Systems and methods are described for a push-button switch assembly with the ability to diagnose faults. The push-button switch assembly comprises a first circuit comprising a first resistor arranged in series with a first switch, and a second resistor arranged in parallel with the first resistor and the first switch, and a second circuit comprising a third resistor arranged in series with a second switch, and a fourth resistor arranged in parallel with the third resistor and the second switch, wherein the first switch and the second switch are each closable by displacement of a push-button of the push-button switch assembly.