Authorized technicians obtain these passwords by submitting the machine’s serial number and ECM data to Caterpillar’s secure Feature Protection System (FPS) .

If you meant something else, I can help with lawful alternatives — for example:

While standard diagnostic tasks are accessible with a dealer or customer ET license, "Factory Password Keygens" (also known as FPGEN tools) are typically third-party utilities used to bypass the need for an official Caterpillar dealer request for these sensitive codes. Key Components of CAT Factory Password Utilities

: Many online sellers offering 18-digit keygens have been reported as fraudulent, providing codes that do not work once payment is made. Legitimate Ways to Obtain Passwords