Pneumatic Test

WARNING: This page is about a different variant/trim than selected.

This test verifies that the air lines are connected and that they are not restricted. It also verifies that the air compressor, air compressor vent solenoid and air spring solenoid valves are functioning properly. Verify that the following conditions are met before running the Pneumatic Test.

All doors, liftgate, and liftgate glass must be closed.
Vehicle in PARK.
The vehicle speed is less the 3 km/h (1.87 mph).
The air suspension service switch must be in the ON position.
Test is used to clear DTCs C1990 and C1991.