Installing trailer wiring n need to tap the rear brake wire -asap

Discussion in 'Gen 3 Prius Main Forum' started by Rrrolfff, Mar 18, 2019.

  1. Rrrolfff

    Rrrolfff Junior Member

    Joined:
    Jun 12, 2018
    44
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    Location:
    Irvine
    Vehicle:
    2010 Prius
    Model:
    Two
    Need to pick up a trailer, but uhaul needs it pre wired. I cant find the brake wire...

    Tia
     

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  2. MikeNinMass

    MikeNinMass Junior Member

    Joined:
    Jul 9, 2014
    26
    11
    0
    Location:
    Cambridge, MA
    Vehicle:
    2012 Prius
    Model:
    Three
    I don't know if this is too late, but I believe if you're using a 4-wire connector, the wires are 1) ground, 2) either side parking light, 3) and 4) corresponding left or right turn signal. I don't know the order on the plug. Turn signal lights up when you hit the brakes (and intermittently turns off if you have the turn signal or hazards on). That's how I check the lighting when I'm by myself - first turn on the parking lights, then turn on the hazards.
     
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