Multiple Codes with P0A80

Delearships are warranty repair specialists that don't do diagnostics beyond: "What the most expensive part we can replace" and if that doesn't work "What's the next most expensive part we can replace." They're the opposite of fixing a problem.

With so many error codes you likely have something that is unplugged, or a damaged wiring harness or one of your ECUs is bad. A Toyota Stealership would charge thousands to replace stuff like that, whereas a legit local mechanic trying to save their customer money would patch any cut wires and swap parts (likely one of the ECUs) with a spare Prius parts until they found the source of the problem then they'd buy a used part that's same age as your car because in most cases older cars don't need new parts if they aren't a wear and tear item.

 

So after the battery was replaced with the Toyota battery what codes do you have now All of these codes that the dealership highlighted in yellow are still existing even after the batteries replaced? If so then yes somewhere there's some kind of connection problem an ECU possibly out the battery ECU plug comes to mind I would thought the dealer would look at that when they're taking the battery out and changing it but these days I have no idea you would think these are questions to be asking the dealer I guess because it seems like something is out of communique with something else I take it the car is driving fine brakes are working great regeneration is happening all of that?

 

Curious which dealership accepted the Dorman as a "core" towards a new OEM battery?

Looks like other issues.

Odd for the dealership to leave extra money on the table, given the codes present they could've tried to upsell you a HV battery ECU as well.

 

So you get a bunch of error codes, have a dealership fix it and all the error codes are gone and then you post on here asking for help with a problem based on error codes that have already been fixed? How does that make sense? Seem like you're wasting our time... Or maybe you didn't present your question clearly enough?

 

Often there are false codes after the battery or something else has gone out. If you have no warning lights now you are good, assuming you have driven the car a few hundred miles or more. Sounds like you are ok now.

How much did the dealer charge for a new hv battery installed?

 

Pretty good price for new at a dealer.

 

You should check you're codes to see if any in loop.. just because.

 

If there are no lights now there are no current codes so you're all good to go.

As for why were there so many codes on the worksheet, that's like asking how long is a piece of string.

If you take out all the Uxxxx codes you're left with pretty much the same code list as the first time.

The Uxxxx codes relate to communication errors on the network bus. The assumption is they worked out why there were comms problems and fixed it/them.

In any case you're all up and running. Go forth and worry no more.