Seat, seatbelt and SRS airbags/*SRS airbag (Supplemental Restraint System airbag)
head.
In a rollover, SRS curtain airbags on both
sides of the vehicle deploy between the
occupant and the side window and supplement the seatbelt by reducing the
impact to the occupant’s head.
In a frontal collision, SRS side airbags and
SRS curtain airbags on both sides of the
vehicle deploy between the occupant and
the side window and supplement the
seatbelt by reducing the impact to the
occupant’s head and chest.
! Operation
The SRS side airbag and SRS curtain
airbag can function only when the ignition
switch is in the “ON” position.
The driver’s and front passenger’s SRS
side airbags and SRS curtain airbags
deploy independently of each other since
each has its own impact sensor.
An impact sensor, which senses impact
force, is located in each of the following
locations.
. In the left and right front doors
. In the left and right center pillars
. In the left and right rear wheel houses
. Under the rear center seat
. On both sides of the radiator panel
(frontal impact sensor)
Rollover sensor and frontal impact sensor
are located inside the airbag control
module which is located under the center
of the instrument panel.
If the impact sensor that is located under
the rear center seat and one of the center
pillar impact sensors or front door impact
sensors both sense an impact force above
a predetermined level in a side collision,
the control module causes both the SRS
side airbag and curtain airbag on the
impacted side to inflate regardless of
whether the rear wheel house impact
sensor on the same side senses an
impact.
If the impact sensor that is located under
the rear center seat and one of the rear
1-57
wheel house impact sensors together
sense an impact force above a predetermined level in a side collision, the control
module causes only the SRS curtain
airbag on the impacted side to inflate.
Even if a frontal collision occurs, both right
and left SRS side airbags and SRS curtain
airbags will deploy when the front sensor
and the control unit determine that the
impact results from an offset frontal collision.
The SRS side airbags and SRS curtain
airbags are designed to deploy when the
driver’s SRS frontal airbag deploys or the
driver’s and passenger’s SRS frontal airbags deploy in a frontal collision, and also
when the system determines that the
collision is an offset frontal collision. The
SRS side airbags and SRS curtain airbags are basically designed not to deploy
in a frontal collision when the SRS frontal
airbags do not deploy or the system
determines that the collision is other than
an offset frontal collision.
If the rollover sensor detects rollover of the
vehicle, the control module inflates the
SRS curtain airbags on both sides. At this
time, the driver’s and front passenger’s
seatbelt pretensioners also operate at the
same time.
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