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.
Best odds are this, along with a short somewhere in the running light circuit that overloads it.Originally Posted by CatFan
Check the brown wire sometimes it gets a bare spot and contacts the frame.
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.
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