I can't figure out why my electronic shift 4X4 blinks and never goes solid or switches into anything, but 2....I've checked the fuse and it's fine. What could it be? Thanks

 

Welcome! I will start by saying that the search feature works. There are many, Many threads on 4wd issues and most link to the appropriate threads with info/suggestions on getting your 4wd system working again.

Diagnosis depends on your 4wd system. If you have Auto4wd and the 'Service 4wd' light is on, you'll need a Tech2 or equivalent scan tool to communicate with the TCCM. If you do not have Auto4wd, have a look at the DIY article...