interior lights

I have a 2000 impala LS and haveing problems with the interior lights the foot lights work but the mirror lights dont work as well as the rear passenger lights also dont work the fuses are good and so are the bulbs
am i missing something ? a breaker or a fuse some place that i have missed
help would be appreciated with this littel problem
And yes this car does have the theater light system
Thanks

having the same prob. on my 03 Impala. any ideas?
thanks

swaped dimmer switch with one from another impala. did not help

It's most likely the BCM, as it is what controls the interior lights fade-out and delay shut-off.