Glad your step is working for you now. Perhaps there was a bad connection in the 4 pin connector that you cycled (assume you have the controller model)? The Kwikee Step (Lippert) PDF troubleshooting info can be found on hyperlink (or search via Google for it if the link wont work):
https://www.google.ca/url?sa=t&rct=j...fx53Dz9BcjXlwg
About halfway through the PDF document is some good info on the step wiring with controller and trouble shooting the wiring.
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