System for controlling a fluid suspension

An air suspension control system for a vehicle comprising:

• a manifold adapted to be connected to a lift mechanism, the manifold having a supply flowpath and an exhaust flowpath;
• a circuit board connected to the manifold for controlling the manifold to selectively open the supply flowpath and the exhaust flowpath, the circuit board being operatively connectable to a brake light system of the vehicle;
• a kneel switch connected to the circuit board, the kneel switch being one of activated and deactivated;
• and
• wherein the circuit board is programmed to open the supply flowpath in response to a non-kneel condition in which the kneel switch is deactivated and the brake light system is activated.

A method for controlling the height of a vehicle comprising:

• determining whether a kneel switch in the vehicle is activated;
• exhausting air from a lift mechanism in the vehicle if the kneel switch is activated;
• determining whether the kneel switch is deactivated and whether a brake pedal in the vehicle is depressed;
• supplying air to the lift mechanism upon both:
• (a) deactivation of the kneel switch and (b) depression of the brake pedal.