Spliced dimmer switch results in opposite dimming?

[barnum]

So I picked up a couple Carling switches for my efans and future set of off-road/driving lights. They have a dependent LED up top (on when switch is on) and an independent lower LED (on when switched power on/lights are on/etc). I wanted the lower LEDs to be on when my lights are on and work just like the rest of my dash so I spliced off of the dimmer switch but my aftermarket switches now dim opposite of everything else a.k.a. dim switch down -> LED gets brighter, dim switch up -> LED gets dimmer. I know I have the right wire but what in the...

I didn't have time to mess with it so I just wired it to a switched power source in the mean time and need to rewire them anyways so it's not as messy. Any ideas? Am I completely electrically incompetent?

[Slumpert]

Hard to grasp but it sounds like your double feeding your led. On side your giving it +12 volts fixed ans on the other your giving it 0-12.Volts dimmed. So when your dimmer is set for full power very little voltage differential exists.

Try taking LED and wire it to ground and then to the dimmer supply you likely will need switch wires. Try with test led before you risk frying your switch one.

[barnum]

Slumpert, I see what you're saying and that definitely would cause the issue I'm seeing. I'll have to double check my wiring to see if that is the case, thanks for the help! I wouldn't have thought of that.

[barnum]

After putting a multimeter to the dimmer switch and referencing the FSM again, I found that the problem is that I did NOT double feed my LED. I had suspected that the dimmer switch provides the 0-12V however the dash illumination provides +12V to the positive side then 0-12V on the negative. This is where I was getting the opposite dimming because the dimmer switch is indeed 0V when "up" and +12V when "down". So I actually need to splice of of two wires from the dimmer switch to get the dimming effect.