Diagnostic Code Format
This is my first post. After searching for answers to my question, I couldn't find the information I was looking for. Sorry if this easily searched; I couldn't find anything.

Question: Is there any information returned from a diagnostic readout that attributes a code to the date it was first registered in the on-board computer?
Vehicle:
2006 Mercedes C-230
Plus, if your car is a 2006 model, then it is a W203. This is the W204 section. You might want to post in there to get the best responses to best help you.
Some ECUs can store historical DTCs so when you take your car to the dealer (as an example), they can really tell how many times a particular code has been triggered, how many times it was cleared... etc..
Some ECUs can store historical DTCs so when you take your car to the dealer (as an example), they can really tell how many times a particular code has been triggered, how many times it was cleared... etc..
Awesome, thank you.
This is exactly what I was looking for.


