The VH1800 is a multi-purpose device used in automotive applications. It is designed to provide power Door Lock, window and sunroof control, remote start shutoff and Emergency Services Interface (ESI) capability. The VH1800 can also provide centralized power distribution and override control while providing a general purpose output signal used to switch relays and lamps. The use of the VH1800 enables multiple control capabilities that could not be achieved with existing single-function control components.