1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Headlights (HELP WITH WIRING) 2015 Inferno TRD Pro

Discussion in '2nd Gen. Tacomas (2005-2015)' started by InfernoTRDPro, May 17, 2023.

  1. May 31, 2023 at 12:11 PM
    #21
    caribe makaira

    caribe makaira Well-Known Member

    Joined:
    Feb 13, 2011
    Member:
    #51121
    Messages:
    11,809
    Gender:
    Male
    Caribbean, Puerto Rico
    Vehicle:
    05 PreRunner TRD Offroad AutoTrans
    Hood Struts, My version Fogs always ON, Map & Overhead Light Mod,
    View drawing on post#12...slowly. The added relay is providing the 12V+ DC the headlights require. It's actuated by the DRL wire on the vehicle. No need to add another relay to "change" the feed.
     
  2. May 31, 2023 at 12:17 PM
    #22
    Revelations

    Revelations Well-Known Member

    Joined:
    Apr 17, 2014
    Member:
    #127895
    Messages:
    1,125
    Gender:
    Male
    Vehicle:
    2014 MGM DCSB
    I have alpharex headlights. The way the DRL works is that it is connected to a +12v ign source and does not connect to the OEM DRL/Turn signal harness any longer. The only way to get this working that the OP wants is to tap it back into the OEM DRL/turn signal harness and that would require a conversion since, as you said, the DRL wire is a negative output.

    Edit-
    Looking at your diagram, I think we're saying the same thing.
     
    Last edited: May 31, 2023
  3. May 31, 2023 at 7:22 PM
    #23
    Revelations

    Revelations Well-Known Member

    Joined:
    Apr 17, 2014
    Member:
    #127895
    Messages:
    1,125
    Gender:
    Male
    Vehicle:
    2014 MGM DCSB
    So I tested the lights and alpharex harness. From what I could tell, the alphrex drl's wire is also the same wire for the turn signal. We would need to use a harness that isolates that wire and run it to a relay and tap the drl negative trigger wire to connect to the relay. Looking at it in reverse: You would need to run the drl negative wire tap into the engine bay to the relay, then from the relay to the isolated drl harness. It would be more practical, cost wise, to use a wire tap instead of buying a male/female harness for the drl negative wire. Weather permitting this weekend, I can try it to see if it will work.

    That being said, turning on the low beams will shut off the oem drl circuit, so you would lose the drl any time your headlights are on... I didn't check to see if the headlight also provides power to the drl because I know they dim when the headlight is switched on. It could provide reduced power to the drl or it might do some kind of switching so the drl circuit runs through a resistor that lowers the voltage going to the drl. We could add in a second relay circuit that triggers when the headlight comes on, but the drl would be at full brightness instead of the dimmed light.
     
  4. Jun 1, 2023 at 12:15 PM
    #24
    InfernoTRDPro

    InfernoTRDPro [OP] Well-Known Member

    Joined:
    Jul 11, 2022
    Member:
    #401130
    Messages:
    283
    Charlotte, NC
    Vehicle:
    2015 TRD Pro 4x4
    "OEM+"
    Ok great! Im good with the DRL being on full brightness all the time. I always run the amber DRL's on 24/7 anyways. Plus I have the fog light anytime mod so it gives it a unique look

    F5942D6D-223E-4A67-B25C-1B399D8EA809.jpg
     
  5. Jun 1, 2023 at 12:18 PM
    #25
    caribe makaira

    caribe makaira Well-Known Member

    Joined:
    Feb 13, 2011
    Member:
    #51121
    Messages:
    11,809
    Gender:
    Male
    Caribbean, Puerto Rico
    Vehicle:
    05 PreRunner TRD Offroad AutoTrans
    Hood Struts, My version Fogs always ON, Map & Overhead Light Mod,
    The low beam select input is what dims the OEM DRL. You'll need to remove the module and create a "new" one.
     
    BigRed2513 likes this.
  6. Jun 5, 2023 at 4:56 AM
    #26
    Revelations

    Revelations Well-Known Member

    Joined:
    Apr 17, 2014
    Member:
    #127895
    Messages:
    1,125
    Gender:
    Male
    Vehicle:
    2014 MGM DCSB
    This is a no-go. The same module also prevents the hyperflash. Removing only the wire for the DRL also removes the load needed to prevent the hyperflash. I spent a few bucks on harnesses and stuff already. I'm not really going to dive into resolving the hyperflash issue when I personally don't mind the DRL's being on all the time. Sorry.
     
  7. Jun 5, 2023 at 6:54 AM
    #27
    InfernoTRDPro

    InfernoTRDPro [OP] Well-Known Member

    Joined:
    Jul 11, 2022
    Member:
    #401130
    Messages:
    283
    Charlotte, NC
    Vehicle:
    2015 TRD Pro 4x4
    "OEM+"
    No worries, I appreciate you looking into that! It was worth a shot
     
    Revelations[QUOTED] likes this.

Products Discussed in

To Top