Vehicle Diagnostics: What Is OBD? | #EngineeringTheJigsaw | F18

In previous EnginEEringTheJigsaw episodes we've mentioned OBD in the context of #VehicleDiagnostics and talked a little about its history and what it is for, it's time to fill in the gaps though, what is OBD On-Board Diagnostics?

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The emission characteristics of vehicles are monitored by the legally prescribed on-board diagnostics (OBD). Each emission-relevant ECU must therefore support the OBD diagnostic. If exhaust-related errors occur (for example, a misfire), they are stored in the fault memory of the ECU and the driver is warned by an indicator, the so-called MIL (malfunction indicator lamp). Using an OBD diagnostic tester, the stored DTC (diagnostic trouble code) can later be read and analyzed.

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[vythinathanduraiswamy]

Amazing explanation of OBD basics. Have to see the other videos. Thank you very much.