NISSAN X-TRAIL 2003 Electronic Repair Manual

REAR SEAT
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3. Slidearmrestandlidtotherightandremovefromtheseatbackpin.
SIIA0334E

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REAR SEAT

SRS-1
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
H RESTRAINTS
CONTENTS
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SECTION
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B
SRS
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
PRECAUTIONS .......................................................... 3
Supplemental Restraint System (SRS) “AIR BAG”
and “SEAT BELT PRE-TENSIONER” ...................... 3
Precautions for SRS “AIR BAG” and “SEAT BELT
PRE-TENSIONER” Service ..................................... 3
Trouble Diagnosis Precaution .................................. 3
PREPARATION ........................................................... 4
Special Service Tool ................................................. 4
Commercial Service Tool ......................................... 4
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) ....... 5
SRS Configuration ................................................... 5
Front Seat Belt Pre-tensioner with Load Limiter ...... 5
Front Side Air Bag .................................................... 5
TROUBLE DIAGNOSIS .............................................. 7
Trouble Diagnoses-Introduction ............................... 7
DIAGNOSIS FUNCTION ....................................... 7
HOW TO PERFORM TROUBLE DIAGNOSES
FOR QUICK AND ACCURATE REPAIR ............... 7
WORK FLOW ........................................................ 7
SRS Components Parts Location ............................. 9
Wiring Diagram — SRS — /LHD models ............... 10
Wiring Diagram-SRS-/RHD models ....................... 12
CONSULT-II FUNCTION ........................................ 14
DIAGNOSIS MODE FOR CONSULT-II ............... 14
HOW TO CHANGE SELF-DIAGNOSIS MODE
WITH CONSULT-II .............................................. 14
HOW TO ERASE SELF-DIAGNOSIS RESULTS... 14
SELF-DIAGNOSIS FUNCTION (WITHOUT CON-
SULT-II) .................................................................. 15
HOW TO CHANGE SELF-DIAGNOSIS MODE... 15
HOW TO ERASE SELF-DIAGNOSIS RESULTS... 15
SRS Operation Check ............................................ 15
DIAGNOSTIC PROCEDURE 1 ........................... 15
Trouble Diagnoses with CONSULT–II .................... 17
DIAGNOSTIC PROCEDURE 2 ........................... 17
DIAGNOSTIC PROCEDURE 3 ........................... 20
DIAGNOSTIC PROCEDURE 4 ........................... 20
Trouble Diagnoses Without CONSULT-II ............... 22
DIAGNOSTIC PROCEDURE 5 ........................... 22
WARNING LAMP FLASH CODE CHART ........... 23Trouble Diagnoses: “AIR BAG” Warning Lamp Does
Not Turn Off ............................................................ 25
DIAGNOSTIC PROCEDURE 6 ........................... 25
Trouble Diagnoses: “AIR BAG” Warning Lamp Does
Not Turn On ............................................................ 26
DIAGNOSTIC PROCEDURE 7 ........................... 26
DRIVER AIR BAG MODULE .................................... 27
Removal and Installation/With 4-Spoke Steering
Wheel ..................................................................... 27
REMOVAL ........................................................... 27
INSTALLATION ................................................... 28
Removal and Installation/With 3-Spoke Steering
Wheel ..................................................................... 29
REMOVAL ........................................................... 29
INSTALLATION ................................................... 30
SPIRAL CABLE ........................................................ 31
Removal and Installation ........................................ 31
REMOVAL ........................................................... 31
INSTALLATION ................................................... 32
Components Inspection .......................................... 32
FRONT PASSENGER AIR BAG MODULE .............. 33
Removal and Installation ........................................ 33
REMOVAL ........................................................... 33
INSTALLATION ................................................... 33
FRONT SIDE AIR BAG MODULE ............................ 35
Removal and Installation ........................................ 35
REMOVAL ........................................................... 35
INSTALLATION ................................................... 36
SIDE AIR BAG (SATELLITE) SENSOR ................... 37
Removal and Installation ........................................ 37
REMOVAL ........................................................... 37
INSTALLATION ................................................... 37
FRONT SEAT BELT PRE-TENSIONER ................... 38
Removal and Installation ........................................ 38
DIAGNOSIS SENSOR UNIT ..................................... 39
Removal and Installation ........................................ 39
REMOVAL ........................................................... 39
INSTALLATION ................................................... 39
ECU DISCRIMINATED NO. ................................ 39
DISPOSAL OF AIR BAG MODULE AND SEAT BELT

