My courtesy lights keep coming on and going off while driving and even when parked and locked at night. I think it's the Body Control Module going wacky. Can I replace it myself and how??

 

Check the door latch switches first. They're much cheaper and easier to replace. The same switch that lights the "door ajar" light also controls the interior lights.

Number one rule in doing car repairs: When in doubt, replace the cheapest thing first.

 

So if I can find a dealer on eBay, I just need to make sure the part number matches then provide them a VIN to program and they will be able to send me one programmed for my vehicle? I will have a look in the engine bay and see what I can find. Thanks for the info and taking the time to respond.

 

With an 02 Concorde doing that, I can pretty much guarantee you that it is the door switch that is your problem, not the BCM.
Fixed that issue on a few Intrepid s. They are the same car, just different sheet metal.

 

Not sure how this went to this thread. Sorry.