courtesy lamps staying on

Can't get the courtesy lamps to turn off. Has anyone else had this problem? Where would I start to look for the problem?

need a little more detail. Where you working on anything before this started? when did you notice it?

In my 93 the wire that powers all the courtesy lights is yellow. There are multiple disconnects throughout the system that you can use to isolate sections and hunt down grounds. Also check your headlight switch... It might have accidently got rotated and turned on all the lights.

Wow! Do I feel stupid! Daughter had been driving car and she rotated light switch. Forgot how these older cars fuctioned.