SRS-2
PRE-TENSIONER ..................................................... 40
Caution for Air Bag Module and Seat Belt Pre-ten-
sioner ...................................................................... 40
CHECKING DEPLOYMENT TOOL ..................... 40
DEPLOYMENT PROCEDURES FOR AIR BAG
MODULE (OUTSIDE OF VEHICLE) ................... 41
DEPLOYMENT PROCEDURES FOR SEAT
BELT PRE-TENSIONER (OUTSIDE OF VEHI-
CLE) .................................................................... 44
DEPLOYMENT OF AIR BAG MODULE AND
SEAT BELT PRE-TENSIONER WHILE
MOUNTED IN VEHICLE ..................................... 44
DISPOSING OF AIR BAG MODULE AND SEAT
BELT PRE-TENSIONER ..................................... 45COLLISION DIAGNOSIS ..........................................46
For Frontal Collision ................................................46
WHEN SRS (EXCEPT THE FRONT SIDE AIR
BAG ) IS ACTIVED IN A COLLISION : ................46
WHEN SRS IS NOT ACTIVATED IN A COLLI-
SION: ...................................................................46
SRS INSPECTION (FOR FRONTAL COLLI-
SION) ...................................................................46
For Side Collision ....................................................47
WHEN THE SIDE AIR BAG IS ACTIVATED IN
THE SIDE COLLISION: .......................................47
WHEN SRS IS NOT ACTIVATED IN THE SIDE
COLLISION: .........................................................47
SRS INSPCTION (FOR SIDE COLLISION) ........48

PRECAUTIONS
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PRECAUTIONSPFP:00001
Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER”
EHS000BG
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER” used along 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.
WA RN ING:
lTo 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 should be per-
formed by an authorized NISSAN/INFINITI dealer.
lImproper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system.
lDo 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 harness connector.
Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” ServiceEHS000BH
lDo not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
lBefore servicing the SRS, turn ignition switch “OFF”, disconnect battery ground cable and wait at least 3
minutes.
For approximately 3 minutes after the cables is removed, it is still possible for the air bag and seat belt
pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes
have passed.
lDiagnosis sensor unit must always be installed with their arrow marks “Ü” pointing towards the front of the
vehicle for proper operation. Also check diagnosis sensor unit for cracks, deformities or rust before instal-
lation and replace as required.
lThe 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.
lHandle air bag module carefully. Always place driver and front passenger air bag modules with the pad
side facing upward and place front side air bag module standing with stud bolt side setting bottom.
lConduct self-diagnosis to check entire SRS for proper function after replacing any components.
lAfter air bag inflates, the front instrument panel assembly should be replaced if damaged.
Trouble Diagnosis PrecautionEHS000BI
Whenyoureadwiringdiagrams,refertothefollowings:
l“HOW TO READ WIRING DIAGRAMS” in GI section
lPG-2, "POWER SUPPLY ROUTING"in PG section
When you perform trouble diagnosis, refer to the followings:
l“HOW TO FOLLOW TEST GROUP IN TROUBLE DIAGNOSIS” in GI section
l“HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENT” in GI section
Check for any service bulletins before servicing the vehicle.

