I plugged in the device and pressed search, and it came up: DTC 97; 2005 Toyota Prius

Question

Check engine light on. My info lcd display was off, ck eng light on, a/c impaired operation.
Toyota said I have a sticky coolant flow valve, and a new display. Next day my light was off, my display was working, ad my ac is still impaired. I check the a/c pressure and it reads good.

I brought it in to Toyota, (I neglected to inq about a/c) the display was important and I really though the car just needed a recharge. (This is Florida, you notice when the ac doesn't work properly. They should have noticed when they turned the car on.)