Valve Block Fault

The control of each air spring is monitored to determine that every valve is working correctly.

1. If the ECU detects an air valve stuck open, it will attempt to adjust the vehicle to standard height or a safe lowered position (which could be system deflated). The system will be inhibited from further ride height changes.
2. If an air valve is stuck closed above standard height, the ECU will deflate the other 3 air springs.
3. If an air valve is stuck closed, at or below standard height, the ECU will attempt to adjust the other springs to the same height and activate inhibit.