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SRS

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H RESTRAINTS

B
SECTION
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) C

E
CONTENTS
PRECAUTIONS ......................................................... 3
. FROM DIAGNOSTIC PROCEDURE 2) ............. 31 . F
Precautions for Supplemental Restraint System DIAGNOSTIC PROCEDURE 5 .......................... 31 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Trouble Diagnosis Without CONSULT-II ................ 37 .
SIONER" ................................................................. 3
. DIAGNOSTIC PROCEDURE 6 .......................... 37 . G
Precautions for SRS "AIR BAG" and "SEAT BELT WARNING LAMP FLASH CODE CHART .......... 38 .
PRE-TENSIONER" Service .................................... 3 . Trouble Diagnosis: "AIR BAG" Warning Lamp Does
Occupant Classification System Precaution ........... 3 . Not Turn Off ........................................................... 43
.
SRS
Trouble Diagnosis Precaution ................................. 3 . DIAGNOSTIC PROCEDURE 6 .......................... 43 .
PREPARATION .......................................................... 4
. Trouble Diagnosis: "AIR BAG" Warning Lamp Does
Special Service Tools .............................................. 4
. Not Turn On ........................................................... 44
.
Commercial Service Tools ....................................... 5 . DIAGNOSTIC PROCEDURE 7 .......................... 44 . I
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) ...... 6 . DRIVER AIR BAG MODULE ................................... 45 .
SRS Configuration .................................................. 6
. Removal and Installation ....................................... 45 .
Front Seat Belt Pre-tensioner with Load Limiter ..... 7 REMOVAL .......................................................... 45
. J
Front Side Air Bag ................................................... 7
. INSTALLATION .................................................. 46 .
Side Curtain Air Bag ................................................ 7
. SPIRAL CABLE ....................................................... 47.
Occupant Classification System .............................. 7 . Removal and Installation ....................................... 47 .
K
Direct-connect SRS Component Connectors .......... 8 . REMOVAL .......................................................... 47
.
TROUBLE DIAGNOSIS ............................................. 9 . INSTALLATION .................................................. 49 .
Trouble Diagnosis Introduction ................................ 9 . FRONT PASSENGER AIR BAG MODULE ............. 50 .
DIAGNOSIS FUNCTION ...................................... 9 . Removal and Installation ....................................... 50 . L
HOW TO PERFORM TROUBLE DIAGNOSES REMOVAL .......................................................... 50
.
FOR QUICK AND ACCURATE REPAIR .............. 9 . INSTALLATION .................................................. 50 .
WORK FLOW ..................................................... 10. WIRING HARNESS MODIFICATION ................. 51 . M
SRS Components Parts Location ...........................11 . FRONT SIDE AIR BAG MODULE ........................... 53 .
Schematic ............................................................. 12
. Removal and Installation ....................................... 53 .
Wiring Diagram-SRS- ............................................ 13 . REMOVAL .......................................................... 53
.
CONSULT-II Function (AIR BAG) .......................... 19 . INSTALLATION .................................................. 53 .
HOW TO CHANGE SELF-DIAGNOSIS MODE SIDE CURTAIN AIR BAG MODULE ....................... 54 .
WITH CONSULT-II ............................................. 19 . Removal and Installation ....................................... 54 .
HOW TO ERASE SELF-DIAGNOSIS RESULTS 20 ... REMOVAL .......................................................... 54
.
Self-Diagnosis Function (Without CONSULT-II) .... 20 . INSTALLATION .................................................. 54 .
HOW TO CHANGE SELF-DIAGNOSIS MODE... 20 CRASH ZONE SENSOR .......................................... 56 .
HOW TO ERASE SELF-DIAGNOSIS RESULTS 21 ... Removal and Installation ....................................... 56 .
SRS Operation Check ........................................... 21 . REMOVAL .......................................................... 56
.
DIAGNOSTIC PROCEDURE 1 .......................... 21 . INSTALLATION .................................................. 56 .
Trouble Diagnosis With CONSULT-II .................... 23 . SIDE AIR BAG (SATELLITE) SENSOR .................. 57 .
DIAGNOSTIC PROCEDURE 2 .......................... 23 . Removal and Installation ....................................... 57 .
DIAGNOSTIC PROCEDURE 3 .......................... 28 . REMOVAL .......................................................... 57
.
DIAGNOSTIC PROCEDURE 4 (CONTINUED INSTALLATION .................................................. 57 .

