KONNWEI OBD Scan Tool Bluetooth OBD2 Scanner( Supports ISO15765-4 (CAN), ISO14230-4 (KWP2000), ISO9141-2) Supports MOST OBD-II Protocols ISO15765-4 (CAN), ISO14230-4 (KWP2000), ISO9141-2 Support Android,Not support IOS Not compatible with ford and GM,Chevrolet Read diagnostic trouble codes, both generic and manufacturer-specific, and display their meaning Clear trouble codes and turn off the MIL ("Check Engine" light)