CivicInUse22

So I was diagnosing my not functioning CC system the other day through the Honda Service Manual and didn't get too far because the clutch switch is almost impossible to get to and test so I left it and drove the car and MAGICALLY the idle was perfect again. (Ran really rough at idle once warm ie. 250rpms). I noticed I had left the cruise control unit connector unplugged(14p connector) and now it idles fine. So what's up with that? Restriction in the system? Bad actuator? All I got to test was the continuity in the cruise control unit connector and got one bad piece which I believe was for the clutch switch. Any Ideas folks?