What is this plug behind cover near traction battery?

Discussion in 'Gen 3 Prius Main Forum' started by vendingtech, Oct 15, 2019.

  1. vendingtech

    vendingtech Member

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    What is this plug behind cover near traction battery? This a diagnostic port or a feature I don't have?

    Thanks
    IMG_20191014_194431.jpeg IMG_20191014_194457.jpeg

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    #1 vendingtech, Oct 15, 2019
  2. Elektroingenieur

    Elektroingenieur Senior Member

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    From the terminal arrangement, general location, and a peek at the Electrical Wiring Diagram (more info), it’s junction connector S20, which joins the ground wires from several nearby parts. Junction connectors are used instead of splices where several wires in the same harness need to be connected; the black plug you removed should have shorting pins connecting the terminals of the white connector.
     
    #2 Elektroingenieur, Oct 15, 2019
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  3. vendingtech

    vendingtech Member

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    Never thought a plug would be the Ground but does make sense. Thanks!

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    #3 vendingtech, Oct 16, 2019
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