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3 way switch wiring diagram

1790 Views 8 Replies 5 Participants Last post by  jackvz, 
cumminthanstrockin
As I approach the install of my reverse LED lights, I'm thinking of plans on how to wire them in. Currently, I have a wiring harness which has a relay with wires to the cab and two to the actual lights themselves, and another to source power. The best idea I have thought of is to put in a three way switch with one position, most likely the flat way (best way to describe it...) being on with the reverse lights, then once rocked to either side it will either keep them off or have them on by my command.

Honestly, I have absolutely no clue how to wire it this way, but have seen it done before. Do any of yall know how to do this??

Also, if there is an easier way, I'd love to know!


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Cummins tech2012
Get a on off on switch. Run your reverse light wire from the reverse switch to one side. And then back to the lights. In that position when in reverse the lights will come on. On the other side of the switch fine a 12vDc source and to the switch. Them to the lights. Put a one way diode in the wire going back to the switch on the side that goes to the revese switch that way you don't backfired the switch.
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Cummins tech2012
image_zps453f98c2.jpg Photo by Conner0110 | Photobucket


Here is a quick drawing of a diagram. You will have to scroll through the pics. It's like the 3rd or 4th one.
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