Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hello and welcome! My name is ***** ***** I can assist you with your question. The most common cause of this problem is a bad body control module or a bad diagnostic sensing module.
Another common cause would be a bad electronic brake control module.
I would disconnect one module at a time until you get communication with your scanner.
Once communication starts, you know the last module you disconnected is bad pulling the rest off line.
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