Initial Inspection and Diagnostic Overview

Diagnostic Starting Point - Air Suspension

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

* The identification of the control modules which command the system. Refer to Air Suspension Description and Operation (Description and Operation).
* The identification of any stored diagnostic trouble codes (DTCs) and their status. Refer to Diagnostic Trouble Code (DTC) Displaying (Trouble Code (DTC) Displaying).

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