2005 Prius Troubleshooting

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by AnemoneSam, Mar 20, 2017.

  1. AnemoneSam

    AnemoneSam Junior Member

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    Hi everyone!

    I just bought my first Prius! Unfortunately, after owning it for only a few weeks, the check engine light is on. The codes I am reading are POA80 and C1310. I know that the first code is "replace the HV battery", but I'm not sure about the second one.

    I bought this car used in Florida, and it only has 74,000 miles! I am guessing that a battery replacement would not be covered under the warranty because the car is older than 8 years. Is this correct? I am planning to use this car to commute about 80 miles a day for the next 5 years or so. What are my options? Can I drive the car until the battery gives out? It seems like it is charging normally. Could it be a faulty code? I have heard that recycled batteries are an inexpensive option, but would it last me more than a few years? I am looking for a long term solution.

    Thanks!

    Samuel
     
  2. ChapmanF

    ChapmanF Senior Member

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    I think C1310 was mentioned in another thread here recently; if I remember right, that's just the braking computer echoing that it's been notified of a problem by the HV computer. So the P0A80 would be the only real news here.

    I'm sure others will comment on the warranty question and battery options.

    -Chap
     
  3. ericbecky

    ericbecky Hybrid Battery Hero

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    Samuel,
    If you plan on owning for a while it might be worth investing in a few diagnostic tools.
    Easiest is a Bluetooth OBDII reader so you can scan codes using the Torque app using an Android phone/tablet.

    With that tool+app you can also set up a custom dashboard so you can see the 14 Hybrid Battery Block voltage readings, Delta SOC, and max/min Block voltages.

    The Bluetooth OBDII device will take a few days to arrive from Amazon.

    You can download the Torque app from the Google app store right away.

    Additionally you'll eventually want to consider getting a miniVCI cable to use with Toyota Techstream software. Easiest to set up on an old XP laptop.

    Best of luck. And congratulations on the car.

    Feel free to call me if you have any questions.
     
  4. bisco

    bisco cookie crumbler

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    welcome!
    you can certainly drive it until the triangle of death comes on. might be worth a call to toyota customer service to see if they will help with a goodwill warranty. all the best!(y)
     
  5. Kuriti

    Kuriti Junior Member

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    I have had that code in the past after changing the 12 volt battery. I would recommend unplugging the 12 volt to re-set the code and see if it pops up again. also, have the 12 volt battery tested or if it looks original, just replace it as its time is nigh anyway. I replaced the HV battery at 100k and am over 200k now. cost me $1500ish at an aftermarket vendor (not toyota). Don't fear this.
     
  6. stockdaddy

    stockdaddy Member

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    HV battery failure in few weeks after owning it sounds like another Prius lemon dump sale.

    Time to invest in a code reader and get some live battery voltage reads as you drive.
     
  7. Kuriti

    Kuriti Junior Member

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    I agree with StockDaddy. A $20 investment in Techstream off amazon and a laptop could solve this mystery, but some folks aren't comfortable with such things. Just depends on whether you have more time or money...
     
  8. AnemoneSam

    AnemoneSam Junior Member

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    Thanks for the advice! I will definitely purchase the OBDII reader, but I am worried about it getting here in enough time to diagnose the problem and fix it. I will be driving back to California in a week or so, so I want to make sure everything is running smoothly by then. Someone recommended that I contact Todd in Tampa. If it is the battery, I'm hoping to have it replaced ASAP.
     
    bisco likes this.
  9. bisco

    bisco cookie crumbler

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    great recommendation, all the best!(y)
     
  10. TWOPrius

    TWOPrius Junior Member

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    Todd is the man. You will not find anyone as fair as he. We are lucky to be near him.

    Posted via the PriusChat mobile app.
     
  11. Kuriti

    Kuriti Junior Member

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    If Todd is reputable and time is important, just go see him and ask to watch the diagnostic.you will see cells with low voltage or high resistance that stand out from the others. If it's just the 12v, he can probably sell you one of those too. Anyone but the dealer...
     
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