SRS-4
PREPARATION
PREPARATION
PFP:00002
Special Service ToolEHS000CF
Commercial Service ToolEHS000CG
Tool number
Tool nameApplication
KV99105300
Air bag module bracketAnchoring air bag module
KV99106400
Deployment toolDisposing of air bag module and front seat
belt pre-tensioner
KV99109700
lDeployment tool adapter for front
seat belt pre-tensioner
lDeployment tool adapter for
driver air bag module
lConnection between the deployment
tool and front seat belt pre-tensioner
lConnection between the deployment
tool and driver air bag module
KV99109000
Deployment tool adapters for side
curtain air bagConnection between the deployment tool
and side curtain air bag module
KV99108300
Deployment tool adapters for front
passenger air bagConnection between the deployment tool
and front passenger air bag module
S-NT354
S-NT357
SHIA0038J
ZZA1190D
ZZA1166D
Tool name Application
Tamper resistant torx socket Size:T30
S-NT757

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
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SRS
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)PFP:28556
SRS ConfigurationEHS000CH
The air bag deploys if the diagnosis sensor unit activates 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 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;
Front Seat Belt Pre-tensioner with Load LimiterEHS000CI
The seat belt pre-tensioner system with load limiter is installed to
both the driver's seat and the front passenger's seat. It operates
simultaneously with the SRS air bag system in the event of a frontal
collision with an impact exceeding a specified level.
When the frontal collision with an impact exceeding a specified level
occurs, seat belt slack resulting from clothing or other factors is
immediately taken up by the pre-tensioner. Vehicle passengers are
securely restrained.
When passengers in a vehicle are thrown forward in a collision and
the restraining force of the seat belt exceeds a specified level, the
load limiter permits the specified extension of the seat belt by the
twisting of the ELR shaft, and a relaxation of the chest-area seat belt
web tension while maintaining force.
Front Side Air BagEHS000CJ
Front side air bag is built-in type.
PHIA0037E
SRS configuration Frontal collision Left side collision Right side collision
Driver air bag module´——
Front passenger air bag module´——
Front LH seat belt pre-tensioner´——
Front RH seat belt pre-tensioner´——
Front LH side air bag module —´´
Front RH side air bag module — —´
SRS444

SRS-6
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
The front seat backs with built-in type side air bag have the labels
showninfigureatright.
PHIA0039E

TROUBLE DIAGNOSIS
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TROUBLE DIAGNOSISPFP:00004
Trouble Diagnoses-IntroductionEHS0 00 CL
CAUTION:
lDo not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harness can be identified by yellow harness connector.
lDo not attempt to repair, splice or modify the SRS wiring harness. If the harness is damaged,
replace it with a new one.
lKeep ground portion clean.
DIAGNOSIS FUNCTION
The SRS self-diagnosis results can be read by using “AIR BAG” warning lamp and/or CONSULT-II.
The User mode is exclusively prepared for the customer (driver). This mode warns the driver of a system mal-
function through the operation of the “AIR BAG” warning lamp.
The Diagnosis mode allows the technician to locate and inspect the malfunctioning part.
The mode applications for the “AIR BAG” warning lamp and CONSULT-II are as follows:
NOTE:
Seat belt pre-tensioner malfunction is indicated by “AIR BAG” warning lamp.
HOW TO PERFORM TROUBLE DIAGNOSES FOR QUICK AND ACCURATE REPAIR
A good understanding of the malfunction conditions can make troubleshooting faster and more accurate.
In general, each customer feels differently about a malfunction. It is important to fully understand the symp-
toms or conditions for a customer complaint.
Information from customer
WHAT..... Vehicle model
WHEN..... Date, Frequencies
WHERE..... Road conditions
HOW..... Operating conditions, Symptoms
Preliminary check
Check that the following parts are in good order.
lBattery [Refer toSC-3, "BATTERY".]
lFuse [Refer toPG-2, "POWER SUPPLY ROUTING".]
lSystem component-to-harness connections
WORK FLOW
NOTE:
Seat belt pre-tensioner malfunction is indicated by “AIR BAG” warning lamp.
User mode Diagnosis mode Display type
“AIR BAG” warning lamp X X ON-OFF operation
CONSULT-II — X Monitoring

SRS-8
TROUBLE DIAGNOSIS
*1:SRS-7*2:SRS-15*3:SRS-20
*4:SRS-22
SHIA0175E