Diagnostic Starting Point - Engine Controls

Diagnostic Starting Point - Computers and Control Systems

Begin the system diagnosis with Diagnostic System Check - Vehicle. 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 DTCs and the codes status Initial Inspection and Diagnostic Overview

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