2004 NISSAN TERRANO Service Repair Manual

Rear Seat Belt
YRS133
SEAT BELTS
RS-6
http://vnx.su/

YRS134
SEAT BELTS
Rear Seat Belt (Cont'd)RS-7
http://vnx.su/

Precautions
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) ªAIR BAGº AND ªSEAT BELT
PRE-TENSIONERº
The Supplemental Restraint System such as ªAIR BAGº and ªSEAT BELT PRE-TENSIONERº used along with
a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of
collision. The SRS composition which is available to NISSAN MODEL R20 is as follows (The composition
varies according to the destination and optional equipment.):
IFor a frontal collision
The Supplemental Restraint System consists of driver air bag module (located in the center of the steer-
ing wheel), front passenger air bag module (located on the instrument panel on passenger side), front seat
belt pre-tensioners, a diagnosis sensor unit, warning lamp, wiring harness and spiral cable.
I For a side collision
The Supplemental Restraint System consists of front side air bag module (located in the outer side of front
seat), side air bag (satellite) sensor, diagnosis sensor unit (one of components of air bags for a frontal
collision), wiring harness, warning lamp (one of components of air bags for a frontal collision).
WARNING:
I 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 should be per-
formed by an authorized NISSAN dealer.
I Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system.
I Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. Spiral cable and wiring harnesses covered with yellow insulation tape either just
before the harness connectors or for the complete harness are related to the SRS.
PRECAUTIONS FOR SRS ªAIR BAGº AND ªSEAT BELT PRE-TENSIONERº SERVICE
IDo not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
I Before servicing the SRS, turn ignition switch ªOFFº, disconnect both battery cables and wait at least 3
minutes.
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.
I Diagnosis sensor unit must always be installed with their arrow marks ª +º pointing towards the front of
the vehicle for proper operation. Also check diagnosis sensor unit for cracks, deformities or rust before
installation and replace as required.
I 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.
I 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 (built-in type) standing with stud bolt side setting
bottom.
I Conduct self-diagnosis to check entire SRS for proper function after replacing any components.
I After air bag inflates, the front instrument panel assembly should be replaced if damaged.
WIRING DIAGRAMS AND TROUBLE DIAGNOSIS
When you read wiring diagrams, refer to the following:
IGI-10, ªHOW TO READ WIRING DIAGRAMSº
I EL-8, ªPOWER SUPPLY ROUTINGº for power distribution circuit
When you perform trouble diagnosis, refer to the following:
I GI-25, ªHOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSISº
I GI-22, ªHOW TO PERFORM EFFICIENT DIAGNOSES FOR AN ELECTRICAL INCIDENTº
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
RS-8
http://vnx.su/

Preparation
SPECIAL SERVICE TOOLS
Tool number
Tool nameDescription
KV99106400
Deployment tool
NT357
Disposing of air bag module
KV99105300
Air bag module bracket
NT354
Anchoring air bag module
HT61961000 and
HT62152000 combined
*Special torx bit
NT361
Use for special bolts [TAMPER RESISTANT
TORX (Size T50)]
a: 3.5 (0.138) dia.
b: 8.5 - 8.6 (0.335 - 0.339) dia.
c: approx. 10 (0.39) sq.
Unit: mm (in)
KV99108300
Deployment tool
adapter for front pas-
senger air bag module
YRS101
KV99108200
Deployment tool
adapter for seat belt
pre-tensioner
YRS128
KV99109800
Deployment tool
adapter for driver air
bag module
YRS129
KV99109000
Deployment tool
adapter for front side air
bag
NT797
*: Special tool or commercial equivalent
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
RS-9
http://vnx.su/

COMMERCIAL SERVICE TOOL
Tool nameDescription
Tamper resistant torx
socket
NT757
Size: T30
SRS Configuration
The air bag deploys if the diagnosis sensor unit activates while the ignition switch is in the ªONº or ªSTARTº
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
collision but not in a side collision.
SRS configurations which are activated for some collision modes are as follows:
SRS configuration Frontal collisionLeft side collision Right side collision
Driver air bag module qÐÐ
Front passenger air bag module qÐÐ
Front LH seat belt pre-tensioner qÐÐ
Front RH seat belt pre-tensioner qÐÐ
Front LH side air bag module Ð qÐ
Front RH side air bag module Ð Ð q
SRS585-D
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Preparation (Cont'd)
RS-10
http://vnx.su/

