Patent ID: 8482394

Claim:
In combination: a motor-vehicle door latch having at least two operational positions; a motor-vehicle power supply providing a pulsed output voltage; an electrical controller responsive to the two positions of the latch; a sensor switch connected to the power supply, receiving the output voltage therefrom, and having a voltage-conducting on position and a nonconducting off position, the switch being operatively connected to the latch such that each of the switch positions corresponds to a respective one of the latch positions; and a subcircuit having two branches connected between the switch and the controller and connected in the positions by the sensor switch to the power supply so as to create in each of the positions of the switch a respective output current lying within a respective current range, the branches being of different respective resistances such that one of the current ranges is above the other of the ranges and has a lowermost current level that is substantially higher than an uppermost current level of the other range and separated therefrom by a current-free range.