03 Intrepid Transmission

[pir2]

This may belong in vehicle help but I will put it here.
It is a Chrysler Intrepid, 2003  with 3.5l and 4 spd auto
207000 km
I get an error code of P0700 which is malfunctioning transmission and when I checked the trans codes I got a 1776 code which is locked in low/reverse.
Does any one know the fix for this?  I am leaning toward the solenoid pack but don't want to just throw money at it
Thanks

[DODGEBOYS]

l posted the info on RCC

[pir2]

Excellent Got it
Thanks