Hybrid Battery Fail: Do Not Clear Trouble Codes with a Code Scanner

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Javier Oropeza, Oct 28, 2019.

Tags:
  1. Javier Oropeza

    Javier Oropeza New Member

    Joined:
    Oct 22, 2019
    10
    0
    0
    Location:
    Los Angeles
    Vehicle:
    2010 Prius
    Model:
    Three
    Hi! After years of stalking this site I am making my first post. I have a 2010 Prius that has been shutting down. Check engine light, Check Hybrid system, limp mode, death triangle etc. My wife was stranded so of course I went to pick her up armed with my code scanner. P0A80 replace Hv Battery? HMMMM! So I cleared it to get the car home. Day later same thing. Car shaking running like crap lights alarms drama! This time I told my wife to screen shot the codes then clear to get the car home. Up until last week I knew very little about HV batteries. I take care of my car regular maintenance. I purchased the Dr Prius App which concluded that my Battery is less that 30% with trouble at cell #7. uh oh. I do however have 143k mi with 1 more year left on the warranty (Cali ). So i decide to call my local dealership to check it out. This is where it gets weird. I told the dealership that I cleared the codes to get the car home. The dealership had to do some other warranty work so I left the car. When they called with the conclusion this is what the service guy said " We see that there is a P0A80 code pending but because it isnt confirmed Toyota said there is nothing we can do." Wth!!?? Called Toyota same thing Sorry cant help you til the car breaks down again. I have been driving the car to see if it will repeat that fail. But son far nada. Is it possible that the dealership could override the computer to not show the same codes? HELP!!
     
    #1 Javier Oropeza, Oct 28, 2019
  2. pingd

    pingd Member

    Joined:
    Aug 26, 2018
    97
    60
    0
    Location:
    Twin Cities, MN
    Vehicle:
    2013 Prius
    Model:
    Two
    I don't believe there is any known mechanism for the dealer to suppress codes.

    Might want to duplicate the same conditions as much as possible (AC running?, ambient temperature, EV/ECO/Power mode, etc).
    If the battery is failing the way you describe, it is surely just a matter of time before it throws the same codes again I reckon.

    But be careful where you try this ... when my Prius shutdown I had at most 5 secs to pull over before it stopped completely ... would have been super scary on the freeway/in bumper-to-bumper traffic!
     
    #2 pingd, Oct 28, 2019
  3. Javier Oropeza

    Javier Oropeza New Member

    Joined:
    Oct 22, 2019
    10
    0
    0
    Location:
    Los Angeles
    Vehicle:
    2010 Prius
    Model:
    Three
    D3A4EA9C-EAE1-46A7-A106-8100E230B887.jpeg

    I have been trying. When I run dr Prius app it shows less than 30% and p0a80 but isn’t confirmed
     
    #3 Javier Oropeza, Oct 28, 2019
    Last edited by a moderator: Oct 28, 2019
  4. iskoos

    iskoos Active Member

    Joined:
    Dec 24, 2017
    354
    223
    0
    Location:
    Orlando, FL
    Vehicle:
    2010 Prius
    Model:
    III
    Does the car really shutdown after the P0A80 code?

    My friend got this code a few times and we either cleared or disconnected the battery to clear the dash. Car throws the code once every several weeks (could be a month). Unfortunately, his car is way out of warranty.

    I was wondering myself how often this code would appear itself.

    So really would the car shut off? I never heard of this till now and would like to know more about it.

    Thanks
     
    #4 iskoos, Oct 28, 2019
  5. Javier Oropeza

    Javier Oropeza New Member

    Joined:
    Oct 22, 2019
    10
    0
    0
    Location:
    Los Angeles
    Vehicle:
    2010 Prius
    Model:
    Three
    My Prius would throw a bunch of codes but it doesn’t shut all the way down. It runs like crap though. I think that is the loop hole. How dead is dead.
     
    #5 Javier Oropeza, Oct 28, 2019
  6. iskoos

    iskoos Active Member

    Joined:
    Dec 24, 2017
    354
    223
    0
    Location:
    Orlando, FL
    Vehicle:
    2010 Prius
    Model:
    III
    As I said I never heard (except from pingd) that the car experiences shut off after the P0A80 code.
    Well technically it could be possible with a super weak HV battery. But we should be talking like almost the entire pack is gone not just a few modules. And I never heard this happen to anyone so far. It is generally one or two weak modules. And this is not enough to stop the car from running.

