Wiring Guru's....SPDT w/ LED wiring.... - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 04-22-2008
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Wiring Guru's....SPDT w/ LED wiring....

Alright, I have a SPDT (on-off-on) switch with 2 LED's in it to wire up some lights. It has 3 prongs on 1/2 the back and 4 prongs on the other half. I need a wiring diagram helping me wire this sucker up.....Anyone wanna help?
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Old 04-22-2008
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SPDT does not mean its on-off-on

what are you wanting to do with it? what functions? use both on positions for different lights? or what?
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Old 04-22-2008
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It can Zach, theres 2 different kinds one is a On-On and the other is a On-Off-On
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Old 04-22-2008
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According to this it is:
http://shop.genuinedealz.com/Items/g...n%20Red%20lens

The light bar I am going to have on the BII has a light in each side. I want the switch to turn the left side on when it is one way, and turn the other side on when in the other position; center being both off.
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Old 04-22-2008
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What happens if you want them both on?
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Old 04-22-2008
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I thought about that, but the factory wiring box that is with the lights has it wired this way; that is why I am doing it that way. It makes it easier to build my own switch panel like this!

The front and rear lights will be used 100x more than the side lights.
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Old 04-22-2008
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I was just throwing that out there, can't wait to see it in action. Are you gonna leave the 55 watt bulbs in there or upgrade?
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Old 04-22-2008
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Since they are new I am going to leave them in there (since the 8 in the front equal more watts than the 4 lights I have on there now anyways - 440w). And with the 13 lights on, it pulls 59.5A, I am also upgrading my alternator from the stock 75A to something around 150A+.

The 100w bulbs draw 97.5A when all 13 are on. I might upgrade the fronts only to the 100w bulbs in the future.
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Old 04-22-2008
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something like this maybe

Last edited by zabeard; 08-26-2008 at 10:43 AM.
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Old 04-22-2008
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Quote:
Originally Posted by zabeard View Post
something like this maybe
yea something like that, but the switch I have has 7 pins on the back of it. I would assume that some of them have something to do with the LED indicators in the switch.
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Old 04-22-2008
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that is because it is SPDT....

so when you throw it to the right you can turn on 2 different individual circuits

throw it to the right and it will turn on 2 other individual circuits.

that 7th pin is probably ground for the LED.
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Old 04-22-2008
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so im guessing something liek this

Last edited by zabeard; 08-26-2008 at 10:43 AM.
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Old 04-22-2008
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Here is how they are laid out:

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Old 04-22-2008
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So something like this then
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Old 04-22-2008
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best way is to test it with your ohm setting on your meter. then you know the exact function of the switch

i check for continuity (sp?) (connectivity) between each pins when the switch is in each position
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