I have a 2003 AWD Town and Country. THe AWD does not work

check the connections under the steering wheel

No. I think even the trans from the 3.3 and 3.8 on t&c are different. Plus there is an AWD t&c that is different yet. If you are looking at used, there should be just as many junk t&cs as there are sebrings in the yards.

I replaced the fan module under the glovebox on my 2005 Town & Country last night. Mine would not shut off at all with key on. It only blew on high no matter where I set the switch. Mine also had the climate control which makes a difference. If it is not the auto climate control it is usually the blower resistor if the other fan speed selections don't blow at all except on high.

Its hard to understand what you are asking?The front driveshafts are attached to the wheels. the rear wont turn if the wheels are on the ground. I would never buy a car with parts disconnected. sounds like BS.

Awd is on demand 4wd, better fuel economy
4wd high is locked in high range
4wd low is lock in low range

Are the front wheels turned all the way left or right?
The steering mechanism may be locked, When it is the key cannot turn. If they are turned "hard" left or right pull down in the direction they are turned...it will be hard to pull AND at the same time turn the key. This should unlock the key IF the wheels are turned this way.
Let me know if this helped and if there is any additional information I should know to help you!

YOU NEED TO HAVE ABS CONTROLLER SCANNED FOR DIAGNOSTIC TROUBLE CODES..THE SYSTEM HAS DETECTED A FAULT..A GOOD SCAN WILL YOU LEAD DOWN THE PATH TO FIXING THE PROBLEM..YOU CAN SEE IF WHEEL SPEED SENSORS ARE NOT WORKING,IF YOU CAN'T COMMUNICATE WITH CONTROLLER,ETC..LET ME KNOW WHAT IS FOUND

The input and output speed sensors look identical on the connector side. The one over the solenoid pack is the input, the one closer to the left frame rail or left front wheel is the output sensor. I hope this helps.

Replacing axle seals isn't something you could do in a few hours but not impossible. The short and sweet of it is you have to get the axles out of the differential, so you can pop the old seals out and replace them, My time frame estimation would be about 5 hours for the whole job