cruise control

The cruise on my 99 suburban quit working today. It worked this morning on my way to where I was going but on the way home, nothing. I checked the fuse and it is good. Any ideas on where to look next?

Thanks

just back from a 500 mile trip with no cruise. Any ideas yet? Do I just take it to the dealer???

Thanks.

just back from a 500 mile trip with no cruise. Any ideas yet? Do I just take it to the dealer???

Thanks.

Lot of Computerized. If you do not have a good scanner and a good repair manual and volt/ohm meter.
A good repair shop or dealer.
Is speedometer and brake lights and all fuses good?
Any check engine or ABS lights on?
MT