B2430 LED Headlight LH

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by ToyotaCoyotta, Aug 24, 2025 at 4:53 AM.

  1. ToyotaCoyotta

    ToyotaCoyotta Junior Member

    Joined:
    Dec 12, 2024
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    Location:
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    Vehicle:
    2009 Prius
    Model:
    III
    Hello, I have the following DTC Fault on my prius, It always says check headlight system on the dashboard and the yellow triangle keeps flashing, its getting annoying.

    im not sure where is the issue because
    both of the headlights work fine.

    I tried changing the xenon module for that headlight because i have a spare one but it didnt help, so where exactly the issue is ?

    Can you please confirm if LH means the left hand headlight?
    att.xYltMq1tHoIIol05LIu03hbMa4gr1Cbb-beUhaXZ_Jw.jpeg
     
    #1 ToyotaCoyotta, Aug 24, 2025 at 4:53 AM
  2. Tombukt2

    Tombukt2 Senior Member

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    2009 Prius
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    Base
    Left hand as far as I know in fuse box on most they're lh and rh headlite fuses well in many . This model halogen had wiring issues in this systrm do not know about LED models other than not very repairs le and costly no aftermarket support yikes . And youve a spare board .
     
    #2 Tombukt2, Aug 24, 2025 at 8:00 AM
  3. Tombukt2

    Tombukt2 Senior Member

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    Base
    Did ya watch mid East video of the guys working on you're model they messing with fuse box a yellow wire off board and a test light . Look carefully at his wiring laying on fender to that module something between fuse box and module kinda like gen2 p conn error . So e kinda jumper or such but it working . Cool scanner he has brings up manual diagrams on fly automatically can't see name of tool .
     
    #3 Tombukt2, Aug 24, 2025 at 9:55 AM
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