Handheld code reader for T31 compatible with Mercedes-Benz1、Fitment: Car scanner is replacement for Alfa Romeo, replacement for Citroen, replacement for Ferrari, replacement for FIAT, replacement for Jaguar, replacement for Iveco. 2、Quick Diagnostics: The plug and play handheld OBD2 code reader is capable of scanning vehicle diagnostic trouble codes to identify emissions related problems in seconds. 3、Function: Read and clear codes, view DTC definitions, turn off check engine lights, check I/M readiness status, retrieve freeze frame data and vehicle information. 4、Performance: OBD2 scanner can retrieve I/M readiness status to check the monitors like misfire monitor, fuel system monitor, comprehensive components monitor, catalyst monitor, O2 sensors, EVAP, etc. 5、Data Retrieval: The OBD2 scanner can retrieve freeze frame data, including important engine parameters like RPM, fuel pressure, fuel trim, engine coolant temperature, etc.