Guide to Understanding DTC Codes

What is a DTC Code?

A DTC, short for Diagnostic Trouble Code, is a code used to diagnose malfunctions in a vehicle or heavy equipment. 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.

Having a basic understanding of DTCs can be helpful for drivers and fleet managers. Read on to learn more about DTCs, how they work, and how you can read them.

[mcolepicolo]

I have used DTC Codes in order to detect CAN missing messages or plausibility events. Thanks for sharing.

[RachelJoanna-ic]

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