Air Bag Module (Driver) and Clock Spring
AIR BAG MODULE (DRIVER) AND CLOCK SPRINGDESCRIPTION
Driver Airbag (DAB) is installed in steering wheel and electrically connected to SRSCM via clockspring. It protects the driver from danger with deploying a bag when frontal crash occurs. The SRSCM determines deployment of Driver Airbag (DAB) by using the Front Impact Sensor (FIS) signal. The driver airbag is two stage devices. If the crash algorithm determines that only the first stage is to be activated, the second stage will be automatically disposed of after a programmable time in milliseconds (120ms) has elapsed since the first stage deployment. The driver firing loops (2 total) are backed up (BPS) for 150ms if the battery connection is lost in a crash.
CAUTION: Never attempt to measure the circuit resistance of the airbag module (squib) even if you are using the specified tester. If the circuit resistance is measured with a tester, accidental airbag deployment will result in serious personal injury.