My CEL came on but I have no codes except a c-code 447 using the push odo button and key on trick.The truck runs fine, anyone know where to find the c-codes? Thanks from a newb but long time lurker.

 

Turn key 3 times

 

Sorry if i wasn't clear. I alredy did that and it showed no codes ie; Done. then I did the other instrument test and found the c-code

 

I googled it and found way too much information in a few minutes.... It's an instrument code....

If you've been lurking for a long time then you know the routine... Post your info and you'll get better help faster....

 

Eh, I am going to bring it to dealer for a diagnostic next week. Just wondered if anyone had experienced this before. don't think it matters as this is the 3rd gen 2003-2007 engine forum but it's a 2006 2500 w/5.9 Bone stock

 

Yep makes a difference. Some people don't post if you don't have your sig filled out. Also the 2006 had a few dash problems....

 

just an update incase someone searches.
It went out on its own and it never did throw
a code on the dash readout or scanner. Might be this
crazy bus system on the 06 and up.