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Splicing light bar into high beams?

Discussion in '2nd Gen Tundras (2007-2013)' started by Scooter916, May 27, 2021.

  1. May 27, 2021 at 8:18 AM
    #1
    Scooter916

    Scooter916 [OP] New Member

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    Just ordered new front and rear bumpers and they are arriving this afternoon. I plan on hooking the light pods up to the existing fog light wire harness. But was wondering if its possible to hook the light bar up so it only comes on with my high beams? Or if I should wire to a 3 position switch (work independently, in tandem with highs and off)

    Electrical is new to me so I've been reading up the best I can.

    I plan to tie the rear pods into the reverse lights
     
    Last edited: May 27, 2021
  2. May 27, 2021 at 8:55 AM
    #2
    Scooter916

    Scooter916 [OP] New Member

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    Forgot photi

    20210527_081442.jpg
     
  3. May 27, 2021 at 8:57 AM
    #3
    omgboost

    omgboost The Accountant

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    Yes, I had an add a fuse with one of the highbeam fuses along with a switch. The lightbar would come on with the high beams if the switch was left in the on position.
     
  4. May 27, 2021 at 10:10 AM
    #4
    NewImprovedRon

    NewImprovedRon Hey! Get off my grass!

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    Depending on how many watts/amps your LED light pods are pulling, you may want to hook them to a relay with your high beam circuit connected to the relay as your trigger wire.
     
    Scooter916 [OP] likes this.
  5. May 27, 2021 at 10:13 AM
    #5
    Scooter916

    Scooter916 [OP] New Member

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    yeah that's what I'm thinking the more I look into it. need to sit down and do some research on that
     
  6. May 27, 2021 at 10:33 AM
    #6
    NewImprovedRon

    NewImprovedRon Hey! Get off my grass!

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    :thumbsup:
     
  7. May 27, 2021 at 10:54 AM
    #7
    rossdepanfilis

    rossdepanfilis New Member

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    I originally had LED light pods wired to come on with my reverse lights. Now I have them setup on a switch (on-off-on) to either come on when I flip the switch one way, off in the middle, or come on with the reverse lights.
    The reason for that is because when I did not need/want those BRIGHT LED pods turning on when I was backing out of a parking spot on the road or parking lot and potentially blinding the person coming up the road.

    On my work truck, I currently have my light bar tied directly to my high beams. (through a relay) and I want to put them on a switch where it I can turn off the light bar if I don't need it. I just haven't gotten around to it yet.

    I need the light bar and the rear light pods for plowing snow, in the woods, or driving down a lease road where there is no traffic or street lights or anything like that.
     
  8. May 27, 2021 at 10:58 AM
    #8
    Scooter916

    Scooter916 [OP] New Member

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    Yeah I'm leaning more towards the 3-way for the light bar, I like the idea of the 3-way for the rear. and will probably run the front pods off my existing flood light wire harness with an adapter


     
  9. May 27, 2021 at 11:14 AM
    #9
    Scooter916

    Scooter916 [OP] New Member

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  10. May 27, 2021 at 1:53 PM
    #10
    VWTim

    VWTim New Member

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    I always use a relay triggered off the factory high beams for my supplemental lighting. If you ever plan to use them for backroads where you may encounter traffic and need to dim them quickly, a switch is a pain.
     
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  11. May 27, 2021 at 11:14 PM
    #11
    Occidentalis

    Occidentalis Out Snakin'

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    Do you mind linking a relay or providing a part number? - like one you'd use for a light bar or pair of ditch lights?
     
  12. May 28, 2021 at 4:57 AM
    #12
    jbrnigan

    jbrnigan New Member

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    Just google "light bar relay kit"........10 bucks almost everywhere. Most kits come with switch, relay, wiring and instructions (which looks like it will helpful for you). Some states require accessory lighting be switched. If you want your forward lighting to come on with the high beams, just run your trigger wire through the switch and turn it on/off. (see post #3)
     
  13. May 28, 2021 at 7:29 AM
    #13
    NewImprovedRon

    NewImprovedRon Hey! Get off my grass!

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    Watts divided by 12 volts equals the number of amps you are adding to your system. Make sure you use a relay that will support the added amps. As an example, my added led light bar was 180 watts, divided by 12 volts (the truck's system), equaled 15 amps I was adding. I used a common 40 amp relay available just about anywhere auto parts are sold. Also, make sure you use large enough gauged wiring to support your lighting. Attached is a cheat sheet to determine the gauged wiring you will need. The longer the run of wire, the thicker gauged wiring you need. Connect the positive wire from your added lights to your relay, ground your relay to a good ground point (I would use the ground point screw on the fender just to the right of the battery - it is also a good area to use to mount your relay to), connect the ground from your added lights to a good ground point, connect the relay to the positive of your battery with an in-line fuse to support the amps for the circuit, and connect the trigger wire from the relay to the high beam fuse location in your under hood fuse box using an Add-a-fuse. I have also attached a DIY of how I hooked up my led light bar using a relay and a switch. You won't need the lighted switch info for your application but the other connection information will help you. What happens when you turn your bright beams on is that the trigger wire turns on the relay (it is just a switch in itself), completing a circuit within the relay, and your lights turn on. Shout out if you need more information.
     

    Attached Files:

    Last edited: May 28, 2021
  14. May 28, 2021 at 8:58 AM
    #14
    dumbassdave

    dumbassdave Member

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    I have lightbar on with my high beams too, for this reason. A push button switch is too hard to get at quickly. On mine, I went one step farther in case I ever needed to have my high beams on but my light bar off. With a second relay, I tied into the fog light switch, so that if I have my fog light switch off, my light bar wont be on with high beams. If you are doing lighting stuff, may as well also look at the mod that keeps you fog lights on with your high beams. May as have all of the lights on!
     
  15. May 28, 2021 at 10:45 AM
    #15
    Scooter916

    Scooter916 [OP] New Member

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    I was mainly wanting them on a switch for when I go camping and I might need to set up camp in the dark, mostly the bar will be used only with high beams on backroads.

     
  16. May 28, 2021 at 10:54 AM
    #16
    Tundra18overland

    Tundra18overland New Member

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    Have you looked into a SwitchPro?
     
  17. May 28, 2021 at 11:07 AM
    #17
    Scooter916

    Scooter916 [OP] New Member

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    That looks pretty sweet, but a little out of my price range ( if I was looking at the right thing?)
     

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