I have a 1997 F-250 Heavy Duty. Just bought it last week.

Trying to hook up the 7 blade trailer wiring. There is a Voyager brake controller already installed. Seems to be wired in correctly as per their website.
I pulled the old connector off as it was all corroded and wouldn't read power anywhere... Installed a new one from napa using this diagram:


I think I have it all hooked in correctly BUT!

Q#1. I am getting full time power to the BLUE prong is this right

Q#2. AND when I hit my BRAKE OR Right Blinker I get power to the GREEN prong.

There is NO left blinker working at the 7-connector at all.

The truck blinkers work fine on their own, as do all lights on the truck.... something is mis-wired from the brake using the right blinker can you help me find it?

 

I work on tractor trailers.. I guess its close.

You should get power to the Blue brake controller cause well, thats your trailer plug so it makes sense, unless you unhook it. No worries.

Brake and right turn is Green. Remember it as gReen--the R means right.
yeLLow and L for left.. sounds like it isnt hooked up or its hooked up wrong. Check it.

Anything else?

What do you mean at the 7 connector? Circuit 7, As in the reverse lights? Thats purple. To be honest you probably dont need it cause most trailers do not have reverse lights but if you feel better connecting it, there ya go.

 

Sounds messed up.

Trailer Wiring Diagrams | etrailer.com

Somewhere on your truck someone's probably installed a trailer light control unit (different from the brake controller) and it may have gone bad.

OR, the connector's just hacked directly into your vehicle's wiring, and the guy did it wrong but never noticed 'cause he wired up his trailer the exact same way.

In either case, trace wires back from the connector into the vehicle and see what you find.

You may find a powered module like one of these: Wiring Powered System | etrailer.com

 

For testing the blue wire/brake controller:

Trailer Brake Controller Wire Testing Video | etrailer.com

 

Thats where I got the diagram I used... from your same link.
Judging from the 200 other things I have had to fix, I am guessing he hacked into the vehicle wiring when he installed the brake controller.... maybe pulled power from the turn signal???

 

There is a Voyager brake controller already installed. Seems to be wired in correctly as per their website.

Factory wired for trailer brakes and controller? used adapter harness for "plug and play" connected under center of dash? Or completely hand wired by someone adding the system?

Q#1. I am getting full time power to the BLUE prong is this right

No not full time, only when you hit the brakes. Trailer brakes would be on all the time, you don't want that.


Q#2. AND when I hit my BRAKE OR Right Blinker I get power to the GREEN prong.

There is NO left blinker working at the 7-connector at all.

For those two, follow the wires up the truck, look for a spot someone made a splice or repair. They have some wires crossed/disconnected in some way.

Hows the other pins? you didn't state the others so assume they are wired correct and working?

 

Now we're getting somewhere.
So there is NOT supposed to be power to blue then ALL the time.... starting there. next.
But no matter what I do, there is still brake power AND Right blinker power going to the small green one out the back...

 

I jumped the gun just a tad, what model voyager exactly (digital controller?) and when you say you get full time power to the BLUE prong how much power exactly, how much power in volts?

Just 2 or 4 volts for example? or the full battery voltage 12+ volts?

What is the gain set at on the controller? just low? somewhere midway? or jacked up high?

 

I'm thinking that there will be voltage on the brake output wire from the voyager due to the way it senses when the trailer is plugged in (I remember reading this somewhere). That's not to say it still isn't wired properly, but don't jump to that conclusion just because there is voltage on the line.

 

Yes after I thinking on it more I knew my new trailer, more to the point its brake controller monitors the system, the old one before it did not.
The old one was just a simple either "on or off" type deal, nothing digital/fancy about it and its gain function made little to no difference in the braking effort applied. In fact it worked so poorly, tended to grab and try and skid at low speeds and did little to nothing at higher speeds more then anything else so I stopped using it and took it out. That trailer was really to small/light to need it anyway.

 

The brake contriller is this model....
Tekonsha Voyager Electric Brake Control

So far as I can tell, the wiring harness is complete and intact all the way back up the frame and thru the firewall. Still in the thick sewerline hosing and untampered with.

I did just replace brake light bulbs, remembering what havok a little extra resistance reeked on my old 68 Ford... no help.

The green wire coming from the truck out near the bumper is really black and oxidized, my suspicion is that the Brake/Right blinker has been sharing power somewhere for quite some time.

Maybe we forget all about the trailer connection and just focus on how or where could this be taking place?

After watching that controller video and testing out my own, I am suspecting that my controller is always on... stuck that way.... when I first plugged it in to the trailer the green light magically came on..... then if I hit the right blinker the brake controller would blink green-to-red-to-off as the blinker clicked! If I manually worked the voyager, my blinker would slow and stay lit, not blinking at all! weird!
I did try all tests locally and at the rear of the truck with the gain and levels low-med-high and maually pulled... no differences on the mutlimeter at all. . . full power always on.

 

Maybe we forget all about the trailer connection and just focus on how or where could this be taking place?


Not real clear now exactly what the problem is, so the lights all work right until you plug in that brake controller?

If that is the case the one thing I'd check is where the red wire "stoplight" is connected to the the trucks brake light wiring. Its really the only one that could have any effect on the trucks turn/stop lights.

 

Awesome, Where can I find that little guy?

 

See here,

http://www.anythingtruck.com/instruc...structions.pdf

However if it is factory tow package, its going to be connected to the correct location unless someone changed something for some reason.

There is also a small chance there is a problem with the controller itself, but hard to say with the info given so far.

 

Thanks guys so much!
I got it all wired in and fixed today!
Time to go camping!!!!!