Jhan1uca

NEED HELP! I was driving normal then all of a sudden my car did not shift past 3rd gear and just stopped shifting gears and in “manual” mode it does not let me shift past 1st gear , I have a code p0720 speed sensor circuit but I replaced it already but code was still there. I also replaced my Tcm with a used Tcm (RE7ROTA) and worked for 1 test run then went back to not shift, I don’t know if it’s because it’s not programmed but I’ve been trying to fix this for 2 months but I don’t have a answer yet ?