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• Paccar Electronic Service Analyst (ESA) 220.127.116.11 
Electronic Service Analyst is a diagnostic tool what communicates over a Data Link Adapter to the NAMUX components. Can connect to Kenworth, Peterbilt and other trucks with Paccar engines.
• Detect fault codes in the components.
• Verify and troubleshoot new electronic instrumentation functionality.
• Flash the control unit.
• Program parameters and diagnose the root cause of the problems.