4WD Service Light
 

Shortly after trying to engage into Auto 4WD I can hear the TCCM click and then I get the 4WD Service Light on my dash.
I have to turn off the engine to disengage and return to 2 HI

No issue in 2 HI or 4 HI.

Took it in to check the code and it came back as the speed sensor. C0305?
Tried a new one with out change along with testing with a new TCCM.

Any advice what to check next?