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RESTRAINT SYSTEMS DESCRIPTION AND OPERATION 75-5 Passenger airbag module The passenger airbag module is located in the instrument panel above the glove box and is controlled by the DCU. Within the passenger airbag module is a squib which, when given the correct current by the DCU, inflates the airbag The DCU regularly applies a test current to the passenger airbag squib to confirm continuity of the ignition circuitry. The DCU is capable of detecting a short to ground, a short to battery and an open circuit for the passenger airbag The DCU also stores the following additional information on each fault: l A count indicating the number of times the fault has occurred. l A start time and an end time for the fault to indicate duration of the fault. |