OBD2 bluetooth scanner caused Check Engine light and Check Hybrid System fault message?

I'm shopping for a used Prius to replace our 2010 which was in a collision recently. I looked at a used 2010 with 220k miles yesterday, and used the Car Scanner iOS app and a Panlong OBD2 bluetooth scanner module to read diagnostics. This gave P0A80 and P3000 hybrid battery codes, so I then ran Dr Prius battery testing which gave a 48% capacity reading (needs replacing soon).

The owner messaged me today to say he now has a Check Engine light and the Check Hybrid System fault system. Did my reading codes (or exercising the battery) trigger this, or is it just timing coincidence?

 

Thanks. I would have bought it knowing I'd need to replace it. But it apparently sold today anyway...