Diagnostic Starting Point - Data Communications

Diagnostic Starting Point - Data Communications

Begin the system diagnosis with Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview). The Diagnostic System Check - Vehicle will provide the following information:

* The identification of the control modules which are not communicating
* The identification of any stored diagnostic trouble codes (DTCs) and their status

The use of the Diagnostic System Check - Vehicle will identify the correct procedures to begin vehicle diagnosis. These must be performed before system DTC or symptom diagnosis.