Seat Belt Pre-tensioner with Load Limiter
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 fron-
tal 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.
Built-in Type Side Air Bag
Front side air bag is built-in type.
The front seat backs with built-in type front side air bag have the
labels shown in figure at left.
SRS444
NRS101
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
RS-11
http://vnx.su/

SRS Component Parts Location
Maintenance Items
CAUTION:
Do not use electrical test equipment to check SRS circuit.
1. Check operation of ªAIR BAGº warning lamp.After turning ignition key to ªONº position, ªAIR BAGº warning
lamp illuminates. The ªAIR BAGº warning lamp will go off after
about 7 seconds if no malfunction is detected. If any of the fol-
lowing ªAIR BAGº warning lamp conditions occur, immediately
check the air bag system. Refer to RS-38 for details.
I The ªAIR BAGº warning lamp does not illuminate when the
ignition switch is turned ªONº.
I The ªAIR BAGº warning lamp does not go off about 7 seconds
after the ignition switch is turned ªONº.
I The ªAIR BAGº warning lamp blinks after about 7 seconds after
the ignition switch is turned ªONº.
2. Visually check SRS components.
1) Diagnosis sensor unit
I Check diagnosis sensor unit and bracket for dents, cracks and
deformities.
I Check connectors for damage, and terminals for deformities.
2) Air bag module and steering wheel
I Remove air bag module from steering wheel, instrument panel
or seatback. Check harness cover and connectors for damage,
terminals for deformities, and harness for binding.
NRS102
SRS797-A
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
RS-12
http://vnx.su/

IInstall driver air bag module to steering wheel to check fit or
alignment with the wheel.
I Check steering wheel for excessive free play.
I Install front passenger air bag module to instrument panel to
check fit or alignment with the instrument panel.
I Install front side air bag module to seatback to check fit and
alignment with the seat.
3) Spiral cable
I Check spiral cable for dents, cracks, or deformities.
I Check connectors and protective tape for damage.
I Check steering wheel for noise, binding or heavy operation.
4) Main harness, body harness, side air bag module sub-harness
I Check connectors for poor connections, damage, and terminals
for deformities.
I Check harnesses for binding, chafing or cut.
5) Front seat belt pre-tensioner
I Check harness cover and connectors for damage, terminals for
deformities, and harness for binding.
I Check belts for damage and anchors for loose mounting.
I Check retractor for smooth operation.
I Perform self-diagnosis for seat belt pre-tensioner using ªAIR
BAGº warning lamp or CONSULT-II.
Refer to ªSRS Operation Checkº for details. (RS-38)
6) Side air bag (satellite) sensor
I Check side air bag (satellite) sensor (including bracket portion)
for dents, cracks or deformities.
I Check connectors for damage, and terminals for deformities.
CAUTION:
Replace previously used special bolts and ground bolt with
new ones.
Diagnosis Sensor Unit
REMOVAL AND INSTALLATION
CAUTION:
I Before servicing SRS, turn the ignition switch off, discon-
nect both battery cables and wait at least 3 minutes.
I The special bolts are coated with bonding agent while the
other bolt is for ground. Do not use old bolts after removal;
replace with new ones.
I Check diagnosis sensor unit for proper installation.
I Check diagnosis sensor unit to ensure it is free of
deformities, dents, cracks or rust. If they show any visible
signs of damage, replace them with new ones.
I Check diagnosis sensor unit brackets to ensure they are
free of deformities or rust.
I Replace diagnosis sensor unit if it has been dropped or
sustained an impact.
I After replacement of diagnosis sensor unit, perform self-
diagnosis for SRS. Refer to ªSRS Operation Checkº for
details. (RS-38)
1. Disconnect driver, front passenger and front side air bag mod- ule connectors. Also, disconnect front seat belt pre-tensioner
connector.
2. Remove console box. Refer to BT-22, ªINSTRUMENT PANEL ASSEMBLYº.
3. Disconnect diagnosis sensor unit connector.
4. Remove ground bolt and also remove special bolts using the TAMPER RESISTANT TORX (Size T50), from diagnosis sen-
sor unit.
Then remove the diagnosis sensor unit.
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Maintenance Items (Cont'd)
RS-13
http://vnx.su/