2003 NISSAN X-TRAIL diagram

SB-1
SEAT BELTS
H RESTRAINTS
CONTENTS
C
D
E
F
G
I
J
K
L
M
SECTION
A
B
SB

SEAT BELTS
PRECAUTIONS .......................................................... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 2
Precaution for Seat Belt Service .............................. 2
AFTER A COLLISION ........................................... 2
SEAT BELTS .............................................................. 3
Removal and Installation of Front Seat Belt ............. 3
REMOVAL ............................................................. 3
INSTALLATION ..................................................... 3
Removal and Installation of Rear Seat Belt ............. 4
REMOVAL/WITH 2-POINT TYPE REAR CEN-
TER SEAT BELT ................................................... 4
INSTALLATION/WITH 2-POINT TYPE REAR
CENTER SEAT BELT ........................................... 4
REMOVAL/WITH 3-POINT TYPE REAR CEN-
TER SEAT BELT ................................................... 4
INSTALLATION /WITH 3-POINT TYPE REAR
CENTER SEAT BELT ........................................... 5
SEAT BELT WARNING SYSTEM ............................... 6
Component Parts and Harness Connector Location ..... 6System Description ................................................... 6
SEAT BELT OPERATION ...................................... 6
SEAT BELT WARNING CHIME AND SEAT BELT
WARNING LAMP .................................................. 7
Time Chart for Seat Belt Warning Lamp and Chime ..... 7
Schematic ................................................................. 8
Wiring Diagram —S/WARN—/For LHD models ....... 9
Wiring Diagram —S/WARN—/For RHD models ..... 12
Terminal and Reference Value for Time Control Unit ... 15
Work Flow ............................................................... 16
Trouble Diagnosis Chart by Symptom .................... 16
Time Control Unit Power Supply and Ground Circuit
Check ..................................................................... 16
Seat Belt Warning Lamp Power Supply Check ...... 17
Seat Belt Warning Lamp Check (Driver side) ......... 17
Seat belt Warning Lamp Check (Passenger Side) ... 19
Seat Belt Buckle Switch Check .............................. 20
Seat Belt Buckle Switch and Seat Pressure Switch
Check ..................................................................... 22
Vehicle Speed Signal Inspection ............................ 24

