Bad Transmission Plus Bad Hybrid Battery And 12V

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by TobeyThe2008Prius, Feb 13, 2021.

  1. TobeyThe2008Prius

    TobeyThe2008Prius New Member

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    2008 Prius
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    Touring
    I Have The Prius 2008 Green With 139,892 Miles After About 50 Seconds After Starting The After Letting Sit For 1 Month All The Lights Came On. I Had The Tire Light For 2 Months. I Took It Over To My Friend Who Had Techstream. I Am Wondering Why My Transmission Failed. I Looked Up About The Hybrid Battery And They Fail From Sitting Which I Was Unaware Of. So I Want To Know If This Car Is Worth The Fix I Had It For 13 Years.

    P0A92 521

    P0A7A 344

    P3000 123

    P3015 123

    P0A80 123

    C1241 41 84

    C1259 58 150

    C1310 156 51

    C2122

    B1421

    B1630

    B1635

    12V At 11.02 OFF 13.92 ON

    BB1 15.59

    BB2 15.48

    BB3 15.58

    BB4 15.55

    BB5 13.70

    BB6 15.51

    BB7 15.62

    BB8 15.54

    BB9 15.60

    BB10 15.49

    BB11 15.65

    BB12 15.53

    BB13 15.42

    BB14 15.57

    ALL RR 0.20
     

    Attached Files:

  2. bisco

    bisco cookie crumbler

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    charge the 12v and repeat the test if it holds a charge. otherwise, replace it.
     
  3. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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  4. rjparker

    rjparker Senior Member

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    How do you know the transmission is bad?

    What Is Wrong With Your Caps Key?

    As we said in your other posts the 12v battery voltages are low both off and running.
    12V At 11.02 OFF 13.92 ON
     
  5. TobeyThe2008Prius

    TobeyThe2008Prius New Member

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    So I need to replace 12v before I do anything else
     
  6. mr_guy_mann

    mr_guy_mann Active Member

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    Yes, having a strong 12V battery is the first step to seeing what is actually wrong with your car. It is still very possible that you have a failing HV battery as well. Won't know until you start doing something to check it out.

    Whether or not it's worth fixing is up to you and how much time effort and money you're willing to invest in your car. If you have DIY skills and attitude (and have space / tools to work on things) AND aren't phazed by the thought of making a mistake or having a car that could fail again at some point, then you could repair the HV battery yourself. (this can cost the least money but takes the most time, how reliable this will be depends on how well you do things)

    If you have to pay a shop or dealer to repair your car (ie installing NEW battery modules) then fixing an old prius becomes less feasible. (most money but least time, the new HV battery should be good for another 10 years)

    In between those options is getting NEW modules (from Toyota or Newpriusbatteries.com) and installing them yourself.

    Generally most here do not reccomend any form of rebuilt or refurbished or "repaired" battery since these are made up of used modules that may or may not have been "reconditioned". Reliability is often poor with repeat failures within a few months.

    Posted via the PriusChat mobile app.
     
  7. TobeyThe2008Prius

    TobeyThe2008Prius New Member

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    I got 12V installed at 12.99V OFF And 14.59V ONfrom the dealership and the hybrid Battery bad still. The transmission codes are only pending now.
     
    #7 TobeyThe2008Prius, Feb 14, 2021
    Last edited: Feb 14, 2021
  8. bisco

    bisco cookie crumbler

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    'newpriusbatteries.com'
     
    Raytheeagle likes this.
  9. Raytheeagle

    Raytheeagle Senior Member

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    @2k1Toaster (y).
     
  10. strawbrad

    strawbrad http://minnesotahybridbatteries.com

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    Here is the trouble shooting procedure for the P0A92 521 code. The two possible outcomes are replacing the transmission or the inverter. Replacing the inverter takes just a couple of hours and they can be purchased for less than $100. So that repair is not a car killer. Having to replace both the HV battery and a transmission exceed the value of your Prius.

    Your car is worth $500 to $1000 in it's current condition. Someone would be able to DIY the repairs and have a good cheap car. Original equipment catalytic coverters are also scraping for over $1000. That might be a good way to get more money out of your car.

    https://share.qclt.com/%E4%B8%B0%E7%94%B0%E6%99%AE%E7%91%9E%E6%96%AF%E5%8E%9F%E5%8E%82%E8%8B%B1%E6%96%87%E6%89%8B%E5%86%8Cpdf%E6%A0%BC%E5%BC%8F/repair%20manual/04pruisr/05/21bpm/0a92521.pdf
     
  11. ttou68

    ttou68 Active Member

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    From the info, I can see that block 5 (BB5) is the cause of your hybrid battery issue...
    I would start there, if you are able DIY ..

    Good Luck!

    Posted via the PriusChat mobile app.
     
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