Re: Ac not cooling
Could it possibly be a blendoor issue? There was a TSB issued for '14 minivans for blendoor motor or controller malfunctions. I had one go out on a cargo van a few years ago, and it had the same symptoms. Also could be caused by a high-head limit switch trip. Or If the Q or K valve (not sure which they use) has some metal shavings in them, this could cause the unit to temporarily get plugged from excess pressure. Turn off the compressor (a/c off), hit a couple bumps, and the debris clears enough for flow. Don't know if that would/could throw a code...
I know this sounds like a lot of babble, but hopefully it might help. I've similar issues in a few vehicles over the years, and these were some of the culprits.
You can also verify your a/c refrigerant pressure with some kits from auto parts supply stores. If your pressure is low, it doesn't necessarily mean a leak is there, just some has leaked out over time, or was never really properly charged.