2012 GMC HD2500 Duramax 4WD
PO 606, tried to look it up here; said invalid number. Any help? Will double check tomorrow. No power loss, but headed out on a long trip next week and concerned-
Just for future reference, DTCs are a letter followed by 4 numbers. You should have entered "p-zero-six-zero-six".shepcal;1570735; said:Tried that first; after your reply, I tried it again in the DTC tool in the sticky- same result? Any idea what it means? A go to the stealer item?