Where does the turn signal flasher plug in for a 1998 buick lesabre turn signals do not flash they are a solid light however the hazard lights do flash?

Edited: The flasher for the turn signals is usually located on or near the column under the dash. Unscrew the three screws holding the cover on. The flasher unit is that 1" cylindrical unit with two posts plugged in to a wire. To replace, unplug, and plug in a new one.

The hazard flasher is a separate system.

Unedited: Look at the hazzard flasher; usually in fuse box round 1" or square 1") to get an idea of what it looks like and pull it out; then when you think you have found the turn signal unit, plug it in to see if that fixes it.