How To Find And Replace TCCM 2005 Help

I have the dreded service 4WD service light and after checking the usual grounds, replacing the control switch, making sure all harness connections are good and tight and dry, I believe it's the TCCM or the encoder motor position sensor, I can't seem to find any information where the TCCM is located and how to remove it, but I'm pretty sure I can take care of the encoder motor position indicator if that's what it is, Help, Suggestions, Comments are greatly appreciated.

Thanks

Rocky

try this

One thread in most appropriate section is enough

Thank you