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P0A80 error code

Discussion in 'Gen 3 Prius Main Forum' started by zfk110, Nov 20, 2024 at 11:47 AM.

  1. zfk110

    zfk110 Junior Member

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    On my 2011 Prius with 150k miles, I’m averaging 50 miles per gallon. This morning, while driving, there is a small uphill portion before leaving my subdivision. As I drove up, all the warning lights came on, indicating that the hybrid battery needs to be replaced with a .

    I connected my Techstream laptop to get a screenshot, but I’m not very familiar with using it. Then, I used the Dr. Prius Battery app to run a diagnostic, which provided additional information. I’m planning to sell the car, but I want to fix this problem first. After clearing the check engine light, the car is driving fine, but now it shows a permanent P0A80 code.

    What do you think could be the issue? Is it just one or more bad cells that need to be replaced, or does the entire battery need balancing? Please let me know your thoughts. Thank you, and have a great day!

    IMG_20241120_095313970.jpg Screenshot_20241120-112749.png
     
    #1 zfk110, Nov 20, 2024 at 11:47 AM
  2. Brian1954

    Brian1954 Senior Member

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    One of the two modules that make up block #8 is bad. You can try to replace that one bad module and see if that works.
     
    #2 Brian1954, Nov 20, 2024 at 12:58 PM
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  3. bisco

    bisco cookie crumbler

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    if you can figure out tech stream, it will tell you which cells. you could replace them and rebalance the pack instead of replacing the whole pack, but you should disclose that to buyers. it likely won't last too long.
     
    #3 bisco, Nov 20, 2024 at 12:58 PM
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  4. zfk110

    zfk110 Junior Member

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    After speaking with the eBay seller, he pointed out that Blocks 6 and 8 are not holding a charge properly. He suggested replacing those two blocks, which consist of 4 cells. I have a mechanic friend who will replace them for me.

    IMG_20241120_095313970.jpg

    I bought these here

    TOYOTA PRIUS HYBRID BATTERY CELL NIMH MODULE 2010 2011 2012 2013 2014 2015 | eBay
     
    #4 zfk110, Nov 20, 2024 at 1:44 PM
    Last edited: Nov 20, 2024 at 1:52 PM
  5. zfk110

    zfk110 Junior Member

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    For Gen 3 2011 Prius is this video true about block location? Thanks

     
    #5 zfk110, Nov 20, 2024 at 2:06 PM
  6. Brian1954

    Brian1954 Senior Member

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    No. The video is for a 2007 Camry hybrid.. The Gen 3 is different. Search this forum, and you will find the information that you are looking for.
     
    #6 Brian1954, Nov 20, 2024 at 6:34 PM
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  7. zfk110

    zfk110 Junior Member

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    Can you please provide the block identification details for the 2011 Prius Gen 3 hybrid battery? I need to replace Block 6 and Block 8, but I want to confirm their exact positions. Specifically, could you clarify the following: sax.jpg
     
    #7 zfk110, Nov 20, 2024 at 7:41 PM
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