Yongtek ELM 327 Bluetooth Obd2 Scan Tool - For Check Engine Light and Other Diagnostics - Android Compatible Works with all 1996 and newer cars & trucks that are OBD II compliant Read diagnostic trouble codes, both generic and manufacturer-specific, and display their meaning. Clear trouble codes and turn off the MIL ("Check Engine" light) Supports multiple protocols including CAN Bus; (over 3000 generic code definitions in the database) Wireless Bluetooth connection to your computer and phones. No More Wires!