    What I realized from my friend's Prius is that the car never shuts off the gas engine if the P0A80 code is thrown and the Triangle of Death is on the dash. ICE keeps running.
    Is that what happened to your wife's Prius?

    Also, just wait a bit more, that code will come back. Nothing fixes itself.
     
    #6 iskoos, Oct 28, 2019
  7. Javier Oropeza

    Javier Oropeza New Member

    Joined:
    Oct 22, 2019
    10
    0
    0
    Location:
    Los Angeles
    Vehicle:
    2010 Prius
    Model:
    Three
    B83D7199-CD47-43F0-994D-C75D00395356.jpeg
    The code keeps popping up but it’s only pending. You’re correct the car doesn’t shut down completely. The check hybrid system light comes on and the car runs like crap. If this happens do not clear the codes. If the dealer can’t see the hv light they won’t fix the battery. Even if they see a pending or permanent code. B83D7199-CD47-43F0-994D-C75D00395356.jpeg
     
    #7 Javier Oropeza, Oct 28, 2019
  8. pingd

    pingd Member

    Joined:
    Aug 26, 2018
    97
    60
    0
    Location:
    Twin Cities, MN
    Vehicle:
    2013 Prius
    Model:
    Two
    Oh, sorry, I had different codes P3190, C1259, C1310 but got the triangle of death.
    I'm probably wrong here, but if you get the triangle of death, won't it always shutdown shortly?
    Or, even with the triangle of death, it can remain in limp mode for an extended period of time? (I guess then, that it depends on the exact codes on whether it goes into shutdown or limp?)

    Sorry if I alarmed you/am misinformed but that was my understanding until just now!
     
    #8 pingd, Oct 28, 2019
  9. Javier Oropeza

    Javier Oropeza New Member

    Joined:
    Oct 22, 2019
    10
    0
    0
    Location:
    Los Angeles
    Vehicle:
    2010 Prius
    Model:
    Three
    No worries I knew nothing about hv batteries until last week
     
    #9 Javier Oropeza, Oct 28, 2019
  10. iskoos

    iskoos Active Member

    Joined:
    Dec 24, 2017
    354
    223
    0
    Location:
    Orlando, FL
    Vehicle:
    2010 Prius
    Model:
    III
    No problem. It is about finding the correct information.
    No to your question. "Triangle of Death" doesn't mean the car will shut down soon.
     
    #10 iskoos, Oct 28, 2019
    pingd likes this.
(You must log in or sign up to post here.)
Loading...
Similar Threads - Hybrid Battery Fail
  1. napajan

    hybrid battery failure? Or?

    napajan, Jun 3, 2023 at 10:10 AM, in forum: Gen 3 Prius Care, Maintenance & Troubleshooting
    Replies:
    9
    Views:
    225
    PriusCamper
    Jun 3, 2023 at 3:42 PM
  2. pancake

    Hybrid battery needs to be replaced, but can I wait until I am able to drive it more frequently?

    pancake, May 12, 2023, in forum: Gen 3 Prius Care, Maintenance & Troubleshooting
    Replies:
    17
    Views:
    538
    Leadfoot J. McCoalroller
    May 14, 2023
  3. johnnychimpo

    What happens when your Hybrid battery fails

    johnnychimpo, Mar 11, 2022, in forum: Gen 3 Prius Care, Maintenance & Troubleshooting
    Replies:
    7
    Views:
    1,419
    iskoos
    Mar 20, 2022
  4. JacobP_2021

    BCM recall - HYBRID BATTERY FAIL

    JacobP_2021, May 13, 2021, in forum: Gen 3 Prius Care, Maintenance & Troubleshooting
    Replies:
    2
    Views:
    615
    bisco
    May 13, 2021
  5. mjkcal

    Any warning signs a gen3 hybrid battery is failing?

    mjkcal, Apr 21, 2021, in forum: Gen 3 Prius Care, Maintenance & Troubleshooting
    Replies:
    13
    Views:
    3,668
    mjkcal
    Apr 21, 2021