alcohenusa
Well-Known Member
Borrowed one of these….How were you testing this without a trailer?
I installed mine, and don't have a trailer to test with -- I get no lights, unless I double click on the knob, which brings about the pulsing blue glow you were referring to. I can't get it to do anything else.
https://www.amazon.com/Electric-Dyn...brake+controller+tester&qid=1632091330&sr=8-2
It makes the truck think there is a trailer attached. If you are getting the pulsing blue light, in all likelihood you are good to go.
Sponsored