help with brake controller

[lrazer]

I got a few questions heres the situation
I just got an '02 f250 and it had no owners manual and im wiring up a brake controller. Now I have the brake controller wired up and plugged in under the dash. But when I hook up the trailer it displays n/c (no connection)

On my 99 it had the brake controller kit with it that has the harness for under the dash and the 2 relays and 2 maxi fuses that go in the power distribution box under the hood. But I cant find any power distribution box under the hood and I have no owners manual.

On the 99 the power distribution box is next to the master cylinder, and the one under the dash is smaller. Is it just all one box under the dash on the 02?

[strokin_early_99]

Yes, it is all under the dash.


However of up get N/C that means it has power so the relay and/or fuse it not the issue. I would test the plug with a test light to see if it is hooked up right.

[lrazer]

yea i was thinkin the same thing, it would be just the trailer brake wire that would have the issue right?

[strokin_early_99]

When you plug in the trailer, could you move the trailer? I know some people swap the live 12V line and the brake line, at least I have had to swap a few in my day.

Otherwise, it would only be the brake wire.

[lrazer]

no i didnt try i was gonna pull the one outta my 99 and make sure all the wires are right, i couldnt get the kit from ford so i got an adapter harness from autozone and just cut off the connector end for their cheapo controller and wired it to the prodigy one. but i didnt check the wires just wired red, white, blue, and black together

[NCHornet]

That could be your problem. I never recommend splicing in controllers this way. The Plug for your truck can be bought for $10 and then you know you have good connections. I would take a test light to the rear plug and see where and where you aren't getting power. Is the trailer plug really corroded? Maybe some dielectric grease would be in order?
NCH

[lrazer]

thanks for the help guys its workin now i pulled it back out and checked everything and i did wire it right and its working. i dont know why it wasnt yesterday, maybe it just wasnt fully connected under the dash