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Prius won't start correctly. just had the 12v changed

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Hach, Jan 17, 2018.

  1. Hach

    Hach Junior Member

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    So my battery died over the weekend, got it towed to Toyota and they replaced the 12v battery. I went out to start the car today and the lights come on like it normally would but the engine doesn't kick on. When I shut it off the P D R N don't shut off and just keep blinking. No triangle of death or anything.... any ideas? I can't really afford another tow..
     
    #1 Hach, Jan 17, 2018
  2. bisco

    bisco cookie crumbler

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    you need to check the 12v health, and also the connections. it is possible you have a bad MID.
     
    #2 bisco, Jan 17, 2018
  3. Hach

    Hach Junior Member

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    MID? Even if it's new it could be bad?
     
    #3 Hach, Jan 17, 2018
  4. Prodigyplace

    Prodigyplace Senior Member

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    I think he is referring to the combo meter that has the speedometer and the warning lights. If it goes bad, there can be unusual symptoms.
     
    #4 Prodigyplace, Jan 17, 2018
  5. Hach

    Hach Junior Member

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    I had that replaced last year under the recall, could it have gone bad again?
     
    #5 Hach, Jan 17, 2018
  6. Prodigyplace

    Prodigyplace Senior Member

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    I would not think so. Perhaps the new 12 volt battery was not fully charged.
    When you turn on the car, is the READY light lit?
     
    #6 Prodigyplace, Jan 17, 2018
  7. Hach

    Hach Junior Member

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    I don't think it does as the brake won't got to the floor to shift and no engine kicks on. When I try and turn it off the park, drive etc lights stay on and keep flashing and the center console stays on too.
     
    #7 Hach, Jan 17, 2018
  8. Prodigyplace

    Prodigyplace Senior Member

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    You may want to disconnect the 12v battery to see if you can get it to shut off before it drains the battery.
     
    #8 Prodigyplace, Jan 17, 2018
  9. Hach

    Hach Junior Member

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    I went back out and finally got it to go off. I put the key in instead of leaving it out and it turned off. Still won't start right but least the battery not drainimg
     
    #9 Hach, Jan 17, 2018
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  10. Prodigyplace

    Prodigyplace Senior Member

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    Is the key fob battery weak?
     
    #10 Prodigyplace, Jan 17, 2018
  11. Hach

    Hach Junior Member

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    It still opens the doors and everything fine and if it was bad it should still start when the keys inserted right?
     
    #11 Hach, Jan 17, 2018
  12. Mendel Leisk

    Mendel Leisk Senior Member

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    Have you got a multimeter? Check the voltage, at the under-hood jump start point is fine. A brand new battery, it should be reading at least 12.6.

    It does kinda sound like some sort of parasitic drain, to chime in.
     
    #12 Mendel Leisk, Jan 17, 2018
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  13. Hach

    Hach Junior Member

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    Got it to Prius today. They said it was most likely caused by ice build up on the brake relay switch. They couldn't find any other issue so hopefully that's it.
     
    #13 Hach, Jan 18, 2018
  14. bisco

    bisco cookie crumbler

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    i hope so!
     
    #14 bisco, Jan 18, 2018
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