OBD2 code reader for vehicle - $40 (Milwaukee)

allows users to read, interpret, and clear engine trouble codes from a vehicle's On-Board Diagnostics (OBD2) system It helps users identify and troubleshoot potential issues indicated by the "check engine" light, providing information on the nature and severity of the problem. Beyond basic code reading, some models offer additional features like live data monitoring, freeze frame data, and the ability to perform system tests like EVAP and O2 sensor tests.