Truck won't shift out of 4WD high. on 1997 Ford F-150

Had it out in the cold for a few months, battery died, but was recharged. It started shifting out of 4wd harder a couple of times since then, but now nothing at all. What could be possible problems and solutions? Any help is extremely appreciated!

Asked by for the 1997 Ford F-150
2 answers
That thing is complicated, needs to go and be circuit tested to find the fault. Not as simple as telling you how, the issue has to be found.
try putting it in reverse and driving backwards for copuple hundred fett and as you get ready to stop put it in neutral