my OBD PORT under the steering wheel is not working properly I plug a tester to it it powers up the tester but it will not read any codes and hooked another tester and it does the same thing and someone told me to change the cigarette fuse I did and still the problem percist then a cowrker at a auto part store said check wiring and or it just needs replaced I called VIGO Dodge in Terre Haute and they said it would be $1900.00 just to replace it what can I do