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4 Pin LED Switch wiring

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Rolla

Joined: Oct 08 2009
Posts: 25
Location: Bay Area

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2009 Toyota Corolla
Last updated: 07/02/10

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Post Mon Aug 16, 2010 2:21 pm

Hey guys,

I need a little help wiring a 4 Pin lighted rocker switch. The switch has no labels of any sort so I tested it. Below are the results.

User posted image

Now how would I go about wiring it so that the LED works together with the switch? Will this work?

User posted image

BTW the switch is used to control an LED tube.
PwrRngr

Joined: Jul 19 2007
Posts: 4410

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2003 Ford Mustang
Last updated: 01/23/09

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Post Mon Aug 16, 2010 2:34 pm

That's kind of generic on what you have. What type of switch do you have? Is it a standard DPST? Or is it a SPDT with a terminal for LED ground? Post a link where you bought the switch.

Regardless, you can NOT wire it the way you posted in picture 3. You can NEVER connect positive voltage to ground (Pin 4) b/c it's a short.
bad venge

Joined: Jul 28 2007
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Post Mon Aug 16, 2010 3:00 pm

You need to take an ohmmeter and test it ,
check with switch in off and then in on position
likely 1 is power and 3 is output if the switch is closed
4 might be the ground for the light
Rolla

Joined: Oct 08 2009
Posts: 25
Location: Bay Area

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2009 Toyota Corolla
Last updated: 07/02/10

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Post Mon Aug 16, 2010 3:21 pm

Lol I figured that was wrong just by looking at it. Heres where I got it from:

http://cgi.ebay.com/ebaymotors/On-Off-Head-Ligh...tors_Car_Truck_Parts_Accessories

I tried asking them on how to wire it of if it was DPDT OR SPDT but they never replied. I'll do some testing tonight with some LED's and a 12V battery. My uncle borrowed my voltmeter icon_sad.gif
bad venge

Joined: Jul 28 2007
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1998 Dodge Avenger
Last updated: 11/15/13

2005 MINI Cooper
Last updated: 12/28/09

2010 MINI Cooper
Last updated: 01/24/10

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Post Mon Aug 16, 2010 5:26 pm

Hmmm thats what happens when you buy from Hong Kong
Black DX

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Post Tue Aug 17, 2010 2:35 am

is pin 3 doing anything? I'd think it'd be pin 1 and 3 for the led and pin 2 and 4 for the pass thru...
PwrRngr

Joined: Jul 19 2007
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Post Tue Aug 17, 2010 2:57 am

My guess is that it's a SPDT switch with an extra prong for the LED (kinda like the ones from here are SPST w/ an extra prong for the LED).

My GUESS is that you connect things between pins 1 (or 2) and 3. Then you ground pin 4 for the LED. THIS IS JUST A GUESS. Make sure you test it with a ohm meter to double check.
Rolla

Joined: Oct 08 2009
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Location: Bay Area

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2009 Toyota Corolla
Last updated: 07/02/10

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Post Tue Aug 17, 2010 10:38 am

Thaks guys! After much criss-crossing wires and getting zapped a couple times I figured it out.

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