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Red Triangle with Exclamation Mark

Discussion in 'Gen 2 Prius Technical Discussion' started by suthaharant, Nov 13, 2018.

  1. suthaharant

    suthaharant New Member

    Joined:
    Nov 13, 2018
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    Location:
    Toronto
    Vehicle:
    2007 Prius
    Model:
    Base


    I'm a 2007 Toyota Prius owner with 205,000 km (127,300 miles) driven on the vehicle. I live in Toronto, Canada, to give you an idea of the climate I live in.

    The last two seasons I've been noticing the red triangle and yellow exclamation mark lights come on whenever the temperature dips below 3°C (37°F). This usually happens in the morning when I start the car. If I've driven the car for a bit (usually 30 mins to 1hr) and I power off the car and start it again a little later, I notice the red triangle is usually not there. I didn't know what to do so I bought the techstream ODB reader combo and I've plugged it in to get a reading. I've attached the results.

    Can someone please guide me on where to go next. Any and all feedback is appreciated. techstream11.11.18.jpeg

    Posted via the PriusChat mobile app.
     
    #1 suthaharant, Nov 13, 2018
  2. bisco

    bisco cookie crumbler

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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
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    Plug-in Base
    welcome!
    the next step is to log onto tech info.toyota.com, and start the troubleshooting process in the service manual
     
    #2 bisco, Nov 13, 2018
  3. SFO

    SFO Senior Member

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    Vehicle:
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    Welcome to PriusChat!!

    Three of those DTCs (P0A08, C1241, C1377) have a small snowflake or flower icon on the column to the left, which indicates an INF (aka 'Detailed Code' or subcodes) which may help further diagnose the problem. Click on the small icon and post each of the reported INFs (subcodes) to a known DTC.

    Here are some workups for a few of your posted DTCs:

    P0A08 - 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/0a08264.pdf

    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

    C1377 - 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/cic13774.pdf
     
    #3 SFO, Nov 13, 2018
    Raytheeagle likes this.
  4. Skibob

    Skibob Senior Member

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    Location:
    Northern California
    Vehicle:
    2006 Prius
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    Can you do repairs yourself?
     
    #4 Skibob, Nov 13, 2018
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