Initial Inspection and Diagnostic Overview

1. Verify the customer concern by attempting to duplicate the condition.





2. Visually inspect for obvious signs of mechanical and electrical damage.
3. If the inspection reveals obvious concerns that can be readily identified, repair as required.
4. If the concern(s) remain after the inspection, run the auto test; go to Pinpoint Test C.
5. If no Diagnostic Trouble Codes (DTCs) are retrieved, go to Symptom Chart. Symptom Related Diagnostic Procedures
6. If there is no communication with the air suspension control module, go to Pinpoint Test A.