I have a 2000 Durango Sport. I have had it for several years and it has been great. Anyway I drove it the other day and parked it, no problem. I went to drive it a couple days later and the service 4X4 light was on. I haven't used the 4 wheel drive since probably Feb. of this year. My wife drives it occasionally to work which is 10 min. away. We have a automatic 4X4 with the switch on the dash. Now could this be a bad fuse or a bad censor? I say this because the security light came on at the same time the 4X4 light did. It still runs great, but I don't want to tear something major up on it