Dr Prius - Error!! battery was somehow charging during test

congrats and welcome!

did you run it again to see if it was a glitch?

 

which ODB2 bluetooth adapter are you using?

Dr Prius report shows
VIN# No VIN Number

 

Good catch.
You might want to try the Hybrid Assistant app too, to see if it also works with your OBD2 adapter. Both apps are really good at giving lots of data about the Prius systems and data that one app doesn't have can sometimes be found using the other app.

I was wondering the same. You could send an email to Dr Prius support and ask if they know of any other issues when using the app with an import from japan.
Hybrid battery diagnostic and repair tool for Toyota and Lexus

 

i would say 85% is spot on for an 8 year old battery

 

If you already watched a YT you probably already know about the option to view the reporter data (there is an option in settings "Archive Trips" that lets you choose how many trips to archive).
The default screens are not the easiest to view at a glance like DrPrius. The reporter feature in Hybrid Assistant is were the app really shines since it saves a ton of data for each trip it archives. And the more you read it the more you'll start to understand what some of the more obscure bits relate to.

 

I keep getting the same error code. So are you not supposed to keep your foot on the brake when doing the test even though the car is in reverse? I get down to about 200 seconds left and the engine kicks on to charge the battery and it throws the error

 

That is great news! Now get going with the egr circuit cleaning. You’ve got 3 hours to complete it, time starts now!

 

It could be a glitch in the test, or it might indicate a potential issue with the battery. I'd recommend consulting with a mechanic or someone knowledgeable about Prius batteries to interpret the result and determine if any further action is needed.

 

The similar happens when there is a module in the battery pack that suddenly loses its charge during the test and the battery charge drops below 40% instantly and the engine starts. Such a module can be detected by trying to discharge it with an RC charger. During discharge the charger will throw an error message saying something like the voltage of the battery is too low.