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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

H RESTRAINTS

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
SECTION SRS B

E
CONTENTS
PRECAUTIONS ......................................................... 3
. FROM DIAGNOSTIC PROCEDURE 2) ............. 26 . F
Precautions for Supplemental Restraint System DIAGNOSTIC PROCEDURE 5 .......................... 26 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Trouble Diagnosis without CONSULT-II ................ 30 .
SIONER" ................................................................. 3
. DIAGNOSTIC PROCEDURE 6 .......................... 30 . G
Precautions for SRS "AIR BAG" and "SEAT BELT WARNING LAMP FLASH CODE CHART .......... 31 .
PRE-TENSIONER" Service .................................... 3 . Trouble Diagnosis: "AIR BAG" Warning Lamp Does
Precautions for Battery Service ............................... 3 . Not Turn Off ........................................................... 35
.
SRS
Wiring Diagrams and Trouble Diagnosis ................. 3 . DIAGNOSTIC PROCEDURE 7 .......................... 35 .
PREPARATION .......................................................... 4
. Trouble Diagnosis: "AIR BAG" Warning Lamp Does
Special Service Tools .............................................. 4
. Not Turn On ........................................................... 36
.
Commercial Service Tools ....................................... 5 . DIAGNOSTIC PROCEDURE 8 .......................... 36 . I
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) ...... 6 . DRIVER AIR BAG MODULE ................................... 37 .
SRS Configuration .................................................. 6
. Removal and Installation ....................................... 37 .
Front Seat Belt Pre-Tensioner with Load Limiter ..... 7 REMOVAL .......................................................... 37
. J
Front Side Air Bag ................................................... 7
. INSTALLATION .................................................. 38 .
Side Curtain Air Bag ................................................ 7
. SPIRAL CABLE ....................................................... 39.
TROUBLE DIAGNOSIS ............................................. 8 . Removal and Installation ....................................... 39 .
K
Trouble Diagnosis Introduction ................................ 8 . REMOVAL .......................................................... 39
.
DIAGNOSIS FUNCTION ...................................... 8 . INSTALLATION .................................................. 40 .
HOW TO PERFORM TROUBLE DIAGNOSIS FRONT PASSENGER AIR BAG MODULE ............. 41 .
FOR QUICK AND ACCURATE REPAIR .............. 8 . Removal and Installation ....................................... 41 . L
WORK FLOW ....................................................... 9
. REMOVAL .......................................................... 41
.
Component Parts Location .................................... 10 . INSTALLATION .................................................. 41 .
Schematic ..............................................................11
. FRONT SIDE AIR BAG MODULE ........................... 42 . M
Wiring Diagram -- SRS -- .................................... 12 . Removal ................................................................ 42
.
CONSULT-II Function ........................................... 16 . SIDE CURTAIN AIR BAG MODULE ....................... 43 .
DIAGNOSIS MODE FOR CONSULT-II .............. 16 . Removal and Installation ....................................... 43 .
HOW TO CHANGE SELF-DIAGNOSIS MODE REMOVAL .......................................................... 43
.
WITH CONSULT-II ............................................. 16 . INSTALLATION .................................................. 44 .
HOW TO ERASE SELF-DIAGNOSTIC CRASH ZONE SENSOR .......................................... 45 .
RESULTS ........................................................... 17
. Removal and Installation ....................................... 45 .
Self-Diagnosis Function (Without CONSULT-II) .... 17 . REMOVAL .......................................................... 45
.
HOW TO CHANGE SELF-DIAGNOSIS MODE... 17 INSTALLATION .................................................. 45 .
HOW TO ERASE SELF-DIAGNOSIS RESULTS 17 ... SIDE AIR BAG (SATELLITE) SENSOR .................. 46 .
SRS Operation Check ........................................... 18 . Removal and Installation ....................................... 46 .
DIAGNOSTIC PROCEDURE 1 .......................... 18 . REMOVAL .......................................................... 46
.
Trouble Diagnosis with CONSULT-II ..................... 20 . INSTALLATION .................................................. 46 .
DIAGNOSTIC PROCEDURE 2 .......................... 20 . FRONT SEAT BELT PRE-TENSIONER .................. 47 .
DIAGNOSTIC PROCEDURE 3 .......................... 24 . Removal and Installation ....................................... 47 .
DIAGNOSTIC PROCEDURE 4 (CONTINUED

