I bought a new driver's side switch with lockout and replaced the old switch, but the windows still don't operate (front and back) Here's what I've done to test it:

1. Plug the driver's plug into the passenger's side switch - the window works.

2. Plug the passenger's side plug into the new driver's side switch - it doesn't work.

I'm almost certain the new swich is good. Is there something I'm missing?

Thanks in advance for your help,

__________________
Ray

1980 300SD (Anthrcite Gray) 253,108 miles
1982 300SD (Silver Blue) 242,398 miles
1982 300SD (Black) 263,185 miles