SRS 2 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.
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