2003 Exp Cruise control not working you check fuse its good is there any other thing you can check?

2003 Exp Cruise control not working you check fuse its good is there any other thing you can check?
if it is a explorer or a expedition from Ford I would ck the deactivation switch on the master cyliner and see if it is leaking brake fluid if it is then replace and cruise will work again !!! Timberland Ford Florida Service Manager !!