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Gf had to get a prius HV battery dead.

Discussion in 'Gen 2 Prius Main Forum' started by David pahl, Apr 9, 2019.

  1. David pahl

    David pahl New Member

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    My girlfriend just had to get a used Prius(2005) and now about a year into it the HV battery is dead. Just ordered a Bluetooth scanner to replace my older one. In the mean time reading up as much as possible. Doesnt seem like a hard job to replace and balance the battery packs[modules i think they are called] just time consuming.
     
    #1 David pahl, Apr 9, 2019
  2. edthefox5

    edthefox5 Senior Member

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    Hope your scanner has Techstream.
     
    #2 edthefox5, Apr 10, 2019
  3. davecook89t

    davecook89t Senior Member

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    Techstream would be the best tool, but as long as the scanner you bought is compatible with the Torque Pro Android app, or Dr. Prius or Hybrid Assistant, you should be able to get enough information to start the job. Best of luck.
     
    #3 davecook89t, Apr 10, 2019
  4. bisco

    bisco cookie crumbler

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    welcome!
    replacing modules is a short term fix, but a good learning experience. if she is low on cash, she's lucky to have you.
     
    #4 bisco, Apr 10, 2019
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  5. David pahl

    David pahl New Member

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    I wish when i worked at S.E.T thats what we used after the cars got done with the final inspection. Looking to getting a laptop and see about it down the road.
    Just got it in today and yes seems to work with torque pro just fine. Ill try dr. Prius in the morning.
    If it get the stupid triangle to go away for 6 months or so still she can save up for the replacement then it will be worth it.
     
    #5 David pahl, Apr 11, 2019
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  6. David pahl

    David pahl New Member

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    And a bit of back story and screen shots.

    So this all started when a car pulled out i front of us and she had to slam on her breakes super hard the red triangle popped up and been lile that for a few weeka now. She keeps getting it cleared and just drives till it come on again. Anyway new to hybrids but not working on cars. Screenshot_2019-04-10-22-35-42.png Screenshot_2019-04-10-22-45-33.png Screenshot_2019-04-10-22-53-43.png


    Im going to say i have a bad module in block 8 witch is causeing the temperature sensors in the middle of the pack to trip a code......i really have no idea just a shot in the darke
     
    #6 David pahl, Apr 11, 2019
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  7. ericbecky

    ericbecky Hybrid Battery Hero

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    Welcome to Priuschat.
    If you go slow you can likely do this job.
    Get an inch-pound torque wrench so that when you put it back together the nuts on the HV battery and contactors are properly tightened. You don't want to break things or leave them too loose.

    I sell modules if you need them and would be happy to walk you through things and answer questions.
     
    #7 ericbecky, Apr 11, 2019
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  8. David pahl

    David pahl New Member

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    Do you have a link to your store or do you just sell them off of this site?

    I have all the tools ill need booth inch and foot lb torque wrenches.



    So what seems to be bugging me guys is the middle temperature sensor is always higher then the rest by a lot. I went out this morning and did a check and this is what i got. Screenshot_2019-04-11-07-39-28.png

    You can see that it is about 10 degrees higher. This is as soon as i switched the car on so i know the chargeing didnt have anything to do with it[ok maybe still not to sure]
     
    #8 David pahl, Apr 11, 2019
  9. davecook89t

    davecook89t Senior Member

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    It makes sense to me. Block #8, near the middle, is not able to hold the charge being applied to it, and is expelling that excess energy as heat. Also, keep in mind that the middle blocks are the farthest away from the cooler air at either end of the battery. They are the ones that usually fail first. You should check the condition of the battery's fan, though. If it is partially clogged, none of the modules will be getting as much cool air as they would like, and the middle modules will suffer the most.
     
    #9 davecook89t, Apr 11, 2019
  10. ericbecky

    ericbecky Hybrid Battery Hero

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    I suppose someday I should set up a store, but for now I just talk to people via email or on the phone. 608-729-4082 [email protected]
    Great to hear you have tools. Too often stuff gets broken or left loose causing all kinds of unexpected issues.
     
    #10 ericbecky, Apr 11, 2019
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  11. Skibob

    Skibob Senior Member

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    #11 Skibob, Apr 11, 2019
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