Revision; 2004 April SRS-1 2003 G35 Coupe
DIAGNOSIS SENSOR UNIT .................................... 48 . SEAT BELT PRE-TENSIONER WHILE
Removal and Installation ....................................... 48 . MOUNTED IN VEHICLE .....................................55 .
REMOVAL .......................................................... 48 . DISPOSING OF AIR BAG MODULE AND SEAT
INSTALLATION ................................................... 48 . BELT PRE-TENSIONER .....................................55 .
ECU DISCRIMINATED NO. ................................ 48 . COLLISION DIAGNOSIS .........................................56 .
DISPOSAL OF AIR BAG MODULE AND SEAT BELT For Frontal Collision ...............................................56
.
PRE-TENSIONER .................................................... 49 . SRS INSPECTION (FOR FRONTAL COLLI-
Caution for Air Bag Module and Seat Belt Pre-ten- SION) ..................................................................56
.
sioner ..................................................................... 49
. For Side Collision ...................................................57
.
CHECKING DEPLOYMENT TOOL .................... 49 . WHEN THE SIDE AIR BAG IS ACTIVATED IN
DEPLOYMENT PROCEDURES FOR AIR BAG THE SIDE COLLISION: ......................................57 .
MODULE (OUTSIDE OF VEHICLE) .................. 50 . WHEN SRS IS NOT ACTIVATED IN THE SIDE
DEPLOYMENT PROCEDURES FOR SEAT COLLISION: ........................................................57.
BELT PRE-TENSIONER (OUTSIDE OF VEHI- SRS INSPECTION (FOR SIDE COLLISION) .....58 .
CLE) ................................................................... 54
.
DEPLOYMENT OF AIR BAG MODULE AND

Revision; 2004 April SRS-2 2003 G35 Coupe
PRECAUTIONS

PRECAUTIONS PFP:00001
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" AHS0006A

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
AHS0006B

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

Precautions for Battery Service AHS000DV

Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.
Wiring Diagrams and Trouble Diagnosis AHS0006C

When you read wiring diagrams, refer to the following:
q GI-15, "How to Read Wiring Diagrams" in GI section
q PG-4, "POWER SUPPLY ROUTING CIRCUIT" in PG section
When you perform trouble diagnosis, refer to the following:
q GI-11, "HOW TO FOLLOW TEST GROUPS IN 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 April SRS-3 2003 G35 Coupe
PREPARATION

PREPARATION PFP:00002

Special Service Tools AHS0009T

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.) Description
Tool name

Size: T50
HT61961000 and HT62152000 a: 3.5 (0.138) dia.
combined b: 8.5 - 8.6 (0.335 - 0.339) dia.
Tamper resistant TORX bit c: approx. 10 (0.39) sq.
Unit: mm (in)
S-NT361

KV99105300
(J41246) Anchoring air bag module
Air bag module bracket

S-NT354

KV99106400
Disposing of air bag module and front seat
(J38381)
belt pre-tensioner
Deployment tool

S-NT357

(J38381-65)
Connection between the deployment tool
Deployment tool adapter for front
and front passenger air bag module
passenger air bag module

SHIA0173E

(J38381-80)
q Deployment tool adapter for
driver air bag module (Yellow and q Connection between the deployment tool
orange connectors) and driver air bag module
q Deployment tool adapter for front q Connection between the deployment tool
seat belt pre-tensioner (Yellow and front seat belt pre-tensioner
connector) q Connection between the deployment tool
q Deployment tool adapter for side and side curtain air bag module
PHIA0184E
curtain air bag module (Yellow
connector)

Revision; 2004 April SRS-4 2003 G35 Coupe
PREPARATION

Tool number
(Kent-Moore No.) Description A
Tool name

B
KV99108300
(J38381-35) Connection between the deployment tool
Deployment tool adapter for front and front side air bag module
side air bag module C

ZZA1166D

(J-44615)
Removing and installing air bag lock E
Air bag lock master key set

LRS191 F

Commercial Service Tools AHS0009U

Tool name Description G

SRS
Tamper resistant TORX bit Size: T30

I
S-NT757

Revision; 2004 April SRS-5 2003 G35 Coupe
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

SUPPLEMENTAL RESTRAINT SYSTEM (SRS) PFP:28556

SRS Configuration AHS0009V

WHIA0042E

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-
lision but not in a side collision.
SRS configurations which are activated for some collision modes are as follows:
SRS configuration Frontal collision Left side collision Right side collision
Driver air bag module

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