Electrical System
WARNING: This page is about a different car, the 1997 Ford Probe. However, it is still accessible from the selected car via links, so may be relevant.
SRS is powered directly from battery and can function with ignition switch in any position, including OFF and LOCK. System can also function when driver-side and passenger-side seats are unoccupied. The 3 main functions performed by electrical subsystem are: detecting an impact, switching electric power to igniters for air bags, and monitoring readiness of SRS.