Excelvan Auto Trouble Scan Tool Professional Creator C110 V3.3 OBD2 II/EOBD Engine Airbag/ABS/SRS Diagnostic Fault Code Reader Scan Tool for BMW E36 E46 E90 E91 E92 E93 E39 LCD Display What You GetAuto trouble scanner professional creator for BMW E36 E46 E90 E91 E92 E93 E39 with 1 year warranty and friendly customer service. Read Trouble CodeReading code can be done with the key on engine off (KOEO) or with the key on engine running (KOER). Trouble code makes the control module to illuminate the malfunction indicator lamp(MIL) when emission-ralated fault occurs. Clear trouble codeIt allows the scan tool to delete the code from the vehicle's on-board computer. Use Up/Down buttons to select "Clear Trouble Code" from "Diagnostics Menu" and press "ok" button. Display Data StreamThe display function allows viewing live or real time data view of vehicle's computer modules. Component TestThe scan tool itself does not perform the component test, but commands the control module(ECU), which might have different criteria and method for stopping.