Sir Diagnostic System Check: Notes
WARNING: This page is about a different car, the 2001 Oldsmobile Bravada, 2001 GMC Sonoma, 2001 GMC Jimmy, 2001 Chevrolet S10 Pickup, and 2001 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
To avoid air bag deployment and injury when trouble shooting system, only use test equipment specified in diagnostic tests. Carefully follow all instructions.