OBD2 (On-Board Diagnostics II)

Diagnostics

standardized vehicle diagnostic interface — OBD2 is the worldwide standard for vehicle diagnostics. Uses 16-pin connector, 5 protocols (CAN dominant since 2008). Supports live data, DTCs, freeze frames, mode 6 monitoring.

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Related terms

DTC (Diagnostic Trouble Code)
standardized fault code stored by ECU
EOBD (European On-Board Diagnostics)
European OBD2 standard
Limp Mode
reduced-power safety state

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