A heavy duty diagnostic tool is a professional device used to communicate with electronic control units (ECU) installed in commercial vehicles and machinery.
Unlike passenger car scanners, heavy equipment diagnostic systems are designed for:
- Heavy trucks
- Construction machinery
- Excavators
- Mining equipment
- Agricultural machinery
- Diesel engines
These diagnostic tools can connect with vehicle communication systems such as:
- J1939
- J1708
- CAN-BUS
- OBD protocols
and provide access to ECU information.