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.

Tags:
  1. WadeM

    WadeM New Member

    Joined:
    Aug 14, 2021
    1
    0
    0
    Location:
    Massachusetts
    Vehicle:
    2005 Prius
    Model:
    Two
    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

    Joined:
    Sep 14, 2018
    2,912
    1,497
    0
    Location:
    Northern California
    Vehicle:
    2006 Prius
    Model:
    N/A
    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

    Joined:
    May 11, 2005
    110,456
    50,202
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    scangauge for one
     
    #3 bisco, Sep 28, 2021
  4. TMR-JWAP

    TMR-JWAP Senior Member

    Joined:
    Aug 12, 2016
    6,404
    6,063
    0
    Location:
    Columbia, SC
    Vehicle:
    2007 Prius
    Model:
    Touring
    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

    Joined:
    Mar 30, 2008
    25,094
    16,363
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    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
(You must log in or sign up to post here.)