Chrysler Repair: 1995 Crysler Cirrus Radiator Fan Reversing, coolant temperature sensor, coolant temp

Question
This is a follow up to my previous question about the high speed fan motor in front of the radiator of my 1995 Crysler Cirrus.  I replaced the motor and it runs normal until the engine reaches operating temperature and then it stops and goes into reverse.  I believe that the coolant temperature sensor (which I replaced)opens and then the fan reverses.  I have also replaced the PCM, compressor, dryer and expansion valve.  The inside vents blow in the right direction.  

Answer
Hi John,
As I read the '96 manual that I own the low speed fan should come on first, but only when the coolant temp sensor reaches 220F and then the high should also come on when it reaches 230F. If the pressure in the air conditioning refrigerant reaches 210 psi the low will come regardless of the coolant temp and the high will also come on if it reaches 249 psi. The temp of the trans fluid will also  cause the low fan to come on if it reaches 244F and the high to come on if it reaches 252F. So there are many ways for the fans to be powered up, but all are mediated via the two fan relays and there is no way for those relays to change the polarity of their output voltage so as to reverse the motor because the relays share a common voltage source.
Is it the case that the low speed fan comes on first, and then the high speed fan? And conversely if things cool down does the high speed fan shut off first and finally the low speed?
The only possibility that I can see is that the radiofrequency interference suppressor module that is mounted on the fan housing structure lower area between the two fans and is connected to both fans is either electrically malfunctioning or somehow the plugs from the motors to that module are reversed in some manner that causes the polarity to reverse on the high speed fan when the two fans are operated in tandem. The low speed fan has three wires while the high speed fan has two wires according to my Chrysler shop manual but the Haynes manual says the reverse of that? Is it possible that the wires of the high speed fan were reversed when you replaced it? I don't understand what the third wire is supposed to be doing on the low speed fan and the circuity of that suppressor module is not explained in the manual. So I would think about that possibility of your having reversed the two wires on the new high speed fan. Also. did you touch any of the wires on the low speed fan? If either of those is not possible to have happened then you might want to try getting a new suppressor module or a used one at a wrecking yard.
I am very curious to know what you learn.
Roland