HELP PLEASE!! Triangle of Death w/check engine, VSC & Brake control lights.CAR NOT DRIVING! NO CODES

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by KlaustheOriginalHybrid, Dec 6, 2019.

  1. jerrymildred

    jerrymildred Senior Member

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    Are you sure that's a Hybrid capable code reader? Maybe someone like @JC91006 or @TMR-JWAP who have lots more experience can tell if these codes are bogus. They don't look right to me, but I'm not that experienced in interpreting those codes. A quick search of the Microscan manuals didn't turn up the word "hybrid" or "compatibility."
     
  2. ChapmanF

    ChapmanF Senior Member

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    They all remind me of real codes. (I think P3191 just means the engine cranked for too long without starting on some occasion.)

    The real thing to remember is those one-liner, fortune-cookie descriptions are next to useless. When you look up each code in the Repair Manual (more info), the first page will have a box giving the "detection condition", which tells you exactly what the ECU had to see to make it log that code. When you combine that information for the various codes you have, and start asking "what could have led to the ECU seeing these things", often a picture will start to emerge.
     
  3. jerrymildred

    jerrymildred Senior Member

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    Thanks, Chap. I should have thought of mentioning you, too! (y)
     
  4. SFO

    SFO Senior Member

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    Doubtful that OBD2 scanner is hybrid compatible, or the person isn't able to read the "sub-codes" (aka: INFs or secondary codes).

    As mentioned above, DTC P0A7A has 14 "sub-codes". Without knowing the sub-code(s) you would potentially need to follow through all 14 workups, which could be a jackpot for just about any mechanic, assuming if you have an open wallet/purse.

    You (or a mechanic) will need a "mini-vci cable" (and a copy of techstream) that costs about $20 online, or a Toyota hybrid compatible OBD2 scanner that offers "sub-codes". If you're unsure what a mini-vci cable (and the required techstream software) is, do a quick search. Most modern Toyota mechanics are using or should be using such (generally speaking).

    How much oil was it burning?
     
  5. TMR-JWAP

    TMR-JWAP Senior Member

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    The big problem here is that the car is trying to tell you what is wrong in hybrid language and your code reader/mechanic/whatever is trying to read it using a tool that doesn't understand it. Until you get an accurate code reading, you're just guessing. You're talking about throwing thousands of dollars into a transaxle job when it might be a couple hundred dollar job. You need to find someone/someplace that understands a Prius.
     
  6. KlaustheOriginalHybrid

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    Would this be suitable mini-vci cable?
    Mini Diagnostic Cable Tools For Toyota Lexus Scion TIS Techstream VCI J2534 OBD2 - Walmart.com


    I am looking and there is so many to choose from. Any suggestions for a specific kind/model? Any help is great again :)
    I am not willing to spend thousands of dollars for this issue, the car is LIMP MODE. I am able to turn it on now, but warning lights still all light up and car will not go faster than 25 mph. Still sounds like the car is dying from the inside. I should have ordered a mini-vci cable a long time ago to find sub codes....
     
  7. SFO

    SFO Senior Member

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    That should be fine. I noticed the firmware is v1.4.1, if you can find a cable with v2.0.1 that might be better. But don't stress it.

    Please don't try to upgrade the firmware on a mini-vci cable, as that will likely brick it and then have to repurchase.
     
  8. Priuslover09

    Priuslover09 Junior Member

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    It’s the 12v. Buy a new one from pep boys. It may help.
     
  9. SFO

    SFO Senior Member

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    Just to be clear, the 12v battery has already been charged/replaced. And the closest pepboys is over 200 miles away.
     
  10. Priuslover09

    Priuslover09 Junior Member

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    Why where is he from?
     
  11. SFO

    SFO Senior Member

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    They are from Northern California, about 100 miles south of the Oregon border.
     
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  12. Priuslover09

    Priuslover09 Junior Member

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  13. tallman

    tallman Junior Member

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    Picture s a big help

    Posted via the PriusChat mobile app.
     
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