My son looked things over in the engine compartment and didn't find anything so far , but we are still looking.

One thing my wife reminded me of , when we hook either of my trailers up ( I have a flat bed car trailer and
my 12 foot swap meet trailer ) the trailer lights come on and stay on , even when the headlight switch is shut off.
That is as long as the key is turned on.

Also I have a drivers side front turn signal that is lit up on the dash , like it out , not working and flashes fast when
you turn it on to use it. When a trailer is plugged in , it works fine. Turn signal lite in the dash is off and it flashes like it
supposed to flash.

Frank