EasyDiag4 is a vehicle fault diagnosis tool software developed by Launch Tech Co. Ltd. It is designed for the vehicle maintenance market and is compatible with the iPhone platform. With its mobile intelligent terminal platform, EasyDiag4 offers a convenient and efficient way to diagnose vehicle issues.

Using a dedicated connector, EasyDiag4 establishes a Bluetooth connection with the vehicle, enabling one-click intelligent diagnosis. This powerful software supports fault diagnosis for various systems, including the power system and safety system. It offers features such as reading DTCs (Diagnostic Trouble Codes), reading data streams, clearing DTCs, and resetting service lamps.

EasyDiag4 includes EOBD (European On-Board Diagnostics), maintenance, and special function software. It also provides diagnostic software for mainstream vehicle models. With its comprehensive range of features, EasyDiag4 can cater to the needs of most users in the vehicle testing field.