Originally Posted by Sherritini
Thanks John for taking the time to reply. It was a corroded pin in the seven pin connector. All is well now!
That points out one of the interesting problems troubleshooting circuits with LED lamps. They draw so little current that stuff (like corrosion) can provide enough of a path that they will light
. Another LED "got you" that shows up is finding voltage on a socket for a circuit that has a dead fuse. Indicator fuses (the ones that have an LED built into them) or the fuse blocks that include a LED to indicate a blown fuse will still show voltage at the receptacles, or sockets (without a lamp) on the circuit.
Again, it only takes 20 ma or so to light
many single LEDs, and the arrays will also light
(although sometimes dimly) with minimal current.