Would help to know year, make and model of your RV. If you can also the make and model of the electric step.
The Forest River group of companies uses a lot of Lippert parts and Lippert has an online "university" that offers free training webinars on a lot of their systems. I have taken all that apply to my Windjammer 3008W and keep looking at the site because they add modules quite often.
CLICK HERE to go to the web site for Lippert Technical Institute - there is a LOT of good information there.
Dave / Believer45