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SEAT BELTS

H RESTRAINTS

SECTION SB
SEAT BELTS
B

E
CONTENTS
PRECAUTIONS ......................................................... 2
. REMOVAL OF SEAT BELT BUCKLE ................... 5 . F
Precautions for Supplemental Restraint System INSTALLATION OF SEAT BELT BUCKLE ........... 5 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Removal and Installation of Seat Belt (Roadster) ..... 6
SIONER" ................................................................. 2
. REMOVAL OF SEAT BELT RETRACTOR ........... 6 . G
Precaution for Seat Belt Service ............................. 2 . INSTALLATION OF SEAT BELT RETRACTOR..... 7
AFTER A COLLISION .......................................... 2 . REMOVAL OF SEAT BELT BUCKLE ................... 7 .
Precautions for Battery Service ............................... 3 . INSTALLATION OF SEAT BELT BUCKLE ........... 7 .
SB
SEAT BELTS ............................................................. 4
. Seat Belt Inspection ................................................. 8
.
System Description ................................................. 4
. AFTER A COLLISION .......................................... 8 .
SEAT BELT WARNING CHIME ........................... 4 . PRELIMINARY CHECKS ..................................... 8 .
SEAT BELT WARNING LAMP ............................. 4 . SEAT BELT RETRACTOR ON-VEHICLE I
Removal and Installation of Seat Belt (Coupe) ....... 4 . CHECK ................................................................. 9
.
REMOVAL OF SEAT BELT RETRACTOR ........... 4 . SEAT BELT RETRACTOR OFF-VEHICLE
INSTALLATION OF SEAT BELT RETRACTOR..... 5 CHECK ................................................................. 9
. J

Revision: 2005 August SB-1 2006 350Z
PRECAUTIONS

PRECAUTIONS PFP:00001

Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" NHS00001

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. 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
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:
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.
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.
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.
Precaution for Seat Belt Service NHS00002

CAUTION:
q Before removing the seat belt pre-tensioner assembly, turn the ignition switch off, disconnect the
both battery cables and wait at least 3 minutes.
q Do not use electrical test equipment for seat belt pre-tensioner connector.
q After replacing or reinstalling seat belt pre-tensioner assembly, or reconnecting front seat belt
pre-tensioner connector, check the system function. Refer to SRS-21, "SRS Operation Check" .
q Do not use disassemble buckle or seat belt assembly.
q Replace anchor bolts if they are deformed or worn out.
q Never oil tongue and buckle.
q If any component of seat belt assembly is questionable, do not repair. Replace the whole seat belt
assembly.
q If webbing is cut, frayed, or damaged, replace seat belt assembly.
q When replacing seat belt assembly, use a genuine NISSAN seat belt assembly.
AFTER A COLLISION
WARNING:
Inspect all seat belt assemblies including retractors and attaching hardware after any collision.
NISSAN recommends that all seat belt assemblies in use during a collision be replaced unless the col-
lision was minor and the belts show no damage and continue to operate properly. Failure to do so
could result in serious personal injury in an accident. Seat belt assemblies not in use during a colli-
sion should also be replaced if either damage or improper operation is noted. Seat belt pre-tensioner
should be replaced even if the seat belts are not in use during a frontal collision in which the air bags
are deployed.
Replace any seat belt assembly (including anchor bolts) if:
q The seat belt was in use at the time of a collision (except for minor collisions and the belts, retractors and
buckles show no damage and continue to operate properly).
q The seat belt was damaged in an accident. (i.e. torn webbing, bent retractor or guide).
q The seat belt attaching point was damaged in an accident. Inspect the seat belt attaching area for damage
or distortion and repair as necessary before installing a new seat belt assembly.
q Anchor bolts are deformed or worn out.
q The seat belt pre-tensioner should be replaced even if the seat belts are not in use during the collision in
which the air bags are deployed.

Revision: 2005 August SB-2 2006 350Z
PRECAUTIONS

Precautions for Battery Service NHS00003

A
Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected. B

Revision: 2005 August SB-3 2006 350Z
SEAT BELTS

SEAT BELTS PFP:86884

System Description NHS00004

SEAT BELT WARNING CHIME
q With ignition switch turned ON and seat belt unfastened (seat belt switch ON), warning chime will sound
for approximately 6 seconds.
q If warning chime does not sound. Refer to DI-95, "Seat Belt Buckle Switch (Driver Side) Signal Inspection"
.
SEAT BELT WARNING LAMP
q Fasten driver's seat belt.
q The seat belt warning lamp should go out.
q If the seat belt warning lamp does not go out. Refer to DI-62, "Wiring Diagram -- WARN --" .
Removal and Installation of Seat Belt (Coupe) NHS00005

