ElmScan 5 Compact OBD-II Scan Tool

On-Board Diagnostics (OBD) is a generic term referring to a vehicle’s self-diagnostic and reporting capability. Through a port, it provides realtime data in addition to a standardized series of diagnostic trouble codes (DTC), which allow one to rapidly identify and remedy malfunctions within the vehicle. OBD-II is simply an improvement over OBD-I in both capability and standardization.

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