The 2000 Lincoln does have a fuse that controls the cruise control. The cruise control fuse can be found in the fuse box.
It could Did your cruise control stop working also
heater Control valve for 2002 Lincoln Ls
The cruise control on a 2001 Lincoln LS may not work due to several common issues, such as a blown fuse, a malfunctioning brake pedal switch, or a problem with the cruise control module itself. Additionally, if there are any engine performance issues or if the vehicle is in a low-speed or low-gear condition, the cruise control may be disabled for safety reasons. It's advisable to check these components or consult a mechanic for a thorough diagnosis.
Most likely it a broken or malfunctioning clock spring in your steering column
Most newer lincolns have the servo located in the left front wheel well behind the splash shield
In the transmission
P1565-Speed Control System Concern for a 00 Lincoln LS V6? where is located?
How to program the sunvisor remote control for a garage on ls lincon
It depends on the trim level. The LS does not, but everything from the 1LT up does.
PCM ( Powertrain Control Module )
Yes!