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Is this an OEM HV hybrid battery?

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Prij1, Aug 16, 2023.

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  1. Prij1

    Prij1 Junior Member

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    I cleaned corrosion off the bus bar and reinstalled the battery. Took it for a drive and the P0AA6 came back within five minutes

    I don’t have a reader for the INF detail codes, but I ran through the amateur diagnostic. Each step for two minutes.

    Put it in accessory mode. No code. So battery ok.

    Then put it in ready mode in neutral. No code. So inverter ok.

    Then put it in gear. No code. So transmission ok.

    Then turned on AC. No code. So AC ok.

    Just get the Autel Maxi AP200 to read INF codes for sure, huh?
     
    #21 Prij1, Aug 27, 2023
  2. Brian1954

    Brian1954 Active Member

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    Yes, you need a scanner that will tell you the INF code so that you can determine the location of the P0AA6 problem.

    Posted via the PriusChat mobile app.
     
    #22 Brian1954, Aug 27, 2023
  3. dolj

    dolj Senior Member

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    If you didn't clean any leaked electrolyte off the case and replace any leaking modules, then yeah, the P0AA6 is gonna come back.
     
    #23 dolj, Aug 28, 2023
    Brian1954 likes this.
  4. Prij1

    Prij1 Junior Member

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    Purchased the Autel AP200.
    Confirmed P0AA6 526 and 612.
    Picked up the Project Lithium battery.
    Installed.

    First noticeable difference. Sitting for 10 minutes listening to some tunes on the radio, with AC blasting and headlights on… engine never kicked on and the 2-in-1 modules barely dipped below 16v.

    But… doh… I forgot to install the plastic cover for the bus bars. How important is it to put those back?

    IMG_0043.jpeg
    IMG_0064.jpeg
    IMG_0066.jpeg
     
    #24 Prij1, Sep 4, 2023
  5. mr_guy_mann

    mr_guy_mann Senior Member

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    Well...
    If the new modules are securely bolted to the bottom case (and you didn't short the busbar connections while putting the top case back on), then it's 99% likely that you're fine(?) It would have to be a fairly serious impact to crush the top case into the busbars - in which case the plastic covers might not matter.

    I'm OCD enough that I would strip it back down and put them on - assuming they fit the nexcell modules anyway.

    Posted via the PriusChat mobile app.
     
    #25 mr_guy_mann, Sep 5, 2023
  6. Prij1

    Prij1 Junior Member

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    I was wondering if the plastic covers served some thermal protection but I suppose it is mainly to protect from shorts.

    Yes usually I’m that way too but sometimes my tiredness overwhelms it! I will likely pull it apart again since it will be much quicker this time around. Thanks for the input.
     
    #26 Prij1, Sep 5, 2023
    bisco likes this.
  7. Prij1

    Prij1 Junior Member

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    Need to get rid of my old modules. I found a local guy who sells them individually and is willing to buy my stock. They seem to be going for about $30 each on eBay.

    What would be a fair price given these are already dismantled, holding 7.8 V, passes my admittedly low standard load testing, and I would conveniently drop it off to him?
     
    #27 Prij1, Sep 6, 2023
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