After shop did a motor swap, my trans started to throw P0753 and P1765 codes and now is in limp mode.

I can Put the truck in 1st and 2nd no issue, When in drive it doesn't shift thur the gears.

I have done the ECU Pin 30 grounding trick, still nothing any other Ideas

 

I wonder if they broke/pinched a wire while moving the harness around. Not sure which wire you would need to check but its not receiving voltage on the control solenoid.