The 91-93 cars use the #1 fuse for the lights, front and rear. I would assume that the 94-96 cars would be almost identical in that respect. It may be controlling a number of other lights, so if the fuse does not fix it, you may have an open in the wiring near a splice.
1991 OCC 461 (.030 over 454) BBC, 3.23 posi, flash to pass, drop spindles & springs, Impala rims, Hydroboost, Recaros, MOMO/wood SW w/QR, custom wood shift knob, Pioneer DEH P77DH
1992 OCC now with 5.7 tbi, DEH P77DH
For a parts list, check https://www.impalassforum.com/vBulle...ion-parts.html