Diagnostic Starting Point - Engine Electrical
WARNING: This page is about a different car, the 2002 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
Begin the system diagnosis with the DIAGNOSTIC SYSTEM CHECK - ENGINE ELECTRICAL in SELF-DIAGNOSTIC SYSTEM. The Diagnostic System Check will provide the following information:
- The identification of the control modules which command the system.
- The ability of the control modules to communicate through the serial data circuit.
- The identification of any stored diagnostic trouble codes (DTCs) and their status.