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RSU-50
SERVICE DATA AND SPECIFICATIONS (SDS)
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SB-1
SEAT BELTS
H RESTRAINTS
CONTENTS
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PRECAUTIONS .....................................................
..... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 2
Precautions for Seat Belt Service ....................... ..... 2
AFTER A COLLISION ...................................... ..... 2
SEAT BELTS ......................................................... ..... 3
Removal and Installation of Front Seat Belt ........ ..... 3
FRONT SEAT BELT RETRACTOR .................. ..... 4
FRONT SEAT BELT BUCKLE .......................... ..... 5
Removal and Installation of Second Row Seat Belt ..... 6
REMOVAL ........................................................ ..... 7
INSTALLATION ................................................ ..... 7
SECOND ROW SEAT BELT BUCKLE ............. ..... 7
SECOND ROW SEAT BELT RETRACTOR -
BENCH SEAT .................................................. ..... 7
Removal and Installation of Third Row Seat Belt ..... 8 REMOVAL ........................................................
..... 8
INSTALLATION ................................................ ..... 9
REMOVAL ........................................................ ..... 9
INSTALLATION ................................................ ..... 9
THIRD ROW SEAT BELT BUCKLE ................. ..... 9
Seat Belt Inspection ............................................. ... 11
AFTER A COLLISION ...................................... ... 11
PRELIMINARY CHECKS ................................. ... 11
SEAT BELT RETRACTOR ON-VEHICLE
CHECK ............................................................. ... 12
SEAT BELT RETRACTOR OFF-VEHICLE
CHECK ............................................................. ... 12
LATCH (LOWER ANCHORS AND TETHER FOR
CHILDREN) SYSTEM ............................................ ... 14
Removal and Installation ..................................... ... 14
TOP TETHER STRAP CHILD RESTRAINT .......... ... 15
Removal and Installation ..................................... ... 15
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SB-2
PRECAUTIONS
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PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EHS00161
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:
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 Seat Belt ServiceEHS00162
CAUTION:
Before removing the seat belt pre-tensioner assembly, turn the ignition switch OFF, disconnect
both battery cables and wait at least 3 minutes.
After replacing or reinstalling seat belt pre-tensioner assembly, or reconnecting seat belt pre-ten-
sioner assembly connector, make sure entire SRS operates properly. Refer to SRS-20, "
SRS Oper-
ation Check" .
Do not disassemble buckle or seat belt assembly.
Do not reuse seat belt anchor bolts after removal. Replace with new ones.
Replace anchor bolts if they are deformed or worn out.
Never oil tongue and buckle.
If any component of seat belt assembly is questionable, do not repair. Replace the whole seat belt
assembly.
If webbing is cut, frayed, or damaged, replace seat belt assembly.
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
collision 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
collision 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:
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).
The seat belt was damaged in an accident. (i.e., torn webbing, bent retractor or guide, etc.)
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.
Anchor bolts are deformed or worn out.
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.
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SEAT BELTSSB-3
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SEAT BELTSPFP:86884
Removal and Installation of Front Seat Belt EHS001N0
1. Assist handle2. Assist handle screw cover3. D-ring anchor bolt cover
4. Seat belt buckle 5. Seat belt retractor and belt assem-
bly LH 6. Anchor cover
7. Seat belt pre-tensioner connector 8. Center pillar lower finisher 9. Seat belt anchor
10. Center pillar 11. Center pillar upper finisher12. Seat belt height adjuster
13. Seat belt height adjuster finisher
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SB-4
SEAT BELTS
Revision: November 20092006 QX56
FRONT SEAT BELT RETRACTOR
Removal
CAUTION:
Before servicing SRS, turn the ignition switch off, disconnect both battery cables and wait at least
3 minutes.
1. Remove the center pillar upper/lower finishers. Refer to EI-35, "
BODY SIDE TRIM" .
2. Remove the seat belt retractor anchor bolts and seat belt retractor and belt assembly.
On RH side, disconnect the seat belt tension sensor.
3. Disconnect the seat belt pre-tensioner electrical connector. CAUTION:
For removing pre-tensioner connector, insert a thin
screwdriver (1) wrapped in tape (3) into the notch. Lift the
locking tab to unlock (2), then remove the connector.
Install the pre-tensioner connector with the locking tab
raised, then push the locking tab into the connector to
lock (4).
Installation
Installation is in the reverse order of removal.
Install the seat belt retractor and belt assembly upper bolt first.
Ensure that seat belt height adjuster is locked in the lowest position during installation.
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SEAT BELTSSB-5
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FRONT SEAT BELT BUCKLE
Removal
1. Remove the front seat. Refer to SE-91, "FRONT SEAT" .
2. Remove the seat cushion. Refer to SE-96, "
SEAT CUSHION TRIM AND PAD (DRIVER) OR SEAT
CUSHION ASSEMBLY (PASSENGER)" .
3. Disconnect the seat belt buckle pre-tensioner electrical connector. CAUTION:
For removing pre-tensioner connector, insert a thin
screwdriver (1) wrapped in tape (3) into the notch. Lift the
locking tab to unlock (2), then remove the connector.
Install the pre-tensioner connector with the locking tab
raised, then push the locking tab into the connector to
lock (4).
4. Remove screw and seat cushion inner finisher.
5. Remove the anchor bolt, then remove front seat belt buckle from the seat frame.
Installation
Installation is in the reverse order of removal.
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SB-6
SEAT BELTS
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Removal and Installation of Second Row Seat Belt EHS001N1
1. Seat belt height adjuster2. D-ring anchor bolt cover 3. D-ring anchor
4. Seat belt retractor and belt assem- bly 5. Seat belt buckle
6. Seat belt retractor cover
7. Push pin 8. Seat belt retractor and belt assem-
bly 9. Seat belt bezel
10. Seat belt buckle 11. Seat cushion finisher 12. Seat belt lower anchor
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SEAT BELTSSB-7
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REMOVAL
1. Remove seat belt lower anchor cover and bolt.
2. Remove the D-ring anchor bolt cover and D-ring anchor bolt.
3. Remove the upper and lower luggage area trim. Refer to EI-35, "
BODY SIDE TRIM" .
4. Remove the seat belt guide bolt.
5. Remove seat belt retractor anchor bolt and the seat belt assembly.
6. Remove the seat belt height adjuster assembly.
INSTALLATION
Installation is in the reverse order of removal.
Ensure that seat belt height adjuster is locked in the lowest position during installation.
SECOND ROW SEAT BELT BUCKLE
Removal
1. Remove the rear bucket seat.
2. Remove the screw and seat cushion inner finisher. Refer to SE-
98, "Second Row Center"
3. Remove the anchor bolt and buckle.
4. Remove the rear bench seat. Refer to SE-98, "
Second Row Outboard" .
5. Remove the seat cushion finisher.
6. Remove the anchor bolt and buckle.
Installation
Installation is in the reverse order of removal.
SECOND ROW SEAT BELT RETRACTOR - BENCH SEAT
Removal
1. Remove seat belt anchor.
2. Remove seat belt bezel.
3. Remove seat back upholstery and foam. Refer to SE-99, "
Disassembly and Assembly" .
4. Remove seat belt retractor cover.
5. Remove bolt and remove seat belt retractor and seat belt assembly.
Installation
Installation is in the reverse order of removal.
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