I have no marker lights on trailer,only brake & directionals work .On the truck , Rear taillights , only brake & directionals work .What could it be ? The truck ?
I have no marker lights on trailer,only brake & directionals work .On the truck , Rear taillights , only brake & directionals work .What could it be ? The truck ?
Tail lights probably have their own ground wire, whereas the marker lights work off the trailer frame. I'd look for a bad ground or disconnected ground wire in the trailer harness or on the frame.
Trailer lights and truck lights are separate wiring. You likely have a blown fuse in your truck for trailer tail lights.
If you have integrity, nothing else matters. If you don't have integrity,
nothing else matters.
Took the truck to the dealer ,gave it a quick going through some of the fuses. Going to leave it for them next week for a day. service manager said it was something to do with a relay . Hope they can get this squared away soon ,and NOT a major issue .
Oh dear............We are going to learn something, or at least I am.