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P0A0D to no end…

Discussion in 'Gen 3 Prius Technical Discussion' started by Awells80, Jul 15, 2024.

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  1. vvillovv

    vvillovv Senior Member

    Joined:
    Mar 19, 2013
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    Location:
    NY
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Plus
    I'd like to help, but I'm having a hard to following. Beside, imo Chat and TRM are the two best Gen 3 techs on this forum at this time. And there is no way I could offer any better help than they are giving you. In case it was missed (I know how hard getting a pack rebuild sussed out the first time around ) there was also a EGR cleaning while doing the pack reconditioning. (imo that's way overkill on the possiblity scales). my advice is to stick with one of the the other Chap or TWM suggestions and try to give as through a go at digging out answers for them. I said my piece, I"m out, and no real need to comment back as I'm pretty lost as it is.
    And don't be to afraid to ask them how to do, if you don't understand what they are asking you to test or look at. This stuff in pretty complex.
     
    #41 vvillovv, Aug 11, 2024 at 2:41 AM
    Last edited: Aug 11, 2024 at 2:52 AM
  2. TMR-JWAP

    TMR-JWAP Senior Member

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    Aug 12, 2016
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    Location:
    Columbia, SC
    Vehicle:
    2007 Prius
    Model:
    Touring
    If all you did was use the safety interlock switch as a 'switch', the odds of causing any significant damage are very slim. It probably created a very small arc as the plug and socket made contact with each other, but the amperage is so low it's no big deal. It's just not a preferred practice to complete an electrical circuit because it's not really designed to be used that way. Lightbulbs aren't exactly designed for that either, but who cares about any arc damage on them..
     
    #42 TMR-JWAP, Aug 11, 2024 at 9:11 AM
  3. Awells80

    Awells80 New Member

    Joined:
    Jun 29, 2024
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    Location:
    Louisville, Ky.
    Vehicle:
    Other Hybrid
    Model:
    ----USA----
     
    #43 Awells80, Aug 12, 2024 at 10:36 PM
  4. Awells80

    Awells80 New Member

    Joined:
    Jun 29, 2024
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    0
    Location:
    Louisville, Ky.
    Vehicle:
    Other Hybrid
    Model:
    ----USA----
    I feel the same way about using the interlock as a switch. I understand why they advise you to rather use the bulbs after your statement. Thank you for your input on that. I did not see any visual damage or arcing marks on either the switch or the black female side. Together both show no signs of any arching. Although, the first time around. The other mistake I made was I took a shop light with a 500 W halogen Bulb first time around and it instantly blew the bulb to Pieces. I instantly started questioning myself because I know better. I was just hurrying through because I am a full time student and work full time. Single father half the week but back to the subject, the extra voltage made its way right out the bulb, basically acting as a fuse.

    For the past three days I have done 3 very precise charge/discharge cycles starting small and ending with a discharge of about 120v for the last cycle as I let it rest for a good 30 min to an hour, then grid charged to right around 244V with a fan directly on the battery pack keeping it completely cool. This peak voltage was right around 5am.

    This has been my first actual full battery rebalancing with very attentive cycles paying very close attention to voltage differences while using two 25 watt bulbs down low to check differences in my readings.

    Prior to this battery rebalancing I have just completed in these last 3-4 days, I did a load test to determine my worst cells then replaced them. After replacing, I gave the pack a full charge and load tested once again. After this, with a full charge and voltage difference no greater than.04, and a few trial and errors, I did the single discharge with the two 200 w bulbs, then a full charge to finish the pack up and put it back in the vehicle.
     
    #44 Awells80, Aug 13, 2024 at 1:17 AM
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