Initial Inspection and Diagnostic Overview
Diagnostic Starting Point - Engine ElectricalBegin the system diagnosis with [Diagnostic System Check - Vehicle Diagnostic Information]. The Diagnostic System Check Vehicle 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
The use of the Diagnostic System Check Vehicle will identify the correct procedure for diagnosing the system and where the procedure is located.