Some electrical equipment on WITHOUT the master switch ON?

[cessnadriver]

JAG. Thanks for the reply. My multi-meter does not have a diode tester but I did see on Youtube that a diode can be checked using the Ohm (resistance) selector on the meter, it shows resistance on one side and when the leads switched there will be no resistance. I think it's the diode going into the master switch that maybe the problem although I haven't had a chance to do the test. ITS VERY COLD HERE IN PENNSYLVANIA!! I'll let you when I do the test on the two diodes-let hope! BILLS