MSHappyCampers
Columbus, MS
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Joined: 04/22/2001
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Occasionally my 2010 F250 will show "Trailer Wiring Fault" on the display. I have it send a Vehicle Health Report to my e-mail and it says that this particular problem is highly likely to be in the trailer itself, not some problem with the "Tow/Haul" circuitry in the truck. When this happens I do not have any brakes on the 5er. It usually only lasts for a minute or so. Have any of you guys ever had this problem? What is there about the brake circuits in the 5er to cause it to lose all braking intermittently? Any help would be appreciated!
Joe & Annette
2002 Monaco Windsor 40PBT
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KNSMCCL
CO
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Joined: 02/02/2007
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Have had the same problem. Found the problem in the plug, female side had a loose connection.
06 Ford F-350 CC LB SRW V-10 4:30 B&W Companion, Air Bags
02 Wildcat 29RLKS
Denver, CO
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ScottG
Bothell Wa.
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Joined: 02/25/2005
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Also common to have the brake wire rub through where it runs through the axle and short to ground.
Scott, Grace and Wesly
2003 Dodge 3500 4x4, 6 speed Cummins (lightly bombed),
2004 Forest River 25RKS many, many mods.
H0NDA eu2000i
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100ton
Huntington Beach, California
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Joined: 05/08/2005
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I had a similar situation with my truck (see sig) and 5th wheel. I had just picked up the 5th wheel from storage and had driven about 150 yards when the factory brake controller started 'beeping' and displayed the message "Check Brakes" (or "Check Trailer"), I don't remember which.
Anyway, I removed and reinserted the trailer plug in my truck and the alert ceased and has not returned since. I suppose the plug was not fully making contact due to corrosion or a loose wire. I was not moving fast or far enough to determine if the trailer brakes were inoperative.
The next time I have the 5th wheel home I will check for loose wires and clean the contacts both male and female.
I have to say that it was nice to know that the controller was "paying attention."
See you out there,
Robert
Huntington Beach, California
California? Yes, I am an Occupier. I occupied a job of some sort since I was fourteen years of age and retired fifty years later. :
'05 Ford F250 Crew Cab, PSD, 4X4, Short Bed, Camper & Tow Package, Limited Slip Differential
'05 CrossRoads, Cruiser 29RK
PullRite 16K SuperGlide
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32dgrz
Iowa
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Joined: 07/06/2004
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Had same problem. Had a bad magnet
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n7bsn
Yes
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Joined: 04/11/2004
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Yup, loose connection or wire
2008 F350SD V10 with an 2012 Arctic Fox 29-5E
When someone tells you to buy the same rig they own, listen, they might be right. When they tell you to buy a different rig then they own, really pay attention, they probably know something you don't.
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arthurs family
St.Louis MO. USA.
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Joined: 09/11/2004
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I put up with the same problem for a year. I took it to a shop and they couldnt find anything wrong. i finally noticed that it only happened when my Fresh water tank had been filled. I replaced the plugand finally pulled down the driversides underskirting of the camper from the front of the camper to the rear axle and found the brake wire was grounding out on the campers frame when the fresh water tanks fill hose would have water come up and slosh in it. I spliced new wire and anywhere the frame or a cross member looked like it may come in contact with the brake wires I cut a piece of hose and zip tied it to the frame so I never have to pull that underskirting off again. Start at your plug first and check the contacts for corrosion, if thats not it then disconect one wheel or axle at a time to see if the problem stops then,if not you now where your problem lies. Good luck
2006 F350 Lariat 4X4 LB,CC,PSD
2001 F250 XLT 4X4 SB,CC,Gas Hogger
2006 Gulf Stream Canyon Trail 30FBRG
Loving wife,2 boys,1 princess, and 2 pups.
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Likes to tow
Huntington WV
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Joined: 01/13/2006
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The problems caused by the wires running through the axle is so common that I pulled mine out. They are now tie-wrapped and taped to the back side of the axle. When the grommet begins to wear out or is not positioned correctly the wires will rub and cause all kinds on intermittent issues with brakes. Also the inside of the axle can have very sharp edges which you cannot see. When having intermittent brake or controller issues I highly recommend taking the wire out of the axle and see if this corrects your problem!!
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netjam
Canadian on the road
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Joined: 08/14/2008
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I know the 2008-10 Ford IBC will often do that with electric/hydraulic brakes. If your 5er has those, that could be the problem. Ford manual warns of that too. If you have std electic trailer brakes, I'd put money on a wiring problem. Any good trailer shop should be able to fing that easily.
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Camp I am
Wisconsin
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Joined: 09/27/2005
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ScottG wrote:Also common to have the brake wire rub through where it runs through the axle and short to ground.
This is what happened on mine. I finally figured it out by disconnecting the brake wire to one axle and ran it down the road to see if the problem went away but the problem still occurred, so I reconnected that axles wire and disconnected the next axles wire and ran it.... Problem disappeared. I tugged the wire out of each end of the axle hole a few inches to see if I could see a rub but never found one, probably rubbed somewhere deeper in the axle? I then ran a wire externally outside of the axle in place of the internal one and the problem never returned.
Good luck 
Sahm I am's Husband 
2006 Chevy Silverado 3500, LT3 CC/LB 4WD SRW LBZ Duramax/Allison
Keystone Cougar 327RES
Curt Q5 20K / Prodigy Brake Control / Rotochocks / Trail Air
Rallies attended: " "
Sleepovers  3
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