Trailer abs light woes

Hey fellas! Hopefully everyone is staying warm with this freezing weather! I really need some help on a used trailer I just purchased!!

so, I have a 2017 cascadia , and just purchased a 2016 Dorsey flatbed. Well, with ignition on the light cycles like normal. When driving my trailer abs light comes on every time I hit the brakes. Also, it blows fuse “14 I believe. Trailer abs ignition on my truck.

I’ve taken the trailer to two shops. First shop had it two weeks and said nothings wrong with it.

second shop had it a few days and fixed some wires that were shorted. I went to pick up the trailer, and it had the same issue. They had it another day, and then said it was done. The trailer had a bad relay.

I dropped the trailer off a few miles down the road and it worked fine.


Now I’m going to pick up a load and have the same issue. I did just put in a new abs valve because the old one was leaking.

Is there anything I can check or do before I take it to a shop for the fourth time?

 

Abs light on dash comes on every time I hit the brakes. It’s a bendix unit.

 

Yes sir, I’m becoming familiar with it unfortunately lol. Electrical issues are not my strong suit haha

 

I’m not sure I can start the blink codes. When I press my brakes I blow the abs ignition fuse. Ugh

 

I don’t think it’s the plug, I was pulling a different trailer earlier this week with no problems with abs

 

First shop was a local shop. They hooked up the diagnostic equipment and said everything was working properly.

second shop was a really well reviewed local shop. Not a Dorsey shop.