Self-Diagnostic System: Notes

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2001 GMC Savana Special, 2001 GMC Savana Camper Special, 2001 GMC Savana, 2001 GMC Safari, and 2001 Chevrolet RV Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Diagnostic trouble code tests are written specifically for use with GM Tech I or Tech II scan tools. Generic scan tool can be used but may have limited functions. This article only covers the portion of those systems which relates to starting system diagnosis. For further information, see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE or appropriate BODY CONTROL MODULES article in ACCESSORIES & EQUIPMENT.