P CODES (POWERTRAIN) P1700 - P1799 P1701 Questions

Have Two Codes P1701 And P0826 Come Up On A Transmission Company Code Checker And They Diagnosed It As Needing A New Transmission. They Say...

I Pulled From The Computer And Am Unable To Clear It. It Showed Most Common Problem Is The Tps. With The Old Tps While Driving The Car At...