So, there is only one daytime running lamp working on my truck. I have noticed this issue on a lotof these trucks.In fact, before I owned one, I thoughtthey weresupposed to be that way.The only thing I knew to do wasremove the bulb and put it in the other socket and still only the originally working one would light up, thus eliminating the bulb. The wiring looks good and Ican't imagine there would be a fuse for just one lamp. If it matters, the working one is onthe driver's side. Anyone know the fix for this seemingly common issue? BTW, no other electrical malfunctions exist to my knowledge. Well, the under-hood light seems to be out, but I haven't investigated it. Any help would be appreciated.