gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Initial Inspection and Diagnostic Overview|Page 14505 > < Vehicle Interface Unit (VIU) Circuit|Page 14502
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Cellular Phone: Initial Inspection and Diagnostic Overview

Begin the diagnosis of the system by performing the Diagnostic System Check for the system in which the customer concern is apparent. The Diagnostic
System Check will direct you to the correct procedure for diagnosing the system and where the procedure is located.

Initial Inspection and Diagnostic Overview|Page 14505 > < Vehicle Interface Unit (VIU) Circuit|Page 14502