With the old style Kwikee step controller you opened the door - the step extended and then you turned off the switch and the step remained extended.
With the new style Kwikee step controller the door will always follow the door position when the switch is "off" - when the switch is "on" the step will extend once when the door is opened and remain extended. The ignition switch will energize an override in the controller and close the step when the door switch is "on" and the door is closed.
Here is the Kiwkee pdf which explains door operation.
http://www.kwikee.com/PDFDocuments/9...ationGuide.pdf
Hope this helps.