Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti M45 Y34 2003-2004 Approved M45-Y34-2003 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 5 .......................... 27 . F
Precautions for Supplemental Restraint System Trouble diagnoses without CONSULT-II ................ 31 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- DIAGNOSTIC PROCEDURE 6 .......................... 31 .
SIONER" ................................................................. 3
. WARNING LAMP FLASH CODE CHART .......... 32 . G
Precautions for SRS "AIR BAG" and "SEAT BELT Trouble Diagnoses: "AIR BAG" Warning Lamp Does
PRE-TENSIONER" Service .................................... 3 . Not Turn Off ........................................................... 36
.
Trouble Diagnosis Precaution ................................. 3 . DIAGNOSTIC PROCEDURE 7 .......................... 36 .
SRS
PREPARATION .......................................................... 4
. Trouble Diagnoses: "AIR BAG" Warning Lamp Does
Special Service Tools .............................................. 4
. Not Turn On ........................................................... 37
.
Commercial Service Tools ....................................... 5 . DIAGNOSTIC PROCEDURE 8 .......................... 37 .
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) ...... 6 . DRIVER AIR BAG MODULE ................................... 38 . I
SRS Configuration .................................................. 6
. Removal and Installation ....................................... 38 .
Front Seat Belt Pre-tensioner with Load Limiter ..... 7 REMOVAL .......................................................... 38
.
Front Side Air Bag ................................................... 7
. INSTALLATION .................................................. 39 . J
Side Curtain Air Bag ................................................ 7
. SPIRAL CABLE ....................................................... 40.
TROUBLE DIAGNOSIS ............................................. 8 . Removal and Installation ....................................... 40 .
Trouble Diagnoses Introduction .............................. 8 . REMOVAL .......................................................... 40
.
K
DIAGNOSIS FUNCTION ...................................... 8 . INSTALLATION .................................................. 41 .
HOW TO PERFORM TROUBLE DIAGNOSES FRONT PASSENGER AIR BAG MODULE ............. 42 .
FOR QUICK AND ACCURATE REPAIR .............. 8 . Removal and Installation ....................................... 42 .
WORK FLOW ....................................................... 9
. REMOVAL .......................................................... 42
. L
SRS Component Parts Location ........................... 10 . INSTALLATION .................................................. 42 .
Schematic ..............................................................11
. FRONT SIDE AIR BAG MODULE ........................... 43 .
Wiring Diagram-SRS- ............................................ 12 . Removal and Installation ....................................... 43 . M
CONSULT-II Function ........................................... 17 . REMOVAL .......................................................... 43
.
DIAGNOSIS MODE FOR CONSULT-II .............. 17 . INSTALLATION .................................................. 44 .
HOW TO CHANGE SELF-DIAGNOSIS MODE SIDE CURTAIN AIR BAG MODULE ....................... 45 .
WITH CONSULT-II ............................................. 17 . Removal and Installation ....................................... 45 .
HOW TO ERASE SELF-DIAGNOSIS RESULTS 18 ... REMOVAL .......................................................... 45
.
Self-diagnosis Function (Without CONSULT-II) .... 19 . INSTALLATION .................................................. 46 .
HOW TO CHANGE SELF-DIAGNOSIS MODE... 19 CRASH ZONE SENSOR .......................................... 47 .
HOW TO ERASE SELF-DIAGNOSTIC Removal and Installation ....................................... 47 .
RESULTS ........................................................... 19
. REMOVAL .......................................................... 47
.
SRS Operation Check ........................................... 19 . INSTALLATION .................................................. 47 .
DIAGNOSTIC PROCEDURE 1 .......................... 19 . SIDE AIR BAG (SATELLITE) SENSOR .................. 48 .
Trouble Diagnoses with CONSULT-II .................... 21 . Removal and Installation ....................................... 48 .
DIAGNOSTIC PROCEDURE 2 .......................... 21 . REMOVAL .......................................................... 48
.
DIAGNOSTIC PROCEDURE 3 .......................... 25 . INSTALLATION .................................................. 48 .
DIAGNOSTIC PROCEDURE 4 (CONTINUED FRONT SEAT BELT PRE-TENSIONER .................. 49 .
FROM DIAGNOSTIC PROCEDURE 2) ............. 27 . Removal and Installation ....................................... 49 .
Revision; 2004 April SRS-1 2003 M45
DIAGNOSIS SENSOR UNIT .................................... 50 . SEAT BELT PRE-TENSIONER WHILE
Removal and Installation ....................................... 50 . MOUNTED IN VEHICLE .....................................56 .
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 .
CLE) ................................................................... 56
.
DEPLOYMENT OF AIR BAG MODULE AND
Revision; 2004 April SRS-2 2003 M45
PRECAUTIONS
PRECAUTIONS PFP:00001
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" AHS0008A
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
AHS0008B
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 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
Trouble Diagnosis Precaution AHS0008C
When you read wiring diagrams, refer to the following:
q GI-14, "How to Read Wiring Diagrams" in GI section
q PG-2, "POWER SUPPLY ROUTING" 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.
Revision; 2004 April SRS-3 2003 M45
PREPARATION
PREPARATION PFP:00002
Special Service Tools AHS0008D
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
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)
KV99108300
(J38381-35) Connection between the deployment tool
Deployment tool adapter for front and front side air bag module
side air bag module
ZZA1166D
(J-44615)
Removing and installing air bag lock
Air bag lock master key set
LRS191
Revision; 2004 April SRS-4 2003 M45
PREPARATION
Commercial Service Tools AHS0008E
A
Tool name Description
B
Tamper resistant TORX socket Size: T30
C
S-NT757
D
E
F
G
SRS
I
J
K
L
M
Revision; 2004 April SRS-5 2003 M45
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) PFP:28556
SRS Configuration AHS0008F
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
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