Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Subaru Impreza 2001-2002.2004-2007 Approved Subaru Impreza 2004 WRX STi 08. MECHANISM AND FUNCTION 49. SEAT BELT SYSTEM 01. Seat Belt
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W1860BE.book Page 2 Tuesday, January 28, 2003 11:01 PM
SEAT BELT
SEAT BELT SYSTEM
1. Seat Belt
A: ADJUSTABLE SHOULDER BELT ANCHOR
1. FRONT
Each front seat belt system has an adjustable shoulder belt anchor which allows the occupant to
select the most appropriate anchor height from among the five positions in a 100 mm (3.94 in)
range.
(1)
SB-00098
(1) Push
SB-2
W1860BE.book Page 3 Tuesday, January 28, 2003 11:01 PM
SEAT BELT
SEAT BELT SYSTEM
2. REAR
The side rear seat belt system has an adjustable shoulder belt anchor which allows the occupant
to select the most appropriate anchor height from among the three positions in a 36 mm (1.4 in)
range.
(1)
SB-00099
(1) Push
SB-3
W1860BE.book Page 4 Tuesday, January 28, 2003 11:01 PM
SEAT BELT
SEAT BELT SYSTEM
B: REAR CENTER THREE-POINT TYPE SEAT BELT
1. SEDAN MODELS
A three-point type seat belt is available for the center seating position of the rear seat.
The retractor for the seat belt is installed on the luggage shelf behind the seating position.
(1)
SB-00143
(1) Retractor
SB-4
W1860BE.book Page 5 Tuesday, January 28, 2003 11:01 PM
SEAT BELT
SEAT BELT SYSTEM
2. WAGON MODELS
A three-point type seat belt is available for the center seating position of the rear seat.
The retractor is installed inside the right rear quarter panel.
(1)
SB-00101
(1) Retractor
SB-5
W1860BE.book Page 6 Tuesday, January 28, 2003 11:01 PM
SEAT BELT
SEAT BELT SYSTEM
C: AUTOMATIC RETRACTOR
When the front passenger's seat belt or any of the rear seat belts is drawn out completely, its retrac-
tor is placed in the automatic locking mode which is used when installing a child restraint system.
In this mode, the belt can be retracted but cannot be extended. When the belt is retracted to a cer-
tain length, this mode is cancelled and normal operation is restored.
(1) (2)
(3) (4)
(5) (6)
SB-00102
(1) Fully retracted
(2) Fully extended
(3) Normal mode (belt can be retracted and pulled out)
(4) Automatic lock mode (belt can be retracted but cannot be pulled out)
(5) Automatic locking mode to normal mode changeover
(6) Normal locking mode to automatic locking mode changeover
SB-6
W1860BE.book Page 7 Tuesday, January 28, 2003 11:01 PM
SEAT BELT
SEAT BELT SYSTEM
D: PRETENSIONER
1. CONSTRUCTION
The driver's and front passenger's seat belts are equipped with seat belt pretensioners. The preten-
sioners use the front sub sensors and the airbag control module inside sensors to control their op-
eration. If the sensors detect an impact exceeding the predetermined level during a frontal or front-
angled collision, the front seat belts are quickly rewound by the retractors to take up slacks for max-
imum restraining of the seat occupants. If the load placed on a seat belt exceeds the predetermined
level, the torsion bar twists to allow the belt to be pulled out, thus lessening the load imposed on the
belt wearer's chest. Once the seat belt pretensioner has been activated, the seat belt retractor re-
mains locked and prevents the seat belt from being pulled out.
The gas generator is activated.
The generated gas pushes the steel balls.
Moving steel balls cause the ring gear to rotate.
(2)
(1) (3)
(4)
(7)
(5)
(6) SB-00103
(1) Tube (5) Spring
(2) Ring gear (6) Gas generator
(3) Pinion (7) Torsion bar
(4) Steel ball
SB-7
W1860BE.book Page 8 Tuesday, January 28, 2003 11:01 PM
SEAT BELT
SEAT BELT SYSTEM
2. FUNCTION
(1) (3)
(2)
(A)
(4)
(B)
(C)
(D)
SB-00105
SB-8
W1860BE.book Page 9 Tuesday, January 28, 2003 11:01 PM
SEAT BELT
SEAT BELT SYSTEM
(A) Collision occurs
(B) Front sub sensor, electric sensor and safety sensor detect an impact greater than the set level.
Operation of pretensioner
Airbags start to inflate
(C) Load limiter operates
(D) Operation complete
(1) Safety sensor and electric sensor
(2) Front sub sensor
(3) Air bag
(4) Retractor with pretensioner
SB-9
W1860BE.book Page 10 Tuesday, January 28, 2003 11:01 PM
SEAT BELT
SEAT BELT SYSTEM
3. PRETENSIONER CONNECTOR
Disconnection:
1) Lift the lock button using a thin tipped tool like a miniature screwdriver.
AB-00529
2) Pull the connector out from the connection point.
AB-00528
Connection:
Carefully insert the connector into the connection point. Push the connector until a "click" is heard
from the lock button.
SB-10
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