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HV battery Ecu replacement

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by ibblue2, Oct 2, 2020.

  1. ibblue2

    ibblue2 Junior Member

    Joined:
    Dec 23, 2010
    5
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    0
    Location:
    Illinois
    Vehicle:
    2007 Prius
    Model:
    II
    My Ecu fried the red plug and disingrated 5 pins. Can I install a used unit? Will something need to be reprogrammed? Does anyone repair these units? Thank you.
     
    #1 ibblue2, Oct 2, 2020
  2. TMR-JWAP

    TMR-JWAP Senior Member

    Joined:
    Aug 12, 2016
    6,100
    5,810
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    Location:
    Columbia, SC
    Vehicle:
    2007 Prius
    Model:
    Touring
    Yes, the ecus are replaceable with no additional programming required. The best thing you can do is purchase a new wire frame #2 from Toyota for about $60. It comes with the orange plastic frame, sensor harness, plug and new busbars, all preassembled.
     
    #2 TMR-JWAP, Oct 2, 2020
    ibblue2 and Isaac Zachary like this.
  3. ibblue2

    ibblue2 Junior Member

    Joined:
    Dec 23, 2010
    5
    3
    0
    Location:
    Illinois
    Vehicle:
    2007 Prius
    Model:
    II
    Replaced with a used unit from EBay. Same part number and can report that everything is good. Thank you.
     
    #3 ibblue2, Oct 4, 2020
    bisco likes this.
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