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2010 Prius Hybrid System - Inverter Water Pump & Damaged Transistor / CPU

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by gpk, Jan 10, 2018.

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  1. gpk

    gpk New Member

    Joined:
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    Vehicle:
    2010 Prius
    Model:
    IV
    Thank you CR94! Do you know if there’s a way to test and service the inverter without replacing it? Most people on this thread are indicating there’s no reason to think the inverter is dead, since the car still drives, but it sounds like you’ve heard differently and I want to be as exhaustive as possible in gathering info. So any additional insight would be appreciated!
     
    #21 gpk, Feb 5, 2018
  2. The Critic

    The Critic Resident Critic

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    At this point I would probably r/r the inverter pump, clear the codes and see what happens. If that does not resolve the issue, I would consider having an independent shop install a used inverter - there are plenty of those around.

    The dealer probably recommended the Inverter Repair as their CYA, to prepare you for the worst case scenario.
     
    #22 The Critic, Feb 5, 2018
  3. gpk

    gpk New Member

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    Thank you Critic! I have an appt with a private repair shop tomorrow and they said they'd replace the inverter pump without even doing their own diagnostic. Some of the private shops said they wouldn't do anything without their own diagnostic. I am reluctant to pay for that again after already paying $140 for the dealer to tell me the same codes my long-time mechanic told me for free. Again, thank you!
     
    #23 gpk, Feb 6, 2018
    The Critic and Raytheeagle like this.
  4. Joe Chanes

    Joe Chanes New Member

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    Mar 13, 2022
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    Location:
    Ellensburg
    Vehicle:
    2011 Prius
    Model:
    Five
    I have this same issue but with only the P0A93 code, i swapped out the pump with a new one and flushed the system. Cleared the error code, and when i went to bleed the system by starting it nothing happened. Except now i have the christmas tree on the dash with "check hybrid system" and it wont let me put the car in gear. the motor under the hood wont do anything. i have reset the batteries multiple times and checked all fuses. Any suggestions? I thought it was odd if something else was wrong it wouldnt trip any other codes.
     
    #24 Joe Chanes, Mar 13, 2022
  5. ChapmanF

    ChapmanF Senior Member

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    What trouble codes do you have now?

    There is sort of a PriusChat tradition of doing work on the HV system and not fully seating the handle of the orange service plug when putting it back. That gives you a P0A0D code and doesn't let you start the car.
     
    #25 ChapmanF, Mar 13, 2022
    Joe Chanes likes this.
  6. Joe Chanes

    Joe Chanes New Member

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    Vehicle:
    2011 Prius
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    Five
    I don’t have any codes after I cleared the original one. I’ve done the 12v reset 3 different times and reset the orange handle probably 10x. I have tried running new scan tool tests and it says I have zero codes to report
     
    #26 Joe Chanes, Mar 17, 2022
    Last edited by a moderator: Mar 17, 2022
  7. ChapmanF

    ChapmanF Senior Member

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    What scan tool are you using? Sounds like there are codes it's not reporting.
     
    #27 ChapmanF, Mar 17, 2022
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