Hi Pizzaguy. By way of an update, I gave up trying to figure out the brake controller outputs and so just ran a new wire to the brake relay from the brake switch. It works fine and maybe one day I will return to trying to figure out the controller. However I must have dislodged something, possibly in the illumination module, and now the dash lights, radio lights and turn signals don’t come on 🙄

Any ideas? I searched the forum to no avail.

Thanks for all of your help so far…