Description
Cat ET 2025 provides diagnostic and troubleshooting functions for supported Caterpillar equipment. Read, interpret, and clear active and logged fault codes; run actuator and sensor tests; view and record live data; and save or print diagnostic reports.
Diagnostic functions
- Read, interpret, and clear active and logged fault codes
- Run actuator and sensor active tests
- Configure system parameters and perform ECU programming where supported
- View and record live engine and machine data
- Use guided tests and fault-isolation procedures
- Save and print diagnostic reports
Supported equipment
- Excavators and backhoes
- Wheel and track loaders
- Bulldozers and graders
- Articulated and off-highway trucks
- Generators and power units
- Marine and industrial engines
Requirements and installation
- Operating system: Windows 10 (64-bit) minimum; Windows 11 (64-bit) recommended
- Processor and memory: Intel Core i5 or equivalent and 8 GB RAM minimum; Intel Core i5 or better and 16 GB RAM recommended for improved performance
- Storage: 50 GB free or more
- Adapter: CAT-compatible diagnostic adapter, such as CAT Comm Adapter III or equivalent
- Internet: Required for the remote installation appointment
- License: Lifetime license applied as a one-time installation to one PC during a remote session
Turn off antivirus before installation; some programs may flag activation files as false positives. Have the required CAT-compatible adapter available for the remote installation.









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