I have the electronic shift transfer case on my 05 dodge. I was driving my truck today and I noticed the green light next to the 2wd setting was blinking instead of being steady (constantly) on . Then, while driving the truck later today, the "serv 4WD" light came on the dash. Now the red light is blinking on the 4WD setting. Also, I do not think the transfer case is switching to 4WD. Any help? Thank you.