That is actually how you'd do it. You have a relay that connects Pot HI with Pot wiper.Thanks, but I have the hpevs manuals and they show how to do this, but the input they use is not enabled in the Curtis vcl. I was thinking I could just put the a relay in and use the contacts between the brake wiper input and the hi or low for the brake pot. I have a brake switch and not a pot...