Not even related. You had a major malfunction somewhere. The detector probably went off due to LOW voltage. Most Detectors of your year, had 2- 12 volt connections. 1 is to the coach 12 volt battery and the 2nd is to the Chassis 12 volt system. Odds are your chassis system lost voltage and that is why the detector went off and you lost ignition power. Either your Alternator or battery or the battery cable connections/ignition were faulty. It was a coincidence. NO RV maker would ever connect their systems to kill power to a chassis system. Doug