wirng problem w/ f250 7 way connector.

It occurs to me that a novice wiring up an electric brake controller is not a wise man.

I am not a novice ar wiring stuff up, but given a need to figure this out, I could do it. Having said that, there are far too many things/places to check for me to even begin to offer advice. My only advice(advise -- sheesh!) is to start at the first connection you made and check everything. My first guess is a bad connection, and my second guess is a connection to the wrong place.

As for the fuse you think you need, if you haven't got a fuse and need one, you will still have voltage at the other end of the wire. A fuse only stops voltage from going from one end of the wire to the other when the fuse has blown (opened). If you have good connections, then you should have voltage present. If you want to protect the circuit, then you put in a fuse.

The brake light has two filiments inside, one for the running lights and another for the brake/turn indicator. My guess here is that you have a bad bulb since one lighting circuit seems to work and the other does not. Try swapping the bulb to the other side of your truck and see if the symptoms follow the bulb. If the symptoms remain -- the left side bulb fails in the right side and the right side bulb works properly in the left side -- then yoiu have a wiring problem somewhere. YOU MUST DETERMINE THE STATUS OF THE BULBS BEFORE YOU MOVE ON.

Nope, sounds to me like a broken wire, or probably to. If the fuse didn't fix it when you moved it, the wire is bad. Same goes for your turn signal. Fastest way to fix that one is to run a wire from the light itself, cut the wire near the trailer plug and splice in your new wire there. As far as the other one goes, you'll probably have to find where the output of the second fuse should connect and run a new wire back from that point; simpler than trying to find the break in 20 feet of harness if you ask me.

thanks for the response. i need to clarify. the right turn signal/ tail light on my truck works -- i just cannot get juice to the 7 way connector to power the right turn/tail light on my trailer. as for the hot wire, i now have that working. seems once i placed the

2nd 30a fuse w/ a couple of relays, i have the hot feed to my 7 way. i only wish i could get the juice to my right tail light/turn signal of my trailer. the problem is probably b/w the fuse bos and the harness. vg

If it's a factory setup with trailer tow package, you'll have separate fuses for right and left and tail to the trailer plug. They will be located in the power center under the hood.