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Wire 2 Switches to 1 set of lights? Can It be done?

Discussion in 'Lighting' started by Toyotaco1670, Jan 20, 2013.

  1. Jan 20, 2013 at 7:19 AM
    #1
    Toyotaco1670

    Toyotaco1670 [OP] Member

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    I have a set of lights in the back of my truck. I'd like to wire one switch in the cab and another switch in the back of the truck. Can it be done? If so how? Does anyone have a wire diagram?
     
  2. Jan 20, 2013 at 7:21 AM
    #2
    thegreatwall23

    thegreatwall23 Well-Known Member

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    Yes, it can definitely be done and it's not too hard. Don't have a diagram, but I will see if I can find one.
     
  3. Jan 20, 2013 at 7:34 AM
    #3
    Mikey560

    Mikey560 Member

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  4. Jan 20, 2013 at 7:37 AM
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    Large

    Large Red

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    You want a 3-way switch. You would need 2 DPDT switches and 2 positives running parallel between each switch.
     
  5. Jan 20, 2013 at 7:45 AM
    #5
    Large

    Large Red

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    [​IMG]
    Pardon the crude drawing.
    You wouldn't tap in to where the switches prongs are, there would be 2 sets of them for each DPDT switch, just put them in the right spot or you will keep popping fuses.
     
  6. Jan 20, 2013 at 7:46 AM
    #6
    Large

    Large Red

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  7. Jan 20, 2013 at 10:27 AM
    #7
    ROGU3 PR3DATOR

    ROGU3 PR3DATOR Space Shuttle Door Gunner

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    Click my Sig Pic for my build thread. Too many to list here.
    Here is how I wired mine for that exact purpose, But I also wanted the switch to illuminate with the lights in the bed as an indicator. End result with my setup is one light on my switch comes on with the headlights, the other when the bed lights are on, no matter what position the in cab switch is in. Only difference in wiring is that I tied the dash lights to the lower light and the bed lights to the upper light in the switch. That way the words illuminate with the headlights. After I did this I also discovered that tapping into the dash light circuits also ties into the dimmer.

    [​IMG]

    Bed switch:
    [​IMG]

    Cab Switch:
    [​IMG]
     
  8. Jan 20, 2013 at 11:35 AM
    #8
    2chains

    2chains Well-Known Member

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    Nice work ROGU3! Love that switch! Did you need a relay?
     
  9. Jan 20, 2013 at 11:56 AM
    #9
    ROGU3 PR3DATOR

    ROGU3 PR3DATOR Space Shuttle Door Gunner

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    Click my Sig Pic for my build thread. Too many to list here.
    Thanks, and no, I didnt bother with a relay mainly because I didnt think it was necessary for just an led strip. That and I wanted the lights to work with the truck off. And I guess I should point out that I am not taking power directly from the battery. The circuit is fused via an Aux fuse block which is where the power comes from.
     
  10. Jan 20, 2013 at 11:59 AM
    #10
    staymates788

    staymates788 Well-Known Member

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    Do you have a picture of the lights in the bed? I'm curious how the "marker" set up is.
     
  11. Jan 20, 2013 at 12:03 PM
    #11
    ROGU3 PR3DATOR

    ROGU3 PR3DATOR Space Shuttle Door Gunner

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    Click my Sig Pic for my build thread. Too many to list here.
    Not sure what you mean by marker set up, but here are the photos:

    Daytime:
    [​IMG]

    Nighttime:
    [​IMG]
     
  12. Jan 20, 2013 at 12:20 PM
    #12
    staymates788

    staymates788 Well-Known Member

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    ^^ I read that wrong, my bad.

    That's a awesome set up... Putting it on my To-Do list!
     
  13. Jan 20, 2013 at 12:31 PM
    #13
    claymore

    claymore Well-Known Member

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    How do you have the high lift and cables attached up there? Looks good!
     
  14. Jan 20, 2013 at 12:34 PM
    #14
    claymore

    claymore Well-Known Member

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    Never mind....saw it in your build. I like it.
     
  15. Jan 20, 2013 at 12:54 PM
    #15
    Rich91710

    Rich91710 Well-Known Member

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    Great circuit Rogu3.

    Large... Dafuk is that? :D

    Rogu3... that is a very creative way to maintain an indicator light on the dash. Most switches won't allow for that because one leg of the indicator is connected to the "output", and of course, that alternates with the 3-way switch.

    Caution to those planning this that you are going to need a specific OTTRAW switch that has isolated terminals for the indicator.
    A SPDT will work fine if that is available with the isolated lamps.
     
  16. Jan 20, 2013 at 12:56 PM
    #16
    TeamSarcasm

    TeamSarcasm Mr. President

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    That sir is Microsoft Paint :D

    Jkjk Large, better than anything I can do and more than I have contributed to this thread :eek:
     
  17. Jan 20, 2013 at 12:59 PM
    #17
    Rich91710

    Rich91710 Well-Known Member

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    Ya... I use paint all the time.
    I used it to make "CAD" drawings that I'd send to our San Jose office because the boss wouldn't buy a 2nd license.

    But he's got an extra wire going to the light from the left switch.
     
  18. Jan 20, 2013 at 6:18 PM
    #18
    ROGU3 PR3DATOR

    ROGU3 PR3DATOR Space Shuttle Door Gunner

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    Click my Sig Pic for my build thread. Too many to list here.
    Thanks, I ended up using the switch OTRATTW offered that had two independently wired amber LEDs, but having looked for another one recently, I could not find the same switch body on their site.

    The extra wire is what provides power to the top light in the switch and acts as an indicator, but is unaffected by switch position. That way whenever the bed lights are on, so is the top portion of the switch.
     
  19. Jan 20, 2013 at 7:26 PM
    #19
    Toyotaco1670

    Toyotaco1670 [OP] Member

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    Thanks for all the great info and diagram!!
     
  20. Jan 20, 2013 at 8:13 PM
    #20
    Rich91710

    Rich91710 Well-Known Member

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    I was referring to Large's cluster that didn't show where anything was connected to anything and showed two wires running to the light plus the ground.
    Ya, I was looking for one for a thread a while back and the only solution I could come up with was to run a separate indicator light.
    Too bad the OEM FJ Cruiser switch is a SPST... if it were a DT you could use it since the indicator is separate.
     
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