Air Compressor Head Relief Sequence

In order to reduce current draw during air compressor starting, the Continuously Variable Road Sensing Suspension (CVRSS) control module performs an air compressor head relief sequence before air compressor operation. This sequence reduces the air pressure in the air compressor cylinder during start-up. The air compressor head relief sequence occurs as follows:
1. Exhaust solenoid is energized.
2. Air compressor is activated 1.3 seconds after the exhaust solenoid is energized.
3. Exhaust solenoid is de-energized 0.5 seconds after the air compressor is activated.