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codes: P0A80,0A9E, P0AC2,P0AC8

Discussion in 'Prius c Technical Discussion' started by Anthonyhea25, May 28, 2024.

  1. Anthonyhea25

    Anthonyhea25 New Member

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    Hello, I am new to this forum, but have been in a dilemma for a few weeks now and can’t figure out the solution. I have a 2013 Prius C with 130,000 miles that was having hybrid battery issues to a point where it wouldn’t start anymore. I ended up replacing the hybrid battery with a “refurbished” one and now I am getting codes: P0A80,0A9E, P0AC2,P0AC8. I can’t exactly pinpoint what is wrong, nor what exactly to troubleshoot or test. Any help or advice would be greatly appreciated. Just trying to get my daily driver working again!!
     
  2. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

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    Toyota service information link

    That post will give more info on what kind of help Toyota makes available. Within it, you'll find links to their online tech library. From there, you can subscribe to a copy of the factory repair manual. They have a two-day pass that works well for us DIYers.

    It sounds like the scanner you have is at least partially useful- is it giving you the INF sub-codes to go with those trouble codes?

    Between full-access diagnostic codes and the real-deal repair manual, you should do okay.
     
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  3. Brian1954

    Brian1954 Active Member

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    All the trouble codes you list pertain to the hybrid vehicle battery. I hope that you have a warranty. Contact the seller of the HV battery to get a replacement.
     
  4. Anthonyhea25

    Anthonyhea25 New Member

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    UPDATE: I now found out that the codes that I was getting are in active. The only code I have that is active is P3004 and I am not sure how to troubleshoot it. I just replace the hybrid battery and the 12 V battery. Could this be a bad inverter?
     
  5. Anthonyhea25

    Anthonyhea25 New Member

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    I now found out that the codes that I was getting are in active. The only code I have that is active is P3004 and I am not sure how to troubleshoot it. I just replace the hybrid battery and the 12 V battery. Could this be a bad inverter?
     
  6. bisco

    bisco cookie crumbler

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    you need a prius aware scanner to get the 3 digit sub code to p2004
     
  7. Anthonyhea25

    Anthonyhea25 New Member

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    I have an ELM 327 Bluetooth scanner I’ve been using through Dr Prius app but I need something different?
     
  8. Brian1954

    Brian1954 Active Member

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    Yes, take a look at this thread: https://priuschat.com/index.php?posts/3290690
    The Autel AP200 is a good choice. It is about $60 on Amazon.
     
  9. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

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    ^ that. I understand Dr. Prius is extremely specific to hybrid battery monitoring, where the Autel (and some other tools) are better set up for whole-car diagnostics.

    I have the Autel AP2500E, which is similar to the AP200 but not identical. It was a big help on a recent problem.
     
  10. Anthonyhea25

    Anthonyhea25 New Member

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    Alright I ordered it, it will be here Sunday so I can get the inf subcode right?
     
  11. vvillovv

    vvillovv Senior Member

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    There are a lot of different autel machines. @mr_guy_mann is probably the right priuschat person to answer more about the autel AP200 will or wouldn't show. Or read more of the posts in the link @Brian1954 posted above. If it does show INFs at that price it's a steel, IMO. I have my doubts, but hey, ya never know !
    Also a good idea to get the $20 2day subscription to the repair manual, where you can read about your current DTC - and more about its INFs and where each leads though the cars other components / systems.
     
    #11 vvillovv, Jun 1, 2024
    Last edited: Jun 1, 2024
  12. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

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    Screenshot 2024-06-01 at 8.25.47 AM.png
    A lifetime of thievery can be yours...
     
  13. Anthonyhea25

    Anthonyhea25 New Member

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    I ordered it and it should be here in the mail today! I will update what the INF code is once it gets here
     
  14. Anthonyhea25

    Anthonyhea25 New Member

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    Got the Autel AP200 and it’s awesome! Especially for 60$.. it’s P3004 detail code 800.
     
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  15. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

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    Good work!

    Next stop: yet yourself a 2-day subscription to the repair manual, see link in post #2.
     
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  16. Anthonyhea25

    Anthonyhea25 New Member

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    I got the subscription to the manual, I started testing it and it was leaning towards bad inverter… I ended up finding someone parting out the same car that was in an accident and got a inverter with 40,000 miles on it for only 100 bucks! I picked it up and put it in the car and it is finally working again!! From what I’ve read I believe that inverter went bad and discharge my battery to where it completely killed it but when I replace the battery that was only half the problem. Now with the “New” inverter. It is running back how it used to! Thank you all for your help and advice, I was so close to giving up on the car before I joined this site!
     
  17. Anthonyhea25

    Anthonyhea25 New Member

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    Well… just when I thought everything was good, I got the check hybrid system message again. I am now showing code P0A80 subcode 123. This is feeling like a never ending battle
     
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  18. bisco

    bisco cookie crumbler

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    that is most often the case with refurbished batteries unfortunately
     
  19. Anthonyhea25

    Anthonyhea25 New Member

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    I’m not exactly sure what triggered the code, when I read the freeze-frame data I’m not sure what necessarily caused it to trigger. One of the cells voltage was a little lower than all the others. I don’t know a lot about hybrid battery but after the pack is reinstalled in the car, does it take a few charges and discharges for the battery to equalize all the cells? After I cleared the code, it hasn’t popped up again and it’s been about 50 miles the first time it popped up was only 20 miles after the replacement.
     
  20. bisco

    bisco cookie crumbler

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    i'm not sure either, but you might have to balance the modules out of the car, or with a grid charger.