Have a 2002 century have replaced all the bulbs and when you break they all go out you understand that a switch has gone out how do you relace it?

To replace a faulty switch in a 2002 Century, first disconnect the car battery to ensure safety. Remove the switch cover and the screws securing the switch to the vehicle. Disconnect the wiring harness from the switch, then replace it with a new one by reconnecting the harness and securing the switch back in place. Finally, reattach the cover, reconnect the battery, and test the new switch to ensure it functions correctly.