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Help with LED Bed Lighting hook up please!

Discussion in 'Lighting' started by RowdyRon, Nov 8, 2015.

  1. Nov 8, 2015 at 3:00 PM
    #1
    RowdyRon

    RowdyRon [OP] WarEagleSteve Fan Club President

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    Ron
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    Deck rail system, Bed divider, door sill protectors, LED reverse light bars, Aries Bull Bar with 28" 180 watt LED light bar, LED step lights, LED bed lights, driver-side grab handle, TRD Rear Sway Bar, BedRug bed mat and tailgate mat, Morimoto Fog Lights, more to come.....
    I recently bought some LED lights to place in the bed of my truck and above my steps. I want to have them come on when the doors are opened, key fob used, or when I turn on the cargo light switch. I have been researching several forums and they all reference the "little brown wire" under the driver side door sill that needs to be tapped into. I have ran all my wiring and in the home stretch to tap into the brown wire and, after taking off the scuff plates, front and rear, I do not see a brown wire in the loom. Is it possible that the wire color has changed for my 2015 Tundra Double Cab SR5? does anyone know what wire I need to tap into to get my lights going? Help Please! Thanks.....
     
  2. Nov 8, 2015 at 3:39 PM
    #2
    csuviper

    csuviper Moderator Staff Member

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    Brian
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    Some Mods :) See build thread for details
    I have all the pics from my install for a good write up for this, just haven't found the time to do it.

    There are three grey wires in the loom. Two are lighter in color. One is a little darker and has a hint of brown or purple in it. That is the one you want to use.
     
    Last edited: Nov 9, 2015
  3. Nov 8, 2015 at 3:41 PM
    #3
    csuviper

    csuviper Moderator Staff Member

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    Here is the pic that I used when finding it.
    image.jpg
     
  4. Nov 8, 2015 at 4:10 PM
    #4
    flynbyu2

    flynbyu2 I'm your huckleberry...

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    If you have a probe, you can always just poke through the insulation and see which one is live when the interior lights come on.
     
  5. Nov 8, 2015 at 6:14 PM
    #5
    RowdyRon

    RowdyRon [OP] WarEagleSteve Fan Club President

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    Deck rail system, Bed divider, door sill protectors, LED reverse light bars, Aries Bull Bar with 28" 180 watt LED light bar, LED step lights, LED bed lights, driver-side grab handle, TRD Rear Sway Bar, BedRug bed mat and tailgate mat, Morimoto Fog Lights, more to come.....
    Thanks for the quick response, guys! After further research I find references to "grayish/brownish" and "purplish/brownish" color for the wire. I looked again and noticed that one of the wires I originally took for black (there are several of them in the driver rear sill that appear black) is actually more grayish looking if my tired, old, 65-year-old-eyes are working ok. I think that is the one I am after and will tap into that one in the morning and see what happens on the lights. I can sure see why this is harder than has to be with the slight color differences. I'll let everyone know if I hit pay dirt tomorrow after I mess with it some more. Thanks again!
     
  6. Nov 8, 2015 at 6:54 PM
    #6
    mdavis

    mdavis Tiger Life

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    Wouldn't happen to be a Gold Rush fan would you?
     
  7. Nov 9, 2015 at 5:45 AM
    #7
    RowdyRon

    RowdyRon [OP] WarEagleSteve Fan Club President

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    Deck rail system, Bed divider, door sill protectors, LED reverse light bars, Aries Bull Bar with 28" 180 watt LED light bar, LED step lights, LED bed lights, driver-side grab handle, TRD Rear Sway Bar, BedRug bed mat and tailgate mat, Morimoto Fog Lights, more to come.....
    LOL! I absolutely am a fan of the show. Great observation Michael!
     
    ColoradoTJ and mdavis like this.
  8. Nov 9, 2015 at 9:04 AM
    #8
    mdavis

    mdavis Tiger Life

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    I'm a fan too.
     
