It is explained in the FSM. If you don’t have one use the link below & pick the 2000 & then the ignition chapter. The procedure is on about page 15.
See online read only FSMs here:
Jeep Knowledge Base
You may have to go to the bottom of the page & pick Jeep Resources & online manuals if it directs you to home page rather than the knowledge base.
Pick your model & year then on the drop down menu pick the chapter you need.