12v electrical help (switch wiring)

[Sagebrush1]

Hello,

I know just enough about this to be dangerous, so bear with me….

I put some front and rear lights on my Polaris a couple years ago. No issues-always function normally.

info:
The power/ground is supplied by +/- bus bars under the hood. They only get power when the ignition is on.

the lights came with what I assume are relays, and inline fuses wired into a pre-assembled harness.

the existing switches are illuminated when the power is on.

So today I got some new switches to upgrade so that they are thatilluminated when “off”.

I removed the old switch, and replaced it with the new. I just hooked up the power (position 2 on new switch), and ground ( position 3). When I actuate the switch I blow a 10a fuse on the vehthat is supplying power to that accessory bus.
I didn’t take the install any further

here are pics of:
1) the old switch
2) the new switch
3) the position indicators for the new switch
4) the bus bars, fuses, and relays under the hood.

What did I do wrong?

 

[Sagebrush1]

Ok. This is what I take to be a correct understanding of this circuit. Is this correct?

 

[BearFoot]

I just hooked up the power (position 2 on new switch), and ground ( position 3).

Seems position 3 should not be grounded, assuming incoming & out going are the same polarity.
Blown fuse = short, + and - connecting with no load in between

 

[marksjeep]

Ditto above. 2 is power in from your fused source. 3 is going out to your relay to trip relay closed when switch is closed. 7/8 are grounds. 6 is your +12vdc from lighting circuit so backlight is on when lights are on.

 

[Sagebrush1]

Ok, I got it figured out and everything works. I can’t believe I Made it to 48 without knowing how a relay works, ha! At least I learned something that I’ll be able to use in the future.

thanks for the help