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Electric issue

Discussion in 'Gen 2 Prius Technical Discussion' started by Tamblan, Apr 21, 2020.

  1. Tamblan

    Tamblan New Member

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    Question if anyone has any suggestions..I have a 2006 Prius I bought fairly recently in cosmetically nice condition for cheap but now owning it there seems to be some electrical issues, first thing fixed was the control cluster in the dash so I would have dash lights and speedometer etc.. now there is a janky wire on the sense lead (I think from the previous owner over resetting it pulling the battery wires over and over. Fixed that with a new used one from the junk yard now after a while usually when hitting breaks all of the warning lights pop on, triangle, exclamation point, and check engine. Any thoughts if things are smooth with out pot holes hybrid battery seems good. But I’m wondering if the bad wires may have taken out the hybrid battery??? Also could the brake controller also have been fried from the loose wire surges.. anyway thoughts? I thought maybe this could be a culprit too as sometimes when start up the warning lights trigger then starts acting normal and it seems there is a charge that goes down the line and seemingly initials the brake controller and fan.Thanks so much everyone.
     
  2. SFO

    SFO Senior Member

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    Welcome to PriusChat!!

    Would you happen to have any OBD2 codes (DTCs) that you could share, as that would make any guessing a bit easier on the rest of us.
     
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  3. Tamblan

    Tamblan New Member

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    Yes, thank you for the welcome and the help. Very happy to be here!

    it’s throwing (on generic odb 2) p 3017 a lot and it once threw a c0700 code. Sometimes it works fine and while driving the engine revs and the battery stops charging as seen on the display. I stop the car power down for a few seconds and restarts again and everything looks good and does it again 30 mins later. I’m thinking that one of the batteries is bad but in my experience with other vehicles it seems like a short .Thank you for any suggestions:)!

    btw hybrid battery is 3years old.
     
  4. SFO

    SFO Senior Member

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    Was that a new OEM, or a used battery?

    From your description, and combined with that DTC P3017, it would be safe to assume that there is an issue with the HV battery.
     
  5. Tamblan

    Tamblan New Member

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    I bought it with it in, it is an orange Dorman battery. From the paperwork looks like the previous owner spent 2k on it exactly 3 years ago.




     
  6. dolj

    dolj Senior Member

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    Three years from a Dorman is a good run, but it is looking like that battery has failed.

    Dorman no longer has confidence in their rebuilds as now only provide a 1-year warranty.

    Depending on where in LA you are, there are a couple of members here that might reach out to you with an offer of help.
     
  7. Tamblan

    Tamblan New Member

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    Well I’m technically in Crestline Ca, about an hour East. Near arrowhead, always say la cause I just moved east a year ago. and work etc in la. any help would be appreciated:).

    many suggestions on new batteries? Thoughts on green bean??? Up for any suggestions.

    thank you all so much
     
  8. SFO

    SFO Senior Member

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    Pity they didn't purchased a new OEM battery from the dealer for 2k, that would've lasted quite a bit longer than a Dorman "used battery".
     
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  9. SFO

    SFO Senior Member

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    If you continue to drive with the failed pack, you may want to travel with a fire extinguisher just in case. Safety third and all that stuff.

    Are there other DTCs being logged and retrieved?

    Which app are you using to retrieve the DTCs with, or is this a stand alone OBD2 reader?

    You may need to upgrade your tool arsenal by adding a hybrid compatible reader, many use a "mini-vci cable" and a copy of Techstream.

    You can find a decent OBD2 bluetooth/wifi adapter from this list, or at the Hybrid Assistant website. Then use either App on a phone/device.

    Before committing yourself to an expensive battery outlay, you should read all of the DTCs (OBD2 codes) that are stored in the ECUs.

    If you're having brake issues that can get expensive as well, and it may not make economic sense to invest in a battery quite yet.

    Do you have the tools, interest, or the ability for a DIY HV battery install, or module repair?

    Best to avoid purchasing a used battery (greenbean, etc), look for a provable lower mileage assembly from a gen3/4 wreck instead. You might consider buying a new OEM from the dealer, or even a new aftermarket pack from http://www.newpriusbatteries.com/ - both around $1.6k+ install. If the old owner had bought a toyota OEM (not dorman), the battery would be the least of the vehicles potential problems.
     
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  10. Tamblan

    Tamblan New Member

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    I have just using a cheaper regular odb2 but I’ll def take your advice for more hybrid focused readers you sent links for.

    so far the main regular Dtc code that is consistently logged is the p3017. there are not any brake issues and all and all the car drives great except for the battery issue. I’ve worked on a lot of vehicles and not against some work on my own if it makes sense.

    Btw I think the messed up wires in the back ignored by the previous owner probably helped take out the battery so to speak. I have since replaced the wiring to the 12 volt battery and replaced the brake power module back there as well. Also replaced the fans relay and cleaned it as well. All these things seemed to help the car overall with the exception the hybrid battery inconsistent charge and p0317 code.

    I live in a small mountain village so have only been driving around ten minutes or so by my house until I can get this issue isolated and fixed or obviously replaced.

    Thank you for all the great suggestions, you guys are super helpful!!!
     
  11. SFO

    SFO Senior Member

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    The "mini-vci cable" and techstream (same software the dealer uses) is a great option if you have a windows device with USB.

    P3017 identifies a a failed module or pair, which could be swapped out for another. Best to balance the battery pack after with a HV source.

    Have you had a chance to check out any of the module replacement threads or videos already?

    There is the new (or used) HV battery option as well, if going used be sure to verify the mileage via the VIN, and module age via serial #s

    Don't buy a hodge podge of modules, best to find a previously untouched, verifiable low mileage wreck (gen2,3,4) if you aren't going DIY.