Revision: September 2004 SRS-1 2005 Quest
FRONT SEAT BELT PRE-TENSIONER .................. 58 . BELT PRE-TENSIONER (OUTSIDE OF VEHI-
Removal and Installation ....................................... 58 . CLE) ....................................................................66
.
DIAGNOSIS SENSOR UNIT .................................... 59 . DEPLOYMENT OF AIR BAG MODULES AND
Removal and Installation ....................................... 59 . SEAT BELT PRE-TENSIONERS WHILE
REMOVAL .......................................................... 59 . MOUNTED IN VEHICLE .....................................66 .
INSTALLATION ................................................... 59 . DISPOSING OF AIR BAG MODULE AND SEAT
ECU DISCRIMINATED NO. ................................ 59 . BELT PRE-TENSIONER .....................................67 .
OCCUPANT CLASSIFICATION SYSTEM CON- COLLISION DIAGNOSIS .........................................68 .
TROL UNIT ............................................................... 60
. For Frontal Collision ...............................................68.
Removal and Installation ....................................... 60 . SRS INSPECTION (FOR FRONTAL COLLI-
DISPOSAL OF AIR BAG MODULE AND SEAT BELT SION) ..................................................................68
.
PRE-TENSIONER .................................................... 61 . For Side Collision ...................................................69
.
Caution for Air Bag Module and Seat Belt Pre-ten- WHEN SRS IS ACTIVATED IN THE SIDE COL-
sioner ..................................................................... 61
. LISION ................................................................69
.
CHECKING DEPLOYMENT TOOL .................... 61 . WHEN SRS IS NOT ACTIVATED IN THE SIDE
DEPLOYMENT PROCEDURES FOR AIR BAG COLLISION .........................................................69 .
MODULE (OUTSIDE OF VEHICLE) .................. 62 . SRS INSPECTION (FOR SIDE COLLISION) .....69 .
DEPLOYMENT PROCEDURES FOR SEAT

Revision: September 2004 SRS-2 2005 Quest
PRECAUTIONS

PRECAUTIONS PFP:00001
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EHS000PM

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
EHS000OG

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 The diagnosis sensor unit must always be installed with the arrow mark "" pointing toward the front of
the vehicle for proper operation. Also check diagnosis sensor unit for cracks, deformities or rust before J
installation 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.
M
Occupant Classification System Precaution EHS000PW

q Replace occupant classification system control unit and passenger front seat cushion as an assembly.
Trouble Diagnosis Precaution EHS000OH

When you read wiring diagrams, refer to the following:
q GI-12, "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-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" in GI section
q GI-25, "How to Perform Efficient Diagnosis for an Electrical Incident" in GI section
Check for any service bulletins before servicing the vehicle.

Revision: September 2004 SRS-3 2005 Quest
PREPARATION

PREPARATION PFP:00002

Special Service Tools EHS000OI

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number Description
(Kent-Moore No.)
Tool name
KV99105300 Anchoring air bag module
(J-41246)
Air bag module bracket

S-NT354

-- Anchoring passenger air bag module
(J-39401-100)
Passenger air bag module bracket

LHIA0045E

KV99106400 Disposing of air bag modules and front seat
(J-38381) belt pre-tensioners
Deployment tool

S-NT357

-- Connecting between the deployment tool
(J-38381-80) and front driver air bag module, passenger
Deployment tool adapter for front air bag module, side curtain air bag module
driver air bag module, passenger air and front seat belt pre-tensioner
bag module, side curtain air bag
module and front seat belt pre-ten-
sioner
WHIA0089E

-- Connecting between the deployment tool
(J-38381-65) and front passenger air bag module
Deployment tool adapter for front
passenger air bag module (for ser-
vice kit level)

SHIA0173E

Revision: September 2004 SRS-4 2005 Quest
PREPARATION

Tool number Description
(Kent-Moore No.) A
Tool name
KV99109000 Connecting between the deployment tool
(J-42057) and front side air bag module B
Deployment tool adapter for front
side air bag module

ZZA1190D

-- Removing and installing air bag lock
D
(J-42057A)
Air bag lock master key set
Part of kit (J-42057)
E

LRS210
F
Commercial Service Tools EHS000QY

(Kent-Moore No.) G
Description
Tool name
(J-1859A) Removing steering wheel
Steering wheel puller
SRS

I
LHIA0043E

(J-42578) Removing steering wheel
Steering wheel puller legs J

LHIA0044E

Revision: September 2004 SRS-5 2005 Quest
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

SUPPLEMENTAL RESTRAINT SYSTEM (SRS) PFP:28556

SRS Configuration EHS000OK

WHIA0192E

The air bag deploys if the diagnosis sensor unit is activated while the ignition switch is in the ON or START
position.
The collision modes for which supplemental restraint systems are activated are different among the SRS sys-
tems. For example, the driver air bag module, front passenger air bag module and front seat belt pre-tension-
ers are activated in a frontal collision but not in a side collision.
SRS configurations 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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