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Prius codes P3019 and P1E01. Help!

Discussion in 'Gen 4 Prius Technical Discussion' started by John Wagner, Apr 2, 2022.

  1. John Wagner

    John Wagner New Member

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    Getting code P3019 and P1E01! I reset the system and the car was fine for about 10 minutes and the codes came back.
     
    #1 John Wagner, Apr 2, 2022
  2. bisco

    bisco cookie crumbler

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    what do they mean?

    what code reader are you using?

    how many miles on her?
     
    #2 bisco, Apr 3, 2022
    Mendel Leisk likes this.
  3. ChapmanF

    ChapmanF Senior Member

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    Neither P3 codes nor P1 codes are standardized by SAE across cars, so if those are from a Gen 4 Prius, the place to find out what they mean would be a Gen 4 Prius repair manual (more info).

    My subscription isn't paid up at the moment, so I can't easily go look.

    By analogy to some earlier Prius generations, my guess for P3019 would be deterioration in the ninth block of modules in the traction battery. P1E01 I don't have a guess for.
     
    #3 ChapmanF, Apr 3, 2022
  4. John Wagner

    John Wagner New Member

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    Using Dr Prius. Car has about 150k on it. The graphical battery display showed higher voltage on cell 9 which I thought is weird.
     
    #4 John Wagner, Apr 3, 2022
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  5. John Wagner

    John Wagner New Member

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    Ok thanks. Yeah the 9th block shows about a volt higher than the rest which I thought is weird. The best answer for the other code was for the battery control module. I cleared the codes by disconnecting both batteries and went for a drive. Everything seemed normal for a couple miles and then the Hybrid system malfunction warning came back on. I also noticed the fan coming on and the battery stopped contributing power.
     
    #5 John Wagner, Apr 3, 2022
  6. bisco

    bisco cookie crumbler

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    ?
     
    #6 bisco, Apr 3, 2022
  7. ChapmanF

    ChapmanF Senior Member

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    What is this business with adding an unedited quote, no relevant info, and a question mark, on a thread where someone has posted a question and others are at work on responding to it?
     
    #7 ChapmanF, Apr 3, 2022
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