Test Description
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
The numbers below refer to the step numbers on the diagnostic table.
- 1: The presence of DTCs
- 4: The symptom list in Symptoms will determine the correct diagnostic procedure to use.
Diagnostic System Check - Automatic Level Control (With Inflator)
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Automatic Level Control Suspension Schematics | |||
| 1 | Turn ON the ignition, with the engine OFF. Press the accessory inflator switch for 3 seconds to enter diagnostic mode. After 200 seconds does the LED flash code 12? |
Go to Step 2 | Go to Step 4 |
| 2 | Press and release the accessory inflator switch. Does the LED in the Switch stop flashing? |
Go to Step 3 | - |
| 3 | Cycle the ignition switch from ON to OFF. Did you complete the procedure? |
System OK | - |
| 4 | Does the LED in the accessory inflator switch flash other codes? | Go to Diagnostic Trouble Code (DTC) List | Go to Symptoms - Automatic Level Control |