Service Diagnostics & Tools

Service Diagnostics & Tools is your single point of reference for diagnostic tools, parts, and applications.



DiagnosticLink help service technicians diagnose and service Freightliner products and Detroit engines.


DDDL (Detroit Diesel Diagnostic Link) is the diagnostic tool supporting Detroit legacy engines.

DDEC Reports

DDEC Reports is the fleet management application supporting Detroit ECU, VCU, and CPC data extractions.