No brakes after brakeaway pulled

Big thanks to @jesstalkn for suggestions on fixing my brakes today. I recently installed a new breakaway switch and wanted to try it out today to verify it was working. After pulling it and installing the pin back in, I got an error on the dash of my 2015 GMC saying "service trailer brakes". I just dismissed the error because I've gotten errors before and they never really meant anything. Upon hooking up and going to leave the park in Kansas City I immediately noticed the lack of stopping power. I checked the pin and it was in, unplugged and re-plugged the 7 pin connector, re-started the truck and nothing fixed it. I had lights and power to the trailer, just no brakes. After checking everything I could think I of I started (slowly) on my way home and reached out to Jarrod. He suggested checking the power from the truck at my next stop out of the 7 pin to see if it was delivering power to the brakes. I used one of the extra led strips I have for the cabinets (another Jarrod inspired project) and sure enough no power. He told me to try and unplug the negative on the both truck batteries for a couple minutes to reset the truck systems. Voila! I had brakes again.

Just in case any of you experience this issue, simple solution I never would have thought of. I was already sure it was the new breakaway switch and I needed to replace it again. Glad to have people on this forum to help rookies figure out the problems.

Thanks,
Nick

Nick glad I could help. That has fixed a lot of electrical problems over the years.
Glad you we're successful in getting your brakes back in service again. Stops slot better when they work.

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Our first trip out with our Prowler last year, I forgot to unhook the breakaway cable and popped it.

Ooppsseeyy!!!!!

Anyway, I pushed it back in right away, but when we were leaving the campground I got an error message on the dash of my 2015 Chevy 2500HD.

My brakes were engaged, however . . .

I screwed around with it for a half an hour and couldn't clear the message . . .

As I recall, what finally cleared the error message was to pull out the breakaway while the motor was running, then I shut the truck motor off and plugged the breakaway back in, then waited a couple of minutes . . . and when I started the truck again the error code went away!

I just bought a 2011 Elkridge last month. Taking it home, everything worked. Two days ago I hitched up because of noticing some hitch noises. No matter, I still had no brakes to the trailer. No error messages and nothing worked by increasing the setting on the factory brake controller on my 2016 Silverado. Think I will check the power at the 7 pin and then disconnect the negative.

Make sure all the fuses are in place in the under hood fuse/relay center.