Diagnostic Starting Point - Automatic Level Control

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

Begin the system diagnosis with the Diagnostic System Check - Automatic Level Control (With Inflator) . The Diagnostic System Check will provide the following information:

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.