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Light bar help

Discussion in '2nd Gen. Tacomas (2005-2015)' started by CenTexasTaco, Oct 17, 2014.

  1. Oct 17, 2014 at 6:19 AM
    #1
    CenTexasTaco

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    CenTexasTaco [OP] Well-Known Member

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    Is there a way to have a light bar wired into the same wire/switch as my fogs iris it easyir to just have it's own switch? Can someone help me out lighting is my weak point when it comes to trucks
     
    CenTexasTaco, Oct 17, 2014
    #1
  2. Oct 17, 2014 at 6:21 AM
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    chris4x4

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    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    FlimFlubberJAM
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    Depending on the lightbar size, the fog light circuit may not be able to handle the extra load, thus blowing the fuse.
     
    chris4x4, Oct 17, 2014
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  3. Oct 17, 2014 at 6:22 AM
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    medic2230

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    medic2230 @Koditten Pirate Radio member #002

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    What if you only use it to trigger the relay for the light bar?
     
    medic2230, Oct 17, 2014
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  4. Oct 17, 2014 at 6:24 AM
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    chris4x4

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    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    That would be fine. Ive done that many times in the past, so you're only using it as a 12 v. "signal" to trigger the relay, allowing the power to run thru a dedicated harness.
     
    chris4x4, Oct 17, 2014
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  5. Oct 17, 2014 at 6:35 AM
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    CenTexasTaco

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    CenTexasTaco [OP] Well-Known Member

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    It's a 31 inch Cree and I'm pretty sure they are 3 watt diodes
     
    CenTexasTaco, Oct 17, 2014
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  6. Oct 17, 2014 at 6:38 AM
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    chris4x4

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    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Use a relay, and run the + wire for the relay to the + wire of one of the fogs. Then run a harness directly to the light bar. This should allow the light bar to come on when the fog light button is pressed, without causing strain on the fog circuit.
     
    chris4x4, Oct 17, 2014
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  7. Oct 17, 2014 at 6:54 AM
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    CenTexasTaco

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    CenTexasTaco [OP] Well-Known Member

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    Ok thanks! Is there a specific harness I need or what ? Sorry for the bombardment of questions I just don't wanna pop more fuzes or have some shit catch on fire
     
    CenTexasTaco, Oct 17, 2014
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  8. Oct 17, 2014 at 7:13 AM
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    chris4x4

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    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Just make sure to get a harness that's ratted for the proper amount of amps. Best is to double the calculated amp draw of the bar (Watts / volts = Amps). So, a 200 watt light bar is going to draw about 15 amps, so a 30 amp harness would be sufficient.
     
    chris4x4, Oct 17, 2014
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  9. Oct 17, 2014 at 7:22 AM
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    CenTexasTaco

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    CenTexasTaco [OP] Well-Known Member

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    Ok what is the fastest way to do all that ? And will I have to do more stuff in the fuze box
     
    CenTexasTaco, Oct 17, 2014
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  10. Oct 20, 2014 at 10:50 AM
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    theblindchicken

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    theblindchicken Well-Known Member

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    Fastest way is to buy a relay harness kit. You can usually pick them up from most major lighting companies. Mikeveee from AVEC should be able to get you one very quickly. Only $16 too.

    From there, you're going to run the following 4 wires:

    +12v - battery
    12v - accessory (light bar)
    +12v - signal wire (splice into fogs or from a in cab switch)
    -12v - Ground
     
    theblindchicken, Oct 20, 2014
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