No brakes after umbilical problems fixed

[Steve Bryant]

CA Tallguy,
1. Do all of your other lights work properly on the trailer? If they do, that says that you have a good solid ground and the positive wires to the lights are fine.

2. When you are reading from positive to the brake light circuit, that just says that you have a 0.2 Volt differential between the brake controller output and the positive battery terminal. If you unplug the trailer from the tow vehicle and probe the connector on the tow vehicle, do you get a reading of about 12 volts? I suspect that the answer will be yes.

3. Check the trailer. I suspect that the trailer wiring is where the problem lies. You need to unplug the trailer from the tow vehicle and disconnect the battery and use your ohm meter to determine where the wire is open between the plug (umbilical cord connector) and the brakes themselves.

I hope that this helps.

Steve

[Steve Bryant]

CA Tallguy,
I've re-read your posts more carefully and it appears that you may have fixed the problem.

Steve

[CA_Tallguy]

Thanks Steve - yes the problem was a bad ground connection on the brake line. There was a loose splice inside the wall but thankfully I figured it out without having to go in there.

[CA_Tallguy]

Originally Posted by Steve Bryant

CA Tallguy,
I've re-read your posts more carefully and it appears that you may have fixed the problem.

Steve

It's all good - your insight could help someone else coming across this thread later.

[Steve Bryant]

CA Tallguy, I'm glad to help. I've learned a lot from others on this forum and I enjoy trying to help others! Enjoy your new trailer and keep posting on the forum!

Steve