'02 T&C Compass/Temp. Display
 

My EVIC console on my '02 T&C recently started malfunctioning intermittently. I am pretty positive it is not the console itself that is faulty as it steadily gets power, it is just the information displayed is incorrect ( fuel mileage way off and resets periodically). I know that there is some kind of external controller that connects to the console that provides the information, but i cannot seem to trace to the location of this item. Can anyone tell me what the controller is called and where it may be located?

Any help will be greatly appreciated!

the control is the evic itself