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srs


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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)


H RESTRAINTS

                                                                                                                                                             A




                   SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
                                                                                 SECTION                   SRS                                               B



                                                                                                                                                             C


                                                                                                                                                             D


                                                                                                                                                             E
                                                               CONTENTS
PRECAUTIONS ......................................................... 3
                                                                     .             DIAGNOSTIC PROCEDURE 4 (CONTINUED                                         F
 Precautions for Supplemental Restraint System                                     FROM DIAGNOSTIC PROCEDURE 2) ............. 25                    .
 (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-                                           DIAGNOSTIC PROCEDURE 5 .......................... 25             .
 SIONER" ................................................................. 3
                                                                     .           Trouble Diagnosis without CONSULT-II ................ 29           .        G
 Precautions for SRS "AIR BAG" and "SEAT BELT                                      DIAGNOSTIC PROCEDURE 6 .......................... 29             .
 PRE-TENSIONER" Service .................................... 3       .             WARNING LAMP FLASH CODE CHART .......... 30                      .
 Wiring Diagrams and Trouble Diagnosis ................. 3           .           Trouble Diagnosis: "AIR BAG" Warning Lamp Does
                                                                                                                                                             SRS
PREPARATION .......................................................... 4
                                                                     .           Not Turn OFF ........................................................ 34
                                                                                                                                                    .
 Commercial Service Tools ....................................... 4  .             DIAGNOSTIC PROCEDURE 7 .......................... 34             .
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) ...... 5                         .           Trouble Diagnosis: "AIR BAG" Warning Lamp Does
 SRS Configuration .................................................. 5
                                                                     .           Not Turn ON .......................................................... 35
                                                                                                                                                    .         I
 Front Seat Belt Pre-tensioner with Load Limiter ..... 6                           DIAGNOSTIC PROCEDURE 8 .......................... 35             .
 Front Side Air Bag ................................................... 6
                                                                     .         DRIVER AIR BAG MODULE ................................... 36         .
 Side Curtain Air Bag ................................................ 6
                                                                     .           Removal and Installation ....................................... 36.        J
TROUBLE DIAGNOSIS ............................................. 7    .             REMOVAL .......................................................... 36
                                                                                                                                                    .
 Trouble Diagnosis Introduction ................................ 7   .             INSTALLATION .................................................. 37
                                                                                                                                                    .
   DIAGNOSIS FUNCTION ...................................... 7       .         SPIRAL CABLE ....................................................... 38
                                                                                                                                                    .
                                                                                                                                                             K
   HOW TO PERFORM TROUBLE DIAGNOSIS                                              Removal and Installation ....................................... 38.
   FOR QUICK AND ACCURATE REPAIR .............. 7                    .             REMOVAL .......................................................... 38
                                                                                                                                                    .
   WORK FLOW ....................................................... 8
                                                                     .             INSTALLATION .................................................. 39
                                                                                                                                                    .
 Component Parts Location ...................................... 9   .         FRONT PASSENGER AIR BAG MODULE ............. 40                      .        L
 Schematic ............................................................. 10
                                                                     .           Removal and Installation ....................................... 40.
 Wiring Diagram -- SRS -- .....................................11    .             REMOVAL .......................................................... 40
                                                                                                                                                    .
 CONSULT-II Function ........................................... 15  .             INSTALLATION .................................................. 40
                                                                                                                                                    .        M
   DIAGNOSIS MODE FOR CONSULT-II .............. 15                   .         SIDE CURTAIN AIR BAG MODULE ....................... 41               .
   HOW TO CHANGE SELF-DIAGNOSIS MODE                                             Removal and Installation ....................................... 41.
   WITH CONSULT-II ............................................. 15  .             REMOVAL .......................................................... 41
                                                                                                                                                    .
   HOW TO ERASE SELF-DIAGNOSTIC                                                    INSTALLATION .................................................. 42
                                                                                                                                                    .
   RESULTS ........................................................... 16
                                                                     .         CRASH ZONE SENSOR .......................................... 43      .
 Self-Diagnosis Function (Without CONSULT-II) .... 16                .           Removal and Installation ....................................... 43.
   HOW TO CHANGE SELF-DIAGNOSIS MODE                                               REMOVAL .......................................................... 43
                                                                                                                                                    .
   WITHOUT CONSULT-II ..................................... 16       .             INSTALLATION .................................................. 43
                                                                                                                                                    .
   HOW TO ERASE SELF-DIAGNOSIS RESULTS 16                            ...       SIDE AIR BAG (SATELLITE) SENSOR .................. 44                .
 SRS Operation Check ........................................... 17  .           Removal and Installation ....................................... 44.
   DIAGNOSTIC PROCEDURE 1 .......................... 17              .             REMOVAL .......................................................... 44
                                                                                                                                                    .
 Trouble Diagnosis with CONSULT-II ..................... 19          .             INSTALLATION .................................................. 44
                                                                                                                                                    .
   DIAGNOSTIC PROCEDURE 2 .......................... 19              .         FRONT SEAT BELT PRE-TENSIONER .................. 45                  .
   DIAGNOSTIC PROCEDURE 3 .......................... 23              .           Removal and Installation ....................................... 45.