SEAT BELT WARNING SYSTEM
SB-9
C
D
E
F
G
I
J
K
L
MA
B
SB

Wiring Diagram —S/WARN—/For LHD modelsEHS000GR
THWB0002E

SB-12
SEAT BELT WARNING SYSTEM

Wiring Diagram —S/WARN—/For RHD modelsEHS000H1
THWB0005E

SRS-1
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
H RESTRAINTS
CONTENTS
C
D
E
F
G
I
J
K
L
M
SECTION
A
B
SRS

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions for SRS “AIR BAG” and “SEAT BELT
PRE-TENSIONER” Service ..................................... 3
Wiring Diagrams and Trouble Diagnosis .................. 3
PREPARATION ........................................................... 4
Special Service Tools ............................................... 4
Commercial Service Tools ........................................ 5
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) ....... 6
SRS Configuration ................................................... 6
Front Seat Belt Pre-tensioner with Load Limiter ...... 6
Front Side Air Bag .................................................... 7
TROUBLE DIAGNOSIS .............................................. 8
Trouble Diagnosis Introduction ................................. 8
DIAGNOSIS FUNCTION ....................................... 8
HOW TO PERFORM TROUBLE DIAGNOSES
FOR QUICK AND ACCURATE REPAIR ............... 8
WORK FLOW ........................................................ 9
Component Parts Location ..................................... 10
Wiring Diagram — SRS — /LHD models ................ 11
Wiring Diagram — SRS — /RHD models .............. 13
CONSULT-II Function ............................................ 15
DIAGNOSIS MODE FOR CONSULT-II ............... 15
HOW TO CHANGE SELF-DIAGNOSIS MODE
WITH CONSULT-II .............................................. 15
HOW TO ERASE SELF-DIAGNOSIS RESULTS ... 16
Self-Diagnosis Function (Without CONSULT-II) ..... 16
HOW TO CHANGE SELF-DIAGNOSIS MODE
WITHOUT CONSULT-II ...................................... 16
HOW TO ERASE SELF-DIAGNOSIS RESULTS ... 16
SRS Operation Check ............................................ 17
DIAGNOSTIC PROCEDURE 1 ........................... 17
Trouble Diagnosis with CONSULT–II ..................... 19
DIAGNOSTIC PROCEDURE 2 ........................... 19
DIAGNOSTIC PROCEDURE 3 ........................... 21
Diagnostic Code Chart ........................................... 22
Trouble Diagnosis without CONSULT-II ................. 24
DIAGNOSTIC PROCEDURE 4 ........................... 24WARNING LAMP FLASH CODE CHART ........... 25
Trouble Diagnosis: “AIR BAG” Warning Lamp Does
Not Turn Off ............................................................ 28
DIAGNOSTIC PROCEDURE 5 ........................... 28
Trouble Diagnosis: “AIR BAG” Warning Lamp Does
Not Turn On ............................................................ 29
DIAGNOSTIC PROCEDURE 6 ........................... 29
DRIVER AIR BAG MODULE .................................... 30
Removal and Installation ........................................ 30
REMOVAL ........................................................... 30
INSTALLATION ................................................... 31
SPIRAL CABLE ........................................................ 33
Removal and Installation ........................................ 33
REMOVAL ........................................................... 33
INSTALLATION ................................................... 34
FRONT PASSENGER AIR BAG MODULE .............. 35
Removal and Installation ........................................ 35
REMOVAL ........................................................... 35
INSTALLATION ................................................... 36
FRONT SIDE AIR BAG MODULE ............................ 37
Removal and Installation ........................................ 37
REMOVAL ........................................................... 37
INSTALLATION ................................................... 38
SIDE AIR BAG (SATELLITE) SENSOR ................... 39
Removal and Installation ........................................ 39
REMOVAL ........................................................... 39
INSTALLATION ................................................... 39
FRONT SEAT BELT PRE-TENSIONER ................... 40
Removal and Installation ........................................ 40
DIAGNOSIS SENSOR UNIT ..................................... 41
Removal and Installation ........................................ 41
REMOVAL ........................................................... 41
INSTALLATION ................................................... 41
ECU DISCRIMINATED NO. ................................ 41
DISPOSAL OF AIR BAG MODULE AND SEAT BELT
PRE-TENSIONER ..................................................... 42
Caution for Air Bag Module and Seat Belt Pre-ten-
sioner ...................................................................... 42
CHECKING DEPLOYMENT TOOL ..................... 42
DEPLOYMENT PROCEDURES FOR AIR BAG

PRECAUTIONS
SRS-3
C
D
E
F
G
I
J
K
L
MA
B
SRS

PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EHS001B0
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. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
WARNING:

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.

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.

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.
Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” ServiceEHS000BH

Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.

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
pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes
have passed.

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-
lation and replace as required.

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.

Handle 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.

Conduct self-diagnosis to check entire SRS for proper function after replacing any components.

After air bag inflates, the front instrument panel assembly should be replaced if damaged.
Wiring Diagrams and Trouble DiagnosisEHS001NG
When you read wiring diagrams, refer to the following:

GI-14, "How to Read Wiring Diagrams" in GI section

PG-2, "POWER SUPPLY ROUTING" in PG section
When you perform trouble diagnosis, refer to the following:

GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" in GI section

GI-23, "How to Perform Efficient Diagnosis for an Electrical Incident" in GI section
Check for any service bulletins before servicing the vehicle.

SRS-8
TROUBLE DIAGNOSIS

TROUBLE DIAGNOSISPFP:00004
Trouble Diagnosis IntroductionEHS000CL
CAUTION:

Do 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 and/or orange harnesses or har-
ness connector.

Do not attempt to repair, splice or modify the SRS wiring harness. If the harness is damaged,
replace it with a new one.

Keep 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.

Battery (Refer to SC-3, "How to Handle Battery" .)

Fuse (Refer to SRS-11, "Wiring Diagram — SRS — /LHD models" or SRS-13, "Wiring Diagram — SRS
— /RHD models" .)

System component-to-harness connections
User mode Diagnosis mode Display type
“AIR BAG” warning lamp X X ON-OFF operation
CONSULT-II — X Monitoring

TROUBLE DIAGNOSIS
SRS-11
C
D
E
F
G
I
J
K
L
MA
B
SRS

Wiring Diagram — SRS — /LHD modelsEHS000CO
THWA0031E

TROUBLE DIAGNOSIS
SRS-13
C
D
E
F
G
I
J
K
L
MA
B
SRS

Wiring Diagram — SRS — /RHD modelsEHS000D6
THWA0033E