KZYEE KC601 Heavy Duty Diesel Truck Scanner – Full-System Diagnostic Tool fits for Cummins, CAT, Freightliner, International, Mack & More – Read ECU Data, Clear DTCs, View Live Data. ✔️【Catch Problems Early 】 This heavy duty diesel truck scanner reads & clears fault codes, ECU data, and live data so you can spot issues before breakdowns happen.