87 maxima reverse lights not working

I check all fuses and bulbs, where esle should i look? THANKS

the switch in the trans...that's what it was for me...i found that out because after i had the trans replaced, they were working again...im not sure how easy it is to fix tho...

o n btw i've got a 89 5 spd, but it was still the switch that made the lights not work, because the bulbs were fine, i checked before the trans was switched