The following is per my GM manual for 1994 Ciera.

The switches are inside the front doors. They are connected to the
outside door handle. The lights can be turned on just by lifting
the handle. The door does not actually have to open.

The switches do not directly control the lamps. They are an input
into the "Multifunction Control Module" (this is what keeps the
lights on for 45-60 seconds after you close the doors). The module
actually control the lamps. (The rear doors are different) If only
one front door causes this problem, the module itself should be
OK.

The wire color for the Driver door switch is Lite Green w/Black
stripe. If it is chafed/shorted to frame/ground, could cause this
problem (besides bad/shorted switch)

Good luck,
Reed