My 4x4 has been out for a while and I recently swapped TCCM with one from the wreckers ~No avail. I am not with the beloved beast at the moment as I was called out of town to work. I have been told that I may need to reprogram TCCM (other armchair quarterbacks argue this) Trouble is not having a trustworthy mechanic with a Tech 2 scanner.
I am in Edmonton, Alta. So far my only option found is to get a Tech 2 off Amazon to the tune of about $500 Cdn, all in. I already took it to the shop and for $120. was told to replace the actuator (done that ) and "flash" will cost another $700 with no guarantee that will solve the problem. These places have you by the short and curlies if you don't have the right tools. I replace all of my own junk so I might as well get a scanner as well. F'n technology
I will update once I have resolved the issue ~best of luck and keep us in the loop if you resolve without the scanner.