Member Services

Electronics Diagnostic / Service Software  

DiagnosticLink 8

Detroit is proud to announce the new version DiagnosticLink 8 software package. DiagnosticLink  supports DDEC 6 through GHG17 engine platforms. There are two editions of DiagnosticLink. The standard edition replaces DDDL 7.x. The professional edition replaces DDRS 7.x. DiagnosticLink is now subscription based only (i.e. download only) from the DiagnosticLink ordering site. You may purchase a 1 year subscription of DiagnosticLink from the ordering site which includes service packs updates within the subscription period.

Please Note: Both DiagnosticLink Standard and Professional requires an SSO (Single Sign-On) ID and password for tool registration and server connection for service pack updates and required server connection. You may request for an SSO ID from the ordering system if needed. Legacy tool DRS 6.x requires a DRS Application ID and password for server downloads (for authoriized users).

DiagnosticLink 8 Standard 

Diagnosticlink Standard provides ECU information, diagnostic fault codes, instrumentation information, service routines, the ability to run system tests, and edit ECU parameters. Upon installation and registration of the DiagnosticLink Standard package installer, the legacy tool Detroit Diesel Diagnostic Link (DDDL 6.x) will be installed and accessible from Start menu programs.

DiagnosticLink 8 Professional

DiagnosticLink Professional provides ECU information, diagnostic fault codes, instrumentation information, service routines, the ability to run system tests, edit ECU parameters, and the ability to reprogram engine controllers. Upon installation of the professional edition package installer, the legacy tools DDDL 6.x and DRS 6.x (for authorized users) are accessible from Start menu programs.

Single Sign On (SSO)

An SSO ID and password are required to access the order system, register DiagnosticLink, and access the server to keep the applicaiton active and download updates. You may request for an SSO ID by contacting your security administrator. If you do not have a security administrator, you may request for an SSO ID by visiting https://diagnosticlink.nexiq.comClick 'Register' and follow instructions for the appropriate organization type. 

Detroit Diesel Diagnostic Link (DDDL 6.x)

DDDL 6.x is a comprehensive software program supporting DDEC III, IV, and V, and all software versions of the MBE 900 and MBE 4000 On-Highway engines. DDDL 6.x software offer features and coverage for DDEC V, Release 2, DDEC IV Release 42 and VCU Release 14.26; New data included in the Trip Monthly and Life to Date Reports; Updated VCU/PLD instrumentation to speed up data rates; and Integrated MBE troubleshooting guide to enhance diagnostic efficiency.

Nexiq USB-Link 

The Nexiq USB Link and Nexiq USB-Link 2 translator boxes are compatible with all Detroit service tools. The Nexiq USB Link 2 hardware and Detroit's DiagnosticLink software can be purchased from the DiagnosticLink Ordering System.

  The USB Link 2 Kit (p/n 124032) includes:

  • USB-Data-Module
  • 15 ft.USB data cable
  • 6/9-PIN Y data cable
  • Quick start card
  • User’s Manual
  • Hard-side carrying case

Ordering Site

The DiagnosticLink Ordering System can be accessed at: using your SSO (Single Sign-On) or Access Freightliner ID and password. 


Copyright © Detroit Diesel Corporation.  All Rights Reserved.