KONNWEI Bluetooth Mini Blue ELM327 OBD OBD2 OBDII Scan Tool Car Auto Diagnostic Tool Lateat software version V2.1 supports almost all OBD-II protocols(only V1.5 supports SAE J1850) Read diagnostic trouble codes, both generic and manufacturer-specific, and display their meaning (over 3000 generic code definitions in the database). For your vehicle to be OBD II compliant it must have a 16-pin DLC (Data Link Connector) under the dash and the Vehicle Emission Control Information Label must state that the vehicle is OBD II compliant.Retrieve Fault Codes (DTCs) and clear Check Engine lights Please note: It only works with car (does not support truck). It only works with Android 4.0-Android 4.3 version. Please connect the item to your phone through bluetooth OBD II option. If the driver CD was broken, please contact us and we will provide a download link or send the software to you through Email, Thanks! Can also be used with a PC with a Bluetooth Card. Bluetooth connection, no Batteries, Cables, or Switches.Wireless (Bluetooth) 5~ 10 meters