Caterpillar Electronic Technician (Cat ET) — for diagnosing, tuning, and servicing Caterpillar equipment and engines.

Features:
Reading and clearing fault codes.
Viewing real-time sensor readings.
Performing tests (e.g., cylinder deactivation) and calibrations.
Configuring and flashing electronic control modules (ECMs).

Compatible diagnostic tools:
CAT Comm Adapter 3/4 (CA3/4)
Scanmatic PRO
Nexiq USB-Link 2/3
Dearborn DPA 5
Cummins INLINE 6/7


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What's New in CAT ET 2026A:

New report format: Due to browser security restrictions, the program now automatically converts old XML reports into HTML files for viewing.
OS optimization: Stability and performance have been improved on Windows 10 and 11 (64-bit).
Latest drivers: Support for diagnostic adapters (CAT Comm Adapter 3) has been updated.
Cumulative updates: All minor interface improvements from previous versions have been included.