OEM Foglight Switch vs Aftermarket

Discussion in 'Gen 2 Prius Accessories & Modifications' started by PriuSocal, Jun 30, 2025 at 5:02 PM.

  1. PriuSocal

    PriuSocal Member

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    I recently purchased a set of aftermarket fog lights from Amazon for my gen 2 (see photo of kit below) and read and saw how most everyone is complaining about the aftermarket switches they come with in regards to fitment in the spare slot. So i ran into a gen 2 with the OEM fog light switch which is in the wiper switch assembly so my question is, is there a way to wire up the OEM switch to aftermarket fogs that use that square switch to the OEM switch or would I need to run the specific harness off the OEM fogs for this?

    Anyone do this that can run by me a HOW TO or any ideas if it's even possible. I am not that inclined to read wiring diagrams lol as I get lost most of the time with them but more hands on if that makes sense.

    Thanks

    Screenshot 2025-06-30 at 2.00.09 PM.png
     
    #1 PriuSocal, Jun 30, 2025 at 5:02 PM
  2. PriuSocal

    PriuSocal Member

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    Anyone with this knowledge? I cant believe no one has attempted this here LMAO
     
    #2 PriuSocal, Jul 2, 2025 at 2:52 PM
  3. ChapmanF

    ChapmanF Senior Member

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    I've done it on a gen 3, using a Toyota stalk with the fog switch, and the relay and circuit they already built into the fusebox. But it's highly likely the details for gen 2 aren't all the same, so unless someone does come around with your exact answer, reading the diagram might be the fast way.

    Toyota Service Information and Where To Find It | PriusChat
     
    #3 ChapmanF, Jul 2, 2025 at 3:06 PM
  4. xliderider

    xliderider Senior Member

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    Seems like a lot of work and expense to go through to install the crappy OEM style foglights. The OEM foglights have no cutoffs, they put out light everywhere, except where you need it.

    SM-S936U ?
     
    #4 xliderider, Jul 2, 2025 at 3:09 PM
  5. ChapmanF

    ChapmanF Senior Member

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    I used the Toyota switch and wiring and grille openings, but Morimoto LED foglights. They're nice.

    Also, being LEDs, allowed me to put just a 3-amp fuse into the pre-existing FOG slot in the fusebox, instead of a 10-amp or whatever the original was supposed to be.
     
    #5 ChapmanF, Jul 2, 2025 at 4:01 PM
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