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HELP! 05 Prius: Half of my monitors are throwing codes and have alll lights on

Discussion in 'Gen 2 Prius Main Forum' started by JordanMentz, May 16, 2018.

  1. JordanMentz

    JordanMentz New Member

    Joined:
    May 16, 2018
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    Location:
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    Vehicle:
    2005 Prius
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    N/A
    Help, my Prius has red triangle, check engine, VSC and orange exclamation point lights on! I have taken it to a nearby shop and they pulled these codes for me. Just under a year ago I had some of the cells replaced in the battery and ever since then it has ran great. But was on a trip home from Georgia to North Carolina and all of the codes came on while I was driving. What could be the issue and are all of these codes a huge issue? Please help!
     

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    #1 JordanMentz, May 16, 2018
  2. kenoarto

    kenoarto Senior Member

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    Location:
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    Vehicle:
    2005 Prius
    Model:
    II
    Cell replacement has not proven to be a long-term fix. Unless you want to go this cycle endlessly, it's probably time to get an all-new battery.
     
    #2 kenoarto, May 17, 2018
  3. Patrick Wong

    Patrick Wong DIY Enthusiast

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    Location:
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    Vehicle:
    2015 Prius
    Model:
    Two
    The engine ECU codes indicate that you have a vapor leak in the fuel tank or associated plumbing. Check the gas gap to make sure the O-ring is in good shape and the cap is tightened to one click. If that is OK then you should have a mechanic inspect the fuel system.

    The hybrid vehicle ECU codes indicate that the traction battery has failed.
     
    #3 Patrick Wong, May 17, 2018
    Raytheeagle and m.wynn like this.
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