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Error P0A80

Discussion in 'Gen 2 Prius Technical Discussion' started by fkoali, May 15, 2017.

  1. fkoali

    fkoali New Member

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    Dear all

    I have prius 2007 with 230K Kilo meters , yesterday the error above became appear with red triangular , i think its belong to HV battery ?

    Posted via the PriusChat mobile app.
     
    #1 fkoali, May 15, 2017
  2. fotomoto

    fotomoto Senior Member

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    Yes, that is a code for a hybrid battery failure. 10+ years is about the time these batteries start to fail (the modules were probably produced in 2005).

    You can replace the failed modules with known good ones, replace with a rebuilt (or used) battery, or get a new one. Each choice has its pro's and con's.
     
    #2 fotomoto, May 15, 2017
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  3. fkoali

    fkoali New Member

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    Thank you for your reply,,i have an old one , but its not worked well , i replace it 2 years a go , can i take a good cells from it and use it in the damaged one ?

    Posted via the PriusChat mobile app.
     
    #3 fkoali, May 15, 2017
  4. bisco

    bisco cookie crumbler

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    to do a decent rebuild, you need to read through some of the threads here. there is a lot of good info on how-to.
     
    #4 bisco, May 15, 2017
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  5. fkoali

    fkoali New Member

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    Today i pull up my hv battery out , and measure the cells each one alone , i found that each one is 7.9 - 7.8 volt , except one of them i found it 6.6 volt , i thougt that it was the damaged cell , so i replaced it with one from my old HV Battery which its measure was 7.2 volt , after that i turned the car on and drove it for 5 kilo meters , red triangular and check engine become light a gain , so whatvdo you think a bout ?

    Posted via the PriusChat mobile app.
     
    #5 fkoali, May 16, 2017
  6. jerrymildred

    jerrymildred Senior Member

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    From what I remember reading, that one out of your old battery was not a close enough voltage match. A grid charger may or may not salvage the battery, but I suspect you'd need to start with a closer voltage match on the bad cell. And then there is the internal resistance to consider.
     
    #6 jerrymildred, May 16, 2017
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  7. fkoali

    fkoali New Member

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    1495185071957.jpg
    The problem solved by replacing one cell 6.5 volt by one of 7.2 volt

    Thanks alot for all.

    Posted via the PriusChat mobile app.
     
    #7 fkoali, May 19, 2017
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  8. ericbecky

    ericbecky Hybrid Battery Hero

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    Be sure the nuts on the modules are tightened to the correct specs.

    And the high voltage cable nuts.

    You don't want anything to come loose or start arcing.
     
    #8 ericbecky, May 19, 2017
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