1. Welcome to Tundras.com!

    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 Tundra discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other Tundra owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Easy 5 min anytime fog light relay mod DIY

Discussion in 'Lighting' started by xtyfighterx, Jan 16, 2018.

  1. Jan 16, 2018 at 9:31 AM
    #1
    xtyfighterx

    xtyfighterx [OP] New Member

    Joined:
    Aug 28, 2016
    Member:
    #4360
    Messages:
    1,401
    Gender:
    Male
    First Name:
    Ty
    North Idaho
    Vehicle:
    2015 Black Crewmax Mid Travel
    Mid travel fox 2.5 coilovers 2.0 real shocks shims 295 70 18 trail grapplers pro accessories 32in light bar blacked out bed cover sway bar Moto metal 970 18x9
    so there’s a lot of write ups on the anytime fog light mod using wires under the dash etc I found a different way which is simpler. If someone has already posted this please delete. There is also a YouTube video on a. 2nd gen from years ago you can reference if you want to add a aftermarket switch.

    This was performed on my 2015 sr5. And should be compatibile with 2nd and 3rd gen tundras. Iam not reliable to any damages caused to your vehicle :).

    Cons:fog lights will not be controlled by the fog light switch. They will come on automatically with Parking lights,low beam, and hi beam. To turn them off you must turn off all lights(minus your DRL)or wire a separate switch in. For me if my headlights are on my fogs are and I wanted to be able to have them on with my parking lights and brights so this is perfect for my situation here’s a breakdown.

    Looking at the fuse box
    FA91BFD2-30C9-41E1-8AE9-96FC9D3CF812.jpg
    Locate the foglight relay
    2FC6ED0F-AF76-4825-8228-BCAB5C410029.jpg
    Using pliers Pull the relay outward.looking at it from this angle the bottom left prong is the one u want.bend it slowly with pliers to a 90 deg and connect a female spade to it with about 12in of wire.
    B0DC0FE7-A617-4912-8815-D4C4AB870D3C.jpg
    Plug your relay back in and run the wire to a good grounding point,cut the wire to proper length and connect using the proper connector(which I need to add to mine I couldn’t find any in my shop).
    24B5DB9D-7BA6-42AA-8DEA-519E759D210D.jpg
    Install your fuse box cap and test your lights. The fogs no longer are controlled by the fog light switch. They will be controlled by your main light switch. Fogs with come on with the parking lights, headlights, and hi beams. Only way to shut them off will be to turn off all lights or wire in an aftermarket toggle/rocker switch.
    Finished product
    3AA32BF5-4B12-4C27-AEA4-40039F05CD55.jpg


    Video to run a aftermarket switch if wanted. Not my video.
    https://youtu.be/-kfzNGUAs-A
     
    Last edited: Jan 16, 2018
  2. Jan 16, 2018 at 9:32 AM
    #2
    xtyfighterx

    xtyfighterx [OP] New Member

    Joined:
    Aug 28, 2016
    Member:
    #4360
    Messages:
    1,401
    Gender:
    Male
    First Name:
    Ty
    North Idaho
    Vehicle:
    2015 Black Crewmax Mid Travel
    Mid travel fox 2.5 coilovers 2.0 real shocks shims 295 70 18 trail grapplers pro accessories 32in light bar blacked out bed cover sway bar Moto metal 970 18x9
  3. Jan 16, 2018 at 9:37 AM
    #3
    darkknight2014

    darkknight2014 Mods mods and more mods!!

    Joined:
    Dec 13, 2015
    Member:
    #2246
    Messages:
    1,514
    Gender:
    Male
    First Name:
    Phil
    New york
    Vehicle:
    2014 tundra sr5
    20" Cooper STT Pros on md rims, quadfire lights, pro grille, leather interior, navi, retrofitted headlights, blacked out chrome, TRD sway bar, hypertech interceptor, k&n air intake, Banks exhaust
    Nice write up!! Next on the to do list.
     
