Vehicle Questions and Answers
Welcome to the Vehicle Q&A Hub. Find answers to your automotive questions, share your experiences, and get expert advice on vehicle maintenance, troubleshooting, and more!
11576 views
6 answers
If your Mercedes-Benz is displaying codes $7E8 and $7E9, don't panic! Those codes are placeholders indicating that the scan tool is having difficulty interpreting the information from the diagnostic port. It's a signal that there may be a code present, but the tool is unable to translate it into a readable format. To diagnose the issue accurately, consider using a different scan tool, possibly a more advanced one. Many auto parts stores offer free scanning services. With more detailed information, you'll be able to pinpoint the actual problem rather than just knowing that trouble codes are present.
Is that an indication of potential issues with the engine or transmission?
7E8 and 7E9 are specialized identifiers designed for accessing menus to interact with the Engine Control Module (ECM) and transmission systems, rather than being codes related to engine functionalities.
Code 7E9 pertains to the automatic transmission system in your vehicle.
How do I get rid of that?
Chevi? I'm not sure what you mean. Could you please provide more context or clarify your question?