THINKSCNAPLUS S4 Car OBD2 Scanner Code Reader Engine ABS SRS TCM Diagnostic Tool
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.