Diagnostic Starting Point - Engine Electrical

Begin the system diagnosis with the Diagnostic System Check - Engine Electrical. See DIAGNOSTIC SYSTEM CHECK - ENGINE ELECTRICAL . The Diagnostic System Check 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 - ENGINE ELECTRICAL  will identify the correct procedure for diagnosing the system and where the procedure is located.