The driver side headlight lowbeam is not working what could be the problem? on 1999 Saab 9-5

the lowbeam does not work but all the rest of the lights in the headlamp work. I already checked the fuses they all are good. the bulb is brand new. then i took passenger side headlamp and plugged into driver side and its doing the same thing so it has to be in the wiring or a possible bad/dirt ground i dont know.

Asked by for the 1999 Saab 9-5
replace headlight bulb even if high beam works and low beam don't. I just had to replace mine for same reason and now both settings work i have a 2000 saab 95 areo