We had a tail light on the back of our 5th wheel go out. We replaced it and went on our way. Next morning we hitch up and no lights on trailer at all. No running lights or brake lights etc. Voltage meter at the truck connector shows no power. Took truck to repair shop, fuses all good. He says we need new brake wiring harness. Ford is closed as is weekend. Napa closed also. So we wait till Monday to go to Ford for part. We have disconnected trailer so we can just take truck in. Any thoughts on this? Seems weird.
Mine used to blow the marker lights fuse, ended up being a pinched wire in the marker lights wiring in the trailer.
Being that all the lights are dead though, I would wonder about maybe a bad ground wire.
You can use a fuse and turn on the lamps, like for example here is how I turn on the marker lights -
or can use OHM meter to test for continuity.
[Update, turned out we needed a whole new wiring harness. Replaced, all is well. Was not inexpensive though. Had to go to Ford dealership as no one else where we were had the part. Ah well.
Sign in or register to add a comment.
Add a Comment
Welcome to the LYRV Forum
Click for Invite Information
Ask For Help
Tales From the Road
RV Park Reviews
RV Tips & Tricks
Mods, Repairs & Upgrades
RV Product Reviews
Adding Trailer Lights To Back of a Fifth Wheel for Double Towing
Prowler Travel Trailer, walk through tour to see the mods.
Warning to travel trailer owners
Prowler Travel Trailer Tour
pickup running lights and trailer
Support the Forum
Terms of Service
Created with PlushForums
© 2022 Love Your RV! Forum