PHIA0530E

CAUTION:
Before servicing SRS, turn the ignition switch OFF, disconnect both battery cables and wait at least 3
minutes.
REMOVAL OF SEAT BELT RETRACTOR
1. Remove the shoulder anchor cover on the seat belt anchor.
2. Remove the anchor bolt.
3. Slide up outer anchor cover, and remove the anchor bolt.
4. Remove the rear side finisher and rear pillar finisher. Refer to EI-35, "Removal and Installation (for Coupe
Models)" .
5. Remove the center console. Refer to IP-10, "Component Parts Drawing" .
6. Remove the luggage floor finisher lower. Refer to EI-39, "Removal and Installation (for Coupe Models)" .
7. Remove the woofer and woofer amp. (BOSE system) bracket mounting bolts. Refer to AV-47, "Removal
and Installation of Woofer and Woofer Amp. (BOSE System)" .
8. Remove the rear floor box. Refer to EI-39, "Removal and Installation (for Coupe Models)" .

Revision: 2005 August SB-4 2006 350Z
SEAT BELTS

9. Disconnect the seat belt pre-tensioner connector.
CAUTION: A
q For installing/removing pre-tensioner seat belt connec-
tor, insert screwdriver wrapped in tape into notch, lift
lock and remove connector. B
q Install connector with lock raised, and push lock into
connector.
C

PHIA0341E

D
10. Remove the seat belt pre-tensioner retractor fixing screw and anchor bolt, and then remove the seat belt
retractor.
INSTALLATION OF SEAT BELT RETRACTOR E
CAUTION:
Before servicing SRS, turn the ignition switch OFF, disconnect both battery cables and wait at least 3
minutes. F
Install in the reverse order of removal.
REMOVAL OF SEAT BELT BUCKLE
1. Remove the seat. Refer to SE-71, "REMOVAL" . G
2. Remove the screws, and remove the seat cushion inner finisher.
3. Remove the anchor bolt, and remove the buckle.
SB

J
PHIA0174E

INSTALLATION OF SEAT BELT BUCKLE K
Install in the reverse order of removal.

Revision: 2005 August SB-5 2006 350Z
SEAT BELTS

Removal and Installation of Seat Belt (Roadster) NHS00006

PHIA0458E

1. Sash guide 2. Screw 3. Seat belt pre-tensioner connector
4. Spring washer 5. Anchor bolt 6. Shoulder anchor cover
7. Spacer 8. Retaining washer 9. Spacer
10. Outer anchor cover

CAUTION:
Before servicing SRS, turn the ignition switch OFF, disconnect both battery cables and wait at least 3
minutes.
REMOVAL OF SEAT BELT RETRACTOR
1. Remove the shoulder anchor cover on the seat belt anchor.
2. Remove the anchor bolt.
3. Slide up outer anchor cover, and remove the anchor bolt.
4. Remove the rear side finisher. Refer to EI-37, "Removal and Installation (for Roadster Models)" .
5. Remove the center console. Refer to IP-10, "Component Parts Drawing" .
6. Remove the luggage floor finisher lower. Refer to EI-41, "Removal and Installation (for Roadster Models)"
.
7. Remove the woofer and woofer amp. (BOSE system) bracket mounting bolts. Refer to AV-47, "Removal
and Installation of Woofer and Woofer Amp. (BOSE System)" .
8. Remove the rear floor box. Refer to EI-41, "Removal and Installation (for Roadster Models)" .

Revision: 2005 August SB-6 2006 350Z
SEAT BELTS

PHIA0341E

D
10. Remove the seat belt pre-tensioner retractor fixing screw and anchor bolt, and then remove the seat belt
retractor.
11. Remove the sash guide and then remove the seat belt assembly. E
INSTALLATION OF SEAT BELT RETRACTOR
CAUTION:
Before servicing SRS, turn the ignition switch OFF, disconnect both battery cables and wait at least 3 F
minutes.
Install in the reverse order of removal.
REMOVAL OF SEAT BELT BUCKLE G
1. Remove the seat. Refer to SE-71, "REMOVAL" .
2. Remove the screws, and remove the seat cushion inner finisher.
SB
3. Remove the anchor bolt, and remove the buckle.

PHIA0174E
K
INSTALLATION OF SEAT BELT BUCKLE
Install in the reverse order of removal.
L

