Compression Ignition Addict
Join Date: Nov 2009
Location: Groveport, Ohio
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If your trailer brake panel is beeping and saying trailer fault when there is NO trailer hooked up, then you have a short in the plug or wires or the trailer brake controller is bad.
Sounds like it's keeping your trailer brakes engaged when it's hooked up to them, and sounds to me like a wiring short. I'd start at the plug and work your way back, there should be no activity on the trailer brake power wire if there is no trailer hooked up, but sounds like you have some.
Probably best to take it to a trailer/rv shop to be honest, as you could be chasing wires all day and waste a lot of time.
2010 Ford F250 XLT ; 5" Diamond Eye DP Back ; 2" Rough Country Leveling Kit ; 18x9 XD Hoss's wrapped in 33 Mastercraft AXT's ; 4" Top Gun Customz Blocks ; SCT Livewire w/ Gearhead Custom Tunes : AFE Stage 2 CAI