The switches are located in the door pin...the part the door "grabbs" on to when it's shut. If you look behind the pin toward the inside of the car, you will see a little aluminum part that you can push in toward the inside of the car. Which ever door you open, your lights should come on. This may sound silly, but did you make sure that the middle light switch in the light that's in the light in front of the mirror is fully in the correct position for the lights to come on? I had a problems similar with this switch not having the side toward the front to the car fully depressed. A new used light replacement fixed this. More information I cannot offer, but if you search on the name javier and interior light, there is a whole lot more of info to which you have access.