How do you clear fault codes on a 2004 International 4300?

To clear fault codes on a 2004 International 4300, you can use a diagnostic scanner compatible with the vehicle's engine control module (ECM). Connect the scanner to the vehicle's diagnostic port, turn on the ignition without starting the engine, and follow the scanner's prompts to access fault codes. Once you've noted or addressed any issues, use the scanner's option to clear or erase the fault codes. Alternatively, disconnecting the battery for a few minutes may also reset the codes, but this method may not clear all stored data.