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Tapping the Dash Lights Circuit

Discussion in '3rd Gen. Tacomas (2016+)' started by jadoiron, Feb 2, 2016.

  1. Feb 2, 2016 at 5:56 AM
    #1
    jadoiron

    jadoiron [OP] Well-Known Member

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    Does anyone know what the label on the fuse diagram would be for the dash lights? I'm assuming it's the one labeled "PANEL?"

    The reason being I'd like to tap into the dash lights circuit to power the LED on a switch, so it only illuminates when the dash lights are on.
     
    moe2o4 likes this.
  2. Feb 2, 2016 at 6:47 AM
    #2
    swimmer

    swimmer Well-Known Member

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    I predict you will be starting a thread about malfunction of instrument display soon.
     
  3. Feb 2, 2016 at 6:53 AM
    #3
    mwc273

    mwc273 Nothing is as it seems.

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    If you are near an OEM switch with backlighting, just tap into that at position 5 & 6 of the connector. The wires should be Grey(5) and Purple(6).
     
  4. Feb 2, 2016 at 6:57 AM
    #4
    jadoiron

    jadoiron [OP] Well-Known Member

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    Not near any switches actually. The switch is going just left of the steering column. It's the Access cab 2WD so there is a blank spot there for a switch. There are a couple plugs that I believe are for options that my truck doesn't have. They're wired up and everything, just not connected to a switch. I'm thinking one might be for a cargo light and the other... no idea.
     
  5. Feb 2, 2016 at 7:03 AM
    #5
    mwc273

    mwc273 Nothing is as it seems.

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    You don't have ANY switches left of the steering column?
    You might try looking to see if your wiring harness has any unused plugs behind that area.

    EDIT: I just re-read your last post. Do any of those plugs have 6 wires, with the last two being Grey and Purple?
     
  6. Feb 2, 2016 at 7:06 AM
    #6
    jadoiron

    jadoiron [OP] Well-Known Member

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    Nothing. Just the two blanks. And yes there are two unused plugs behind the panel. Just not sure what they're meant for. One is small and square and has two wires, the other a little larger with multiple wires. They're just fit into a couple empty spots on the back of the plastic panel. I'm not sure what the other Taco models have here. Cargo light / 4WD selector??
     
  7. Feb 2, 2016 at 7:07 AM
    #7
    moe2o4

    moe2o4 Well-Known Member

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    I just used a fuse tap to the Ignition fuse 2 underneath eh dash and the switch led runs when the ignition is on, simple!
     
  8. Feb 2, 2016 at 7:09 AM
    #8
    mwc273

    mwc273 Nothing is as it seems.

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    Does the other have 6 wires, with the last two being Grey and Purple?


    Then the dimmer function doesn't work.
     
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  9. Feb 2, 2016 at 7:30 AM
    #9
    jadoiron

    jadoiron [OP] Well-Known Member

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    I thought about doing this too... but I didn't want the LED to always be on. So I figured tapping into the dash lights would make it so when I turn my parking lights on, the LED on the switch would come on with the rest of the interior lighting.


    6 wires I believe so. I will confirm the colours. The grey and purple represent what exactly? Ground and dimmer?
     
  10. Feb 2, 2016 at 7:38 AM
    #10
    mwc273

    mwc273 Nothing is as it seems.

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    I'm not sure which is which, you may need to reverse the polarity to get your LED to work.
    I was using OEM switches, which have little bitty incandescent bulbs, which don't care about polarity.
    But these are the two wires to tap for switch illumination.

    My Notes to Myself in my Build Thread
     
  11. Feb 2, 2016 at 7:40 AM
    #11
    jadoiron

    jadoiron [OP] Well-Known Member

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    My switch has 4 wires - Green (source), Red 1 (relay or accessory), Red 2 (DASH CIRCUIT), Black (Ground). Just wondering what that red 2 should connect to.
     
  12. Feb 2, 2016 at 7:43 AM
    #12
    mwc273

    mwc273 Nothing is as it seems.

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    Try Red2 to Grey and Black to Purple.
    If that doesn't work, switch 'em!
     
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  13. Feb 2, 2016 at 7:45 AM
    #13
    jadoiron

    jadoiron [OP] Well-Known Member

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    Excellent. So the ground connection can obviously be made to that OEM harness (or any ground really), and not necessarily the one on my light bar harness.
    Hopefully this mystery cluster is related to the dash lights.

    You're a king among men. And a legend among kings.
     
  14. Feb 2, 2016 at 7:59 AM
    #14
    mwc273

    mwc273 Nothing is as it seems.

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    Aww Shucks... :p
    Actually, I wouldn't use that little bitty wire for grounding a light-bar. That's probably too much current.
    Use body ground.
     
  15. Feb 2, 2016 at 8:58 AM
    #15
    TMMIgirl

    TMMIgirl Well-Known Member

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    I'll look at mine. I think it's the same switch as yours.

    20160202_050524.jpg
    20160202_050513.jpg
     
    Last edited: Feb 2, 2016
  16. Feb 2, 2016 at 9:00 AM
    #16
    jadoiron

    jadoiron [OP] Well-Known Member

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    YEP that's where I placed my new switch (it's not wired yet - just placed in the hole). There are a couple groups of wires though. The button that's in your photo to the left of the offroad lights - the power button... I don't have that button in my truck, but there's wiring there for one...
     
  17. Oct 25, 2016 at 9:11 AM
    #17
    RunnerFirst

    RunnerFirst Member

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    Were you successful in finding the dimmer wire or fuse?
    IMG_0724.jpg
     
  18. Oct 25, 2016 at 9:41 AM
    #18
    dilbert

    dilbert Well-Known Member

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  19. Oct 25, 2016 at 9:46 AM
    #19
    Hoangde

    Hoangde Well-Known Member

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    My 2 cents:

    Get some TAP Mini Add-a-circuit Car Auto ATM Low Profile Blade Style
    http://www.ebay.com/itm/5PCS-TAP-Mi...ile-Blade-Style-Fuse-Holder-15A-/131694682878
    and 7.5 A fuses.
    Connect into "PANEL" fuse location.
    Black to ground or chassis.
    Red 2 (or wire next to black) to tap mini as mentioned above (illuminates the switch when the dash lights are on).
    Green and RED 1 can be reversible. One wire can connect to source such as thing you wanted to connect to. Other wire connect to relay or power. Think as green and red wires in a linear connection with mechanical switch in the middle to connect or disconnect.
     
    RunnerFirst likes this.
  20. Oct 25, 2016 at 9:55 AM
    #20
    RunnerFirst

    RunnerFirst Member

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    Thank you guys, my lights, air pump and wiring harnesses are on the way, right now getting ready for the project
     
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