Detroit Diesel DiagnosticLink Professional Software

Detroit Diesel Professional Diagnostic Software

Detroit Diesel Professional is a computer-based diagnostic software for Detroit™ powertrain, Freightliner™ Cascadia™  & Western Star 5799XE vehicle systems. It can display ECU information, diagnostic fault codes, troubleshooting information, instrumentation and run service routines*.

*Certain features are available for authorized users only
**Each reprogramming event requires the purchase of an event file

Engines Supported:
  • EPA07 – DD15, DD13, DD16, Series 60, MBE900, MBE4000
  • EPA10 – DD15, DD13, DD16
  • GHG14 – DD13, DD15, DD16, DT12 Transmission
  • Freightliner Cascadia Body Module (using USBLink2 interface)
  • Western Star 5700XE Body Module (using USBLink2 interface)
  • Software
  • Activation Code
  • Installation & Activation (We will remotely install & activate your software at no additional cost)
Note: Computer must be connected to the internet during activation
Note: Requires annual renewal.
  • Diagnostics
  • Fault Codes
  • Cylinder Cutout
  • Diagnostic Instrumentation
  • Normal Instrumentation
  • Engine Configuration Data
  • ECM I/O
  • Injector Response Time
  • Maintenance Alert
  • View Observed MIDs
  • Exhaust Back Pressure Fault Times
  • View information about connected ECUs
  • Perform traditional and advanced troubleshooting
  • Read variable values in real time and display them graphically
  • Configure and manage parameters
  • Perform service routines
  • Play back logs of all connected activity
  • Install injector codes
  • Program modules
  • Governor RPM Settings
  • Engine & Trip Data
  • DDEC Reports
  • Clear AFR Learn Table
  • Particulate Filter Reset
  • Recalibrate NG Oxygen Sensor
  • Recalibrate EGR Delta Pressure Sensor
  • Calibration Passwords
  • Injector Calibration
  • Engine Configuration Data
Important Note:

Neither the standard or pro version of DiagnosticLink allows you to flash the MCM, CPC, ACM (engine) and TCM (transmission). Only your Detroit dealer will have the ability to do that.

DDDL & Newer System Requirements:

  • IT Security Firewall Access for TCP Port 48481 and server name ‘’
  • Windows 10 Pro
  • SSO (Single Sign On) ID and password required for order system access, tool registration, and tool server connection (calibration downloads, service pack updates e.g.)
  • 2.0 GHzDual-Core processor or greater
  • 2 GB RAM or more
  • 40 GB hard drive with 20 GB free space
  • Monitor and graphics card supporting 1024 x 768 resolution
  • 1 free USB port
  • High Speed Internet – Broadband Internet
  • Nexiq USB-Link2 with USB cable (required for Cascadia diagnostics)
  • Administrative Rights (for installation only)

About Us

Diesel Diagnostic Equipment was founded in 1999 on the principal of providing quality diagnostic equipment to the professional medium & heavy-duty truck technicians. 


All product and company names/logos are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.