I got an 03 Hemi QC 4X4. The "Service 4X4" light is on the dash and no LED lights on my 4X4 selector switch work. Im thinking it is the TCCM. I checked all fuses and grounds and feeds. I have no +5v power to the selector switch from the TCCM. Im gonna get a new one from the junk yard for $50. Do I have to get this reflashed or reprogrammed???

 

Does anybody know anything about the TCCM??