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 48. AIRBAG SYSTEM 01. Airbag System
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W1860BE.book Page 2 Tuesday, January 28, 2003 11:01 PM
AIRBAG SYSTEM
AIRBAG SYSTEM
1. Airbag System
A: CONSTRUCTION
(4)
(15)
(11)
(6)
(5)
(14)
(7)
(8)
(9)
(1) (13)
(3)
(2) (3) (10)
(3)
(12)
AB-00599
(1) Front sub sensor (9) Airbag control module
(2) 6-pin connector (yellow) (10) 28-pin connector (yellow)
(3) 2-pin connector (yellow) (11) 2-pin connector (yellow)
(4) Airbag module (driver) (12) Airbag module (side)
(5) 12-pin connector (yellow) (13) 2-pin connector (black) (to seat belt pretensioner)
(6) Airbag module (passenger) (14) 2-pin connector (yellow)
(7) Side airbag sensor (15) 2-pin connector (black)
(8) 4-pin connector (yellow)
AB-2
W1860BE.book Page 3 Tuesday, January 28, 2003 11:01 PM
AIRBAG SYSTEM
AIRBAG SYSTEM
B: FUNCTION
1. FRONT AIRBAG
The airbag system is provided as a driver and front passenger restraint system supplementary to
the seat belts. When an impact greater than a set level is applied to the front of the vehicle, the air-
bag control module activates the airbag modules in response to the signal from the sensor. The air-
bag modules activate to inflate the airbags, thus preventing the driver's and passenger's upper
bodies from directly hitting against the steering wheel, instrument panel and/or windshield.
AB-3
W1860BE.book Page 4 Tuesday, January 28, 2003 11:01 PM
AIRBAG SYSTEM
AIRBAG SYSTEM
(A) (B)
(5)
(2) (3)
(6)
(4)
(1)
(a)
(b)
(c)
AB-00090
(A) Driver's side (1) Front sub sensor (a) Collision occurs.
(B) Passenger's side (2) Safety sensor and electric sensor (b) Front sub sensor, electric sen-
sor and safety sensor detect an
impact greater than the set level.
(3) Inflator Inflators is ignited.
(4) Front sub sensor Gas is generated.
(5) Safety sensor and electric sensor Airbag inflation completes.
(6) Inflator Gas is discharged.
(c) Airbags deflate.
AB-4
W1860BE.book Page 5 Tuesday, January 28, 2003 11:01 PM
AIRBAG SYSTEM
AIRBAG SYSTEM
2. SIDE AIRBAG
The side airbags provide the driver and front passenger with a restraint supplementary to that by
the seat belts in the event of a side-on collision. When an impact greater than the set level is applied
to either side of the vehicle, the airbag control module activates the corresponding side airbag mod-
ule in response to the ignition signal sent from the side airbag sensor on the relevant side. The side
airbag module operates to inflate the airbag, thus reducing the shock inflicted in the outside upper
body (chest and head) of the driver or front passenger.
AB-5
W1860BE.book Page 6 Tuesday, January 28, 2003 11:01 PM
AIRBAG SYSTEM
AIRBAG SYSTEM
(3)
(1)
(2) (A)
(B)
(C)
AB-00091
(1) Airbag control module (A) Collision occurs.
(2) Inflator (B) The side airbag sensor detects an impact greater
than the set level.
(3) Side airbag sensor Inflators is ignited.
Gas is generated.
Airbag inflation completes.
Gas is discharged.
(C) Airbags deflate.
AB-6
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