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Reduce output power mensage

Discussion in 'Prius v Care, Maintenance and Troubleshooting' started by Carlos campos, Jul 25, 2020.

  1. Carlos campos

    Carlos campos New Member

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    Hi guys, i'm New in Prius family. I owed 2016 Prius and i got this mensagem: reduce output power with yellow triangle. I need help, this car only have 34K Miles.
     

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    #1 Carlos campos, Jul 25, 2020
  2. jerrymildred

    jerrymildred Senior Member

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    Welcome, Carlos. You either need a code reader that'll read Prius codes, or take it to a dealer to have them read it. Either one is cheaper and faster than guessing. It could be any number of things.
     
    #2 jerrymildred, Jul 25, 2020
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  3. Carlos campos

    Carlos campos New Member

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    V
    My mechanical pull a code PO6579E ( voltage "A" on the actuator locked in the on position), he used to work in Toyota shop but he cannot figure It out. I Just want to know before i take my Prius to Toyota shop. Someone know this code?
     
    #3 Carlos campos, Jul 26, 2020
  4. bisco

    bisco cookie crumbler

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    that's a throttle actuator power supply ecm problem. do you know the history of the car?
     
    #4 bisco, Jul 26, 2020
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  5. Carlos campos

    Carlos campos New Member

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    So problaly is the sensor locate on the throtle body? I dont have the history of the car but what i know is that i bought from a auction. The car was running i even drove for a minute in the EV mode and now the hybride os not charging
     
    #5 Carlos campos, Jul 26, 2020
  6. Carlos campos

    Carlos campos New Member

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    V
    So problaly is the sensor locate on the throtle body? I dont have the history of the car but what i know is that i bought from a auction. The car was running i even drove for a minute in the EV mode and now the hybride os not charging
     
    #6 Carlos campos, Jul 27, 2020
  7. bisco

    bisco cookie crumbler

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    i think it is the ecm output voltage. any chance the car was flooded?
     
    #7 bisco, Jul 27, 2020
  8. bisco

    bisco cookie crumbler

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    is the mechanic following the troubleshooting in the service manual?
     
    #8 bisco, Jul 27, 2020
  9. Carlos campos

    Carlos campos New Member

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    i just called a insurance company and found out that the car was flooded. i dont have idea what is the level of water because the car was very clean with no show of waterline. that any way the ECM output voltagem to be flash ?
     
    #9 Carlos campos, Jul 28, 2020
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  10. bisco

    bisco cookie crumbler

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    sorry to hear it.

    i don't know anything about it. your best bet would be tech stream and the service manual.
     
    #10 bisco, Jul 28, 2020
  11. Carlos campos

    Carlos campos New Member

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    Hi guys, i took it off the ECM beside of fuse box ( motor compartment) and was damage by water, that i think was somebody try to car washer the engine and somehow got water inside the ECM and the plug. look the picture. i bought a used part with the same OEM number.
    i will put back together and reprogramming. soon i will tell what happens. thanks!!!!!
     

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    #11 Carlos campos, Jul 28, 2020
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  12. bisco

    bisco cookie crumbler

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    wow, i would never power wash the engine bay, good find!(y)
     
    #12 bisco, Jul 28, 2020
  13. Carlos campos

    Carlos campos New Member

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    hey guys, just want to resume what happend to my car e how i fixed. as i show above the pictures, the old ECM was bad, so i bought a good used one, same part number and had replace and reprogramming. now the car runs fine, no lights on.
    Tip: Never try to wash the engine bay.
     
    #13 Carlos campos, Aug 18, 2020
    jerrymildred and Air_Boss like this.
  14. Air_Boss

    Air_Boss Senior Member

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    What did you use to reprogram the ECM to the original VIN?
     
    #14 Air_Boss, Aug 18, 2020
  15. David9962000

    David9962000 Member

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    Where is the car from? I see it's in metric. Or how did you convert the temperature to Celsius?
     
    #15 David9962000, Aug 18, 2020
  16. Carlos campos

    Carlos campos New Member

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    The shop used the techstream program from toyota.
     
    #16 Carlos campos, Aug 19, 2020
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  17. Carlos campos

    Carlos campos New Member

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    from Brazil, but you can go in the configuration icon and convert celsion to fahrenheit ou looking in the manual book.
     
    #17 Carlos campos, Aug 19, 2020
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