Step  | Action  | Yes  | No  | 
|---|---|---|---|
Schematic Reference: Automatic Level Control Schematics  | |||
1  | Did you perform the Automatic Level Control Diagnostic System Check?  | Go to Step 2  | |
2  | Is the rear of the vehicle too high?  | Go to Step 3  | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems  | 
3  | Disconnect the air tube from the compressor. Does the rear of the vehicle drop?  | Go to Step 4  | Go to Step 6  | 
4  | Disconnect the compressor motor relay. Does the compressor motor continue to run?  | Go to Step 5  | Go to Step 7  | 
5  | Test the battery positive voltage circuit of the compressor motor for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?  | Go to Step 8  | --  | 
6  | Inspect all air tubes for kinked, bent and blockage. Check the exhaust valve for blockage. Did you find and correct the condition?  | Go to Step 8  | --  | 
7  | Replace the compressor motor relay. Did you complete the replacement?  | Go to Step 8  | --  | 
8  | Operate the system in order to verify the repair. Did you correct the condition?  | System OK  | Go to Step 3  |