My 2004 caravan 3.3l is draining battery at a quick rate. Have checked lights and normal draws, but everything seems good. could it be the alt diode bridge or pcm draining it?? Any help please.

 

"Have checked... normal draws"

So you connected an ammeter in series with the disconnected negative battery cable end and the negative battery post, let the van sit 15 minutes then took a reading and that reading was less that 30 milliamps?