This car obd2 scanner is capable of reading and clearing trouble codes of ECM/TCM/ABS/SRS/BCM/IC/AC Engine. You can diagnose the engine system via ecu obd2 port, support all 10 OBDII test modes, such as live data, O2 sensor test, component test and more;read and clear the engine error codes, find out the exactly problem, repair it, and turn off the MIL engine light.