Nissan Leaf. Instruction — part 1045
COMPONENT INSPECTION
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< BASIC INSPECTION >
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BASIC INSPECTION
COMPONENT INSPECTION
Inspection
INFOID:0000000010394008
AFTER A COLLISION
WARNING:
Inspect all seat belt assemblies including retractors and attaching hardware after any collision.
NISSAN/INFINITI 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. Fail-
ure to do so could result in serious personal injury in an accident. Seat belt assemblies not in use dur-
ing a collision should also be replaced if either damage or improper operation is noted. Seat belt pre-
tensioners 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 is damaged in an accident. Inspect the seat belt attaching area for damage or
distortion and repair if 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.
PRELIMINARY CHECKS
1. Check the seat belt warning lamp for proper operation per the following:
a. Turn ignition switch ON. The seat belt warning lamp should illuminate.
b. Fasten driver seat belt. The seat belt warning lamp should turn OFF.
2. If the air bag warning lamp is blinking, perform self-diagnosis with CONSULT and air bag warning lamp.
SRC-11, "On Board Diagnosis Function"
3. Check that the seat belt retractor, seat belt anchor and buckle bolts are tightened firmly.
4. Check the shoulder seat belt guide and shoulder belt height adjuster for front seats. Check that guide
swivels freely and that webbing lays flat and does not bind in guide. Check that 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. Check 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. Dirt build-up in the
loops of the upper anchors can cause the seat belts to retract slowly.
c. Fasten the seat belt. Check that 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.
d. Inspect the front seat belt D-ring anchor
1. Pull the seat belt out to a length of 500 mm (19.69 in) or more.
2. Hold the seat belt at the center pillar webbing opening with a clip or other device.
3. Pass a thin wire through the D-ring anchor webbing opening. Hold both ends of the wire and pull it
tightly while moving it up and down several times along the webbing opening surface to remove dirt
stuck there.
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 D-ring anchor webbing opening.
NOTE:
Apply the tape so that there is no slack or wrinkling.
6. Remove the clip holding the seat belt and check that the webbing returns smoothly.
6. Repeat steps above if necessary to check the other seat belts.
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< 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 Retractors (ELR) type. In an emergency (sudden stop) the
retractor will lock and prevent the webbing from extending any further. All 3-point type seat belt retractors
except the driver seat belt also have an Automatic 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 partially, 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. The 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 should 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 retract to cancel the automatic locking mode.
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. Never perform the following test on
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 that the
retractor does not lock.
1. Fasten driver 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
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.
FRONT SEAT BELT RETRACTOR OFF-VEHICLE CHECK
1. Remove the front seat belt retractor. Refer to
SB-11, "SEAT BELT RETRACTOR : Removal and Installa-
2. Slowly pull out webbing while tilting the seat belt retractor forward from the mounted position without twist-
ing the seat belt retractor as shown.
A : The webbing can be pulled out if the retractor is tilted 10
°
degree or less.
B : The webbing can not be pulled out if the retractor is tilted 30
°
degrees or more.
NOTE:
A and B show tilting angles.
: Front
3. Replace the seat belt retractor if it does not operate within specifications.
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COMPONENT INSPECTION
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< BASIC INSPECTION >
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REAR SEAT BELT RETRACTOR OFF-VEHICLE CHECK
1. Remove the rear seat belt retractor. Refer to
SB-16, "SEAT BELT RETRACTOR : Removal and Installa-
2. Slowly pull out webbing while tilting the seat belt retractor forward from the mounted position without twist-
ing the seat belt retractor as shown.
A : The webbing can be pulled out if the retractor is tilted 17
°
degree or less.
B : The webbing can not be pulled out if the retractor is tilted 37
°
degrees or more.
NOTE:
A and B show tilting angles.
: Front
3. Replace the seat belt retractor if it does not operate within specifications.
REAR SEAT BELT CENTER RETRACTOR OFF-VEHICLE CHECK
1. Remove the rear seat belt center retractor. Refer to
SB-16, "SEAT BELT RETRACTOR : Removal and
.
2. Slowly pull out webbing while tilting the seat belt retractor forward from the mounted position without twist-
ing the seat belt retractor as shown.
A : The webbing can be pulled out if the retractor is tilted 25
°
degree or less.
B : The webbing can not be pulled out if the retractor is tilted 45
°
degrees or more.
NOTE:
A and B show tilting angles.
: Front
3. Replace the seat belt retractor if it does not operate within specifications.
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< SYSTEM DESCRIPTION >
COMPONENT PARTS
SYSTEM DESCRIPTION
COMPONENT PARTS
Seat belt warning lamp
INFOID:0000000010119329
Seat belt warning lamp on combination meter turns ON during a
period when power switch is turned ON until front seat belts are fas-
tened. Seat belt warning lamp turns OFF when seat belt is fastened.
Seat belt warning lamp turns ON again when seat belt is unfastened.
Seat belt warning chime
INFOID:0000000010119330
Seat belt warning chime sounds for approximately 6 seconds when power switch is turned ON while driver
seat belt is not fastened. Seat belt warning chime stops when seat belt is fastened.
Seat belt pre-tensioner with Load limiter
INFOID:0000000010119331
DESCRIPTION
The seat belt system is equipped with pre-tensioner mechanism, load limiter mechanism, and ELR mecha-
nism (front seat passenger restraint mechanism).
STRUCTURE
PRE-TENSIONER MECHANISM
BF-1928D
1.
ELR shaft (torsion bar)
2.
Bobbin
3.
Manihold case
4.
Lock portion
5.
Ring gear
6.
Pinion gear
7.
Gas generator
8.
Spring
9.
Ball
10.
Pipe
A.
Pre-tensioner mechanism cross sec-
tion
B.
ELR mechanism portion cross sec-
tion
C.
Pre-tensioner mechanism portion
D.
Load limiter portion
JMHIA0167ZZ
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