Diagnostic Starting Point - Instrument Panel, Gages and Console

Begin the system diagnosis with the Diagnostic System Check - Vehicle . The Diagnostic System Check-Vehicle will provide the following information:

• The identification of the control module(s) which command the system.
• The ability of the control module(s) to communicate through the serial data circuit.
• The identification of any stored diagnostic trouble codes (DTCs) and their status.

The use of the Diagnostic System Check-Vehicle will identify the correct procedure for diagnosing the system and where the procedure is located.