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P3147-239

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Nor'easter, Feb 7, 2022.

  1. Nor'easter

    Nor'easter Member

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    My 2010 is set to hit the shop Wed for a new transmission input damper. Haven't been driving the car much, it clatters and rattles like the dickens. We're certain it's the transmission damper, the engine has been gone over with fine tooth comb, there are no issues there.

    Last night the car quit on my daughter and rolled to a stop with yellow triangle of death. After 20 minutes switched off, it restarted and she got home. I have a code P3147-239 with freeze frame data. At first blush, I'm thinking this is related to the existing damper problem. Can post FF data if needed (several pages). FF data includes "MG1 Inverter Shutdown... ON" and "MG2 Inverter Shutdown... ON", which explains dead on the side of the road.

    If anyone has deeper insight here, I'm all eyes and ears. Thanks.
     
    #1 Nor'easter, Feb 7, 2022
  2. ChapmanF

    ChapmanF Senior Member

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    My TIS subscription isn't paid up at the moment to look the P3147 code up in the manual (more info). I've quickly looked in a circulating PDF of the manual that somebody glommed together from a bunch of print-to-files, but the detail and workup section for that code seems to have escaped glomming, so in that PDF the only search hits for the code are the ones in the DTC chart.
     
    #2 ChapmanF, Feb 7, 2022
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  3. mr_guy_mann

    mr_guy_mann Senior Member

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    Glanced my service info- code is "hybrid transaxle input malfunction (shaft damaged)". Sure sounds like damper or trans shaft.

    Posted via the PriusChat mobile app.
     
    #3 mr_guy_mann, Feb 7, 2022
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  4. Nor'easter

    Nor'easter Member

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    Sadly, we let this go a little too long. So an extra $400 for a salvage transmission.

    TID.jpg


    Trans.jpg
     
    #4 Nor'easter, Feb 9, 2022
  5. ChapmanF

    ChapmanF Senior Member

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    Those look like pictures of a transmission damper whose coil springs have all been pounded to smithereens.

    Once that has happened, the car will make clatters and rattles just because the damper's got no springs.

    Something else was the original cause of the clatter that pounded the springs.
     
    #5 ChapmanF, Feb 9, 2022
  6. Nor'easter

    Nor'easter Member

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    Or it was just a run of crappy springs that didn't maintain their preload, or were under rated, or whatever.
     
    #6 Nor'easter, Feb 9, 2022
  7. ChapmanF

    ChapmanF Senior Member

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    I would be pretty surprised ... that aspect of how the Prius 'damper' is built is shared with pretty much every manual transmission clutch disc ever, kind of a mature product space.

    What was the mileage?
     
    #7 ChapmanF, Feb 9, 2022
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