Diesel Heavy Truck Scanner Diagnostic Tool DPF Regen For Cummins Caterpillar. For truck owners, it's necessary to perform DPF regeneration regularly. Multi- System Scan & Diagnostic -- Support more than 30 system diagnostic analysis (engine, ABS, air conditioner, Gearbox, battery, oil lamp reset, airbag, safety lock alarm, tire pressure, DPF, DTO, ECU and other systems) ,Complete function capability including DTC, DTC freeze Info, Live data, Operation test and Special function.