01 sable 3 probs

1.) The intermittent wipers don't work, wipers work fine on lo and hi, but if I don't turn them off at the right time in the cycle they just stop where they are and don't return to rest position. When in Intermiitent mode they start up, stop, and sit there for a while before cycling again. sometimes it's several minutes.

2.) The cruise control buttons have stopped working. Earlier this spring the cruise worked once in a while but would shut off suddenly. I tried spraying with contact cleaner behind the buttons, now it won't come on at all.

3.) Idle is erratic at times. a/c seems to make no idfference to this problem. it'll idle fine then drop to around 500 then surge back up to 1k them settle for a while and repeat over and over. Sometime it doesn't do this at all. very confusing.

the wiper/cruise problem is probably a problem with the Multifunction Switch

Thanks, I'll check it out.