Self-Diagnostic System: Notes
WARNING: This page is about a different car, the 2002 GMC Savana, 2002 Chevrolet Chevy Express, 2001 GMC Savana, and 2001 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
System tests are written specifically for General Motor's Tech 2 scan tool. A generic scan tool may not be capable of performing all necessary test functions.