Rostra Cruise control
I tried wiring up the Rostra cruise control in my 2014 promaster high top. I followed the instructions. Its plug and play except for the ignition wire that needs to be soldered. When i tried a test drive and the van went into limp mode it said something like hill mode or something. The only thing that i can think of is the throtle t plug. I can see how the new wire plug with the red slide lock goes on but was wondering if i can plug the original plug into the "splice" plug in wrong as i can plug it in either way. Anybody have any experience with thiese after market cruise controls?