My drivers door red warning/safety light does not work even though the bulb is good. Could this explain how the lights are working now? When any of the rear doors are open their respective light does not come on. However if any of the front door is open (Lights On passenger side only )then the rear lights come on. It doesn't make sense to me. I would think they have independent circuits. Can someone explain. Also I recently renewed the two brake lights (1156 bulbs same brand ) and the right bulb is noticeable brighter. I cleaned and deoxit all contacts at the connector and cleand and applied dielectric grease on the bulbs as well. I swapped bulbs around...still right side brighter. Any thoughts?