Why do I only have brights?

hello everybody, i just have what is hopefuly a quick question regarding my girlfriends truck... the other day when i went to turn on the headlights they didnt come on, and instead i had the indicator that the saying brights were on when in fact they were not. Now the only lights i can get on are the brights and the parking lights/turn signals (for the front, all rears are fine). any ideas? the panel covering the fuse box is missing so i referred to haynes manual and checked the fuses.. nothing.. any input would be most appreciated. thanks in advance!

 

The only other thing i can think that would be helpful is sometimes the low beams do come on but, then shut off shortly after forcing me to turn my brights on... yet again...
please people... im sick of blinding you with my brights

 

new bulbs, the low beam filaments both might be burned out...stranger things have happened.

 

But they come on every once in a while... Are the turn signal switches known to go out?

 

do you have a multimeter you can check the inputs w/? that would be an easy way to see if its a wiring issue.

 

nope... dvom broke and never replaced it... looks like im gonna need to pull the turn signal switch and manually jump to see if its the switch cus its not the bulbs, fuse, or relay... blah.. thanks for the input