I have a 2007 Ford five hundred with 87,000 miles. Very well maintained.
I didn't see anything on this, but interior lights flickering. Sometimes I can move the door handle a bit and they stop. Sometimes open the door and shut it and it works. I've been told a body module but that just doesn't seem right and don't want to just throw parts at it. So thought I'd ask if someone has had this before I start removing the door panel and following wires and things.

 

Yes, the DOOR ACTUATOR, or as you say door module. Start with the DRIVERS FRONT one, as all are specific. Later, when another one goes out, it will be easier to fix,