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Passenger DRL / Side Marker not working in AUTO

Discussion in '5th Gen 4Runners (2010-2024)' started by clt_ah4runner, Jun 24, 2024.

  1. Jun 24, 2024 at 8:02 AM
    #1
    clt_ah4runner

    clt_ah4runner [OP] New Member

    Joined:
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    First Name:
    aaron
    Vehicle:
    2020 army green 4runner TRD Pro
    I recently installed some Morimoto XB headlights and everything was working fine for about a week. Suddenly the Right Headlight (passenger) side DRL stopped working. I troubleshooted everything I could think of including creating a seperate wire harness for the right DRL power to make sure there was nothing wrong with the DRL 12v power harness, checking all fuses, etc. I eventually contacted morimoto assuming something must be wrong with the headlight itself. They just sent me a new one and after installing it I still have the same problem. The headlights all work fine in every mode EXCEPT when the headlight stalk is in AUTO mode during the day when only the side marker should be dimmed and DRL should be on. The DRL strip is on when the headlights are on, the turn signal works on the DRL strip and sidemarker when I turn that on, when i set the stalk to DRL they turn on (although this mode also dims my dash so I dont want to use that)....
    any help would be appreciate on next steps to troubleshoot. is there is DRL low power relay somewhere that could have bad connection/fried? is there anything in the BCM or ECU i should check? pic and detailed video below
    20240612_134627.jpg
    https://drive.google.com/file/d/12aPx4PD4i6C1bXe2gEteyOjSQCUzhcGB/view?usp=drivesdk
     
  2. Jun 26, 2024 at 5:02 AM
    #2
    Grandpawmoses

    Grandpawmoses Dirty Old Man

    Joined:
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    David
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    2024 4R TRD Pro
    Too poor to buy anything now
    Sorry for your issue. I read about so many issues with light replacements that I've become gun shy about doing it.
     
    2018 Limited likes this.
  3. Jun 26, 2024 at 7:11 AM
    #3
    2Toys

    2Toys Imperial Star Cruiser

    Joined:
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    Gordon
    NorCal
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    2019 4Runner TRDORP
    Morimotos... <SIGH> Here we go again...

    @clt_ah4runner in the search window in the upper right part of the screen type in Morimoto and read all of the gory details. Good luck with yours.
     
  4. Jun 26, 2024 at 8:03 AM
    #4
    clt_ah4runner

    clt_ah4runner [OP] New Member

    Joined:
    Jun 30, 2020
    Member:
    #15234
    Messages:
    37
    Gender:
    Male
    First Name:
    aaron
    Vehicle:
    2020 army green 4runner TRD Pro
    oh i have......the thing is that it doesnt seem to be a Morimoto issue. as mentioned, they sent me a replacement and the same issue is still there. I hooked up my old OEM headlight as well and same thing, DRL doesnt work. so i'm guessing its something happening in the BCM, the DRL dimmer relay, or something like that
     

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