  4. Jan 16, 2018 at 9:53 AM
    #4
    BakNBlk2014

    BakNBlk2014 So Impossibly Black

    Joined:
    Jun 26, 2017
    Member:
    #8287
    Messages:
    650
    First Name:
    Donald
    Virginia Beach VA
    Vehicle:
    2014 limited cm attitude black 4x
    BDS 4 1/2 Nitto Terra Grappler 35x12.5/18 BW Fender Flares Moto Metal 970 Wheels Leer Tonneau Bed Cover Black Plastidip Grill CF Wrap Interior AJT Shift Knob 35% Tint Weather Tech Mats Toyota Bed Mat AFE Intake
    Added. Thanks.
     
    xtyfighterx [OP] likes this.
  5. Jan 16, 2018 at 11:54 AM
    #5
    BakNBlk2014

    BakNBlk2014 So Impossibly Black

    Joined:
    Jun 26, 2017
    Member:
    #8287
    Messages:
    650
    First Name:
    Donald
    Virginia Beach VA
    Vehicle:
    2014 limited cm attitude black 4x
    BDS 4 1/2 Nitto Terra Grappler 35x12.5/18 BW Fender Flares Moto Metal 970 Wheels Leer Tonneau Bed Cover Black Plastidip Grill CF Wrap Interior AJT Shift Knob 35% Tint Weather Tech Mats Toyota Bed Mat AFE Intake
  6. Jan 16, 2018 at 1:55 PM
    #6
    Berdine

    Berdine Ironhide

    Joined:
    Aug 2, 2017
    Member:
    #8877
    Messages:
    1,540
    Gender:
    Male
    First Name:
    Frank
    Binghamton, NY
    Vehicle:
    2016 MGM Crewmax TRD
    Looks great with those new headlights!
     
    xtyfighterx [OP] likes this.
  7. Jan 16, 2018 at 2:04 PM
    #7
    xtyfighterx

    xtyfighterx [OP] New Member

    Joined:
    Aug 28, 2016
    Member:
    #4360
    Messages:
    1,401
    Gender:
    Male
    First Name:
    Ty
    North Idaho
    Vehicle:
    2015 Black Crewmax Mid Travel
    Mid travel fox 2.5 coilovers 2.0 real shocks shims 295 70 18 trail grapplers pro accessories 32in light bar blacked out bed cover sway bar Moto metal 970 18x9
    Thanks I agree now I need some rigids In there
     
    darkknight2014 and Berdine like this.
  8. Jan 16, 2018 at 2:21 PM
    #8
    4x4_Angel

    4x4_Angel Perfectly Imperfect Tomboy....TTC #132

    Joined:
    Jul 30, 2017
    Member:
    #8830
    Messages:
    23,302
    Gender:
    Female
    First Name:
    Bree
    Funky Town, Texas
    Vehicle:
    2014 SR5 CM Silver Sky
    ToyTec BOSS Lift, FRAC, 18" Fuel Pump wheels, Nitto Ridge Grapplers
  9. Jan 16, 2018 at 2:24 PM
    #9
    Berdine

    Berdine Ironhide

    Joined:
    Aug 2, 2017
    Member:
    #8877
    Messages:
    1,540
    Gender:
    Male
    First Name:
    Frank
    Binghamton, NY
    Vehicle:
    2016 MGM Crewmax TRD
    Better share!
     
    xtyfighterx [OP] and 4x4_Angel like this.
  10. Jan 16, 2018 at 2:39 PM
    #10
    4x4_Angel

    4x4_Angel Perfectly Imperfect Tomboy....TTC #132

    Joined:
    Jul 30, 2017
    Member:
    #8830
    Messages:
    23,302
    Gender:
    Female
    First Name:
    Bree
    Funky Town, Texas
    Vehicle:
    2014 SR5 CM Silver Sky
    ToyTec BOSS Lift, FRAC, 18" Fuel Pump wheels, Nitto Ridge Grapplers
    I'll even save you a seat on the bench
     
    Berdine and xtyfighterx [OP] like this.
  11. Jan 16, 2018 at 4:16 PM
    #11
    darkknight2014

    darkknight2014 Mods mods and more mods!!

