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Check headlight LED Conversion

Discussion in 'Gen 3 Prius Technical Discussion' started by Nhum Costner, Mar 24, 2023.

  1. Nhum Costner

    Nhum Costner New Member

    Joined:
    Mar 24, 2023
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    Location:
    Virginia
    Vehicle:
    2010 Prius
    Model:
    V
    Greetings,
    I am new to this forum and was hoping someone had the same problem. I recently purchase a 2010 Prius V. It came with HID/LED projector lens. They were not bright and it was difficult driving in the rain at night. I did some research and decided to replace the whole assembly with new LED bulbs. New headlights are woriking but I am getting a check headlight on the display instrument. I have disconnected the headlight leveling computer and installed LED canbus. Issue remains. Only thing I can think of is the blue wire in picture that send signal to the dash computer. It is currently taped off. Can you bypass this feature or does the wire needed to be attached somewhere? Appreciate any input. Thanks in advance.

     
    #1 Nhum Costner, Mar 24, 2023
  2. Tombukt2

    Tombukt2 Senior Member

    Joined:
    Nov 29, 2020
    10,461
    1,814
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    Location:
    Durham NC
    Vehicle:
    2009 Prius
    Model:
    Base
    Where was the blue wire on your other headlight assembly what does it go to a circuit aboard? He may need to get that board piece out if you can put the wire back on it wrap it and tape and just let it hang in the car under the hood wherever tape it to a wiring harness I'm not sure about this setup and I don't have the wiring diagram nearby for this model.
     
    #2 Tombukt2, Mar 24, 2023
  3. Nhum Costner

    Nhum Costner New Member

    Joined:
    Mar 24, 2023
    2
    0
    3
    Location:
    Virginia
    Vehicle:
    2010 Prius
    Model:
    V
    Blue wire came out of the ballast on the original headlight. I'm guessing it is telling the computer that headlight is working. So now the check headlight message is on due to no signal from the new headlight. I was wondering, if voltage is applied to that blue wire, would the warning stop? And if so, how much voltage?
    2010 Prius_4.JPG
     
    #3 Nhum Costner, Mar 24, 2023
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