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HELP Please - 2005 Prius

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Dr_DLH, Jun 21, 2017.

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  1. JC91006

    JC91006 Senior Member

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    You can get a prius battery on Amazon for about $150.
     
    #21 JC91006, Jun 22, 2017
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  2. Dr_DLH

    Dr_DLH Member

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    I still have a problem guys. I purchased the battery last Thursday evening, placed it in the car and the car started up. but then just a few minutes later all the same lights came on... ugh.. So I remember the guy telling me the box next to the battery was a capacitor.. I thought ok I will unplug it at the same time as I do the battery. I left them all off and plugged them all back in 10min later. Started it up. Drove around my neighborhood for 30min with no issues.. I parked it and drove it to work the very next morning. No problems, drove on lunch and then drove it home. Drove it this morning no problems.. I gave it to my wife this evening.. She just sent me a text and all the damn lights are back on.. I cant believe this??? Ugh.. now I finally got my own cable today off ebay and have the techstream software so I am going to do my own testing.. Any special way to run the software or what to check?
     
    #22 Dr_DLH, Jun 24, 2017
  3. JC91006

    JC91006 Senior Member

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    You should get the codes read while the car is displaying all the warning lights. If I had to guess, I would say the problem is listed in the following order

    1. inverter pump (your AC will usually cut out if this is fault is overheating the system)
    2. hybrid battery failure.

    There are many other possibilities, but those would come to mind on a 2005
     
    #23 JC91006, Jun 24, 2017
  4. edthefox5

    edthefox5 Senior Member

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    No sorry you have a turtle icon on the mfd that's the hybrid battery. If it's the 12 volt only it will just throw the red master caution icon. You have a hybrid caution icon on the mfd.
    Get your car to a Toyota dealer asap
    And start the process of warranty replacement of the hybrid battery.
     
    #24 edthefox5, Jun 24, 2017
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  5. Dr_DLH

    Dr_DLH Member

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    I did some browsing around on the codes.. see below
     

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    #25 Dr_DLH, Jun 24, 2017
  6. Dr_DLH

    Dr_DLH Member

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    the inverter pump is flowing as normal. The AC was blowing cool until she turned it off in the garage as I had her drive it straight home when she sent me the pics.. now it wont start but all the lights are on nice and bright.
     
    #26 Dr_DLH, Jun 24, 2017
  7. dolj

    dolj Senior Member

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    It won't start because that DTC (P0AA6) will preventing it from starting. You have a Hybrid Battery Voltage System Isolation Fault. The ABS/VSC DTCs are just information from the HV ECU to say there is a battery problem so they can modify the way the ABS/VCS ECUs work, e. g. stop regeneration functions.

    The B1421 means that there is no bright sunlight which you can disregard, unless you were in bright sunlight when you read the codes.

    I'd park the SRS code for now. Your focus should be on finding and repairing the hybrid battery voltage system isolation fault.
     
    #27 dolj, Jun 24, 2017
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  8. Dr_DLH

    Dr_DLH Member

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    yeah the SRS has been an issue over a year now.. keep moving the wires under the passenger seat seems to fix it for a couple months... I have sent my buddy thats a toyota tech the pics as well. He said he will look into the isolation fault when he can.
     
    #28 Dr_DLH, Jun 24, 2017
  9. Paul Schenck

    Paul Schenck Active Member

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    My Mother and I both have 2005 Prius hers 90k, mine 420k I replaced my HV Battery at 300k, in 2014. She replaced hers last month. So the 150k warranted your buddy speak about doesn't wash with my experience.


    iPhone ?
     
    #29 Paul Schenck, Jun 24, 2017
  10. Dr_DLH

    Dr_DLH Member

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    I found it is 150k or 10years in california whichever comes first.
     
    #30 Dr_DLH, Jun 24, 2017
  11. Dr_DLH

    Dr_DLH Member

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    hmmm.. just found this and it says 150k or 15years (180months).
     

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    #31 Dr_DLH, Jun 24, 2017
  12. Paul Schenck

    Paul Schenck Active Member

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    That's for the transaxle not the HV Battery, yes?


    iPhone ?
     
    #32 Paul Schenck, Jun 24, 2017
  13. Dr_DLH

    Dr_DLH Member

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    ah yes after I read the previous page... ugh...
     
    #33 Dr_DLH, Jun 25, 2017
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  14. Dr_DLH

    Dr_DLH Member

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    So this is where I am at. Charged the 12v battery and nothing happens when I try to start it. Nothing, reset the battery like 7 times today. Battery is at 12.74v all lights come on but nobody is home. Before I would reset the 12v battery it would start.
     
    #34 Dr_DLH, Jun 25, 2017
  15. JC91006

    JC91006 Senior Member

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    Once you disconnect the 12v all the warning lights should go away, if the lights are still there, something is not disconnecting
     
    #35 JC91006, Jun 25, 2017
  16. Dr_DLH

    Dr_DLH Member

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    Do I need to disconnect the hybrid battery?
     
    #36 Dr_DLH, Jun 25, 2017
  17. JC91006

    JC91006 Senior Member

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    No, nothing to do with that
     
    #37 JC91006, Jun 25, 2017
  18. Texas Hybrid Batteries

    Texas Hybrid Batteries Senior Member

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    How are you resetting the 12 volt battery? You should be disconnecting the negative side for several minutes to reset all of the codes.

    P0AA6-526 is a generic detail code. If it sets info code 611-614 that will tell where the fault is at. Everything that your describing makes me think that you have a leak in your hybrid battery. Info code 612 would verify this.

    On leaking hybrid packs the block voltages normally stay very close like your mechanic friend noted.

    When you try to start the car are there any warning lights on?

    Matt
     
    #38 Texas Hybrid Batteries, Jun 25, 2017
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  19. Dr_DLH

    Dr_DLH Member

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    Yes all the lights are on.. I disconnected it 7 times today... getting really irritated with this car... never had a problem with it.
     

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    #39 Dr_DLH, Jun 25, 2017
  20. Dr_DLH

    Dr_DLH Member

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    Is there a way to charge the hybrid battery?
     
    #40 Dr_DLH, Jun 25, 2017
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