2006 Tacoma led light bar

Keith1138

Keith1138

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Joined
Nov 18, 2015
Location
Harrisburg NC
One of my friends has decided to get a light bar to put on his tacoma. We are wanting to use on of his open oem switch places. My thing is how would you wire it so the switch is only illuminated when the truck is on?

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if im drawing the power for the switch from the fuse panel how would i eliminate the power wire running from the relay with out creating a power draw
 

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Usually on most rocker switches, they take power, load, and ground. If you were to wire the power to switched power, it'll only light up when the key is on and only be able to turn on the bar when key on. That's all I got unless I see more info about the switch. Some have separate illumination power wires, which could get wired up to illumination for power only when dash lights are on.
 
a_kelley said:
Usually on most rocker switches, they take power, load, and ground. If you were to wire the power to switched power, it'll only light up when the key is on and only be able to turn on the bar when key on. That's all I got unless I see more info about the switch. Some have separate illumination power wires, which could get wired up to illumination for power only when dash lights are on.
Click to expand...
So will the power be in the same slot of the relay as the positive wire off the battery?

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Keith Odom said:
So will the power be in the same slot of the relay as the positive wire off the battery?
Click to expand...

A relay is a just a type of switch. When the relay is switched on (by energizing the coil), the contacts are connected. The coil needs a small amount of current and a ground. There are only 4 terminals on the most basic type of relay; two terminals are for the coil (power and ground) and two for the main load contacts (in and out, doesn't really matter which terminal is which on basic generic relays).

In your case, you were asking about power for the switch from the fuse panel. Power would go from the fuse panel to the switch input, and then from the switch output to the relay coil. The other relay coil terminal would go to ground.

For the main load contacts on the relay, one terminal would come from the battery (through the fuseholder in your diagram or whatever), and the other terminal would go the the light bar.

There are a lot of redundant connections on your diagram, mostly the grounds.

Using an illuminated factory switch or whatever only changes the connections at the switch (additional wiring for illumination, etc), and doesn't have anything to do with the relay itself.
 
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