Does anyone know what all the bulbs do in the corner light assembly on a 99 Trooper? There is one light that I cannot get to turn on. Next to the headlight, there is an upper and lower light; the upper light is an amber bulb in a clear lens--this is the parking/running light. Below that is a clear bulb in a clear lens. What is this for? The turn signal is next to these two lights, and the fog lights are well below on the bottom of the bumper. I have tried every combination of lights/high,low beam/signals/with,without fog lights, etc., and this bulb will not turn on. There is a fuse in the fusebox called "cornering lights," and I'm not sure if this is related. Could the bulb be some sort of daytime running lamp option?