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Can the battry fan be wired to a manual switch?/ Fan controller testing?

Discussion in 'Gen 2 Prius Main Forum' started by WadeM, Sep 27, 2021.

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  1. WadeM

    WadeM New Member

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    My battery in a 2005 Prius gets hot quick to 120+ and I'm in a hot climate. I'm thinking of wiring it direct with an on/off or variable switch that I control. Has anyone ever done this and would there be any issues giving it the full 12-14V from the auxiliary battery?

    Maybe better would be to test the fan controller. Can anyone advise me?

    The fan works and I have cleaned it.

    Thanks!
     
    #1 WadeM, Sep 27, 2021
  2. Skibob

    Skibob Senior Member

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    You can turn it on with several apps, no need to add a switch. Search the forum and you will find the answer.
     
    #2 Skibob, Sep 27, 2021
  3. bisco

    bisco cookie crumbler

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    scangauge for one
     
    #3 bisco, Sep 28, 2021
  4. TMR-JWAP

    TMR-JWAP Senior Member

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    or Hybrid Assistant

    I think direct wiring 12v to the fan would be a mistake. Pretty sure it would let out all the magic smoke if hit with 12v from a 'stopped' condition.
     
    #4 TMR-JWAP, Sep 28, 2021
  5. ChapmanF

    ChapmanF Senior Member

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    Pretty sure that's how you bench test it. That, and grounding the SI input. Smoke stays in, I think.
     
    #5 ChapmanF, Sep 28, 2021
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