Revision: 2004 November                                                 SRS-1                                                   2004.5 FX35/FX45
DIAGNOSIS SENSOR UNIT .................................... 46      .         SION) ..................................................................47
                                                                                                                                                  .
 Removal and Installation ....................................... 46
                                                                   .        For Side Collision ...................................................48
                                                                                                                                                  .
   REMOVAL .......................................................... 46
                                                                   .         WHEN THE SIDE AIR BAG IS ACTIVATED IN
   INSTALLATION ................................................... 46
                                                                   .         THE SIDE COLLISION: ......................................48         .
   ECU DISCRIMINATED NO. ................................ 46       .         WHEN SRS IS NOT ACTIVATED IN THE SIDE
COLLISION DIAGNOSIS ......................................... 47   .         COLLISION: ........................................................49.
 For Frontal Collision ............................................... 47
                                                                   .         SRS INSPECTION (FOR SIDE COLLISION) .....49                          .
   SRS INSPECTION (FOR FRONTAL COLLI-




Revision: 2004 November                                              SRS-2                                                   2004.5 FX35/FX45
                                              PRECAUTIONS

PRECAUTIONS                                                         PFP:00001
                                                                                                                         A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER"                                                                                           AHS000HB


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
                                                                                                              AHS000HC

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 turn steer-
    ing wheel and 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 seat mounted front side air bag module standing with the stud bolt side facing
    down.                                                                                                           L
q   Conduct self-diagnosis to check entire SRS for proper function after replacing any components.
q   After air bag inflates, the front instrument panel assembly should be replaced if damaged.
q   Always replace instrument panel pad following front passenger air bag deployment.                               M

Wiring Diagrams and Trouble Diagnosis                                                                         AHS000HE


When you read wiring diagrams, refer to the following:
q  GI-15, "How to Read Wiring Diagrams" in GI section
q  PG-3, "POWER SUPPLY ROUTING CIRCUIT" in PG section
When you perform trouble diagnosis, refer to the following:
q  GI-11, "How to Follow Trouble Diagnoses" in GI section
q  GI-27, "How to Perform Efficient Diagnosis for an Electrical Incident" in GI section
Check for any service bulletins before servicing the vehicle.




Revision: 2004 November                              SRS-3                                      2004.5 FX35/FX45
                               PREPARATION

PREPARATION                                                           PFP:00002

Commercial Service Tools                                                 AHS000HG


   Tool name                                    Description




   Tamper resistant TORX bit                    Size: T30



                                      S-NT757




Revision: 2004 November           SRS-4                       2004.5 FX35/FX45
                            SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)                                                                        PFP:28556
                                                                                                                           A
SRS Configuration                                                                                               AHS000HH




                                                                                                                           B



                                                                                                                           C


                                                                                                                           D


                                                                                                                           E



                                                                                                                           F


                                                                                                                           G


                                                                                                                           SRS



                                                                                                                            I

                                                                                                          PHIA0698E


                                                                                                                           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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