UIF Technology U581 CAN/OBDII/EOBDII Memo Scanner (Live Data) Reads live sensors such as wide-band O2 sensors, fuel adaptation, mass airflow (MAF) sensor, ignition timing advance, and lambda readings. Reads & clears generic & manufacturer-specific Diagnostic Trouble Codes (DTC). Retrieves Vehicle Identification Number (VIN) on 2002 & newer vehicles that support Mode 9. Stand-alone unit without need for additional laptop computer to operate.