Front Seat Belt
FRONT SEAT BELT
SEAT BELT RETRACTOR : Inspection
AFTER A COLLISION
WARNING:
Inspect all seat belt assemblies including retractors and attached 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. 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 pretensioners 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 is 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 is 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 as necessary before installing a new seat belt assembly.
- Anchor bolts are deformed or worn out.
- The seat belt pre-tensioners must 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.Turn ignition switch ON. The seat belt warning lamp should illuminate. Also, the seat belt warning chime should sound for about six seconds.
b.Fasten driver seat belt. The seat belt warning lamp should turn off and the chime (if sounding) should stop.
2.If the air bag warning lamp is blinking, conduct self-diagnosis with CONSULT and air bag warning lamp.
Refer to "Diagnosis Description" Diagnosis Description.
3.Check that the seat belt retractor, seat belt anchor and buckle bolts are securely attached.
4.Check the shoulder seat belt guide and shoulder belt height adjuster for front 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 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.
1.Pull the seat belt out to a length of 500 mm (19.69 in) or more.
2.Fix the seat belt at the center pillar webbing opening with a clip or other device.
3.Pass a thin wire through the through-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 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 check that the webbing returns smoothly.
6.Repeat steps above as necessary to check the other seat belts.
SEAT BELT RETRACTOR ON-VEHICLE CHECK
Emergency Locking Retractors (ELR)
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.
Check the seat belt retractors with the following test(s) to determine if a retractor assembly is operating properly.
ELR Function Stationary Check
Grasp the shoulder webbing and pull forward quickly. The retractor should lock and prevent the belt from extending further.
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 stop, 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 OFF-VEHICLE CHECK
1.Remove the seat belt retractor.
Remove the front seat belt assembly. Refer to "SEAT BELT RETRACTOR : Removal and Installation" Removal and Installation.
2.Slowly pull out webbing while tilting the retractor assembly forward from the mounted position without twisting the retractor assembly as shown in the figure.
- The webbing can be pulled out when the angle (A) is 15
degrees or less.
- The webbing cannot be pulled out when the angle (B) is 27
degrees or more.
Replace the seat belt assembly if it does not operate normally.