Originally Posted by solo25
So I don't need to replace the mode actuator, right? That is not what is sending the trouble codes, I'm guessing.
That is not a common failure part, however, I would need to trouble-shoot your issue with a Tech II in order to say that it is definitely not the problem. With that said, if your R-134a levels are exactly where they should be, I would tell you to double-check EVERYTHING that I posted in post #8. Read it again.
Another thing, have you done any work to your HVAC unit?