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location for dark grey "earth screw" for 2005 Prius hv battery

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by wddanie, Oct 17, 2017.

  1. wddanie

    wddanie Junior Member

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    Does it matter where the dark grey "earth screw" for my 2005 Prius hv battery is installed? If so, what is the correct location for the earth bolt? I recently installed a new battery and forgot which hole the earth bolt was located in.

    Thanks,

    Doug
     
    #1 wddanie, Oct 17, 2017
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  2. edthefox5

    edthefox5 Senior Member

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    Have not heard the term "dark gray earth screw" concerning the hv battery ever mentioned on this site before.The battery itself is not commoned to the car chassis just the case. The battery is isolated from car.
    In the future use your smart phone and take pictures of everything you see at every stage.
     
    #2 edthefox5, Oct 17, 2017
  3. JC91006

    JC91006 Senior Member

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    It goes behind the driver's seat. First spot
     
    #3 JC91006, Oct 17, 2017
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  4. JC91006

    JC91006 Senior Member

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    All the mounting bolts to the battery are the same, except for that 1 gray "earth" bolt. It would be confusing for a first timer when taking the battery apart.
     
    #4 JC91006, Oct 17, 2017
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  5. edthefox5

    edthefox5 Senior Member

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    These are all case bolts that bolt the case to the car?
     
    #5 edthefox5, Oct 17, 2017
  6. JC91006

    JC91006 Senior Member

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    yes case bolts
     
    #6 JC91006, Oct 17, 2017
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  7. edthefox5

    edthefox5 Senior Member

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    I think I remember one bolt the one thats used to secure the cover for the relays to the floor of the car that has a different colored bolt.

    Btw, JC how difficult is it to take the cover off the battery case without taking it out of the car? Can you get to all the bolt heads or does the whole box have to come out to get the cover off? Thanks.
     
    #7 edthefox5, Oct 17, 2017
  8. JC91006

    JC91006 Senior Member

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    It's very easy to take the cover off, 2 bolts on 1 side, 2 nuts on the other. Then 3 more bolts on the side holding the ecu compartment. All 10mm. Then use a 12mm to remove all the case mounting bolts

    You might want to remove the rear seats for easier access.
     
    #8 JC91006, Oct 17, 2017
    Last edited: Oct 17, 2017
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  9. wddanie

    wddanie Junior Member

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    Thanks for the location of the grey ground screw. I will move it to the original location.
     
    #9 wddanie, Oct 17, 2017
  10. Mavi

    Mavi Active Member

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    Wait.. first spot or the second spot? Does this matter ? I put it in the middle one.
     
    #10 Mavi, Oct 20, 2018
  11. JC91006

    JC91006 Senior Member

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    It doesn't really matter, it goes on the first spot
     
    #11 JC91006, Oct 20, 2018
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