2 weeks in and my 08 prius lit up like a Xmas tree.

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Itsnoc, Jun 26, 2022.

  1. Itsnoc

    Itsnoc New Member

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    Dublin, CA
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    2008 Prius
    Model:
    ----USA----
    Kind of upset because when I bought the car, it already needed an oil change, 4 tires, and rear brakes.

    2 days after, which was today, i gunned it to merge on 580, and boom! Xmas lights time.

    Mechanic made an odd comment that it looked like someone had cleared the codes to hide problems with the car, but I had just did a weekend in Paso Robles (6 hour round trip) and drove a bit down there.

    It's throwing the following codes:

    P3193
    P2238
    HVECU?
    PGA93
    P0A0F
    C1241
    C1242
    C1311
    C1313

    The AC kicked off for a bit, then came back. Also, while driving it to the mechanic, I'd occasionally get this high pitched squeal and the break light would come on.

    I do this it's odd that the car is still running decently, just says on my dash that the EV motor isn't running, with the orange car in the top right corner with an exclaimation.

    Hoping that it's just my Flux capacitor being twitchy (kidding).

    I shall await responses while cowered under the covers. Thank you! 20220625_161243.jpg 20220625_154249.jpg
     
  2. Tombukt2

    Tombukt2 Senior Member

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    Okay first thing to check and make sure that the 12 volt battery is good so it's showing 12 volts at rest and about 13.5 when the car is ready even with Christmas tree lit up see if that's so or see if your battery is falling below 11 volts or any of that nonsense One of the first things to check
     
  3. SFO

    SFO Senior Member

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    Welcome to PriusChat!!

    The workups below are a bit dated (2004), but should help a bit with diagnosis. You may want to do a search for an updated manual.
    Start by making sure the inverter pump is functioning properly, liquid and movement in the reservoir, and vibration in the pump (touch it with a finger, pencil or stick). Use techstream to find the INF (subcode) for DTC P0A93, that way you can narrow the problem down a bit.

    Here is the workup for DTC P0A93 (w/ unknown INF) : https://share.qclt.com/%E4%B8%B0%E7%94%B0%E6%99%AE%E7%91%9E%E6%96%AF%E5%8E%9F%E5%8E%82%E8%8B%B1%E6%96%87%E6%89%8B%E5%86%8Cpdf%E6%A0%BC%E5%BC%8F/Repair%20Manual/04pruisr/05/21bpm/0a93346.pdf

    Inverter coolant pumps (P0A93) don't last forever, when was it last replaced?

    Here is the workup for DTC P2238 : https://share.qclt.com/丰田普瑞斯原厂英文手册pdf格式/repair manual/04pruisr/05/2054m/cip2238.pdf

    If replacing the upstream A/F sensor (P2238), many will choose toyota OEM or the Denso option.

    Here is the workup for DTCs C1241 and C1242 : https://share.qclt.com/%E4%B8%B0%E7%94%B0%E6%99%AE%E7%91%9E%E6%96%AF%E5%8E%9F%E5%8E%82%E8%8B%B1%E6%96%87%E6%89%8B%E5%86%8Cpdf%E6%A0%BC%E5%BC%8F/Repair%20Manual/04pruisr/05/21avn/cic12414.pdf

    Here is the workup for DTC C1313 and C1311 : https://share.qclt.com/%E4%B8%B0%E7%94%B0%E6%99%AE%E7%91%9E%E6%96%AF%E5%8E%9F%E5%8E%82%E8%8B%B1%E6%96%87%E6%89%8B%E5%86%8Cpdf%E6%A0%BC%E5%BC%8F/Repair%20Manual/04pruisr/05/21avn/cic13111.pdf

    Let us know if you need additional guidance or workups, or do a advanced search in the gen2 forums.

    FYI : you're moderated until you've posted 5 times.
     
  4. Itsnoc

    Itsnoc New Member

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    Dublin, CA
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    2008 Prius
    Model:
    ----USA----
    Thanks!

    It ended up being the inverter pump. It's been about 2 weeks since I had it replaced - they hit me for $500. I just bought this one - so hopefully that's the only hiccup for awhile.

    This was the original pump - and I know they're good for about 150k - this car has 154k miles on it, so I'm sure it was just bad timing.

    Battery seems to be in good shape!
     
    SFO likes this.
  5. edthefox5

    edthefox5 Senior Member

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    They don’t last anywhere near 150k miles.
     
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