Trailer brake wiring problem

[Zardoz]

I am looking for any advice or suggestions. Since I have hooked up a New 2015 Forest River Sierra 5th wheel. (43 ft with a mid -room) to my 2014 Ram 2014 2500 Diesel, I had been getting intermittent error messages stating "check brake wiring" or "wiring disconnected". The result is no trailer brakes at all...Now after having a plug receptical moved from the bumper to the bed, I'm getting no message and don't have any trailer brakes at all. Both the mail and female plugs have been replaced...still no brakes. Any suggestions? Techs at the rv world are scratchin their heads....please help? I love close to Seattle, We., if anyone can recommend a repair place, I would also appreciate this as well....

[Stank Bait]

Might not be a solution for your problem but they should be able to test the thing. If they can't take it to somebody that can. It's possible that it is under the hood in the truck. In the trailer circuit.

[Justice12t]

I'd start by checking continuity from trailer plug to trailer breaks...Then test the truck and see what you find. Sounds like bad wiring. The only other thing I can think of is the brakes need to be adjusted. Others will jump in with good knowledge... Good luck...

[Herk7769]

Sounds like a bad ground at the trailer junction box.

The ground wire from the Bargman goes to a screw into the frame of the trailer. A bad ground due to paint or rust under the screw head could cause this problem.

It could also be a bad crimp at the pigtail end (pin 1) inside the junction box to the wire that goes to the frame ground screw.

You might have been catching an intermittent ground at the hitch.

[bruceatlam]

I'll support the bad ground theory as the most likely source of the problem. Keep in mind that it will not hurt anything to add additional ground points. I have one trailer that has one long ground wire running up and down the trailer. It runs through each of the four brakes. I developed an intermittent fault much like yours. I added a ground at the far end of the loop and fixed my problem.

[SilhouettePenny]

Use a simple $5 test light from the auto parts store, then just dedicate some time to checking every wire coming into the back of the connector at the rear bumper of the truck. After verifying you have a GOOD ground, have someone operate the brake pedal and use the test light to verify operation using Herk's chart above. Parking light wires are sometimes referred to as tail markers (TM). When my plug was moved from the bumper to the bed as yours was, the technician mis-matched or cross wired two wires so look at the chart carefully and wire by function, not color code.

[Bluepill]

You can do a basic test by jumping the blue brake wire on the trailer directly to a good 12 volt battery. If it's OK that way, look on the vehicle side.

[SilverArrowPro]

I blew a fuse in my pdc on my 06 that caused the same thing.

[retiredcamper47]

You should have 2 fuse boxes on your tow vehicle - one under the hood and the other under the dash. Both fuse boxes have fuses relating to tow packages. Check both places. Your owner's manual will tell you which ones.

Bob

[RubberNail]

Before getting into too much I would go pull the breakaway brake switch plug (connected to the wire at the pin box) and reinsert it a couple of times. A tech up in Canada told me to do that when I had that problem. Did not clear my problem but turned out I had a bad breakaway switch, so he was right on the problem but short on the solution. Story too long to tell there, but 7000 miles in Canada/Alaska with no brakes on a 33' 5er was a real adventure!

[Poper]

This may sound crazy, but if it didn't happen to me just yesterday I wouldn't believe it.
Getting same readings as you on my 2015 Chev 2500 with HD Tow and factory integrated BC.. Just yesterday.
After checking everything 2x. I pulled out truck owner manual (always a last resort)
It said to un plug TT from receptacle, turn off TV wait five min start over and I be damned it reset and all was good.
Not saying this is your problem, but worked for me, and I'm still amazed at the internal workings of these complex systems....they simply talk to one another.
Try it......nothing to lose. Or consult your TV manual if you have integrated system. If not may be a moot point. Good luck..

[Canadiancrew]

Possibly just a ground problem when they moved it.

[D-maxx dave]

Had two Chevrolets (09, 12) had under hood wiring not connected from factory. Lighting worked, but no brakes.
Truck dealer set them up for me.

[Gilpalmer]

I had to cancel our vacation and spend 4 hours at the GMC dealership to find out it was a trailer break connector causing the problem. 2 more hours at my trailer brake specialist. He cut out the yellow connector at the break and reconnected each of the wires and shrink wrapped them. Problem solved. Cost was one vacation cut short with our grand daughter and around $400.00 out of pocket. This is a new 2016 36ckts Cedar Creek. Too much trouble getting it back to dealer from our vacation location so I opted to pay on my own. Dealer and factory authorizations can shorten your life on earth. Not worth it.

[AURORASTEVE]

I had something similar happen and after many hours of scratching my head found that the brake wires went from one side of the trailer to the other inside the axle. All the bouncing around from the travels wore the insulation off from rubbing on the rough inside of the axle. Replacing the wires and running them outside solved the problem. Just a wild thought.

[Riverdude]

1Z1A3E070300405761

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[Herk7769]

Originally Posted by Riverdude

1Z1A3E070300405761

Sent from my SM-G900V using Tapatalk

Your package was delivered on Tuesday.
They left it by your side door...

[Davis_Family]

I had a problem very similar to this! Turns out the brake controller I had installed wasn't strong enough to pick up the LED signals from my truck and trailer to the controller. We ordered a different brake controller that was for LED trucks and trailers and problem solved!


Cody
2016 Cherokee 264L
2015 Ram 1500 Lonestar 4x4

[retiredcamper47]

Had brakes, no problem. Then out of the blue I had no brakes on the tt. Got the message on my dash stating "Wiring Fault In Trailer". Tested brake pin on truck and had 12v. Activated brake pin on tt and brakes worked. Long story short, the truck brake pin and the tt brake pin were not making contact when plugged together. Realigned the pins and now have brakes. Also no more wiring fault messages. Hope this helps.

Bob