Prius resets itself every time it's turned off

Discussion in 'Gen 2 Prius Technical Discussion' started by Aaron Vitolins, Feb 9, 2017.

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  1. Aaron Vitolins

    Aaron Vitolins Senior Member

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    I think it might be a fuse. Surly all the bulbs aren't burnt out a one time. I will try switching some bulbs form my Prius to this old one.

    So I replaced the MFD unit and it wasn't working. Turns out a fuse was blown from when the screen was punched in. I wonder if it could have blown more fuses other than that one. What do you think?
     
    #21 Aaron Vitolins, Feb 17, 2017
  2. Aaron Vitolins

    Aaron Vitolins Senior Member

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    Replaced the battery and still acts up! No battery level bars on the MFD, and still resets itself
     
    #22 Aaron Vitolins, Feb 18, 2017
  3. Sam Spade

    Sam Spade Senior Member

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    Did the new battery get charged BEFORE being installed (very important).
    The battery bars on the MFD are for the HV hybrid battery, not the 12 V one.
    I think you need professional help sorting this out; dealer or other shop that knows hybrids.
     
    #23 Sam Spade, Feb 18, 2017
  4. Aaron Vitolins

    Aaron Vitolins Senior Member

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    I understand that the battery bars are not for the 12v battery. I just think it's really odd that the arrows and battery graph have disappeared form a fully functioning and driving Prius. So weird!
     
    #24 Aaron Vitolins, Feb 18, 2017
  5. dolj

    dolj Senior Member

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    So my assumption is you mean when the car is in READY.

    Does it look the same as when you put it in ACC mode (1 press of the power button with foot OFF the brake)?

    Also, have you checked all the connections on the back of the MFD? Maybe pull each one and re-seat confirming they're all plugged in and fully connected (with a click, if applicable).
     
    #25 dolj, Feb 18, 2017
    Last edited: Feb 18, 2017
  6. Aaron Vitolins

    Aaron Vitolins Senior Member

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    Yes that's what it looks like! I guess that is a good next step, I'll remove it and reinstall
     
    #26 Aaron Vitolins, Feb 19, 2017
  7. jichi

    jichi Junior Member

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    i had similar problem and it was the battery cable was loose . make sure it is tight. thats why it keep resetting. unless the battery is defective or bad

    Posted via the PriusChat mobile app.
     
    #27 jichi, Feb 22, 2017
  8. Aaron Vitolins

    Aaron Vitolins Senior Member

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    Where was the cable loose? On the battery connection? I replaced the battery and made sure the connection was tight. Thanks for you reply!
     
    #28 Aaron Vitolins, Feb 22, 2017
  9. jichi

    jichi Junior Member

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    #29 jichi, Feb 22, 2017
  10. Qinti

    Qinti New Member

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    7 years later...
    So What was it?
    My 2009, keeps resetting and sometime doesnt even start...and then after 10 minutes, i try again and it starts...it sounds like 12V, but its brand new...i was rear ended not long ago, and since then the car started acting up...would the diagnostic find an issue at the hybrid battery? Im not even sure if the car would start at all if the hybrid had the issue...
     
    #30 Qinti, Jan 10, 2024
  11. ETC(SS)

    ETC(SS) The OTHER One Percenter.....

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    Aaron Vitolins was last seen:

    Jul 20, 2022
     
    #31 ETC(SS), Jan 11, 2024
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