.
DIAGNOSTIC PROCEDURE 2 .......................... 23 .

Revision: 2005 November SRS-1 2006 Q45
DIAGNOSIS SENSOR UNIT .................................... 50 . SION) ..................................................................51
.
Removal and Installation ....................................... 50
. For Side Collision ...................................................53
.
REMOVAL .......................................................... 50
. WHEN THE SIDE AIR BAG IS ACTIVATED IN
INSTALLATION ................................................... 50
. THE SIDE COLLISION: ......................................53 .
ECU DISCRIMINATED NO. ................................ 50 . WHEN SRS IS NOT ACTIVATED IN THE SIDE
COLLISION DIAGNOSIS ......................................... 51 . COLLISION: ........................................................53.
For Frontal Collision ............................................... 51
. SRS INSPECTION (FOR SIDE COLLISION) .....53 .
SRS INSPECTION (FOR FRONTAL COLLI-

Revision: 2005 November SRS-2 2006 Q45
PRECAUTIONS

PRECAUTIONS PFP:00001
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" NHS00045

The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along B
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 C
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: D
q 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. E
q 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. F
q 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.
G
Precautions for SRS "AIR BAG" and "SEAT BELT PRE-TENSIONER" Service
NHS00046

q Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual. SRS
q Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 min-
utes.
For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt I
pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes
have passed.
q 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 instal- J
lation and replace as required.
q The spiral cable must be aligned with the neutral position since its rotations are limited. Do not attempt to
turn steering wheel or column after removal of steering gear. K
q Handle air bag module carefully. Always place driver and front passenger air bag modules with the pad
side facing upward and place front side air bag module standing with stud bolt side setting bottom.
q Conduct self-diagnosis to check entire SRS for proper function after replacing any components. L
q After air bag inflates, the front instrument panel assembly should be replaced if damaged.
Occupant Classification System Precaution NHS0006T
M
q Replace occupant classification system control unit and passenger front seat cushion as an assembly.
Refer to SE-182, "FRONT SEAT" .

Revision: 2005 November SRS-3 2006 Q45
PREPARATION

PREPARATION PFP:00002

Commercial Service Tools NHS00048

Tool name Description

Tamper resistant TORX bit Size: T30/T50

S-NT757

Revision: 2005 November SRS-4 2006 Q45
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

SUPPLEMENTAL RESTRAINT SYSTEM (SRS) PFP:28556
A
SRS Configuration NHS00049

SRS

PHIA1120E

J
The air bag deploys if the diagnosis sensor unit activates while the ignition switch is in the ON or START posi-
tion.
The collision modes for which supplemental restraint systems are activated are different among the SRS sys-
tems. For example, the driver air bag module and front passenger air bag module are activated in a frontal col- K
lision but not in a side collision.
SRS configurations which are activated for some collision modes are as follows;
L
SRS configuration Frontal collision Left side collision Right side collision
Driver air bag module

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