Check Engine Light Code P0776

My question since a scan tool was hooked up and a code provided if someone could tell me if this sounds like a physical problem with the transmission or a computer problem i.e. a circuit sensor that needs replacing and based on the code what is the part that is most likely needed and how much . The transmission fluid is full not sure how dirty the fluid is as I did have my fluids checked a jiffy lube during my last oil change.