P0A94 code goes into limp mode and no flow in inverter reservoir. Just swapped inverter.

Discussion in 'Gen 3 Prius Technical Discussion' started by Jeremypeck0719, Jan 16, 2023.

  1. Jeremypeck0719

    Jeremypeck0719 New Member

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    Just swapped inverter after getting all lights lit up on dash, and throwing a P0A94 code. Car has been driving fine after a couple miles. Even getting 600 miles to the tank instead of 400. Now all of a sudden same thing happened again. Lights lit up on dash including triangle and went into limp mode. Had it towed to my house. And it had check engine light on. Put scanner on and had no codes, just in monitor it had a P0A94. Cleared check engine light with scanner and all lights went off and now drives perfectly normal. Its driving me crazy! I dont see flow in inverter reservoir. But feeling hose and listening to pump it seems to be working! Let me know what ypu think thanks
     
  2. bisco

    bisco cookie crumbler

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    Where did you buy the pump?
     
  3. ASRDogman

    ASRDogman Senior Member

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    You may be hearing the pump, but you don't see the water flowing. I don't think the
    pump is working. They about $120, worth changing...
     
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  4. Jeremypeck0719

    Jeremypeck0719 New Member

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    Never put a new pump just new inverter
     
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  5. Jeremypeck0719

    Jeremypeck0719 New Member

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    I will order new pump and replace it, thanks
    Im thinking it was never the inverter it was the coolant pump.
     
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  6. ASRDogman

    ASRDogman Senior Member

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    It's such a pain to replace the pump, you basically have to remove the inverter
    to get to it, so it's best to replace it while the inverter is out.

    It's better to do a diagnoises before replacing parts.. (y)

    Hope the new pump resolves the problem.

     
  7. bisco

    bisco cookie crumbler

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    get an oem from the dealer, a lot of black market pumps out there
     
  8. Jeremypeck0719

    Jeremypeck0719 New Member

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    Ya i replaced pump drove it a couple hundred miles now a P0C73 just came up on my wifes commute to work! Cant win with this car!
     
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  9. bisco

    bisco cookie crumbler

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    oem from dealer? if so, maybe it's a wire/connector problem
     
  10. Jeremypeck0719

    Jeremypeck0719 New Member

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    No online.... not an oem. When i installed it after draining entire system and bleed it out with putting in ready mode. pump turned on and filled system and i did it like 3 times until sytem was full. Drove it a couple hundred miles and now this code comes up! P0C73..
     
  11. Jeremypeck0719

    Jeremypeck0719 New Member

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    You think the new pump already failed?
     
  12. bisco

    bisco cookie crumbler

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    there have been a lot of reports here of black market chinese junk that fails quickly.
    any movement in the reservoir?
     
  13. Jeremypeck0719

    Jeremypeck0719 New Member

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    Dont see any now! Just code P0C73 keeps coming up! I guess i will replace pump again?
    Best place to buy an OEM? No dealer near me!
     
  14. Mendel Leisk

    Mendel Leisk Patron saint of newly poured sidewalks

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  15. Jeremypeck0719

    Jeremypeck0719 New Member

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  16. bisco

    bisco cookie crumbler

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    You’ll have to go online to camelback Toyota or other
     
  17. Jeremypeck0719

    Jeremypeck0719 New Member

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    Ya i see slight movement inside reservoir when in ready mode. Maybe trapped air bubbles? I also hear pump....
     
  18. Jeremypeck0719

    Jeremypeck0719 New Member

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    Black market pump is no good! Ordered oem pump just now will receive it Sunday!
     
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  19. bisco

    bisco cookie crumbler

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