my '94 525i has a "dip beam" error in the computer, in my understanding, it is about a busted fuse or light bulb on the headlights, i checked the car lights, fuses and everything is working fine - dim and high beam, what could be the problem? what are the other things that i need to check? what is the LKM? Is the LKM related to this? your expert opinions will be greatly appreciated, thanks!