    Joined:
    Dec 13, 2015
    Member:
    #2246
    Messages:
    1,514
    Gender:
    Male
    First Name:
    Phil
    New york
    Vehicle:
    2014 tundra sr5
    20" Cooper STT Pros on md rims, quadfire lights, pro grille, leather interior, navi, retrofitted headlights, blacked out chrome, TRD sway bar, hypertech interceptor, k&n air intake, Banks exhaust
    Lets get it going on the rigids. Lol
     
    4x4_Angel likes this.
  12. Jan 16, 2018 at 4:49 PM
    #12
    xtyfighterx

    xtyfighterx [OP] New Member

    Joined:
    Aug 28, 2016
    Member:
    #4360
    Messages:
    1,401
    Gender:
    Male
    First Name:
    Ty
    North Idaho
    Vehicle:
    2015 Black Crewmax Mid Travel
    Mid travel fox 2.5 coilovers 2.0 real shocks shims 295 70 18 trail grapplers pro accessories 32in light bar blacked out bed cover sway bar Moto metal 970 18x9
    Next mod for sure
     
    darkknight2014 likes this.
  13. Jan 16, 2018 at 5:04 PM
    #13
    darkknight2014

    darkknight2014 Mods mods and more mods!!

    Joined:
    Dec 13, 2015
    Member:
    #2246
    Messages:
    1,514
    Gender:
    Male
    First Name:
    Phil
    New york
    Vehicle:
    2014 tundra sr5
    20" Cooper STT Pros on md rims, quadfire lights, pro grille, leather interior, navi, retrofitted headlights, blacked out chrome, TRD sway bar, hypertech interceptor, k&n air intake, Banks exhaust
    Im trying to find a plug and play that goes to the stock harness.
     
    4x4_Angel likes this.
  14. Jan 16, 2018 at 5:10 PM
    #14
    epa4wd

    epa4wd New Member

    Joined:
    Nov 24, 2017
    Member:
    #11141
    Messages:
    147
    Gender:
    Male
    First Name:
    Ed
    Nice!. On mine (2018) the fog light relay is the one next to your finger on the right and the relay is negative switched, so I wired it to the negative of the headlight relay. When headlights are switched on, headlight relay coil is grounded and the fog light relay coil will be grounded too thus turning on the fog lights.
     
  15. Jan 16, 2018 at 5:29 PM
    #15
    xtyfighterx

    xtyfighterx [OP] New Member

    Joined:
    Aug 28, 2016
    Member:
    #4360
    Messages:
    1,401
    Gender:
    Male
    First Name:
    Ty
    North Idaho
    Vehicle:
    2015 Black Crewmax Mid Travel
    Mid travel fox 2.5 coilovers 2.0 real shocks shims 295 70 18 trail grapplers pro accessories 32in light bar blacked out bed cover sway bar Moto metal 970 18x9
    Right on! Same conecept here I believe just grounded in a different spot
     
    Last edited: Jan 16, 2018
    epa4wd likes this.
  16. Jan 17, 2018 at 5:18 PM
    #16
    xtyfighterx

    xtyfighterx [OP] New Member

    Joined:
    Aug 28, 2016
    Member:
    #4360
    Messages:
    1,401
    Gender:
    Male
    First Name:
    Ty
    North Idaho
    Vehicle:
    2015 Black Crewmax Mid Travel
    Mid travel fox 2.5 coilovers 2.0 real shocks shims 295 70 18 trail grapplers pro accessories 32in light bar blacked out bed cover sway bar Moto metal 970 18x9
  17. Jan 17, 2018 at 5:23 PM
    #17
    Pudge

    Pudge Sap Wizard

    Joined:
    Nov 8, 2016
    Member:
    #5136
    Messages:
    7,772
    Gender:
    Male
    First Name:
    Sean
    CT
    Vehicle:
    2015 Blue Ribbon Platinum
    TRD PRO grille, OCD consol organizers, DIY wireless phone charger, 33" Michelin Defender LTX MS, Bak revolver X2 tonneau, weathertech liners, 20% tints. DIY pop n lock, 2018 LED headlights, morimoto fogs, TRD shift knob
    Gonna try this when the temp gets up over 20.
    Seems nice and easy and I've been hoping for a tacoma-like fog light mod
     
