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Parking Brake Alarm Problem

Discussion in 'Prius c Audio and Electronics' started by Mr Drizzle, Jun 5, 2024.

  1. Mr Drizzle

    Mr Drizzle New Member

    Joined:
    Apr 3, 2024
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    Location:
    California
    Vehicle:
    2016 Prius c
    Model:
    One
    I installed a new Kenwood headunit with video playback capabilities. I bypassed the parking brake video lockout safety feature by connecting a wire from the parking brake wire to the ground wire. It worked to defeat the safety feature of the headunit but now the Prius also thinks I have the parking brake engaged and beeps an alarm unless the car is stopped. Can anyone help me figure out how to trick the headunit into letting me watch video while driving but not also make the car beep at me? The steering wheel control unit adapter AX-TOY28SWC is installed as part of the setup. Thanks!
     
  2. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

    Joined:
    May 12, 2018
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    6,658
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    Location:
    Pennsylvania
    Vehicle:
    2018 Prius c
    Model:
    Two
    Sounds like you need to ground the Pioneer brake sense wire and leave the Toyota brake status wire alone.
     
    Mr Drizzle likes this.
  3. Mr Drizzle

    Mr Drizzle New Member

    Joined:
    Apr 3, 2024
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    0
    0
    Location:
    California
    Vehicle:
    2016 Prius c
    Model:
    One
    Thanks for getting me pointed in the right direction! I clipped the brake sense wire and grounded it from the headunit side and everything works just the way I was hoping.
     
  4. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

    Joined:
    May 12, 2018
    7,104
    6,658
    1
    Location:
    Pennsylvania
    Vehicle:
    2018 Prius c
    Model:
    Two
    Awesome! I re-read my post, no clue why I typed Pioneer when you said it was a Kenwood, heh. Anyway glad you're set now!