c240 king

my cig lighter stopped working, so I checked the fuse and it seems fine. I changed it anyway. so I purchased a generic 3 outlet 12v connector.
I already removed everything.
there is 4 wires 1 yellow and black
1 brown
2 gray
I dont know which one is the positive and negative and what are the other 2 for.
any help is appreciated
thanks guys

jrsmith_68

Do you have an volt/ohm meter or a test light? You need to figure out why your lighter is not working if the fuse is still good. Do you have voltage at the connector for the lighter? You can also use the ohm meter or test light to check the wiring on the new 3 way. The center connection in the lighter is positive. Check which wire goes to which center by checking continuity.

m111power

In my 02 C230 coupe I had done some mod like swap speakers aftermarket HU Install AMPs etc etc .I found out All the brown wire are ground.

valexv

i think the brown is ground, yellow and black is power, and one of the gray i think gray and blue is illumination

c240 king

thanks i figured it out brown was ground yellow and black power and the two gray were just the light around it

fanito

I was going to tell you to look at my pics in the AVIC thread, shows a little about the colors and stuff...
https://mbworld.org/forums/c-class-w...-images-3.html

C230 Sport Coup

If you look hard, you'll find a thread I posted on this...
with pics. There's a light in the lighter socket, which is what some of those are.
https://mbworld.org/forums/c-class-w...-resolved.html

I didn't post pics.
Just use a voltmeter.
You want the wires that are 12V with the ignition on, and not effected by the dimmer
(ie usually the trip reset switch, turn it to adjust...if it goes up and down it's the light).
I think, perhaps I used brown and black? Not sure.
It was self evident when I disconnected the wires which were for the light, and which were for the
element.
BTW- the 3 outlet unit pictured here is a POS.
Try to find one of good quality that won't get messed up everytime you put a connector in or out.
Kragen has one with a USB power outlet built in. Another project.
And highly recommend, opening it up and cutting the LED's. Way too bright and distracting.
I drilled holes in the bottom of the shelf, and screwed it in place.

m111power

+1