Infiniti G37 Coupe. Manual - part 1071

SB-6

< ON-VEHICLE REPAIR >

FRONT SEAT BELT

• Remove the fixing anchor bolt of the outer anchor.

2.

Remove the shoulder anchor.
• Remove the shoulder anchor cover.
• Remove the fixing anchor bolt of the shoulder anchor.

3.

Remove the rear side finisher and rear pillar finisher. Refer to 

INT-14, "Removal and Installation"

.

4.

Remove the seat belt bracket. Remove the fixing bolt of the seat belt bracket.

5.

Remove the seat belt assembly.
• Disconnect the seat belt pre-tensioner connector.

CAUTION:

• For installing/removing seat belt pre-tensioner connec-

tor, insert thin screwdriver wrapped in tape into notch,
lift lock and remove connector.

• Install connector with lock raised, and push lock into

connector.

• Disconnect the pre-crash seat belt connector.
• Remove the fixing screw and anchor bolt of the pre-tensioner seat belt retractor.

INSTALLATION

Install in the reverse order of removal.

SEAT BELT BUCKLE

SEAT BELT BUCKLE : Inspection

INFOID:0000000001728786

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. 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 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.

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 using CONSULT-III and air bag warning
lamp. Refer to 

SRC-15, "Diagnosis Description"

.

3.

Check that the seat belt retractor, seat belt anchor and buckle bolts are securely attached.

4.

Repeat steps above as necessary to check the other seat belts.

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FRONT SEAT BELT

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SEAT BELT BUCKLE : Exploded View

INFOID:0000000001728787

SEAT BELT BUCKLE : Removal and Installation

INFOID:0000000001728788

REMOVAL

Remove the seat belt buckle.
• Remove the front seat from vehicle. Refer to 

SE-152, "Removal and Installation"

 (for ease of tool operation

in narrow space).

• Disconnect the seat belt buckle harness connector and harness clamp.
• Remove the fixing anchor bolt of the seat belt buckle.

INSTALLATION

Install in the reverse order of removal.

1.

Seat belt buckle harness connector

2.

Anchor bolt

3.

Retaining washer

4.

Washer

5.

Spacer

6.

Seat belt buckle

7.

Wave washer

Refer to 

GI-4, "Components"

 for symbols in the figure.

JMHIA0029GB

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< ON-VEHICLE REPAIR >

REAR SEAT BELT

REAR SEAT BELT

SEAT BELT RETRACTOR

SEAT BELT RETRACTOR : Inspection

INFOID:0000000001728789

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. 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 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-tensioners 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.

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-III and air bag warning lamp.
Refer to 

SRC-15, "Diagnosis Description"

.

3.

Check that the seat belt retractor, seat belt anchor and buckle bolts are securely attached.

4.

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 that 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. 

5.

Repeat steps above as necessary to check the other seat belts.

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's 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

REAR SEAT BELT

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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
NG, 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. DO NOT 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, per-
form the retractor off-vehicle check.

SEAT BELT RETRACTOR OFF-VEHICLE CHECK

1.

Remove the seat belt retractor.
Remove the rear seat belt assembly, refer to 

SB-10, "SEAT BELT RETRACTOR : Removal and Installa-

tion"

.

2.

Slowly pull out webbing while tilting the retractor 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 degrees or less.
B : The webbing cannot be pulled out in case the retractor is
tilted 27 degrees or more.
• A and B show tilting angles.
•

 : Vehicle front.

Replace the seat belt assembly if it does not operate normally.

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