Dodge Cummins Trouble Codes Discussion

In the “Idle Clatter” column in the Turbo Diesel Register, Issue 89, we briefly discussed the dashboard check engine light (CEL) and what it means. As a TDR member you can download the diagnostic trouble codes (DTCs) that turned on the check engine light using a code reader/scan tool and interpret what they mean. You then can know where to look to fix the problem. A good mid-priced scan tool is therefore the next recommended item to go into your tool kit. The scan tool is plugged into the OBD2…