TCC solenoid, code P0741?

Here is what is said about the code:

Code P0741 indicates a problem with the TCC system, specifically that there is an insufficient or excessive amount of hydraulic pressure in the system.

I would make sure the transmission is full of fluid, also there is a filter on the side of the transmission that I would change which can cause low pressure as well. Here is how you can change the fluid out with the filter in the images below. If that doesn't help you may need a rebuilt valve body, or the fluid pump is going out. Please let us know what happens.