[quote=RapidFire]
So, is there any way I, or someone with special equipment, can test the sensor?quote]
Yes you can check them, I'll let you know how but it is in the shop manual.
You will need a digital multi-meter than can read small resistance values, from 5 - 100 Ohms and as low as 1 volt.
The way to check this part starts on page 9-335 of the 2004 shop manual.
Good luck, I have done one on a '93 Concorde and found it was NFG. The dealers service rep was impressed, but they just change parts until they get lucky from what I have seen.