We’re back with another extremely useful tip from GM Master Technician James from Florida, this time related to diagnosing GM MOST Bus issues. In this particular case, he had a 2015 Silverado with an inactive display. Using his knowledge of this system’s operating principles and the available scan data, he quickly identified the source of the problem and resolved it efficiently. If you have ever wrestled with these systems, you’ll want to read this one:
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Photo attributed to Jörg Grüntjes. https://www.flickr.com/photos/131768224@N03/