p0a93 error, pump is working? 2008 Prius

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by ghostyroasty, Aug 27, 2016.

  1. ghostyroasty

    ghostyroasty Junior Member

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    Hey all, I've read up a lot on the error and in most cases, it is the inverter coolant pump. Mine is working and I can see turbulence in the reservoir. I did notice that the other coolant reservoir was dry however. I immediately filled it with the Toyota sllc. There was no change after meeting the car sit idling for a few minutes. Is there something else I can do myself? I'd much rather not go to the dealership!

    SM-G920F ?
     
    #1 ghostyroasty, Aug 27, 2016
  2. JC91006

    JC91006 Senior Member

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    Is there a red triangle lit up? Maybe the pump is not working to it's full potential or there is air in the system

    On the regular engine side, you have to make sure the coolant is full in the radiator itself...not just the reservoir. But that's not the cause of the error you mentioned....that is strictly from the cooling of the electric side of the car.
     
    #2 JC91006, Aug 27, 2016
  3. ghostyroasty

    ghostyroasty Junior Member

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    Yes the red triangle is lit up. Would that narrow it down to the pump specifically?

    SM-G920F ?
     
    #3 ghostyroasty, Aug 27, 2016
  4. jadziasman

    jadziasman Prius owner emeritus

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    According to the service manual these are the trouble areas that trigger a P0A93.
    Have fun pinpointing it if, as you say, the pump appears to be functioning.
    upload_2016-8-27_12-27-59.png
     
    #4 jadziasman, Aug 27, 2016
  5. JC91006

    JC91006 Senior Member

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    p0a93 is usually the pump, but I have read others having turbulence with that code as well.

    There's a recall on this pump, if you have not done it yet, the dealer will do it for free
     
    #5 JC91006, Aug 27, 2016
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