2 seperate systems use the compressor. ELC is electronic level control. Load the car up or hitch up your utility trailer. It'll raise the rear of the car by inflating the rear air shocks.
The utility compressor uses PART of that system. Hook up an air hose and press ON. It gives about 70psi, but not alot of volume. You can inflate your tires, but it takes a few minutes. It'* best to partially inflate, let the compressor cool, then finish.
It'* mainly designed for pool toys, balls, and things like that. Don't forget to press OFF when done. You don't need the accessory power on to use it.