Revision: 2005 August SB-7 2006 350Z
SEAT BELTS

Seat Belt Inspection NHS00007

AFTER A COLLISION
WARNING:
Inspect all seat belt assemblies including retractors and attached hardware after any collision.
NISSAN recommends that all seat belt assemblies in use during a collision be replaced unless the col-
lision was minor and the belts show no damage and continue to operate properly. Failure to do so
could result in serious personal injury in an accident. Seat belt assemblies not in use during a colli-
sion should also be replaced if either damage or improper operation is noted. Seat belt pre-tensioner
should be replaced even if the seat belts are not in use during a frontal collision in which the air bags
are deployed.
Replace any seat belt assembly (including anchor bolts) if:
q The seat belt was in use at the time of a collision (except for minor collisions and the belts, retractors and
buckles show no damage and continue to operate properly).
q The seat belt was damaged in an accident. (i.e. torn webbing, bent retractor or guide).
q The seat belt attaching point was damaged in an accident. Inspect the seat belt attaching area for damage
or distortion and repair as necessary before installing a new seat belt assembly.
q Anchor bolts are deformed or worn out.
q The seat belt pre-tensioner should be replaced even if the seat belts are not in use during the collision in
which the air bags are deployed.
PRELIMINARY CHECKS
1. Check the seat belt warning lamp/chime for proper operation as follows:
a. Switch ignition ON. The seat belt warning lamp should illuminate. Also, the seat belt warning chime should
sound for about 6 seconds.
b. Fasten driver's seat belt. The seat belt warning lamp should go out and the chime (if sounding) should
stop.
2. If the air bag warning lamp is blinking, conduct self-diagnosis using CONSULT-II, and confirm with air bag
warning lamp. Refer to SRS-21, "SRS Operation Check" .
3. Make sure that the seat belt retractor, seat belt anchor and buckle bolts are securely attached.
4. Check the shoulder seat belt guide for seats. Ensure guide swivels freely and that webbing lays flat and
does not bind in guide. Ensure height adjuster operates properly and holds securely.
5. Check retractor operation:
a. Fully extend the seat belt webbing and check for twists, tears or other damage.
b. Allow the seat belt to retract. Ensure that webbing returns smoothly and completely into the retractor. If
the seat belt does not return smoothly, wipe the inside of the loops with a clean paper cloth, because dirt
built up in the loops of the upper anchors can cause the seat belts to retract slowly.
c. Fasten the seat belt. Check the seat belt returns smoothly and completely to the retractor. If the webbing
does not return smoothly, the cause may be an accumulation of dust or dirt. Use the "SEAT BELT TAPE
SET" and perform the following steps.
Inspect the seat belt through-anchor:
1. Pull the seat belt out to a length of 500 mm (19.69 in) or more.
2. Use a clip or other device to the fix the seat belt at the rear side finisher webbing opening.
3. Pass a thin wire through the through-anchor webbing opening. Hold both ends of the wire and pull taut
while moving it up and down several times along the webbing opening surface to remove dirt.
4. Any dirt that cannot be removed with the wire can be removed by cleaning the opening with a clean
cloth.
5. Apply tape at the point where the webbing contacts the through-anchor webbing opening.
NOTE:
Apply the tape so that there is no looseness or wrinkling.
6. Remove the clip fixing the seat belt and make sure that the webbing returns smoothly.
7. Repeat steps above as necessary to check the other seat belts.

Revision: 2005 August SB-8 2006 350Z
SEAT BELTS

SEAT BELT RETRACTOR ON-VEHICLE CHECK
Emergency Locking Retractors (ELR) A
NOTE:
All seat belt retractors are of the Emergency Locking Retractors (ELR) type. In an emergency (sudden stop)
the retractor will lock and prevent the webbing from extending any further. B
Check the seat belt retractors using the following test(s) to determine if a retractor assembly is operating prop-
erly.
ELR Function Stationary Check C
Grasp the shoulder webbing and pull forward quickly. The retractor should lock and prevent the belt from
extending further.
D
ELR Function Moving Check
WARNING:
Perform the following test in a safe, open area clear of other vehicles and obstructions (for example, a
large, empty parking lot). Road surface must be paved and dry. Do Not perform the following test on E
wet or gravel roads or on public streets and highways. This could result in an accident and serious
personal injury. The driver and passenger must be prepared to brace themselves in the event the
retractor does not lock. F
1. Fasten driver's seat belt. Buckle a passenger into the seat for the belt that is to be tested.
2. Proceed to the designated safe area.
3. Drive the vehicle at approximately 16 km/h (10 MPH). Notify any passengers of a pending sudden stop. G
The driver and passenger must be prepared to brace themselves in the event the retractor does not lock.
Apply brakes firmly and make a very hard stop.
While stopping, seat belts should lock and not be extended. If the seat belt retractor assembly does not lock, SB
perform the retractor off-vehicle check.
SEAT BELT RETRACTOR OFF-VEHICLE CHECK
1. Remove the seat belt retractor assembly. I
2. Slowly pull out webbing while tilting the retractor assembly for-
ward from the mounted position without twisting the retractor
assembly as shown in the figure. J
15 degrees or less tilt : Webbing can be pulled out.
35 degrees or more tilt : Webbing locks and cannot
K
be pulled out.
If NG, replace the retractor assembly.
L

PHIA0175E

Revision: 2005 August SB-9 2006 350Z
SEAT BELTS

Revision: 2005 August SB-10 2006 350Z

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