Important: The following steps must be completed before using the symptom tables.
- Determine whether the vehicle is equipped with an electrically
assisted or active suspension system. Perform electrical diagnosis prior to
    beginning mechanical diagnosis. Refer to 
Diagnostic Starting Point - Air Suspension 
 in Air Suspension.
 
- Review the system description and operation in order to familiarize
yourself with the system functions. Refer to the appropriate description and
    operation:
 
Visual/Physical Inspection
|     •  | Inspect for aftermarket devices which could affect the operation
of any of the Suspension subsystems.  | 
 
|     •  | Inspect the easily accessible or visible system components for
obvious damage or conditions which could cause the symptom. | 
 
Symptom List
Refer to a symptom diagnostic procedure from the following list in order
to diagnose the symptom: