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Codes P3000 P0A80. Still Starts and Drives Fine?

Discussion in 'Gen 2 Prius Technical Discussion' started by egon10psi, May 6, 2020.

  1. egon10psi

    egon10psi Junior Member

    Joined:
    Apr 23, 2017
    50
    2
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    Location:
    West Virginia
    Vehicle:
    2005 Prius
    Model:
    N/A
    I posted the other day about having these codes. It seems like all signs point to the hybrid battery. It's weird though, it runs and drives fine. The hybrid screen still shows that the battery is charging and draining when pressing on and off of the gas.

    The only other symptom we noticed is that the hybrid fan next to the back seat is always running now?

    How long can it go like this and what happens if/when the hybrid battery just stops working?

    Thanks!
     
    #1 egon10psi, May 6, 2020
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    get dr. prius app and check loaded voltages
     
    #2 bisco, May 6, 2020
    Last edited: May 6, 2020
  3. spdracrm3

    spdracrm3 Member

    Joined:
    Jun 23, 2019
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    Location:
    estacada or
    Vehicle:
    2004 Prius
    Model:
    V
    My 2004 did this never went into a limp home mode ,I got the doctor prius app and dongle and monitored voltages till figured out which cell was failing ,drove all week to work (could tell there was an issue as mileage dropped into the 30's and engine started and ran almost continuously, as well as hearing cooling fan run).
    Removed the cover on the weekend and voltage tested first 6 cells from right side of battery and confirmed which one app was indicating(think it was block 2 so lucky it was easier to remove from that end). Removed that cell (which was also bulging in the middle), replaced with a good used one and all is happy now and back to 52mpg.
    I think the earlier models are less likely to go into reduced power mode as I've worked on several 05-07 and they shut down with those codes and had to be towed to our shop.

    SM-G960U ?
     
    #3 spdracrm3, May 6, 2020
  4. egon10psi

    egon10psi Junior Member

    Joined:
    Apr 23, 2017
    50
    2
    3
    Location:
    West Virginia
    Vehicle:
    2005 Prius
    Model:
    N/A
    #4 egon10psi, May 11, 2020
  5. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    107,809
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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    i can't read it, but you can look through other threads that have the data on healthy and unhealthy voltages, and the max delta allowed
     
    #5 bisco, May 11, 2020
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