I took my Jeep out the other day in the mud, nothing crazy or hard. I had it in 4WD and when I got off the dirt road I put it back into 2WD. The light on the dash was on so I'm assuming it was working fine when I put it back to 2WD. Today I went back out and I went to put it into 4WD and the sensor on the dash didn't light up, besides that I don't really know how to tell if it's in it or not. It doesn't make any weird noises when I try and change it. This is my first jeep and I just bought it about 2 months ago so I'm no mechanic on it. I did pop the hood to see if I saw any cables broken or anything because I don't know what I'm looking for. I saw a few cables in the same area that were not connected to anything, I don't know if that has anything to do with it but I took pics of them because I don't know what they are..