CreaderIV is the newest portable auto read and clear code tool launched by Launch. Because it's very small, so it carries easily for drivers. In thus, it can tell the driver the fault of electrical system at any time. After connecting the Creader to the auto socket, the driver can read and clear trouble code through operation with buttons on the unit. Creader can read trouble code and clear trouble code. In addition, it supports OBD&EOBD protocol and otherwise systems.