my dealer said he would check this for me and give me the code numbers, but that wont tell me what the codes mean, for that I need to go back and have a tech do it, and then they charge me.
So is there somewhere I can look up code numbers and find out what exactly the codes mean.......................

 

You can take it to any parts store and they will read the code for free. Then google that code to find out what it means.