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05 prius hv battery probs

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Bo G, Oct 26, 2015.

  1. Bo G

    Bo G New Member

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    Hey let me start off by saying first post but ty all for the info anyway i have a 05 prius 242k has ran great since i purchased but lately i have been getting the triangle and check and vsc lights code it brings up is p3016 so i ripped the battery apart and every module seems ok 7.7-7.9 my question is could i have a prob in the harness when it throws the lights ill clear them each day and runs150-200 miles any help greatly appreciated
     
    #1 Bo G, Oct 26, 2015
  2. JC91006

    JC91006 Senior Member

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    try just clearing the code and see what comes back later. You can clear the code(s) by disconnecting the 12v negative for a few seconds. If P3016 comes back, then something in that block is an issue.
     
    #2 JC91006, Oct 26, 2015
  3. Bo G

    Bo G New Member

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    Yea i have been clearin the codes for a week now and always same one p3016 block 6 or 7 but after i clear like i said runs good until it sits overnight.so it could still be in the module of 6 or 7 even if they read 7.7 also when i clear codes and drive it hv battery stays charged and acts normal
     
    #3 Bo G, Oct 26, 2015
  4. JC91006

    JC91006 Senior Member

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    Probably bad module under load
     
    #4 JC91006, Oct 26, 2015
  5. bisco

    bisco cookie crumbler

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    welcome! if you're going to keep it and diy, invest in the mini vci, and learn how to properly balance the battery. all the best!(y)
     
    #5 bisco, Oct 26, 2015
  6. Bo G

    Bo G New Member

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    K thx alot
     
    #6 Bo G, Oct 26, 2015
  7. Bo G

    Bo G New Member

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    Changed the cell 6 (i think) looking from the back i went from right to left still gettin the code also cleaned all connections good dont know where to go from here still throwin p3016
     
    #7 Bo G, Oct 31, 2015
  8. JC91006

    JC91006 Senior Member

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    The 1st block is counted from the side the ecu is not on.
     
    #8 JC91006, Oct 31, 2015
    strawbrad likes this.
  9. Patrick Wong

    Patrick Wong DIY Enthusiast

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    Yes. Also, a block is composed of two modules. Hence a problem with block 6 means that modules 11 or 12 have a problem.
     
    #9 Patrick Wong, Oct 31, 2015
  10. Bo G

    Bo G New Member

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    Both 11 and 12 module was reading fine so i swapped them all out diff spots and hopefully this time i can tell if it throws a diff code it will not be in 6 block so maybe i got the right one out no codes yet but i did run it earlier and cleared the p3016 twice so after it sets tonight if history repeats itself and the other module is bad it should give me a diff code thx for all the help guys
     
    #10 Bo G, Oct 31, 2015
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