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2001 Prius with 3125 DTC, 12v battery system charging 13.9 all th time

Discussion in 'Generation 1 Prius Discussion' started by jabermoini, Feb 4, 2011.

  1. jabermoini

    jabermoini New Member

    Joined:
    Jan 21, 2011
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    Location:
    San Diego
    Vehicle:
    2001 Prius
    Model:
    I
    Hi guys, I need some help, I got a 01 prius with 178k, check engine light is on with code P3125, 12v battery is charging 13.9 all the time, vehicle on "D" position drives 3 mph and on "R" drives weaker for 10 ft and stops. Inventor cooling system show a good flow on the reserver lens. HV Battery with engine ruining has 297v, any idea could help me to start fining the problem, thank you in advance.
     
    #1 jabermoini, Feb 4, 2011
  2. freidawg

    freidawg Prius Recycler

    Joined:
    Aug 22, 2010
    111
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    Location:
    Denver, CO
    Vehicle:
    2003 Prius
    Model:
    N/A
    Are you able to read the subcode of the P3125? it will be a 3 digit number.

    That will help.

    Eric
     
    #2 freidawg, Feb 6, 2011
  3. hootywho32

    hootywho32 Junior Member

    Joined:
    Oct 11, 2009
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    Location:
    ohio
    Vehicle:
    2005 Prius
    Model:
    II
    was wondering if you ever found a solution to your 3125 problem I have the exact same problem. Thanks
     
    #3 hootywho32, Dec 4, 2011
  4. jamiesimko

    jamiesimko New Member

    Joined:
    Jan 28, 2012
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    Location:
    Nuevo, CA
    Vehicle:
    2002 Prius
    Model:
    N/A
    I'm having the same problem as well.... Any feedback would be appreciated.
     
    #4 jamiesimko, Feb 1, 2012
  5. hyvong

    hyvong New Member

    Joined:
    Oct 7, 2012
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    Vehicle:
    2001 Prius
    Model:
    N/A
    As Eric said, you need the 3 digits code (information code to find out exactly wrong with it and only dealer toyota scanner can read it). The p3125 can be: inverter pump, hv computer or transmission. It look like your car has a transmission problem.
     
    #5 hyvong, Oct 7, 2012
  6. hyvong

    hyvong New Member

    Joined:
    Oct 7, 2012
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    Vehicle:
    2001 Prius
    Model:
    N/A
    I want to add p3125 also related to inverter problem also called electric engine.
     
    #6 hyvong, Oct 7, 2012
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