Intermittent driver-side headlight

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by steve0826, Jul 9, 2025 at 3:50 PM.

  1. steve0826

    steve0826 Junior Member

    Joined:
    Feb 27, 2008
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    Location:
    Bellevue, WA
    Vehicle:
    2004 Prius
    My unsuccessful work so far:

    (1) Replaced HID lightbulbs. (Edit: Scratch this, no I did not change the lightbulb.)
    (2) Replaced driver-side headlight ballast

    Now I am suspecting the relay being the cause. Does anyone know what each prong (see picture) of Denso 567-0003 is for? Does this relay have left and right contact switches but open and close simultaneously? Screen Shot 2025-07-09 at 12.46.17 PM.png
     
    #1 steve0826, Jul 9, 2025 at 3:50 PM
    Last edited: Jul 9, 2025 at 8:42 PM
  2. Tombukt2

    Tombukt2 Senior Member

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    Location:
    Durham NC
    Vehicle:
    2009 Prius
    Model:
    Base
    Doubt it's the relay . Be interesting to see
     
    #2 Tombukt2, Jul 9, 2025 at 7:42 PM
  3. steve0826

    steve0826 Junior Member

    Joined:
    Feb 27, 2008
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    Location:
    Bellevue, WA
    Vehicle:
    2004 Prius
    Correct, it is not the relay. The problem is the HID lightbulb. See picture.

    PriusHIDProblem.JPEG
     
    #3 steve0826, Jul 9, 2025 at 8:41 PM
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