2000 XPLORER 250. i finally got the new hilliard clutch and the new plates in and i had the awd working for a few minutes. it was the first time i ever saw the awd light work on the switch. all of a sudden the light went out and awd stopped working. not sure if the battery charge is important but it was reading 12.50v. used atf in the hubs. any guesstamates???