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SRS
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10.2.1 DRIVER AIRBAG (DAB) MODULE
General:
The driver airbag module is located in the steering
wheel and its function is controlled by the SRS
ECU. A bag within the module inflates to protect
the driver in the event of a collision severe enough
to deploy the system.
The driver airbag module connects to the steering
column wiring harness via a rotary coupler called
as clock spring. Within the driver airbag module is
a squib which, when given the correct current by
the SRS ECU, inflates the airbag by initiating a
chemical reaction. In deployment, the airbag
inflates within a fraction of a second and then
deflate at a controlled rate as the driver body
regions; typically head and chest interact with
airbag. Vents in the airbag control its deflation.
The SRS ECU regularly applies a test current to
the driver airbag squib to confirm continuity of the
ignition circuitry.
10.2.2 PASSENGER AIRBAG (PAB) MODULE
General:
The passenger airbag module is located below
the dashboard; above the glove box and is
functioning is controlled by the SRS ECU. A bag
within the module inflates to protect the passenger
in the event of a collision severe enough to deploy
the system. The passenger airbag does not have
a separate cover. The cover is integral with
cockpit skin.
Within the passenger airbag module is a squib
which, when given the correct current by the SRS
ECU, inflates the airbag by initiating a chemical
reaction. In deployment, the airbag inflates within
a fraction of a second and then deflates at a
controlled rate as the passenger body regions;
typically head and chest interact with airbag.
Vents in the airbag control its deflation. The SRS
ECU regularly applies a test current to the
passenger airbag squib to confirm continuity of
the ignition circuitry.