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Message
Pulled the wiring harness from my fifth wheel
Posted on 4/7/24 at 8:04 pm
Posted on 4/7/24 at 8:04 pm
Was parking it after the weekend getaway and it got caught on the tailgate. Pulled it completely out of the junction box. Got the lights all working but the trailer brakes still aren’t functioning. I’ve searched the web and can’t find solutions so alas I’ve come here. I have the 12v+ from the truck to the 12v+ on the trailer and the 12v- and all the white wires to the 12v- to the trailer. Best I can tell all whites should be neutral. I have the blue trailer brake wire to what I can only assume is the rv’s trailer brake wire because it was the only colored wire not used (it was blue too). The break away switch has two wires. One I spliced in with the blue wires and the other I ran to a wire that runs directly from the rv battery.
When I first started my truck would acknowledge the trailer was hooked up but was giving me a “service trailer brake”. The way I have it now my truck isn’t acknowledging the brakes but lights work. No output from the control when manually operating brakes from control.
Any solutions?
When I first started my truck would acknowledge the trailer was hooked up but was giving me a “service trailer brake”. The way I have it now my truck isn’t acknowledging the brakes but lights work. No output from the control when manually operating brakes from control.
Any solutions?
11
Posted on 4/7/24 at 8:14 pm to GAFF
Posted on 4/7/24 at 8:15 pm to GAFF
I think they pull your Southern man card is you have a trailer where all the lights work properly.
Posted on 4/7/24 at 8:15 pm to GAFF
It isnt an AC system. The white wires aren't neutral, they are something else. Everything is going to be frame grounded and the grounds are probably all pretty short. If I remember right, white is the brake apply power to the brakes.
Find the model number on the brake battery box and find a wiring diagram for it. It's pretty easy.
Find the model number on the brake battery box and find a wiring diagram for it. It's pretty easy.
Posted on 4/7/24 at 9:07 pm to GAFF
Check to see if your truck has fuses for the trailer hookup if it’s all factory installed. Most vehicles has them now days.
Posted on 4/7/24 at 9:16 pm to GAFF
I think you cut the blue wire
Or is it the red?
Or is it the red?
Posted on 4/7/24 at 9:17 pm to GAFF
quote:
only colored wire
Yikes boss
Posted on 4/7/24 at 9:50 pm to GAFF
You got a make and model to assist the sleuths?
This post was edited on 4/7/24 at 9:51 pm
Posted on 4/7/24 at 9:51 pm to GAFF
quote:
Any solutions?
Don't do what you did.
Posted on 4/7/24 at 9:58 pm to GAFF
A quick solution. Find a trailer place close, let them troubleshoot it. They have testers. Best of luck.
Posted on 4/8/24 at 6:38 am to GAFF
quote:Nice way of saying “It wasn’t my fault” without saying “It wasn’t my fault”.
Was parking it after the weekend getaway and it got caught on the tailgate. Pulled it completely out of the junction box.
Posted on 4/8/24 at 8:25 am to GAFF
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