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Getting Foglight Switch to Illuminate?

Discussion in 'Lighting' started by jtdunc, Feb 12, 2020.

  1. Feb 12, 2020 at 7:14 PM
    #1
    jtdunc

    jtdunc [OP] New Member

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    Got the DD SS3 Pro foglights - CHECK

    Tried the basic 5-minute foglight mod BUT it doesn't give you full control of your fogs if you want to run fogs with low or high headlights. (at least not on my 2014) - NOPE!

    SO . . . I ordered that Amazon switch (Single Pole Single Throw ON - OFF PUSH switch) and plugged into my dash blank.



    Can tap into light blue wires on the wires on neighboring door light switch for illumination. Switch now works but does NOT light up?



    See the grounding bolt under the kick panel with two black/white wires to it.



    This schematic matches my switch wires.

    switch schematic.jpg

    I did get the switch to function as a ground loop off of the bent pin on the foglight relay from the engine bay. So the switch turns the DD SS3 fogs on and off, but not illuminate in the cabin.

    Could someone tell me which colors will turn the foglights on/off AND light up the switch?

    Can you help me out here?
     
  2. Feb 13, 2020 at 9:24 AM
    #2
    paradizecityz

    paradizecityz New Member

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    I have a different switch but wiring looks similar and wired both terminal 2 and 3 together to the power and that lit up my switch.
     
  3. Feb 13, 2020 at 9:54 AM
    #3
    NewImprovedRon

    NewImprovedRon Hey! Get off my grass!

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    You can try @paradizecityz post by using a 9-volt battery to test what he did.
     
  4. Feb 13, 2020 at 11:48 AM
    #4
    ncorry

    ncorry New Member

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    As in it does not illuminate even when the fog lights are on, or never illuminates, period?

    My Air ob Board switches illuminate, but only when the accessory is on.
     
  5. Feb 13, 2020 at 3:15 PM
    #5
    jtdunc

    jtdunc [OP] New Member

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    Okay I'll try that. But when you mean terminals 2 and 3 together to power, are you running to the illumination circuit? Typically light blue wire on neighboring switch.

    With my current wiring, foglights work but the switch does not illuminate when the fogs are powered on.

    Right now I'm running one ground wire from the foglight relay in the engine bay all of the way to Terminal 1. Green

    The other end of the connector, Terminal 4, black wire runs to ground under the dash.

    Believe Terminal 3, orange wire runs to the illumination circuit, light blue wire maybe on the interior door light switch [that might be the problem as the light might need to be on].

    That's my mess for now.

    [​IMG]
     
  6. Feb 13, 2020 at 3:18 PM
    #6
    paradizecityz

    paradizecityz New Member

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    No, I meant to the power, wherever you run it from like battery or a constant power or power from neighboring switch but not the illuminated wire
     
  7. Feb 13, 2020 at 3:23 PM
    #7
    jtdunc

    jtdunc [OP] New Member

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    Now, I did connect to the foglight relay and am grounding off of that relay's pin as shown in the first few pix of this thread:
    https://www.tundras.com/threads/easy-5-min-anytime-fog-light-relay-mod-diy.20508/

    Okay, so NOT the illumination wire which is relayed but I need constant power. Without going through the firewall grommet back into the engine bay, where could I Posi-Tap in for constant power?
     
  8. Feb 13, 2020 at 3:26 PM
    #8
    paradizecityz

    paradizecityz New Member

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    that part I don’t know. I did a lightbar and that had its own harness. Did some grill lights but had to run wire from fuse box through the firewall.
    Possibly some fuse incab? Or if you can run through firewall, you can do an add-a-fuse
     
  9. Feb 13, 2020 at 4:50 PM
    #9
    Jrharvey02

    Jrharvey02 Meh.

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    Terminal 1 (green): this is what will power your fogs, tap into a fuse next to parking break that provides enough amps and only is powered w/ ignition on.https://www.amazon.com/dp/B01BU59QA8/ref=cm_sw_r_cp_apip_o19CFll54W8jS

    Terminal 2 (red): Goes to the red wire of your fogs. This will give your fogs power when the switch in turned on (power is supplied from previous step)

    Terminal 3 (red): this is what will power your switch letters. Tap into a neighboring switch, it will have a few wires going into it from the rear, one of which is only hot when the headlights are turned on. Tap into that and connect to terminal 3.

