Read and clear check engine light codes on most 1996 and later vehicles with this plug-in OBD2 scanner. The W2977 supports all standard OBD2 protocols, making it compatible with domestic, Asian, and European vehicles sold in the US after 1996.

• Compatible with most 1996 and later OBD2-equipped vehicles
• Supports all OBD2 protocols for broad vehicle compatibility
• Reads and displays diagnostic trouble codes (DTCs) with definitions
• Turns off the check engine light after repairs are made
• Erases DTCs and resets the OBD2 monitor system
• Includes user manual with comprehensive DTC code library
• No batteries required - powered directly from the vehicle OBD2 port

Tip: Always diagnose and repair the underlying issue before clearing codes. The check engine light will return if the root cause is not addressed.

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