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2004 Prius Won't Start At All

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by whatamidoing, Oct 15, 2015.

  1. whatamidoing

    whatamidoing New Member

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    Hi guys, I'm new here on behalf of my dad. His 2004 Prius start despite the auxiliary battery being fully charged. No lights come up on the dash, except for the door ajar light and the blinkers when the car is locked with the key fob. Can anyone think of any possible explanations? Perhaps a solution as well? Also, we cannot scan any codes because the car doesn't power on at all.
     
    #1 whatamidoing, Oct 15, 2015
    Last edited: Oct 15, 2015
  2. Eclipse1701d

    Eclipse1701d Prius Enthusiast

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    Three Touring
    It can be quite a few things. I would start by pulling the large fuses, located under the hood. I am not familiar with what each one does, but at this point, it would be a starting point.
     
  3. Patrick Wong

    Patrick Wong DIY Enthusiast

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    1. When was the last time the car worked correctly?
    2. What happened to the car between #1 and now?
     
  4. The Electric Me

    The Electric Me Go Speed Go!

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    I'd ask Patricks two questions and add a third.

    How do you know the Auxiliary Battery is fully charged?
     
  5. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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    if the battery is charged, is that charge getting to the fuse block under the hood?
     
  6. bisco

    bisco cookie crumbler

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    2012 Prius Plug-in
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    Plug-in Base
    is the dome fuse okay?
     
  7. bisco

    bisco cookie crumbler

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    Plug-in Base
    how many miles on her?