Car And Heavy Duty Tuning File ( Just DTC OFF )

A DTC, short for Diagnostic Trouble Code, is a code used to diagnose malfunctions in a vehicle. While the malfunction indicator lamp (MIL), also known as the check engine light, simply alerts drivers that there is an issue, a DTC identifies what and where the issue is. DTCs are also called engine vehicle fault codes codes, and can be read with a scanner that plugs directly into the port of a vehicle.