1. Attachments are working again! Check out this thread for more details and to report any other bugs.

What does code PO3018 mean-Block ?

Discussion in 'Gen 2 Prius Technical Discussion' started by PriusVirgin, Aug 26, 2018.

  1. PriusVirgin

    PriusVirgin Junior Member

    Joined:
    Aug 10, 2014
    2
    0
    0
    Location:
    Mission Viejo, CA
    Vehicle:
    2007 Prius
    Model:
    Five
    Pulled code po3018-block 8 mean? Battery issue in a certain section of the HV battery. Also many of my individual battery cells at testing at 8.22V which seem on the high side to me? Thanks
     
    #1 PriusVirgin, Aug 26, 2018
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    110,129
    50,046
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    you will probably do well to read through some battery rebuilding threads. are you using tech stream?
     
    #2 bisco, Aug 28, 2018
  3. Raytheeagle

    Raytheeagle Senior Member

    Joined:
    Jul 1, 2016
    11,257
    15,491
    0
    Location:
    Bay Area, California
    Vehicle:
    2019 Prius Prime
    Model:
    Prime Plus
    Welcome to Prius Chat (y).

    If you are getting the block 8 becomes weak code, that means the two modules in block 8 need to be investigated ;).

    8.22 volts is not that high and within what I’ve seen:).

    Good luck and keep us posted (y).
     
    #3 Raytheeagle, Aug 28, 2018
  4. JC91006

    JC91006 Senior Member

    Joined:
    Nov 10, 2013
    16,525
    8,428
    0
    Location:
    Los Angeles, CA
    Vehicle:
    2008 Prius
    Model:
    II
    It means your HV battery has failed and the computer has picked up block number 8 as the failure.

    Each block contains 1 pair of modules. Block 1 is counted from the opposite end of all the battery electronics and ECU. So just count the pairs, it's the 8th pair that has a problem
     
    #4 JC91006, Aug 28, 2018
    Raytheeagle likes this.
(You must log in or sign up to post here.)