PACCAR ESA (Electronic Service Analyst) is the official diagnostic and programming software used on Kenworth and Peterbilt trucks equipped with PACCAR engines. If your shop services MX-11, MX-13, or PX series engines, ESA is
If your shop works on PACCAR MX-11 or MX-13 engines, then DAVIE4 is the OEM software you’ll rely on for diagnostics, monitoring, tests, and ECU programming. DAVIE4 replaced earlier DAVIE versions and brings