door windows on 1993 BMW 318i

i 've got a 93 bmw 318i none of my windows are working ..can all the switches be faulty or is there something other wise thats wronrg...help.............

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1 answer 1 comment
Yes, the master switch could be bad. I'd check the fuses first though..

Zee
i did check the fuse it's good.now is the master switch what test can i do to see if it's faulty.........