Initial Inspection and Diagnostic Overview

Diagnostic Starting Point - Air Suspension
Begin the system diagnosis with the Diagnostic System Check - Vehicle Information. The Diagnostic System Check will provide the following information: Diagnostic System Check - Vehicle
^ The identification of the control module(s) which command the system.
^ 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. Diagnostic System Check - Vehicle