  18. Jan 17, 2018 at 5:26 PM
    #18
    Pudge

    Pudge Sap Wizard

    Joined:
    Nov 8, 2016
    Member:
    #5136
    Messages:
    7,772
    Gender:
    Male
    First Name:
    Sean
    CT
    Vehicle:
    2015 Blue Ribbon Platinum
    TRD PRO grille, OCD consol organizers, DIY wireless phone charger, 33" Michelin Defender LTX MS, Bak revolver X2 tonneau, weathertech liners, 20% tints. DIY pop n lock, 2018 LED headlights, morimoto fogs, TRD shift knob
    I wonder if the ground wire could somehow be connected to the stock fog light switch. (Too bad its not a push button switch)Would be tough but would restore use of the switch.
     
  19. Jan 17, 2018 at 7:52 PM
    #19
    xtyfighterx

    xtyfighterx [OP] New Member

    Joined:
    Aug 28, 2016
    Member:
    #4360
    Messages:
    1,401
    Gender:
    Male
    First Name:
    Ty
    North Idaho
    Vehicle:
    2015 Black Crewmax Mid Travel
    Mid travel fox 2.5 coilovers 2.0 real shocks shims 295 70 18 trail grapplers pro accessories 32in light bar blacked out bed cover sway bar Moto metal 970 18x9
    Idk the stock fog switch is kinda dumb on our trucks like you said wish it was an actual button. You can do the mod under the dash if you wanna use the switch but, for me before I did this mod id keep them on full time no matter what but wanted them on with the parking lights to accent the fogs so this made more sense to me. You can always wire in a oem fog light switch like the Tacoma’s have to keep your on off option to

    That’s what the guy in the video did but used a toggle
     
    4x4_Angel, Pudge and darkknight2014 like this.
  20. Jan 21, 2018 at 8:24 PM
    #20
    xtyfighterx

    xtyfighterx [OP] New Member

    Joined:
    Aug 28, 2016
    Member:
    #4360
    Messages:
    1,401
    Gender:
    Male
    First Name:
    Ty
    North Idaho
    Vehicle:
    2015 Black Crewmax Mid Travel
    Mid travel fox 2.5 coilovers 2.0 real shocks shims 295 70 18 trail grapplers pro accessories 32in light bar blacked out bed cover sway bar Moto metal 970 18x9
    Bump hope other members can take advantage of this.
     
    Pudge likes this.
  21. Jan 21, 2018 at 8:25 PM
    #21
    darkknight2014

    darkknight2014 Mods mods and more mods!!

    Joined:
    Dec 13, 2015
    Member:
    #2246
    Messages:
    1,514
    Gender:
    Male
    First Name:
    Phil
    New york
    Vehicle:
    2014 tundra sr5
    20" Cooper STT Pros on md rims, quadfire lights, pro grille, leather interior, navi, retrofitted headlights, blacked out chrome, TRD sway bar, hypertech interceptor, k&n air intake, Banks exhaust
    Ill be doing this tomorrow when i put the rigids in!!
     
    xtyfighterx [OP] and Pudge like this.
  22. Jan 21, 2018 at 8:51 PM
    #22
    TheBeast

    TheBeast The Beach

    Joined:
    Apr 27, 2016
    Member:
    #3246
    Messages:
    8,767
    Gender:
    Male
    Vehicle:
    2012
    very cool ! thumbs up ! too bad I can't have fog On all the time...city of L.A. and all the Prius drivers are hatin on me.
     
  23. Jan 21, 2018 at 9:36 PM
    #23
    xtyfighterx

    xtyfighterx [OP] New Member

    Joined:
    Aug 28, 2016
    Member:
    #4360
    Messages:
    1,401
    Gender:
    Male
    First Name:
    Ty
    North Idaho
    Vehicle:
    2015 Black Crewmax Mid Travel
    Mid travel fox 2.5 coilovers 2.0 real shocks shims 295 70 18 trail grapplers pro accessories 32in light bar blacked out bed cover sway bar Moto metal 970 18x9
    Did U figure out plug and play? I’ll be getting a set next payday
     
  24. Jan 22, 2018 at 5:07 AM
    #24
    darkknight2014

    darkknight2014 Mods mods and more mods!!

