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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) ............. 26 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- DIAGNOSTIC PROCEDURE 5 .......................... 26 .
SIONER" ................................................................. 3
. Trouble Diagnosis without CONSULT-II ................ 30 . G
Precautions for SRS "AIR BAG" and "SEAT BELT DIAGNOSTIC PROCEDURE 6 .......................... 30 .
PRE-TENSIONER" Service .................................... 3 . WARNING LAMP FLASH CODE CHART .......... 31 .
Wiring Diagrams and Trouble Diagnosis ................. 3 . Trouble Diagnosis: "AIR BAG" Warning Lamp Does
SRS
PREPARATION .......................................................... 4
. Not Turn Off ........................................................... 35
.
Special Service Tools .............................................. 4
. DIAGNOSTIC PROCEDURE 7 .......................... 35 .
Commercial Service Tools ....................................... 5 . Trouble Diagnosis: "AIR BAG" Warning Lamp Does
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) ...... 6 . Not Turn On ........................................................... 36
. I
SRS Configuration .................................................. 6
. DIAGNOSTIC PROCEDURE 8 .......................... 36 .
Front Seat Belt Pre-tensioner with Load Limiter ..... 7 DRIVER AIR BAG MODULE ................................... 37 .
Front Side Air Bag ................................................... 7
. Removal and Installation ....................................... 37 . J
Side Curtain Air Bag ................................................ 7
. REMOVAL .......................................................... 37
.
TROUBLE DIAGNOSIS ............................................. 8 . INSTALLATION .................................................. 38 .
Trouble Diagnosis Introduction ................................ 8 . SPIRAL CABLE ....................................................... 39.
K
DIAGNOSIS FUNCTION ...................................... 8 . Removal and Installation ....................................... 39 .
HOW TO PERFORM TROUBLE DIAGNOSIS REMOVAL .......................................................... 39
.
FOR QUICK AND ACCURATE REPAIR .............. 8 . INSTALLATION .................................................. 40 .
WORK FLOW ....................................................... 9
. FRONT PASSENGER AIR BAG MODULE ............. 41 . L
Component Parts Location .................................... 10 . Removal and Installation ....................................... 41 .
Schematic ..............................................................11
. REMOVAL .......................................................... 41
.
Wiring Diagram -- SRS -- .................................... 12 . INSTALLATION .................................................. 42 . M
CONSULT-II Function ........................................... 16 . FRONT SIDE 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 SIDE CURTAIN AIR BAG MODULE ....................... 45 .
RESULTS ........................................................... 17
. Removal and Installation ....................................... 45 .
Self-Diagnosis Function (Without CONSULT-II) .... 17 . REMOVAL .......................................................... 45
.
HOW TO CHANGE SELF-DIAGNOSIS MODE INSTALLATION .................................................. 46 .
WITHOUT CONSULT-II ..................................... 17 . CRASH ZONE SENSOR .......................................... 47 .
HOW TO ERASE SELF-DIAGNOSTIC Removal and Installation ....................................... 47 .
RESULTS ........................................................... 17
. REMOVAL .......................................................... 47
.
SRS Operation Check ........................................... 18 . INSTALLATION .................................................. 47 .
DIAGNOSTIC PROCEDURE 1 .......................... 18 . SIDE AIR BAG (SATELLITE) SENSOR .................. 48 .
Trouble Diagnosis with CONSULT-II ..................... 20 . Removal and Installation ....................................... 48 .
DIAGNOSTIC PROCEDURE 2 .......................... 20 . REMOVAL .......................................................... 48
.
DIAGNOSTIC PROCEDURE 3 .......................... 24 . INSTALLATION .................................................. 48 .
SRS-1
FRONT SEAT BELT PRE-TENSIONER .................. 49 . CLE) ....................................................................56
.
Removal and Installation ....................................... 49 . DEPLOYMENT OF AIR BAG MODULE AND
DIAGNOSIS SENSOR UNIT .................................... 50 . SEAT BELT PRE-TENSIONER WHILE
Removal and Installation ....................................... 50 . MOUNTED IN VEHICLE .....................................57 .
REMOVAL .......................................................... 50 . DISPOSING OF AIR BAG MODULE AND SEAT
INSTALLATION ................................................... 50 . BELT PRE-TENSIONER .....................................57 .
ECU DISCRIMINATED NO. ................................ 50 . COLLISION DIAGNOSIS .........................................58 .
DISPOSAL OF AIR BAG MODULE AND SEAT BELT For Frontal Collision ...............................................58.
PRE-TENSIONER .................................................... 51 . SRS INSPECTION (FOR FRONTAL COLLI-
Caution for Air Bag Module and Seat Belt Pre-ten- SION) ..................................................................58
.
sioner ..................................................................... 51
. For Side Collision ...................................................59
.
CHECKING DEPLOYMENT TOOL .................... 51 . WHEN THE SIDE AIR BAG IS ACTIVATED IN
DEPLOYMENT PROCEDURES FOR AIR BAG THE SIDE COLLISION: ......................................59 .
MODULE (OUTSIDE OF VEHICLE) .................. 52 . WHEN SRS IS NOT ACTIVATED IN THE SIDE
DEPLOYMENT PROCEDURES FOR SEAT COLLISION: ........................................................60 .
BELT PRE-TENSIONER (OUTSIDE OF VEHI- SRS INSPECTION (FOR SIDE COLLISION) .....60 .
SRS-2
PRECAUTIONS
PRECAUTIONS PFP:00001
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" AHS00019
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
AHS00009
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 AHS0000A
When you read wiring diagrams, refer to the following:
q GI-14, "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-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" in GI section
q GI-26, "How to Perform Efficient Diagnosis for an Electrical Incident" in GI section
Check for any service bulletins before servicing the vehicle.
SRS-3
PREPARATION
PREPARATION PFP:00002
Special Service Tools AHS0000B
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
KV99110200
(J38381-65) Connecting between the deployment tool
Deployment tool adapter for front and front passenger air bag module
passenger air bag module
SHIA0173E
KV99110500
(J38381-80)
q Deployment tool adapter for
q Connecting between the deployment tool
driver air bag module (Yellow and
and driver air bag module
orange connectors)
q Connecting between the deployment tool
q Deployment tool adapter for seat
and front seat belt pre-tensioner
belt pre-tensioner (Yellow
connector) q Connecting between the deployment tool
and side curtain air bag module
q Deployment tool adapter for side PHIA0118E
curtain air bag module (Yellow
connector)
KV99108300
(J38381-35) Connecting between the deployment tool
Deployment tool adapter for front and front side air bag module
side air bag module
ZZA1166D
SRS-4
PREPARATION
Commercial Service Tools AHS0001B
A
Tool name Application
B
Tamper resistant TORX bit Size: T30
C
S-NT757
D
E
F
G
SRS
I
J
K
L
M
SRS-5
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) PFP:28556
SRS Configuration AHS0000C
PHIA0698E
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
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