Need a crash course on PIP

Discussion in 'Gen 1 Prius Plug-in 2012-2015' started by Frontporch, Nov 14, 2022.

  1. Frontporch

    Frontporch Member

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    I do remeber you pointed out the inverter in an earlier post. Is there a lifespan for those? I thought the gen2 version was good as long as it was kept cooled. Is it the entire inverter or just the pump?
     
  2. bisco

    bisco cookie crumbler

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    gen 2 inverters are fine. gen 3 inverters are involved in a class action lawsuit. there's no time frame, just random.
    it's not the pump, just the inverter, a module inside i think.
     
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  3. Frontporch

    Frontporch Member

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    Interesting. I had a gen2 pump fail on the road away from home and the dealer repaired it. He said I was lucky I didn’t overheat the inverter because that would cost $3k. I had a feeling I could get one from a u-pull it lot for $50 and it would most likely work

    so that makes me think. If the failure rate is high (like the brake actuator and motor) then good replacements are not cheap. In the case of the ABS booster pump you pay and pray I guess. How about the inverter? Can a good second hand unit be inexpensive or can the converter be repaired?
     
  4. Frontporch

    Frontporch Member

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    Was there a settlement this year that covers the inverter?
     
  5. ChapmanF

    ChapmanF Senior Member

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    Gen 3 inverters are involved in a proposed settlement that will (if approved in late January or so) extend an existing fifteen-year, unlimited-mile coverage to twenty years. Nice to know, but not a huge change to the situation on the ground, as there aren't any Gen 3s that are even fifteen years old yet.
     
  6. Frontporch

    Frontporch Member

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    Ok. So the inverter is repaired at no cost. Question is then does it leave you stranded
     
  7. bisco

    bisco cookie crumbler

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    pretty sure it shuts you down, or at least i have read a few died at highway speed.

    wondering if the pip inverter is the same part as non pip
     
  8. ChapmanF

    ChapmanF Senior Member

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    G9200-49025 for non-pip, -49046 for pip
     
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  9. Mendel Leisk

    Mendel Leisk Witness Leader

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    There was a (free) software update, to better protect the inverter during sudden acceleration; dealership would be able to check if it's been done.
     
  10. bisco

    bisco cookie crumbler

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    and reports of failed inverters after the update :(
     
  11. ChapmanF

    ChapmanF Senior Member

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    Part of that, of course, will come down to how old different cars were before getting the update, and how they had been driven and how much of a beating the inverter had taken during that time.

    The other part is that even eliminating a fixable early-failure issue never made any car part immortal.
     
  12. Mendel Leisk

    Mendel Leisk Witness Leader

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    Yeah I doubt it's perfect, but still I'd think it helps. One issue, and @ChapmanF might shed more light: the software update instruction (for service departments) was confusing, might have lead to incomplete/botched updates.

    We got it when the notice came out, seemed ok, and gave the slightly greater propensity to go electric-only. I noticed this, didn't say anything about it, then my wife mentioned the same thing.
     

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  13. ChapmanF

    ChapmanF Senior Member

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    There was one recall, E0E (I think for Prius v it was called F0R), that was supposed to change some firmware in both the MG ECU and the power management control ECU.

    There was a later recall, J0V, that was mainly to fix one additional issue (let's not have a failure shut the system off completely), but there was also a lingering puzzle where some cars that had already been in for E0E or F0R were still having the same kinds of failure.

    And it was turning out that those cars had the right firmware version in the power management control ECU, updated during the E0E/F0R recall, but still had the old firmware in the MG ECU! The way the E0E/F0R technician instructions were written, there was one place where that MG ECU update step was skipped. Proofreading. :(

    There were other places in the instructions where the step wasn't skipped, and there were steps at the end to confirm both updates had been done, but you could see how certain techs, after doing a few, might have gotten into a rhythm where they were just looking at that one page in the instructions where the step was missing, and not doing it. More on the story is here.

    So in the later J0V recall, they really did two things: (1) apply the new fix for not powering off, and (2) check the MG ECU firmware and make absolutely, positively, totally sure it really did get updated, either in the earlier recall, or here and now if it wasn't then.

    You can tell they were embarrassed about that part. They wrote a whole new Calibration Update Wizard plugin for Techstream that would check for the update itself, and make sure it was done, and report up to a national database that it had been done. Clearly, they didn't want to hear any more stories about updates that were missed.
     
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  14. Frontporch

    Frontporch Member

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    Do you know if both covered under the warranty?
     
  15. Frontporch

    Frontporch Member

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    So I am admittedly pretty lazy and ask before researching, but my previous question about if the inverter for a PIP is also covered was not answered in any of the literature I found online. It sounds like if a PIP owner did not receive a notice about a recall to the car's software related to the inverter issues then maybe the PIP is not effected. I can only hope that this means the PIP inverter is not prone to failure and NOT that it was just excluded.
     
  16. bisco

    bisco cookie crumbler

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    the only think i ever got was an offer for the free ipm update, and a 10 year warranty iirc
     
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  17. Frontporch

    Frontporch Member

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    Was hoping to verify.... as far as the brake repair goes, I think the most likely suspect is the ABS pump/accumulator (looks like two cylinders) from what I have read. It develops internal leaks and cannot hold pressure. Are the only sources for this part dealer new or a used part from a scrap yard? Nobody is rebuilding these?
     
  18. ChapmanF

    ChapmanF Senior Member

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    The two-cylinders-looking thing is the lower unit of these two:

    [​IMG]

    The two units are piped together, unsurprisingly, so when internal leaks develop, the pressure in the accumulator drops and the pump is what has to run to bring the pressure back up, but that doesn't tell you which unit has the internal leaks. The upper one (brake booster, master cylinder, actuator, those are all names for it) contains the vast majority of the valves, though, and that's a strong hint on which way to bet.

    That turns out to be a blessing, as access to replace the upper thing is considerably easier than for the lower.

    Sometimes a mechanics' stethoscope will let you listen in both units for the leak, before you place your bet.
     
  19. Frontporch

    Frontporch Member

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    Well... that sucks. Looks like Ebay has lots of pumps but I don't see many Master cylinders.
     
  20. bisco

    bisco cookie crumbler

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    i suspect mine is going at 84k. when i open the drivers door in the morning, it runs for about 15 seconds. it has definitely deteriorated over the years.
    our 2013 hycam with similar mileage only runs about 3 seconds.