Symptoms - Data Link Communications: Notes
WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
The Diagnostic System Check for the system that is malfunctioning must be performed before attempting to use the symptom diagnostics. Refer to Control Module References
in Body Control System for the appropriate Diagnostic System Check.
Review the system operation in order to familiarize yourself with the system functions.
Refer to Data Link Communications Description and Operation .