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2010 Prius Error Code and Check hybrid system warning light

Discussion in 'Newbie Forum' started by RC12, Apr 9, 2018.

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  1. RC12

    RC12 New Member

    Joined:
    Apr 8, 2018
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    Location:
    pacifica
    Vehicle:
    2010 Prius
    Model:
    III
    I have 2010 Prius III 185k miles. "Hybrid System Check" light on after replacing all fuel injectors. OBD scanner shows code U0100. I can't reset it. I double checked all connectors and removed the negative wire from the battery for 15 mins to see if the code reset it, but the warning still exists. Please advise.
     
    #1 RC12, Apr 9, 2018
  2. RCO

    RCO Senior Member

    Joined:
    Aug 31, 2016
    3,709
    5,183
    0
    Location:
    Cornwall
    Vehicle:
    Other Hybrid
    Model:
    N/A
    I can't help you with this, but I can welcome you to Prius Chat.
    You might have to get it checked out by mechanic unless you get advice from someone else on here. Codes can be read using a cheap plug in device and an app on your smartphone, but it may not be simple DIY. I'm sure someone will help you soon, do please hang on a while longer.
     
    #2 RCO, Apr 11, 2018
  3. Raytheeagle

    Raytheeagle Senior Member

    Joined:
    Jul 1, 2016
    11,251
    15,476
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    Location:
    Bay Area, California
    Vehicle:
    2019 Prius Prime
    Model:
    Prime Plus
    Welcome to Prius Chat (y).

    U0100 is a generic lost communication with an ECM or PCM code, so more digging will be required ;).

    Some questions:
    • What scanner are you using?
    • Can you get te INF codes?
    • Do you know anyone with Techstream?
    • What prompted the fuel injector change?
    • Any other issues with your Prius?
    • Have you owned since new?
    Keep us posted(y).
     
    #3 Raytheeagle, Apr 11, 2018
    RCO likes this.
  4. jakester21

    jakester21 Junior Member

    Joined:
    Aug 1, 2018
    35
    4
    0
    Location:
    usa
    Vehicle:
    2005 Prius
    Model:
    Two
    i have the same problem but i connected tech stream to my car and it gave me these codes in the picture but my car the engine will not elven try to turn over but the electric side does work for a bit then it turns off
     

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    #4 jakester21, Nov 28, 2023
  5. jakester21

    jakester21 Junior Member

    Joined:
    Aug 1, 2018
    35
    4
    0
    Location:
    usa
    Vehicle:
    2005 Prius
    Model:
    Two
    i have the same problem but i connected tech stream to my car and it gave me these codes in the picture but my car the engine will not elven try to turn over but the electric side does work for a bit then it turns off
     
    #4 jakester21, Nov 28, 2023
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