Hi everybody, i have a 2000 monte carlo ls, recently my headlights are inoperable, I have to hold the flash to pass to get lights at night. The DRL's and marker lights work correctly. I have tested all fuses, bulbs and swapped out the headlamp relay to get no solution. I know how to use a test light, can anybody tell me what wires I need to test to see if my headlamp, multi-function or bcm are working correctly. Any help is appreciated. Thanks

 

Bump.