Installation for warning against motor vehicle theft picks up an alarm signal from the failure in a current flowing continuously and regularly into a component

摘要

An alarm signal (S2) is picked up from the failure in a current flowing continuously and regularly into a component (3). This current serves to indicate a failure in the operation of a component or a component's function. A keyboard (1) on a motor vehicle dashboard contains operating keys (2) for adjusting different functions like single parts in a headlamp such as sidelights, low beam and high beam. An evaluation device tests any adjustments.