Did you review the Automatic Level Control System Description and Operation and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Automatic Level Control

Verify ALC system operation.

Does the ALC system operate normally?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

Turn ON the ignition, with the engine OFF.

Does the compressor motor run for 3-5 seconds approximately every minute?

Go to Step 4

Go to Symptoms - Automatic Level Control

Replace the ALC air compressor relay.

Did you complete the replacement?

Go to Step 5

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3