    Joined:
    Dec 13, 2015
    Member:
    #2246
    Messages:
    1,514
    Gender:
    Male
    First Name:
    Phil
    New york
    Vehicle:
    2014 tundra sr5
    20" Cooper STT Pros on md rims, quadfire lights, pro grille, leather interior, navi, retrofitted headlights, blacked out chrome, TRD sway bar, hypertech interceptor, k&n air intake, Banks exhaust
    Yeah, thats a negative on that. I emailed the member that was selling his on here with a harness another member made but no dice. Ill juat t tap into the factory harness instead of running more wires.
     
  25. Jan 22, 2018 at 5:13 AM
    #25
    DaBoro54

    DaBoro54 Beach Fisher

    Joined:
    Dec 10, 2017
    Member:
    #11438
    Messages:
    441
    Gender:
    Male
    Leveling kit, 285/70R18 EXOs
    darkknight2014 likes this.
  26. Jan 22, 2018 at 5:56 AM
    #26
    darkknight2014

    darkknight2014 Mods mods and more mods!!

    Joined:
    Dec 13, 2015
    Member:
    #2246
    Messages:
    1,514
    Gender:
    Male
    First Name:
    Phil
    New york
    Vehicle:
    2014 tundra sr5
    20" Cooper STT Pros on md rims, quadfire lights, pro grille, leather interior, navi, retrofitted headlights, blacked out chrome, TRD sway bar, hypertech interceptor, k&n air intake, Banks exhaust
    Damn that might be them. Good eye.
     
  27. Jan 22, 2018 at 7:26 AM
    #27
    DaBoro54

    DaBoro54 Beach Fisher

    Joined:
    Dec 10, 2017
    Member:
    #11438
    Messages:
    441
    Gender:
    Male
    Leveling kit, 285/70R18 EXOs
    If you get them,let me know if they work and I’ll buy a set too
     
  28. Jan 22, 2018 at 8:26 AM
    #28
    OBXTundra

    OBXTundra Member

    Joined:
    Aug 30, 2017
    Member:
    #9337
    Messages:
    850
    Gender:
    Male
    Vehicle:
    2010 Tundra, 5.7, 4x4, DC, FF
    JBA UCA's, Eibach/Toytec Coilovers, AAL.
    I would love a plug/play fog mod. I want to retain the factory switch and I don't want to cut/splice wires under the dash. No one has made that happen yet?
     
  29. Jan 22, 2018 at 9:05 AM
    #29
    darkknight2014

    darkknight2014 Mods mods and more mods!!

    Joined:
    Dec 13, 2015
    Member:
    #2246
    Messages:
    1,514
    Gender:
    Male
    First Name:
    Phil
    New york
    Vehicle:
    2014 tundra sr5
    20" Cooper STT Pros on md rims, quadfire lights, pro grille, leather interior, navi, retrofitted headlights, blacked out chrome, TRD sway bar, hypertech interceptor, k&n air intake, Banks exhaust
    That harness is whats needed. I just ordered it we have h11 fogs
     
  30. Jan 22, 2018 at 9:06 AM
    #30
    darkknight2014

    darkknight2014 Mods mods and more mods!!

    Joined:
    Dec 13, 2015
    Member:
    #2246
    Messages:
    1,514
    Gender:
    Male
    First Name:
    Phil
    New york
    Vehicle:
    2014 tundra sr5
    20" Cooper STT Pros on md rims, quadfire lights, pro grille, leather interior, navi, retrofitted headlights, blacked out chrome, TRD sway bar, hypertech interceptor, k&n air intake, Banks exhaust
    Just ordered should be here tomorrow
     
    DaBoro54 likes this.

Products Discussed in

To Top