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DRL Doesn't working

Discussion in 'Gen 1 Prius Plug-in 2012-2015' started by Giorgi Diasamidze, Jan 25, 2021.

  1. Giorgi Diasamidze

    Giorgi Diasamidze New Member

    Joined:
    Dec 23, 2020
    10
    3
    0
    Location:
    Georgia
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Advanced
    Hello everyone, I have one problem with my PHV. It is 2012 Prius plug-in advanced, USA Model, and I have a problem with DRL. This prius have toggle switch left side of steering wheel and it has 4 positions, from top 1. Headlights low beam on 2. Parking lights on 3. Auto and 4. DRL OFF. So as I understand from manual to have DRL on I have to be in Auto mode, Hybrid system on and parking brake released and DRL comes on but It doesn't working, also in head unit I have not option of Light settings to this way Setup- Vehicle - vehicle customisations. I tested all circuit and it seems when I shortcut two relay pins in the fuse box it's working all the time, which relay I'll show in attached picture, no matters ignition on or off.
    P.s. I also tried to enable DRL with OBD2 and Carista app from Customisations menu.
    DRL fuse and relays seems good.
    Can anyone help me with this?
    Thanks in advance
     

    Attached Files:

    #1 Giorgi Diasamidze, Jan 25, 2021
  2. Mendel Leisk

    Mendel Leisk EGR Fanatic

    Joined:
    Oct 17, 2010
    56,686
    39,235
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    In Canada at least, DRL’s will be on when headlight switch is off.
     
    #2 Mendel Leisk, Jan 25, 2021
  3. Giorgi Diasamidze

    Giorgi Diasamidze New Member

    Joined:
    Dec 23, 2020
    10
    3
    0
    Location:
    Georgia
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Advanced
    This is USA model.
    I tried with on and off. When Auto mode it have to be work.
    I can't understand this is software issue or hardware.
     
    #3 Giorgi Diasamidze, Jan 25, 2021
    Mendel Leisk likes this.
  4. fuzzy1

    fuzzy1 Senior Member

    Joined:
    Feb 26, 2009
    17,557
    10,324
    90
    Location:
    Western Washington
    Vehicle:
    Other Hybrid
    Model:
    N/A
    In my regular Liftback (not a Plug-in), the DRLs don't turn on until my parking brake is released AND I put the car into a moving gear (D or R).

    When shutting down, it works different. Putting the car into P and setting the parking brake won't turn off the DRLs, they stay on until the ignition is shut down and the driver door opens.

    But I also have different light switch settings than you show, I have a trim version lacking AUTO, so these functions may be different.
     
    #4 fuzzy1, Jan 25, 2021
    Giorgi Diasamidze and Mendel Leisk like this.
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