What causes the power door locks and interior lights not to work on 1996 Oldsmobile LSS

Interior lights dont work nor power door locks fuses are good. Saw somewhere that it coulld be a harness connection under the carpet but cant find that site now

Asked by for the 1996 Oldsmobile LSS
the drivers door will not open, even if you put the key in it.
what can I do?
2 more answers
It sounds like you need to go to your local auto parts and buy a motor manual for your car. Hanes makes a great manual for your vehicle. Some libraries carry motor manuals you can check out for free. Otherwise, expect to pay $30.00. Goodluck
I had the same problem, mine was a ground wire below the e-brake underneath the carpet. I just kicked mine and it worked you may have to tear the carpet up. Hopefully it will be as easy as mine was.