Has anyone had issues with their trailer lights flickering on and off. I have never had a problem till last night. Everything seems tight including the grounds. Something weird is that if I shake the wires it doesn't come on but if I tap on the tongue
it seems to flicker on. Has anyone ever had their plug go bad?
Also, should the lights illuminate when plugged in without the trailer being connected to the truck? Any suggestions on what I should look for.
Thanks in advance