Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Suspension Controls Schematics | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
2 | Did you review the Diagnostic Trouble Code Displaying first? | Go to Step 3 | |
3 |
Important: The vehicle must be on a drive on hoist.
Does the test lamp illuminate? | Go to Step 4 | Go to Step 7 |
4 | Connect a test lamp between the ground circuit of the air suspension compressor assembly harness and a battery positive voltage circuit. Does the test lamp illuminate? | Go to Step 5 | Go to Step 8 |
5 | Disconnect both air spring supply tubes at the air suspension compressor assembly. Did the vehicle lower? | Go to Step 6 | Go to Step 9 |
6 | Replace the air suspension compressor assembly. Refer to Automatic Level Control Air Compressor Replacement . Did you complete the replacement? | Go to Step 11 | -- |
7 | Repair open circuit on the air suspension compressor assembly battery positive circuit. Did you complete the repair? | Go to Step 11 | -- |
8 | Repair open circuit on the air suspension compressor assembly ground circuit. Did you complete the repair? | Go to Step 11 | -- |
9 | Carefully inspect air tube assemble for damage. Was any damage found? | Go to Step 10 | -- |
10 | Repair or replace any damaged components. Is the repair complete? | Go to Step 11 | -- |
11 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 1 |
