06 Ally shift range inhibited

[RedneckBuckeye]

My 06 with 119k om the clock has had some shift inhibited odes lately, first time was after it had set for almost a month, then it has done it more as the weather gotten cold. The only code it shows on my ppe is 0700. Once I reset codes it runs great. Trans has never been limped form hammering on it. Has had a transgo jr since 1600 miles. Run the ppe level 4, but don't beat on my truck, it has had an easy life. What am I looking at?

 

[tanman_2006]

Maybe the shift cable is sticking.

Mine would do that if I got a stick or mud jammed in mine.

 

[THEFERMANATOR]

You really need to get a better scanner. The p0700 code means there is a code in the tcm, but many scanners cannot read the allison tcm. But make sure the fluid level is correct. Shift range ingibited on a 6 speed can easily be caused by a loss of prime where it doesn't build pressure within 30 seconds. But really need the trans codes to go any furthur. If it was an early truck I would say nsbu, but that doesn't apply to 6 speeds, so without codes its all a shot in the dark.