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what's the bare minimum assembly for the HV battery to start and run prius

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by goodmania, Nov 1, 2018.

  1. goodmania

    goodmania New Member

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    I try to fix HV battery. I try to test drive if the HV battery working correctly but I don't want to put everything together yet to save the time, I did not put nuts on each battery cells just orange connector and connected every connections but did not install the covers, I just put two volt to hold the whole battery, and try to see the car is running, but the car won't start correctly, I cannot shift to D or R. what's the bare minimum I need to do for HV battery to start the car correctly and run?
     
    #1 goodmania, Nov 1, 2018
  2. bisco

    bisco cookie crumbler

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    This may be a first. I’ll be interested in the answer as well. Be careful around high voltage!
     
    #2 bisco, Nov 2, 2018
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  3. Raytheeagle

    Raytheeagle Senior Member

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    You need to torque the nuts to 48 INCH pounds;).

    Otherwise you have no connection.
     
    #3 Raytheeagle, Nov 2, 2018
    Last edited: Nov 2, 2018
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  4. bisco

    bisco cookie crumbler

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    That takes all the fun out of it:whistle:
     
    #4 bisco, Nov 2, 2018
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  5. Raytheeagle

    Raytheeagle Senior Member

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    Well if time is no object, do one thing at a time until it starts;).

    But the nuts would be first on my list (y).
     
    #5 Raytheeagle, Nov 2, 2018
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  6. SFO

    SFO Senior Member

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    Welcome to PriusChat!!

    What OBD2 codes are being thrown, as they will point you in the right direction.

    Not sure which two bolts you used to "hold the battery down", but the HV battery will need to be grounded to the chassis.
     
    #6 SFO, Nov 2, 2018
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  7. JC91006

    JC91006 Senior Member

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    You need to put all the nuts onto the battery modules. Without that, there's no connection.

    Be sure not to kill yourself when working with high voltage
     
    #7 JC91006, Nov 2, 2018
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  8. exstudent

    exstudent Senior Member

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    1) Competency.
    2) Laziness is counter productive, and may be detrimental to your health.
     
    #8 exstudent, Nov 3, 2018
  9. jerrymildred

    jerrymildred Senior Member

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    There's an old joke about a half a glass of water. Optimists say it's half full, pessimists say it's half empty, and engineers say it's too big of a glass.

    The engineers who designed the battery had a reason for every part on there, and trust me -- engineers don't waste time and money on bling in the hybrid system because it would add unnecessary weight. Nothing is there just for looks. As @JC91006 said, it won't work if you don't tighten every fastener.
     
    #9 jerrymildred, Nov 3, 2018
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  10. RRxing

    RRxing Senior Member

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    In the time it took you to post here and wait for a reply you could have put everything back together properly, be up and running, and not have to post here...
     
    #10 RRxing, Nov 3, 2018
  11. strawbrad

    strawbrad http://minnesotahybridbatteries.com

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    This sounds like the orange safety plug has not been properly installed. It's a common mistake for first time battery work. To install the orange plug, push it in, flip the lever up, and then push the lever straight down. It's that third step that trips up newcomers.

    As others have said, the case needs to be grounded to the car body. It sounds like the two bolts you installed took care of this. Of course all the nuts need to be installed and torqued to 48 inch pounds on every battery module. Plug in the computer connections and you should be good to go for a test run.
     
    #11 strawbrad, Nov 3, 2018
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