HD601 diagnostic scanner is exclusive for most American heavy-duty trucks & 12v vehicles, enthusiasts, DIYers, independent repairs, specialized garages and technicians. It is a professional car scanner worth having. Read Fault Codes: Read the fault code information retrieved from the vehicle system module. Clear Fault Codes: Clear the error code and still image data retrieved from the vehicle system module. Freeze Frame Data: This is a snapshot of the data captured by an electrical sensor almost immediately after the sensor detected an issue. Live Data: Read and display the real-time operating parameters of the current system module. Read ECU Information: Read and display the control system module information retrieved from ECU. Product Package 1*box 1*HD601 Handheld Truck code reader 1*6/9 pin connect cable 1*Manual