2003 Dodge Caravan Battery?

im going to say an almost dead battery .the hum you hear might be the fuel pump.you never heard it before because the van normaly starts .so boost your van if it starts you may have to replace the altenator the guages, no worries many cars do that .thats a code needing erased and if you disconnect the battery that may go away.

You can remove the fuse for the interior lights after you turn van off for a temporary fix.Thinkin there should be some kind of sensor/timer thats gone out,not allowing the lights to shut off after van is shut down and doors closed

i would check the alternator

SOUND LIKE SEVERE ENGINE MISFIRE HAVE VAN SCANNED AUTO ZONE WILL DO IT FOR FREE .BUT MAKE SURE FUEL FILTER NOT STOPPED UP MAKE SURE PLUGS AND WIRES IN GOOD SHAPE.FILL FUEL TANK UP.PUT A BOTTLE FUEL INJECTOR CLEAN IN FUEL TANK.TO CLEAN OUT FUEL INJECTORS WHILE YOU DRIVING THE VECHICLE.ALSO BAD COIL OR COILS WILL CAUSE ENGINE TO MISFIRE SHAKE.

it sounds like you have faulty ignition switch

i have the same van (2003), same problems, the deler just replace my PCM cost me $950 van works fine untill now.

Transmission range sensor is what it is called .

does it try to turn over if not it could be that the battery is dead if that not it then you mit have a blown fuse

FUEL PUMP

replace the ignition unfortunetly thats probably going to be the fix