Transmission- no overdrive solenoid "e" code

[Canucktony]

Hello gents!
This is a question for you transmission guys out there lol.
2 days ago I lost over drive.
Everything else is shifting fine.
I have an edge insight and gave me codes;

P0770- Shift Solenoid "E" malfunction

P0985-Shift Solenoid "E" Control Circuit Low

So my question is.... Shift solenoid E in any diagram I find is for Low/reverse.

Why would I have no overdrive but have reverse?
What do you guys suggest? Replace the solenoid /fluid change?
The fluid looks fine and is at the right level.

Thanks Gents!!!
Cheers
Tony