2005 Chrysler T&C Touring Trouble Codes - What do these mean?
 

Ok, guys & gals I need a little help. This is my first post here, so bear with me.

My 2005 T&C has the check engine light on. I checked the trouble codes by holding down the Trip Odometer and the following codes were displayed.

100.3
100.5
100.7

What do these mean, and can I address them myself, or is a mechanic needed.

I saw somewhere that 100.3 means EATX COMMUNICATION FAULT but I'm not sure if that applies to 2005 or not. ALSO, what the heck does that fault mean anyway?? :)

ALSO, my air filter was filthy and needed an oil change. So I've taken care of those 2 things but haven't tried resetting the codes by unplugging the battery cable or anything.

Thoughts? Suggestions?