Test A: All Windows Inoperative

Turn ignition on. Check 30-amp power window fuse in fuse block, near left kick panel. If fuse is blown, replace fuse (repair wiring if necessary). If fuse is okay, check voltage at Black/White wire terminal of main switch connector.
If battery voltage is not present, repair Black/White wire between fuse and main switch. If battery voltage is present, check continuity between ground and Black wire terminal of main switch connector. If there is no continuity, repair Black wire. If there is continuity, replace main switch.