2004 kia sorento the dome light will not come on when the "door button" is pushed in or even with the "on button" pushed in. I took the cover off the overhead light above the driver's area and noticed 2 diods soldered in place. The dome light does not have these diods. Does the dome light need diods? or is the switch possibly faulty. The light does not work when we open the door or when we use the "on button". It will come on when the dimmer is put to the "on" position.

The problem is the diode needs to be replaced. The dome light works in the "on" position, but does not work when any of the doors are opened. The diode itself is about half the size of a dime which you can buy from a kia dealer for less then $20. You don't have to disconnect the battery to do this.
1. Remove the kick panel which is right next to the foot rest on the drivers side and where the fuse box is located. You will have to pry open the door foot guard to get to the other screw for the kick panel.
2. right next to the fuses box there is a wiring harness wraped in black cloth like material or some type of harness cover, just peel it back or remove. You can feel the diode through the wrap.
3. the diode is in a sleeve like incasement or cover carefully pry open and slide the diode out.
4. replace diode with new one and your done.

Let me know if you got a solution to your problem as I have the same issue with my 2004 Kia and the dealership wants $110 just to look at it.