P0700 Chrysler 04-PT CRUISER THEN P0701,P0702,P0703,P0704

Question

I just got a PT cruiser and the tranny wines when you put it in gear. But as long as it's winning it moves ,when it stops winning it wont move. I got the engine code p0700, then p0701,p0702,p0703,p0704 for incorrect ratio. Do I drop the pan and change the filter and oil or do I drop the tranny and replace it? It almost sounds like it's starving for fluid like a power steering pump does. The car has 120,000 on it ..I found the fan wires where bare and touching each other and it's not working either.