Have 09 Prius Fan Is Making A Weird Noise P0A80

Hybrid battery has failed. Join the club there failing left and right from people not driving there car during Covid.

Start reading hundreds of posts about the hybrid battery. Use the search forums tab up top and search

hybrid battery

 

at 233k, you have to ask yourself how much you want to invest for the future

 

Do you have a friend or family member that likes to work on cars, or do you like to work on cars? Traditionally these error codes are addressed by throwing the baby out with the bath water and replacing everything with brand new, which is very wasteful and will cost close to the value of the car. So finding a mechanic that's not worried about liability and warranty issues to start working on this from least to most expensive is key.

If you're lucky, the main problem here is corrosion in your voltage sensing harness, a $50 part (new)... It's also possible that the corrosion spread to the battery ECU, a $50 part (used). If you pull the pack and inspect these we can walk you through it all and you could be back on the road with no issues.

But you're also going to need battery reconditioning, or deep cycling of hybrid battery pack to restore capacity, which is explained here: hybridautomotive.com/frequently-asked-questions/

All of the above is relatively inexpensive compared to replacing the whole pack...

It's also possible that you have a failed battery module(s) that need to be replaced, a $30 part (used). Once you get to the point of replacing modules you're looking at max 3 years before you'll have to replace more modules.

If you lived on the West Coast, I could probably have all this work done for you in the $500 range, but you're not, so you're going to have to look around to find someone or do the work yourself.

There's also people who replace modules and rebuild pack on craigs list and elsewhere for $380-$1200, but as mentioned, that's not going to last more than a few years.

And if you have $1700 to spare, buying and installing a brand new pack will guarantee you don't have anything to worry about it for another decade and you could take the pack with you if you upgrade to a Gen3 Prius in the the future, so the investment can outlive the lifespan of the vehicle.

 

Wish I knew... Nearest battery nerds on here that I know and trust are far away to the Northeast and South of you... But Hybrid Automotive has a map of repair shops that use their equipment here: Dealer Map | Hybrid Automotive Approved Resellers | Hybrid Automotive

Can't say all the people on that map are people you want to do business with, but if you look up the most popular active users on PriusChat and message the one nearest to you they might be able to give you a thumbs up or down on who you want to use.