first off what is the serial number of this unit?

secondly, out of all the skyjacks i've seen over the years i havn't seen any of the scissors with any sort of sophisticated motor control system, they have all been analog type units with the basic switches, solenoids, etc. No ECM of any sort, even the control in the platform is very basic. Unlike the direction that genie and JLG have gone with quite a few of theirs.

I'm not saying one doesn't exist but i myself have never seen one with any components requiring a diagnostic tool.

You can go to their website, paste this url (techpub.skyjack.com) into the top of the browser and then, once on that page enter the serial number of your unit into the box on the page to get it to show you the literature for your unit.