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The tree of blinking lights and error codes

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by ystasino, Sep 19, 2014.

  1. ystasino

    ystasino Active Member

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    P0000
    P002B
    P003A
    P001f
    P0023
    P0034
    P0043
    P0050

    First time I see an error code 7.5 years into the car. Scanguage read them and I cleared them (successfully for now)

    What should I worry about? A/C lost power a couple of minutes before the errors started blinking. No other weird behavior noticed, no recent services other than an oil change.

    Thanks a lot!
     
    #1 ystasino, Sep 19, 2014
  2. Patrick Wong

    Patrick Wong DIY Enthusiast

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    Exactly what warning lights appeared?

    That list does not show valid Prius codes. You need something better, Mini VCI for example.

    Check the inverter coolant reservoir for fluid turbulence when the Prius is READY. If you don't see this, the inverter coolant pump has failed and that is the root cause of your car's problems.
     
    #2 Patrick Wong, Sep 19, 2014
  3. ystasino

    ystasino Active Member

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    I recall that the check engine light and the red triangle light appeared, that the lcd screen was showing a red triangle at the top, and that the cabin lights and headlights dimmed. All that happened in ready mode.

    thanks again!
     
    #3 ystasino, Sep 19, 2014
    Last edited: Sep 19, 2014
  4. bisco

    bisco cookie crumbler

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    how many miles on her?
     
    #4 bisco, Sep 19, 2014
  5. ystasino

    ystasino Active Member

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    ~69,000. This morning there were no lights, but this liquid had minimal flow/disturbance when I looked at it. I think there was a recall on this pump?

    Can I drive her 5 miles a day for a week or so before I fix it?


    [​IMG]
     
    #5 ystasino, Sep 19, 2014
  6. FazilHussein

    FazilHussein Member

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    Pump's shot; should look like a bubbling stream in there.

    Yes, there is a TSB for the coolant pump...read here:

    Luscious Garage | Blog | Prius Code P0A93: Inverter Water Pump Failure

    Any miles a day like this is a bad idea....overheat the inverter = $xxx repair bill if you DIY, or $xxxx bill at the shop.

    Faz
     
    #6 FazilHussein, Sep 19, 2014
  7. ystasino

    ystasino Active Member

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    Says until 2013, sounds like I have to pay for this...

    They quoted me $150 parts and $450-500 labor!
     
    #7 ystasino, Sep 19, 2014
    Last edited: Sep 19, 2014
  8. FazilHussein

    FazilHussein Member

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    Call your local Toyota dealership and confirm; push come to shove, DIY:



    Part's about $100...

    Toyota Factory Genuine Prius Hybrid System Water Pump 04 05 06 07 08 09 NEW | eBay

    You'll also need 1 gallon of SLLC; $40ish at the dealer....or reuse the old stuff....

    I do believe you have to bleed the system before a drive....

    Bleeding inverter coolant system. | PriusChat

    Also, order yourself a Mini VCI:

    V8 10 021 16 PIN Mini VCI TIS Techstream Diagnostic Scanner FOR Toyota Cable | eBay

    Best $30 you'll spend if you intend to keep your Prius.

    Faz
     
    #8 FazilHussein, Sep 19, 2014
    Last edited: Sep 19, 2014
  9. FazilHussein

    FazilHussein Member

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    Sounds right....$100 diagnosis, 2hrs shop time, 1/2 bleed x $120/hr = $400 + part
     
    #9 FazilHussein, Sep 19, 2014
  10. exstudent

    exstudent Senior Member

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    The Youtube video is entertaining & scary:
    0:34 - begins to describe the two cooling systems (ICE & Inverter)
    0:46 - says Inverter cooling loop cools Inverter and Hybrid battery in the back.

    YES, Inverter loop must be bleed. Author doesn't state this or show this being performed, just drives off.

    He did a good job swapping out the inverter pump with minimal removal of stuff.
     
    #10 exstudent, Sep 20, 2014
  11. Patrick Wong

    Patrick Wong DIY Enthusiast

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    #11 Patrick Wong, Sep 20, 2014
  12. ystasino

    ystasino Active Member

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    I need to drive it 11 miles to the nearest shop, is there any way to make that drive less dangerous for the inverter?
     
    #12 ystasino, Sep 20, 2014
  13. jadziasman

    jadziasman Prius owner emeritus

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    I went to a Toyota dealership 27 miles from my home when the inverter coolant pump failed on mine. Luckily the LSC was still active and it didn't cost me anything to get it replaced except my time.

    My pump failed in Sept 2012. I drove to the dealership no faster than 45 mph in the early morning to make sure I didn't overheat the inverter. The temperature was about 55°F that morning if I remember correctly. Since you're in Hawaii, it doesn't get that chilly, does it? In that case, you might want to have your Prius towed to the dealer on a flat bed if you don't want to DIY.

    The next time the inverter coolant pump fails on mine, I will DIM.
     
    #13 jadziasman, Sep 20, 2014
  14. Patrick Wong

    Patrick Wong DIY Enthusiast

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    You could try putting a bag of ice on top of the inverter and drive early in the morning when the ambient temp is lower. The ice might do nothing for the inverter but would make you feel like you tried.

    I assume that you won't be driving at a very fast speed.
     
    #14 Patrick Wong, Sep 20, 2014
  15. ystasino

    ystasino Active Member

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    hmm, no not fast speeds, 35 mph but there's elevation.
     
    #15 ystasino, Sep 20, 2014
  16. jadziasman

    jadziasman Prius owner emeritus

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    Elevation might be a problem since the HV battery might have to assist the ICE.
     
    #16 jadziasman, Sep 20, 2014
  17. ystasino

    ystasino Active Member

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    Towed it 12 miles ($90) and fixed it (with new liquid, $380). Many thanks for the good advice. It's the second replacement (first was under warranty).
     
    #17 ystasino, Sep 26, 2014
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