95 240sx power windows not working.

[ardeine]

having an issue with my windows not rolling up or down. checked all the fuses which are all good and decided to try changing the relay but when i did still same problem.
could it be because my alternator is not working?
both driver side and passenger dont work. did a engine swap awhile back and windows worked fine before and after swap it stopped working.

[tacotacotaco]

check your window amp?

[rsp supra]

I didn't know the window amp would effect both Windows. Hmm news to me

[Agamemnon]

Did you check the 25A fusable link under the hood?
Recheck your grounds too.