2000 Buick LeSabre Windows locks don't work (Solution)?
1) Under the center of the driver seat, in the plastic sheath (that is only taped closed), you'll see four tan with white stripe wires connected with with a little white splicer... cut it out, splice together. This is the serial data lines.
2) Also fixed, cause it was corrupted, yellow wires connector box inside the wiring canal box underneath the carpet and along the driver's side door. 8 yellow wires connected into a little plastic box... clean the contacts.