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

What on earth does this wire do?

Discussion in 'Gen 2 Prius Main Forum' started by Prius92, Aug 25, 2022.

  1. Prius92

    Prius92 Member

    Joined:
    Sep 14, 2019
    376
    95
    0
    Location:
    Iowa
    Vehicle:
    2008 Prius
    Model:
    II
    This isn't my photo.
    Fullscreen capture 8242022 113927 PM.bmp.jpg

    So there is a 2 wire harness that connects to the car's wiring, then it loops around the safety plug receptacle and actually plugs into it. Where the car's wiring plugs in, is on the top of the black safety plug receptacle.

    But there is nothing connecting where it plugs into, literally just a plastic box. I shone a light inside the hole and see no wiring, sensor, etc of any kind, and the end of the connector is just that..a connector.


    Here's another shot of it.
    Fullscreen capture 8242022 114753 PM.bmp.jpg

    Only thing I can think of is maybe when a dealer is testing the battery..it plugs into something else instead of the service plug? Because it's weird it doesn't terminate into a sensor.
     
    #1 Prius92, Aug 25, 2022
  2. dolj

    dolj Senior Member

    Joined:
    May 14, 2012
    7,645
    3,858
    0
    Location:
    Wellington, New Zealand
    Vehicle:
    2007 Prius
    Model:
    N/A
    Doesn't the safety interlock switch bridge those pins to form a circuit (when the slide handle is pressed down vertically and clicks into place) so the battery ECU knows that the safety interlock is installed?
     
    #2 dolj, Aug 25, 2022
  3. alftoy

    alftoy Senior Member

    Joined:
    Mar 16, 2009
    1,132
    509
    0
    Location:
    Saskatchewan, Canada
    Vehicle:
    2008 Prius
    Model:
    Base

    Attached Files:

    #3 alftoy, Aug 25, 2022
    Last edited: Aug 25, 2022
  4. Prius92

    Prius92 Member

    Joined:
    Sep 14, 2019
    376
    95
    0
    Location:
    Iowa
    Vehicle:
    2008 Prius
    Model:
    II
    Well I feel like a giant dummy lol. I never looked at the orange part.
     
    #4 Prius92, Aug 25, 2022
  5. Tombukt2

    Tombukt2 Senior Member

    Joined:
    Nov 29, 2020
    9,098
    1,576
    0
    Location:
    Durham NC
    Vehicle:
    2009 Prius
    Model:
    Base
    #5 Tombukt2, Aug 25, 2022
  6. TMR-JWAP

    TMR-JWAP Senior Member

    Joined:
    Aug 12, 2016
    6,223
    5,905
    0
    Location:
    Columbia, SC
    Vehicle:
    2007 Prius
    Model:
    Touring
    This wire has been discussed dozens of times. It's sometimes forgotten to be reconnected by a new DIYer after rebuilding a battery, which leads to the car not working because the car ecu never recognizes that the safety plug is inserted.
     
    #6 TMR-JWAP, Aug 25, 2022
(You must log in or sign up to post here.)