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Help 2007 toyota prius

Discussion in 'Gen 2 Prius Technical Discussion' started by Jpepsi, Nov 30, 2015.

  1. Jpepsi

    Jpepsi New Member

    Joined:
    Nov 30, 2015
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    Location:
    Eastbay to sf
    Vehicle:
    2007 Prius
    Model:
    ----USA----
    I had my Prius check out and gave me these trouble codes couples battery's low he has a red triangle
    P0A78??
    P3000
    P0A80
    P03014
    P0315
    The battery's rating 13.5 volts
    Will always trouble codes go away after replacing the battery I added inverter to it because it was it was dying after 50 miles per hour then it slowed down??
     
    #1 Jpepsi, Nov 30, 2015
  2. jdenenberg

    jdenenberg EE Professor

    Joined:
    Nov 21, 2005
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    Location:
    Trumbull, CT
    Vehicle:
    2020 Prius
    Model:
    LE AWD-e
    The battery codes are about your HV (Traction) battery, not the 12v battery. There are many threads discussing your repair options, but it does run into the low 3 figures ($) to do a repair.

    13.5v is when the 12v battery is charging; to tell if the 12v battery is still good, you need to test the resting voltage (when the Prius charging circuit is not active - it should be about 12.5v - more if the battery is new) and under load (again with the charging circuit inactive - it should stay above 12v).

    JeffD
     
    #2 jdenenberg, Nov 30, 2015
  3. Jpepsi

    Jpepsi New Member

    Joined:
    Nov 30, 2015
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    Location:
    Eastbay to sf
    Vehicle:
    2007 Prius
    Model:
    ----USA----
    I add a pice of the. diagnostics menu and report
     

    Attached Files:

    #3 Jpepsi, Nov 30, 2015
  4. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    looks like you need a new hybrid battery. 3-4k new, or get a rebuilt doorman of $1500.
     
    #4 bisco, Nov 30, 2015
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