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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.
The following are information links that will help you better understand the Diagnostic Link Tool. If you need further assistance with any of this information, please call our Customer Support Center at 313-592-5800.
Related Technical Service and Customer SupportLetters
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