WITH no low-range gearing, Freelander relies on electronic systems to help provide it with a limited amount of off-road ability. Hill Descent Control is designed to reduce speed down to a "walk" when tackling steep descents. A supplement to engine braking, HDC uses the anti-lock braking system and applies brake pressure to all four wheels to restrict speed on steep descents. Freelander also uses electronic traction control (ETC) that applies braking force to a spinning wheel and hence increases torque to the gripping wheel. ETC senses a loss of traction via the anti-lock braking wheel speed sensor and applies brake force the spinning wheel, increasing the torque available to the gripping wheel to help keep the vehicle moving. A multiplex system is also used to control systems for the engine, automatic transmission and anti-lock brakes, among others.