I got the diagnostic test done on it and the code that came up was P0958 and I searched what that code stood for and it said auto shift manual mode circuit high. Repair Information for P0955 code. Learn what does P0955 Auto Shift Manual Mode Circuit means? OBD-ll Code Description. OBD-ll P0956 Auto Shift Manual Mode Circuit Range/Performance. What the P0956 code means. Symptoms of the P0956 code. For the manual mode, when the selector lever is operated to the right side from the state where the shift position is in D, the TCM detects that the D position 9 Dec 2018 P0958: Auto Shift Manual Mode Circuit High OBD-II Trouble Code. The manual shifting function provided by the +/- | up/down gate on your P0955 - Generic. Type, Powertrain - Transmission - ISO/SAE Controlled. Description. Auto Shift Manual Mode Circuit. Try also: https://www.obd-codes.com/ 9 Dec 2018 P0955: Auto Shift Manual Mode Circuit OBD-II Trouble Code In order to shift an automatic transmission like a manual, a switch connected to the gear lever has to send an electrical signal to the TCM every time you push the shifter in the +/- direction. This tells a sensor on the valve body which gear you would like to engage. P0958 OBD-II: Auto Shift Manual Mode Circuit High Some vehicles equipped with automatic transmission will give the driver the option of selecting the desired gear while driving, known as Autostick Shifting. The shifter will usually either have a + ahd - button on it, or shift side to side when in Drive.