Hey Crhiel,
Welcome aboard!! :waving:
The diagnostics for the cruise control starts on page 4-61 of the Honda shop manual. If you don’t have a Honda shop manual, please PM me and I will see that you get one. But a few quick things to try in the mean time are:
There could be a vacuum leak. The actuator is run by vacuum and sometime the hoses get hard and crack. You have a line that comes off the manifold and has a “T” fitting that acting as a 1 way valve. One side goes to the actuator controller and the other to the “vacuum storage container” that is located just above your belts on the left hand side. There is a red braided line that goes from the controller to the actuator. You might as well replace the little air filter on the controller at that time too. Any bit of sponge will do.
Also, you may have dirty switches that need to be cleaned in the handlebar controls. Only 2 or 3 screws to remove from under controls and they come apart. Carefully take the switches apart and clean with an electronics cleaner and toothbrush and then lube them with silicone grease (just a little).
Some people say just spray some wd40 or contact cleaner in there without the need to take things apart but take to the time to do a proper job. You won’t have to do it again for another 15 years. If you just empty a can of cleaner in there working the switch you will HAVE to do this every year. Only the old grease gets liquefied and the switch makes a bit better contact for a while. The dust and crap NEVER gets washed out and it just grinds away the soft copper contacts. Then you will have nothing to make contact with anything.
Good Luck,
Tim.