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GM MOST Bus Diagnosis


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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About iATN
The International Automotive Technicians Network is the largest network of automotive repair professionals in the world: a group of 80,000+ automotive professionals from over 160 countries. The members of this group exchange technical knowledge with their peers around the globe, sharing 1.8 million years of experience. iATN has been proudly serving the automotive service and repair industry and the needs of professional automotive mechanics around the world, for over 15 years.

Photo attributed to Jörg Grüntjes.

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