Dodge Repair Questions? Ask a Mechanic for Answers ASAP
I agree with you in that it's highly improbable that all solenoids went bad at the same time all of the sudden; I'm more inclined to think this is more of a current supply issue - either the control relay has lost power or the connector at the valve body has become loose or disconnected.
First thing I would do is check the connector at the valve body. If that checks out OK, then I would turn the ignition ON, take a voltmeter and check for voltage going through fuses % and 50 in the fuse box under the hood (IPM). If voltage OK, then I'd check the trans control relay (in the same box). Would you like me to upload a graphic with the location of the trans control relay and the two fuses?