    Terminal 4 (ground): ground this as close as possible, use that ground bolt in the kick panel you mentioned you saw.

    I’m assuming your ultimate goal is to have your fogs completely independent of the stock on the steering wheel and controlled by your new switch. If this is the case, follow these directions according to your picture and you’ll be golden.
     
    Last edited: Feb 13, 2020 at 4:55 PM
  10. Feb 13, 2020 at 11:45 PM
    #10
    jtdunc

    jtdunc [OP] New Member

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    @Jrharvey02

    This was all run through my foglight relay. Your instructions remain the same?
     
  11. Feb 14, 2020 at 5:34 AM
    #11
    Jrharvey02

    Jrharvey02 Meh.

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    No, run terminal 2 to relay (instead of fog light). Tho I’m not sure what else is going on w that relay since it’s factory. My statement above is more for a new relay being used to power fogs...
     
    Last edited: Feb 14, 2020 at 7:04 AM
  12. Feb 14, 2020 at 7:02 AM
    #12
    ncorry

    ncorry New Member

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    Did you watch the video at the bottom of the first post in the Easy 5 minute anytime fog post you linked to? Terminal 1 needs to be 12V + with ignition. Use add a fuse as JrHarvey said. Currently you're running Terminal 1 green all the way to the ground of the factory fog relay? Is the fog relay also grounded? If so I don't even understand how they are working at all.........

    At this point, I'd just take the factory fog relay out of the equation and use a standard Bosch-type relay set up to allow the fogs to come on whenever the key is on (constant-on trigger wire from relay). Then follow JrHarvey's directions. And move terminal 3 from door light switch to whatever switch is next to the switch you're installing. And use in-line fuses everywhere..... and for God's sake's disconnect the battery. I'm actually surprised your computer works at this point.... Unless I'm completely misunderstanding the "Right now I'm running one ground wire from the foglight relay in the engine bay all of the way to Terminal 1. Green" statement.
     
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  13. Feb 14, 2020 at 7:11 AM
    #13
    ncorry

    ncorry New Member

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    OK, I watched the Easy 5 minute video and now understand what he's doing....... He's using the switch as a grounding circuit. Take a look at the bottom diagram at post #4 at this link: https://www.tundras.com/threads/2019-tundra-air-on-board-wiring.39909/#post-1015180
     
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  14. Feb 14, 2020 at 11:45 AM
    #14
    jtdunc

    jtdunc [OP] New Member

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    Thank you all for your patience and kindness. I'm bold when it comes to projects like this. Yes, was using switch as a grounding circuit.
     
  15. Feb 14, 2020 at 11:51 AM
    #15
    TheBeast

    TheBeast The Beach

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    if you want to illuminate switch like others in cab then piggy back on one next to it using posi tap. That's what I did on mine for my ditch lights.
    for the other wires: one to ground (dedicated), one to +12 and one to relay if I remember correctly.

    @BlueBottle always have good inputs.
     
    jtdunc [OP] likes this.
  16. Feb 14, 2020 at 11:57 AM
    #16
    fisherman951

    fisherman951 LT dreams ....

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    Colors are different but maybe this will help??

    33651F96-B1E8-414B-8A62-50ADCC688965.jpg
     
  17. Feb 17, 2020 at 4:06 PM
    #17
    jtdunc

    jtdunc [OP] New Member

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    If you were grabbing +12v power, which fuse would you tap into? Cigarette lighter? I do charge my phones and run GPS power off that circuit.
     
  18. Feb 17, 2020 at 5:39 PM
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    Jrharvey02

    Jrharvey02 Meh.

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    Rear Park Light fuse, it’s 15 amp and surely should have some amps to share. I’ve never had an issue.
     
  19. Feb 17, 2020 at 6:45 PM
    #19
    jtdunc

    jtdunc [OP] New Member

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    Is that fuse under the dash near the emergency brakes?

    Can't find in on the schematics.
     
  20. Feb 17, 2020 at 7:17 PM
    #20
    Jrharvey02

    Jrharvey02 Meh.

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    Yes, the cap to that fuse box has a diagram on it, take a peek at that...
     
  21. Feb 18, 2020 at 6:26 AM
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    ncorry

    ncorry New Member

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