I purchased a six pin adapter for the factory 7 pin plug on the Excursion. When I plug the trailer in (2 horse bumper pull) the brakes lock up (trailer). I do not have a brake controller in the truck. Is this normal behavior (since I don't have a controller) or do I need to look for a wiring problem. I used a flat-four adapter and obviously the brakes unlocked. I borrowed the trailer for the weekend horse show, but want to understand what's going on. Thanks in advance.
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Proud American
01 4WD PSD Ex - EBM2 - Autometer's on the A, Mag-Hytec Tran Pan, Front Hitch, Dome Light Override, TTM, CCV Re-route, Coolant Filter, Hellwig Bar, Walker BTM, BTS Trans, DP-Tuner, BIG SMILE!
I had that problem on a customers trailer a couple years ago. Never figured it out, and had to haul boat and trailer to Key West from NH.
Ended up going without the brakes!
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1996 F-250 extended cab long box five speed. Home made Tymar, 203 Stat, 60 gal in bed fuel cell, 315/75's, no muffler, ebpv welded open 3" to 3" DP, Babies. 290K, still chugging, and still smoking when cold.
UPDATED 8/1/08 Replace so far. 1 LUK flywheel+clutch, 2 thermostats, 2 set of brakes, 1 set of calipers, 5 CPS, 3 sets of tires, 2 Transfer pumps, 1 Injector modual, 1 Computer, 2 Alt, 2 sets of batteries, 1 Water pump, 6 Belts, 1 PS hose, 2 Sets ball joints, 2 set u-joints, 2 carrier bearing, 2 Speed sensors, 1 oil pres sender, 1 temp sender, 4 sets of e-break cables, 1 front fuel tank, 2 rear fuel tanks, 2 set of glow plugs, 6 Glow plug relays, Oil galley o-rings, Turbo pedistal o-rings, EBPV o-rings, 3 sets of Injector O-rings, 1 Vac-pump, 1 new carpet.Total $$$ in repairs v/s miles driven = 3.0 cents per mile. Add fuel to that it jumps to 14.8 cents per mile over the life of the truck.
Found the 'problem'. Apparently (according to Trailer Wiring Diagram For 4 way, 6 way and 7 way circuits ) the 12V hot and Brake lines can be reversed. So there is no single standard for the pin-outs on a six pin (well - close). Turns out the adapter I have has a quick change pinning for those two pins as well - not quite plug and play. Issue understood and fixed. Thanks guys.
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Proud American
01 4WD PSD Ex - EBM2 - Autometer's on the A, Mag-Hytec Tran Pan, Front Hitch, Dome Light Override, TTM, CCV Re-route, Coolant Filter, Hellwig Bar, Walker BTM, BTS Trans, DP-Tuner, BIG SMILE!
Found the 'problem'. Apparently (according to Trailer Wiring Diagram For 4 way, 6 way and 7 way circuits ) the 12V hot and Brake lines can be reversed. So there is no single standard for the pin-outs on a six pin (well - close). Turns out the adapter I have has a quick change pinning for those two pins as well - not quite plug and play. Issue understood and fixed. Thanks guys.
there is a standard way to wire all the different pin connectors--but not everyone follows it--i had the same problem when i worked at the garage--people switching trailers with other farmers!!!!!!!!!!!!!!! got most of them wired correctly before i left that d$%^ place!!!!!!
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94 f250 idi turbo sc e4od alum fac rims 149,289 --dana 60 frt with posi--10.25 rear w/posi--shouldnt get stuck!! ats turbo 3" parts on--what a diff from stock turbo!!!!!--- also 96 F250 with 305,000 is fixed!!-- 7.3 rattler-also 85 6.9-needs new engine!! tired!!
No kidding on that one! 4 of us in my neighborhood borrow/trailers on a regular basis. One of us had a different wiring pattern. Finally stayed organized enough at my place tht we "borrowed" all 3 of his trailers and pickups over a short period and wiried them to match the rest of the neighborhood. The wife would get unsettled if she had to turn on the headlights and the trailer brakes set!!
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