Odd 7 to 4 wiring problem
I've recently installed a brake controller on my RV as I'd planned to tow a trailer. I have confirmed it's working with a 7 pin LED tester. Now I'm flat towing a car and I just want marker/brake l...
Forum Discussion
I think this issue is with the lights, if the tester says the plug output is good. What are you using for lights on the toad? Stand alone markers? I would confirm the work on another vehicle first, and if they still don't work return them. If you cant return them, you'll need to check how they are wired.
