2000 dodge caravan after engin has been turned off radeator fan continue's to run and won't shut off and run's battery dead

You probably have a bad relay 9burned out) that has overheated and fused terminals-under the hood in the power center box, it should be marked-pull it to stop the fan, and you can probably use another less needed relay to get you buy until you get another. The fan is probably drawing too much power, however and will need to be checked for load to see if it is spec or you will continue to have this problem.