Initial Inspection and Diagnostic Overview

Diagnostic Starting Point - Cruise Control

Begin the cruise control system diagnosis with the Diagnostic System Check - Vehicle. Refer to the Diagnostic System Check - Vehicle in Vehicle DTC Information. Initial Inspection and Diagnostic Overview

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.

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