Welcome to the Detroit Diesel Diagnostic Link Update Website.  This site was created to provide immediate updates to our customers and service organization with the latest DDDL Troubleshooting Information, software updates, frequently asked questions and more. Updates will be ongoing so we encourage you to check this website on a regular basis. If you need further assistance with any of this information, please call our Customer Support Center at 313-592-5800.   Current computer specifications for Diagnostic Link and Reprogramming Applications Component Recommended Intel® Core™ 2 Duo, AMD Athlon™ 64X2, or equivalent 2.0+ GHz Dual-Core processor 2 GB RAM or more 100 GB hard drive with 20 GB free space DVD ROM drive Monitor and graphics card supporting 1280 x 1024 resolution and 32-bit color Parallel port, three free USB ports High Speed Internet – Broadband Internet