Air Compressor Head Relief Sequence

In order to reduce current draw during air compressor starting, the position sensor 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. The exhaust solenoid is energized by the position sensor.
2. The air compressor is activated 1.3 seconds after the exhaust solenoid is energized.
3. The exhaust solenoid is de-energized 0.5 seconds after the air compressor is activated.