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Under dash electrics

Discussion in 'Gen 4 Prius Main Forum' started by hgcvt, Jul 5, 2020.

  1. hgcvt

    hgcvt New Member

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    Can anyone tell me if the large black/white stripe wire in this pic is Battery+?
    I'm trying to run a positive wire to the trailer hitch wiring control box in the trunk. It would be much easier to tap into this wire than try to get access through the firewall.
    [​IMG]
     
    #1 hgcvt, Jul 5, 2020
  2. ChapmanF

    ChapmanF Senior Member

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    If nobody jumps in, you'll get a reliable answer from the wiring diagram (more info).
     
    #2 ChapmanF, Jul 5, 2020
  3. hgcvt

    hgcvt New Member

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    Thanks,
    If no one does, I'll subscribe to TIS so I can view the diagram.
    The wire is hot, just not sure if it's direct to the battery or not. Sure does appear that way.
     
    #3 hgcvt, Jul 5, 2020
  4. Elektroingenieur

    Elektroingenieur Senior Member

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    The Electrical Wiring Diagram shows (under System Circuit: Steering: EPS) that it’s the power supply for the power steering ECU assembly. I’d strongly recommend not disturbing it.

    If you don’t need much current, my April 2017 posting describes an alternative.
     
    #4 Elektroingenieur, Jul 6, 2020
    alanclarkeau likes this.
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