My trailer brakes didnt work today when I hooked up to the trailer. I pull this trailer almost everyday and they have been working fine until today. I have checked the fuse. The blinkers work fine on the trailer. I opened the 7 way connector and the wire is still connected. Cleaned the terminals. Disconnected and reconnected the brake controller and still nothing. I dont know where to go from here, what to test how to test it?

 

When I had that problem it was one of the ground wires on the brakes themselves. Did your brake controller in the truck light up like normal?

 

No there is only 1 led and it only lights up if the system is working properly (from what I am told)

 

I was wondering if there was a way to test it with a multimeter.

 

I just used a piece of wire & jumped from the brake pin to ground on the truck plug. the light lit on the controller telling me the brakes on the trailer end was open (not grounded). I found the wire broken where it attached to the frame of the trailer in the area of the axles.

 

I checked the truck side connecter. Brake pin to ground and got nothing on the multimeter, but I dont know if I am supposed to without pushing the brakes. I didnt really understand what you were saying. Did you have the trailer plugged in when you did this?

 

Never mind just read it again for the 5th time and figured it out, I will try that

 

Each magnet on your trl brakes has 2 wires 1 hot 1 grnd. If ether is broken the light will not be lit on the controller. I think you could use the multimeter on the trl plug on the brake pin & ground there should be some resistance (ohms) if you get no reading it's open.

 

Thanks for the help. Although I wasnt able to figure it out doing it that way. I was able to use the idea at the brake controller to eliminate it as the problem. Then I went back to the truck side trailer connection. I disconected it on the back side and cleaned one of the terminals and sprayed wd 40 in there. Plugged it back in and it worked! "Reps" coming

 

Good deal man, sh-t happens...lol