Plus 2 on this and It make sense the cruise control is not working which is a good thing as confirms what to look for. It depends on which system you have but head over to
http://www.wk2jeeps.com/wk2_cruise_control.htm
And whilst a heavy read, is enough for you to fault find as will most likely be one sensor, however it could also be a brake sensor. This should assist hopefully given retraced only the affected wires. They may look okay but if stressed, then no contact. Standard test meter to the rescue. Because it’s stored, The bugger will need resetting and the part I am unsure of is you may de plug and plug and fix the issue and not know it. So lots of checking can lead to nowhere. Better of saying this now so you can asses when to get it reset. If you do ask for the code so you can I’d which sensor was at fault