Air Compressor: Self-Test

Verify that the following conditions are met before running the On-Demand Self-Test.

• All doors, liftgate, and liftgate glass must be closed.
• The transmission is in PARK.
• The vehicle speed is less than 3 km/h (1.87 mph).
• The ignition switch is in the ON position.
• The vehicle is not in 4L mode.

1. Fulfill the pre-conditions.
2. Install a battery charger for the On-Demand Self-Test to prevent battery drain.
3. Run the air suspension On-Demand Self-Test.
4. Record all listed DTCs.
5. Retrieve stored DTCs.
6. Troubleshoot any On-Demand Self-Test DTCs first.
7. Repeat the ON-Demand Self-Test and clear DTCs after repairs are completed.