Error P0A80, P3019, Exploding Battery, Hybrid Automotive

Discussion in 'Gen 2 Prius Technical Discussion' started by Earthcub, Sep 10, 2017.

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  1. MTL_hihy

    MTL_hihy Active Member

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    I'm not sure if the bus bars would be an issue (seems possible but not likely) since the bus bars are just small plates connecting adjacent modules and the ones in question were left untouched. Also very rare for the hybrid ECU to fail. More likely to me would be to have damaged the block sensing wires (since the bus bars were not all removed and the wires run right through that area) which would have given false voltages and thus caused the ECU to overcharge them and cause them to fail catastrophically. I can't see heat being the reason either since there are temp monitors under the pack and in many cases the vents don't work right over time but this doesn't usually cause them to fail either, definitely a charging issue under load). All of this is just a guess since the voltages were not monitored at the time it happened.
     
    #21 MTL_hihy, Sep 13, 2017
    Last edited: Sep 13, 2017
  2. ikefor

    ikefor Member

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    #22 ikefor, Sep 16, 2017
    Last edited: Sep 16, 2017
  3. Earthcub

    Earthcub Junior Member

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    I used the system that I purchased but to tell the truth, I didn't find that Torque could give me any detailed information about the hybrid battery or how it was functioning. I'll keep it going in case error codes are thrown while I'm driving however.

    I did get the system back together and I've driven the car on short runs and all seems to be good so far. Also, I think I know why the battery overheated. Totally my fault. I didn't hook up the vent that runs from the top of the hybrid battery to the circulation fan. I had it stored with my interior and forgot about it. It seems that the computer doesn't throw a code on overheating the battery so I was never notified that this was happening. I only realized my mistake when I was recently putting the system back together because I decided to completely clean the vents out. I also deoxidized the bars before reassembling the battery modules.

    So far so good. Thank you to everyone for your feedback and opinions.
     
    #23 Earthcub, Sep 20, 2017
    Dxta likes this.
  4. Overworked9000

    Overworked9000 Junior Member

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    Is there an iphone alternative to the Torque app?
     
    #24 Overworked9000, Sep 20, 2017
  5. SFO

    SFO Senior Member

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    Did you look in here already?

    OBDII iPhone App | PriusChat
     
    #25 SFO, Sep 20, 2017
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  6. PriusV17

    PriusV17 Active Member

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    Because you replaced a certain module and some other set of modules exploded. No warning red triangle of death popped up. No warning that your pack is experiencing extreme heat/overload and that you need to pull over and stop. No hint that your life could be in danger. That tells me serious problems and it's not worth your life, your car or your home to risk with that battery pack. Best to let it go and get a brand new one if possible. Swapping module after module is like playing Russian roulette now.

    Highly recommend apps like Dr. Prius to monitor battery voltages, temps, etc. after doing something like a pack reconditioning. Monitor it carefully to make sure all is within safe range. Even that is not 100% should any sensor provide wrong data. So if you hear a pop or smell something, take it seriously.
     
    #26 PriusV17, Sep 27, 2018
  7. Hybrid Battery Exchange

    Hybrid Battery Exchange Member

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    The reason your modules exploded was due to an overcharge. You overcharged the pack with the grid charger and when you started up the vehicle it proceeded to overcharge the pack until it figured out the battery state of charge (typically 1ah of charge). At this point your those 2 modules had been damaged and on the brink of exploding, the immediate driving afterwards sealed their fate.

    Computer does throw a code for overheating battery and significantly reduces performance when the battery reaches 140 degrees. The car isn't programmed to encounter a fully charged battery, Toyota engineers didn't anticipate people charging their hybrid batteries.
     
    #27 Hybrid Battery Exchange, Sep 28, 2018
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