ABS, VSC, RED TRIANGLE, ((!)) light on, CODE: P3009

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Juan Carlos Valle, Sep 14, 2020.

  1. Juan Carlos Valle

    Juan Carlos Valle Junior Member

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    Hi guys,

    After not driving my 04 Prius (220k miles) for 3 days, this morning when I went to work all lights on dashboard were on, I could return to my house after driving for a couple of minutes. I used my code reader, and is shows P3009 (high voltage leak detected; leak detected (electric leak from high-voltage system).

    A/C has not been working for over a year now, so I don't think it is nothing related with the A/C.

    One thing had had happened to me twice in the last month, when I started the car, dashboard was completely off during my drive, then the next day dashboard was back on.

    Any ideas? any solutions?

    According to the text below, my problem is in battery case. My code came back in less than 30 seconds.

    "The first step is to clear the P3009 trouble code by unhooking the 12V battery for a moment or using a code reader. Now turn the key on/ but NOT start/ready mode, wait 30 seconds and if the code comes back, the leak is in the battery case. If the code does not return, turn key to start to "ready mode" and immediately shift to neutral and stay this mode for 30 seconds. If the code returns, the leak is in the power cables or inverter. If the code did not set, shift to drive and if the code appears now (can take up to a minute or so), the leak is in the transaxle. This is something that can be done in a few minutes without a scan tool or "megger" while never removing any components and not leaving the driver seat."
     

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  2. SFO

    SFO Senior Member

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    Sounds the combination meter (speedometer) is failing, you can perform a cheap DIY fix (threads and videos abound), or buy a lifetime warranty replacement part at Prius Speedometer Replacement

    Regarding the DTC P3009, you may want to upgraded to a hybrid compatible OBD2 scanner that can offer subcodes. Many use a mini-vci cable and techstream (dealer tech software) for retrieving the additional subcodes (INFs or detailed codes).

    DTC P3009 has five (5) related detailed codes (INFs), knowing an INF can further diagnose the issue and potentially save time and money.

    Here is the workup for DTC P3009 (notice the five subcodes or INFs): 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/3009526.pdf
     
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  3. Juan Carlos Valle

    Juan Carlos Valle Junior Member

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    Thank you!! I'll upgrade my Dr. Prius app then I'll run a test.

    I just ran Dr. Prius basic test (see image). my car is not giving "ready" mode signa on dashboard.
     

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  4. bisco

    bisco cookie crumbler

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    check the 12v health
     
  5. Juan Carlos Valle

    Juan Carlos Valle Junior Member

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    I'll

    Thanks
     
  6. SFO

    SFO Senior Member

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    Unless Dr Prius had a major update recently, it may not read 'subcodes', aka INFs or 'detailed codes'.

    The DTC you posted, P3009 has five (5) possible INFs, knowing the INF for a particular DTC (P3009 in this case) can be very helpful.

    If you can't afford a mini-vci cable, then go through the workup for DTC P3009 (below) one step at a time until something stands out.

    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/3009526.pdf

    Or just go with your initial workup that there is a HV leak in the case, and clean, repair or replace the relate parts as needed.
     
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  7. Juan Carlos Valle

    Juan Carlos Valle Junior Member

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    • vehicle switched off - 11.6V
    • engine off headlights on - 10.7V
    • engine doesn't start, so i can't do test with engine on
     

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  8. dolj

    dolj Senior Member

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    They are not great, you might be needing a new battery, or if it has been recently replaced, it definitely needs some love from a battery charger. Get that taken care of before proceeding any further.

    FYI, P3009 is a Gen 1 code, in the Gen 2, like yours, the code for an HV isolation fault is P0AA6. So something is a bit hokey with what you are seeing.
     
  9. bisco

    bisco cookie crumbler

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    what should a 12v battery measure?
     
  10. TMR-JWAP

    TMR-JWAP Senior Member

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    @dolj

    I don't currently recall exactly where, but I have read a document that states some early Gen 2s still used the P3009 code instead of the P0AA6. I was researching it because I ran across a 2004 with a P3009.
     
    #10 TMR-JWAP, Sep 15, 2020
    Last edited: Sep 15, 2020
  11. TMR-JWAP

    TMR-JWAP Senior Member

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  12. ChapmanF

    ChapmanF Senior Member

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    It depends on why the question's being asked.

    To someone wondering whether a battery is fully charged, the answer is a shade over 12.7 for a flooded lead-acid battery, a bit higher for an AGM I'm told. There's a bit of dependence on temperature; for the obsessive, there are charts.

    To someone wondering "where do I start with diagnosing this car?", a Gen 2 manual will say to confirm it's 10 to 14, or otherwise charge or replace it before proceeding. A Gen 3 manual will say 11 to 14.
     
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  13. dolj

    dolj Senior Member

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  14. Juan Carlos Valle

    Juan Carlos Valle Junior Member

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    I am trying to find one that can be run on MAC but can't find any.
     
  15. SFO

    SFO Senior Member

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    You might try using an emulator like Oracle VM VirtualBox or https://www.winehq.org/

    VB will require a windows OS, XP or greater.
     
  16. strawbrad

    strawbrad http://minnesotahybridbatteries.com

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    The dark dash is a separate issue from the high voltage leak.

    You have already done a fine job of trouble shooting this problem. Bisco tells everyone the problem is the 12 volt battery despite it never being true. Sub codes are great but they will only confirm what your test has already shown. Here is another easy test for testing the HV battery for a high voltage leak. Wear gloves and use just one hand while doing this test.



    Clearing the codes will allow your car to start and run. This is a temporary fix.
     
  17. dolj

    dolj Senior Member

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    ... as well as VMWare Fusion, Parallels, or even the built-in Bootcamp will all work.

    Probably not the highest priority at the moment, but if you need Techstream in the future ...
     
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