The Snap-on TPMS4 Diagnostic Tool is designed to test and diagnose tire pressure monitoring sensors to determine whether replacement is needed. This tool offers the software to program aftermarket sensors and displays PSI, temperature, and battery status on its full-color VGA screen. The tool provides vehicle-specific reset procedures following tire rotations and sensor replacements, and improved functionality for a more streamlined user interface and menu structure. The TPMS4 is designed to complement existing Snap-on diagnostic platforms such as Zeus, Verus, Verdict, Modis, and Solus.