Initial Inspection and Diagnostic Overview

Diagnostic Starting Point - Cruise Control

Begin the system diagnosis with the Diagnostic System Check - Vehicle. The Diagnostic System Check 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 Diagnostic System Check - Vehicle

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