Description & Operation
WARNING:
To avoid injury from accidental air bag deployment, read and understand all WARNINGS and AIR BAG SAFETY PRECAUTIONS
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The purpose of Supplemental Inflatable Restraint (SIR) system is to augment driver and front passenger seat belts to reduce risk of severe injury during certain frontal impacts. Main components of SIR system are Sensing and Diagnostic Module (SDM), forward discriminating sensor, driver and passenger-side air bag modules, SIR coil assembly, and AIR BAG warning lamp. SDM controls function of other SIR system components, supplies a 23 volt back-up power supply and provides monitoring and diagnostic capabilities to SIR system.