probably a stupid question for most, but new to the whole diesel scene and wondering if there is a way to read codes on a 07 F350 with out a OBD 11 scan tool? check engine light came on today, and would love to know what code it threw with out paying to take it to some one to read the codes. i know on some older vehicles you could. guess i am just wishing but worth a shot. and also any advise on purchasing a basic scan tool. i love my truck, but know little about diesels, and learning. not really into doing a lot of altering things, i like it alot now. but would like to keep up with the basics. and i understand its always good to run a scan to see if there are things happening that are not setting off the check engine light. any help for an old man looking to retire with his 350?