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Diagnostic Strategies - Automatic Level Control (ALC)

Symptoms - Automatic Level Control
Review the system operation in order to familiarize yourself with the system functions.

Visual/Physical Inspection
^ Inspect for aftermarket devices, which could affect the operation of the automatic level control suspension.
^ Inspect the easily accessible or visible system components for obvious damage or conditions, which could cause the symptom.
^ Inspect for binding or damaged shock absorbers.

Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions.

Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
^ Automatic Level Control Air Compressor Performance Test
^ Automatic Level Control System Leak Test
^ Rear of Vehicle High (w/o F45) or Rear of Vehicle High (w/F45)
^ Rear of Vehicle Low (w/o F45) or Rear of Vehicle Low (w/F45)