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Triangle VSC (!) Lights on no pending codes

Discussion in 'Gen 2 Prius Technical Discussion' started by Banksy, Apr 13, 2020.

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  1. Banksy

    Banksy Active Member

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    Have driven my Prius about 60 miles since changing the HV battery and all these lights just came on.

    Haven't hooked up tech stream however used torque pro and my maxilink ML619 and see no stored or pending codes across the entire car.
     
    #1 Banksy, Apr 13, 2020
  2. bisco

    bisco cookie crumbler

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    hook up tech stream
     
    #2 bisco, Apr 13, 2020
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  3. Banksy

    Banksy Active Member

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    I have absolutely no idea what I'm doing in tech stream. However I'm using common sense

    Seeing these codes

    P3000 battery control system

    P0A84 Hybrid Battery Pack Cooling Fan 1 control circuit low
     
    #3 Banksy, Apr 13, 2020
  4. bisco

    bisco cookie crumbler

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    that's the ticket
     
    #4 bisco, Apr 13, 2020
  5. Banksy

    Banksy Active Member

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    So that's basically saying there's an issue with the battery control system

    And the fan cooling it

    By that does it mean the computer for the battery is having an issue? Or is it just the fan possibly?

    I couldn't get tech stream to test the fan

    However the ancient laptop I'm running this on had the battery die.

    So I will attempt to test again


    Side note

    THIS SOFTWARE IS COOL!
     
    #5 Banksy, Apr 13, 2020
  6. Banksy

    Banksy Active Member

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    On a side note if this helps I DID check the HV battery ECU connector before finishing the battery installation.

    It didn't look dirty or corroded.

    However I will also say the fan was absolutely filthy before I cleaned it out.
     
    #6 Banksy, Apr 13, 2020
  7. ChapmanF

    ChapmanF Senior Member

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    The codes are coming from different computers.

    The P0A84 is coming from the computer inside the battery, and it's telling you about a specific problem. Probably something to do with control of the fan, but those one-line fortune cookies usually aren't enough to pin down the problem. Looking up the code in the repair manual (more info) and following the troubleshooting steps given there will usually do the trick.

    The P3000 is from the hybrid control computer up in the front of the car. It's just telling you that it heard the battery computer has something to tell you, which would be the P0A84.
     
    #7 ChapmanF, Apr 13, 2020
  8. Banksy

    Banksy Active Member

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    So odds are these codes are related to each other.
     
    #8 Banksy, Apr 13, 2020
  9. ChapmanF

    ChapmanF Senior Member

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    It's not odds. P3000 is a hybrid ECU code that literally means "go deal with your battery ECU code."
     
    #9 ChapmanF, Apr 13, 2020
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  10. Banksy

    Banksy Active Member

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    I like your style.

    I'll take a look at the connector for the can tomorrow and check for corrosion.

    I'll also try testing it though techstream if that's possible

    Very new to this software
     
    #10 Banksy, Apr 13, 2020
  11. ChapmanF

    ChapmanF Senior Member

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    I haven't looked at the repair manual workup instructions for P0A84 recently. That would be a worthwhile step. It might tell you that some of the things you are planning to check won't tell you much about this problem, while other checks you're not thinking of would.
     
    #11 ChapmanF, Apr 13, 2020
  12. strawbrad

    strawbrad http://minnesotahybridbatteries.com

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    A common problem with the Gen 2 Prius is leaky rear hatch seals. Often these leaks lead to the wiring for the HV fan. Check the plug next to the fan. They can rot away from getting wet.
     
    #12 strawbrad, Apr 13, 2020
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  13. Banksy

    Banksy Active Member

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    Now that you mention it... I noticed water in the rear of this car when changing the battery. Right where that compartment is on the driver's side next to the storage bin.

    I was wondering how that got in there.

    When I was replacing the HV battery didn't notice any water on the passenger side where the fan and wiring is located.

    However I will definitely be checking this tomorrow.


    What's the best fix for the leaks?
     
    #13 Banksy, Apr 13, 2020
  14. strawbrad

    strawbrad http://minnesotahybridbatteries.com

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    The cheap fix is small holes drilled in the low spot where the water is collecting. These are old cars.;)
     
    #14 strawbrad, Apr 13, 2020
  15. Banksy

    Banksy Active Member

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    Dude where were you a month ago

    I'd take a new set of modules all day long for 850.

    I feel like I got ripped off now )':
     
    #15 Banksy, Apr 13, 2020
    Last edited: Apr 14, 2020
  16. Banksy

    Banksy Active Member

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    Also where do you get a key for this?

    Oh NVM got it off Reddit
     
    #16 Banksy, Apr 14, 2020
    Last edited: Apr 14, 2020
  17. dolj

    dolj Senior Member

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    I doubt Brad is selling new cells modules HV batteries for $850. More like a top-notch reconditioned HV battery, which I still would take given the correct use-case scenario.

    If they were new, well, that would be something else!
     
    #17 dolj, Apr 14, 2020
  18. Banksy

    Banksy Active Member

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    do not know what shipping is but if the quality is there that's a great deal

    I went with 2nd life batteries due to the price and recommend off here

    In tech stream they all were very very close voltage wise. do not know if that's a sign of a gooden or not but looks good to me
     
    #18 Banksy, Apr 14, 2020
  19. dolj

    dolj Senior Member

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    It is certainly a plus until they aren't. Long may it be that they remain close in voltage and capacity (which is as important also).
     
    #19 dolj, Apr 14, 2020
  20. TMR-JWAP

    TMR-JWAP Senior Member

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    The bottom plastic ventilation duct for the battery has a sensor in it. Perhaps that sensor helps control the fan? Did you disconnect it when you disassembled the rear of the car to remove the battery? Perhaps you forgot to plug it in when you reassembled the car.
     
    #20 TMR-JWAP, Apr 14, 2020
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