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SB-1
RESTRAINTS
C
D E
F
G
I
J
K L
M
SECTION SB
A
B
SB
N
O P
CONTENTS
SEAT BELT SYSTEM
PRECAUTION ................ ...............................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution for Seat Belt Service ...............................2
Precaution for Work ..................................................2
PREPARATION ............................................4
PREPARATION .............................................. .....4
Special Service Tool ........................................... ......4
BASIC INSPECTION ....................................5
COMPONENT INSPEC TION ...............................5
Inspection ............................................................ .....5
REMOVAL AND INSTALLATION ................8
FRONT SEAT BELT ..........................................8
Exploded View ..................................................... .....8
Removal and Installation ..........................................8
REAR SEAT BELT ............................................11
Exploded View .........................................................11
Removal and Installation .........................................11
LATCH SYSTEM FOR CHILDREN ...................13
Removal and Installation .........................................13
TOP TETHER STRAP CHILD RESTRAINT .....14
Removal and Installation .........................................14
Revision: November 20132014 Altima NAM
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SB-6
< BASIC INSPECTION >
COMPONENT INSPECTION
SEAT BELT RETRACTOR ON-VEHICLE CHECK
Emergency Locking Retractors (ELR) and Automatic Locking Retractors (ALR)
NOTE:
All seat belt retractors are Emergency Locking Retr actors (ELR) type. In an emergency (sudden stop) the
retractor will lock and prevent the webbing from extendi ng any further. All 3-point type seat belt retractors
except the driver seat belt also have an Automati c Locking Retractors (ALR) mode. The ALR mode (also
called child restraint mode) is used when installing child seats. The ALR mode is activated when the seat belt
is fully extended. When the webbing is then retracted part ially, the ALR mode automatically locks the seat belt
in a specific position so the webbing cannot be extended any further. To cancel the ALR mode, allow the seat
belt to fully wind back into the retractor.
Check the seat belt retractors with the following test(s ) to determine if a retractor assembly is operating prop-
erly.
ELR Function Stationary Check
Grasp the shoulder webbing and pull forward quickly. T he retractor should lock and prevent the belt from
extending further.
ALR Function Stationary Check
1. Pull out the entire length of seat belt from retractor until a click is heard.
2. Retract the webbing partially. A clicking noise shoul d be heard as the webbing retracts, indicating that the
retractor is in the Automatic Locking Retractors (ALR) mode.
3. Grasp the seat belt and try to pull out the retractor. The webbing must lock and not extend any further. If it
does not operate normally, replace the retractor assembly.
4. Allow the entire length of the webbing to re tract to cancel the automatic locking mode.
ELR Function Moving Check
WARNING:
Perform the following test in a saf e, open area clear of other vehicles and obstructions (for example, a
large, empty parking lot). Road surface must be p aved and dry. Never perform the following test on
wet or gravel roads or on public streets and highw ays. This could result in an accident and serious
personal injury. The driver and passenger must be prepared to brace themselves in the event that the
retractor does not lock.
1. Fasten driver seat belt. Buckle a passenger in to 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
and the driver and passenger must be prepared to brace themselves in the event that the retractor does
not lock. Apply brakes firmly and make a very hard stop.
During stopping, seat belts should lock and not be extended. If the seat belt retractor assembly does not lock,
perform the retractor off-vehicle check.
SEAT BELT RETRACTOR O FF-VEHICLE CHECK (PILLAR)
1. Remove the seat belt retractor.
• Remove the front seat belt assembly, refer to SB-8, "Removal and Installation"
.
2. Slowly pull out webbing while tilting the retracto r assembly forward from the mounted position without
twisting the retractor assembly as shown in the illustration.
A : The webbing can be pulled out in case the retractor is tilted
15 ° degree or less.
B : The webbing can not be pulled out if the retractor is tilted 35 °
degrees or more.
• A and B show tilting angles.
: Front
Replace the seat belt assembly if it does not operate within specifications.
PHIA0954J
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SRC-12
< SYSTEM DESCRIPTION >
SYSTEM
OCCUPANT CLASSIFICATION SYSTEM : System Diagram
INFOID:0000000009460719
OCCUPANT CLASSIFICATION SY STEM : System DescriptionINFOID:0000000009460720
The occupant classification system (OCS) identifies diff erent size occupants, out of position occupants, and
detects if a child seat is present in the front passenger seat. The OCS control unit (2) receives inputs from the
occupant classification sensors (1) (located inside t he passenger seat cushion assembly). Depending on clas-
sification of the passenger, the OCS sends a signal to the air bag diagnosis sensor unit. The air bag diagnosis
sensor unit uses this signal and the seat belt buckle switch (passenger seat) signal to determine deployment
or non deployment of the passenger front air bag in the event of a collision. Depending on the signals
received, the air bag diagnosis sensor unit can dis able the passenger front air bag completely. The OCS
(weight sensors) must be set to zero point using CONSULT after servicing the OCS system.
NOTE:
• CONSULT can be used to confirm when “zero point reset” for OCS is complete.
• Always perform zero point reset after the removal and installation of the seat or when disconnecting the
OCS control unit harness connector even if zero point reset has been completed in the past.
• If zero point reset is incomplete, the passenger air bag will be disabled and the passenger air bag off indica-
tor will be ON.
• In case of customer concern, CONSULT can be us ed to confirm the passenger air bag status (readiness).
Passenger Air Bag Status Conditions
NOTE:
AWHIA0390GB
Front Passenger Seat
(Condition) PASS AIR BAG OFF Indicator
(Status) Passenger Air Bag Status
(Readiness) CONSULT Display
Seat occupied OFF Active (enabled) ON
Seat occupied
NOTEON Deactivated (disabled) OFF
Seat empty OFF Deactivated (disabled) OFF
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM