I drive a 2000 Civic Si (Canadian, ej8 with a d16y8) and my cruise control no longer works. The cruise button will light up and when I press SET on the steering wheel the light does come up on the dash. It will hold my speed for 5 or 6 seconds and then cut out. The light on the dash goes out, the cruise button stays lit, and my set or resume buttons no longer do anything.

I've checked the fuse and the vacuum lines, both good. Wiring all looks good as well.

Any ideas for fixing?!?