Originally Posted by
UrbanE
I know you’ve thought of this but are you using connectors or soldering the connections. Sometimes the crimp connectors come loose and it could become an intermittent problem
I am using both crimp and solder connections but the fault is constant. The wire is a ground from the BCM and the switch is in the ground wire, in one position the power goes to ground freely and in the other position the voltage is passed through a resistor and less voltage passes through to ground. Professor ala_xfire explained the resistor function. He also said I should solder all wires, I think I will eliminate the crimp connectors in these two wires and get the actual voltage from the switch, one will be the nominal 12 volt but I’ll find the other.
Edit
I soldered the crimped connections and no change.