    RowdyRon [OP] likes this.
  9. Nov 9, 2015 at 10:01 AM
    #9
    RowdyRon

    RowdyRon [OP] WarEagleSteve Fan Club President

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    Deck rail system, Bed divider, door sill protectors, LED reverse light bars, Aries Bull Bar with 28" 180 watt LED light bar, LED step lights, LED bed lights, driver-side grab handle, TRD Rear Sway Bar, BedRug bed mat and tailgate mat, Morimoto Fog Lights, more to come.....
    Guys, as a follow up to my question last night about what wire to tap into for my LED's, the puke-gray/purple/brown colored wire was the ticket! Got everything connected and buttoned up this morning and everything works great. My thanks again to Brian, Michael, and flynbyu2 for their quick responses to my question! I'll try to get some night pictures tonight and post the results. Y'all have a great day!
     
    16tunterd and mdavis like this.
  10. Nov 9, 2015 at 4:15 PM
    #10
    RowdyRon

    RowdyRon [OP] WarEagleSteve Fan Club President

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    Deck rail system, Bed divider, door sill protectors, LED reverse light bars, Aries Bull Bar with 28" 180 watt LED light bar, LED step lights, LED bed lights, driver-side grab handle, TRD Rear Sway Bar, BedRug bed mat and tailgate mat, Morimoto Fog Lights, more to come.....
    I will apologize up front for the crappy pictures but this will give you an idea of the step and bed LED light install I just finished:
    IMG_2902.jpg IMG_2904.jpg
     
  11. May 14, 2016 at 10:27 AM
    #11
    PLC721

    PLC721 New Member

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    Those bed lights look nice, would be handy forsure!
     
  12. May 14, 2016 at 10:39 AM
    #12
    RowdyRon

    RowdyRon [OP] WarEagleSteve Fan Club President

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    Deck rail system, Bed divider, door sill protectors, LED reverse light bars, Aries Bull Bar with 28" 180 watt LED light bar, LED step lights, LED bed lights, driver-side grab handle, TRD Rear Sway Bar, BedRug bed mat and tailgate mat, Morimoto Fog Lights, more to come.....
    Thanks! They were reasonably priced as well (I think I got them from TRD Sparks) and the wiring harness that came with them is first class.
     
  13. May 14, 2016 at 10:40 AM
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    PLC721

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    Do they turn on with the cargo lights?
     
  14. May 14, 2016 at 10:41 AM
    #14
    RowdyRon

    RowdyRon [OP] WarEagleSteve Fan Club President

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    Deck rail system, Bed divider, door sill protectors, LED reverse light bars, Aries Bull Bar with 28" 180 watt LED light bar, LED step lights, LED bed lights, driver-side grab handle, TRD Rear Sway Bar, BedRug bed mat and tailgate mat, Morimoto Fog Lights, more to come.....
    Yes, they turn on when you open the doors and work with the key fob when you unlock the doors. Cycle off after about 15 seconds along with the high mounted cargo light.
     
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  15. Apr 9, 2017 at 7:58 PM
    #15
    clubchiman

    clubchiman New Member

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    I am trying to tap into the cargo light wire. I have a 2017 Tundra Crew Max. Does any one know if the wire colors have changed? I have two brown wires in that wire loom under the driver side rear door. I can't find the grey purple one? I know in the past forum post someone said use the brown wire.
     
