I picked up a couple of modules and tried changing them, still no lights. I have the Haynes manual on this vehicle and the associated wiring diagrams. My buddy seems to think I have a faulty plug end or a short in the harness. Normally I wouldn't worry about this little nuisance but in Manitoba Canada we have to pass a safety check to register a new used car. I would really appreciate any feedback that you may provide.
Electrical problems are nightmares to troubleshoot.
About all you can do is to check wiring for damage and or bad connections, especially the ground wires. There also may be a faulty switch or relay somewhere. My interior lights stay on all the time. They get brighter when you open a door or use the dimmer switch to turn them on. You have answered a question somewhat similar to this for a 1997 Taurus and a 1996 Ford Windstar.