  16. Apr 10, 2017 at 3:39 AM
    #16
    RowdyRon

    RowdyRon [OP] WarEagleSteve Fan Club President

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    Deck rail system, Bed divider, door sill protectors, LED reverse light bars, Aries Bull Bar with 28" 180 watt LED light bar, LED step lights, LED bed lights, driver-side grab handle, TRD Rear Sway Bar, BedRug bed mat and tailgate mat, Morimoto Fog Lights, more to come.....
    I don't know if they changed wire colors for the cargo circuit since I did my 2015. The wire I used looks almost black under normal lighting. If you have a strong light, take a look at the wires again and see if you can see a dark greyish/purple one. There will be several that look almost black. Also keep in mind that the cargo circuit wire will be a rather thin wire since it is only a 7.5 amp circuit. That should eliminate some of them. Lastly, if you have a circuit tester, you can take a small PosiTap connector and connect to the wires you are testing and use the circuit tester to ID the wire. The circuit tester light should come on if you have it clipped to a ground point and touch the probe tip to the other end of the PosiTap. The light will go out (delayed) if you push in on the door switch and hold it. The reason to use a PosiTap to test the wires is because it puts a very small hole in the wire you are testing without having to bare a larger area with a blade. Hope this helps! Let us know!
     
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  17. Apr 15, 2017 at 10:47 AM
    #17
    Cat3ILS

    Cat3ILS The cheese goes on the bottom bun

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    Hey @RowdyRon your set up is what I've been looking for. But...I keep my cargo light in the left/off position unless needed so I'm wondering if your bed lights follow the same on/off pattern as the cargo lights. As an example:

    With the cargo light switch off (left position):
    Will the bed lights come on when the doors are opened? Assume no
    Will the bed lights come on when the fob is clicked? Assume no

    With the cargo light switch on "door" (middle):
    Will the bed lights come on when the doors are opened? Assume yes
    Will the bed lights come on when the fob is clicked? Assume yes

    With the cargo light switch on "on" (right):
    Will the bed lights come on and stay on until the switch is turned to door or off? Assume yes

    Thanks man, just want to be sure I'm mapping the correct circuit for what I want to do.

    EDIT: I remembered @BlueBottle set up for the cargo tap so I think I'm good to go.
     
    Last edited: Apr 15, 2017
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  18. Apr 15, 2017 at 11:52 AM
    #18
    RowdyRon

    RowdyRon [OP] WarEagleSteve Fan Club President

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    Deck rail system, Bed divider, door sill protectors, LED reverse light bars, Aries Bull Bar with 28" 180 watt LED light bar, LED step lights, LED bed lights, driver-side grab handle, TRD Rear Sway Bar, BedRug bed mat and tailgate mat, Morimoto Fog Lights, more to come.....
    The bed lights will follow the same as your high cargo light and inside lights if you tap the cargo light circuit. So, if you keep the switch in the left hand position they won't come on. In the middle position, they come on along with the high cargo light and inside lights. In the right (on) position, they come on along with the high cargo light and inside lights.
     
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  19. Apr 15, 2017 at 12:10 PM
    #19
    Cat3ILS

    Cat3ILS The cheese goes on the bottom bun

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    Much appreciated Ron!
     
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  20. Sep 20, 2017 at 9:24 AM
    #20
    ckallaos

    ckallaos New Member

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    Were you able to find the wire you needed? I have several brown and several "almost black" and haven't been able to find the right one yet. Also, I'm assuming the thicker white wire with the black stripe is ground, correct?
     
  21. Sep 20, 2017 at 3:23 PM
    #21
    RowdyRon

    RowdyRon [OP] WarEagleSteve Fan Club President

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    Deck rail system, Bed divider, door sill protectors, LED reverse light bars, Aries Bull Bar with 28" 180 watt LED light bar, LED step lights, LED bed lights, driver-side grab handle, TRD Rear Sway Bar, BedRug bed mat and tailgate mat, Morimoto Fog Lights, more to come.....
    I would advise you to get a small PosiTap and tap each wire you want to test. The PosiTap puts a very small hole in the wire so it won't butcher your harness. For each wire you tap, connect a test light to the tap (+) and connect the negative to a good ground point. To connect the test light to the PosiTap, take a short piece of wire, remove a little of the insulation from the end, and screw it into the PosiTap. Bare a little of the insulation on the other end of the short piece of wire and attach the positive connector of the test light. Open one of the doors and the test light should light up if you have the right wire. Press in on the door switch (the one that turns the dome/cargo light off after a delay) and watch the light on the test light. It should go off, along with the dome/cargo light, after the delay if you have the correct light.
     
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