Cruise Control: Operation

• The cruise control system automatically controls the vehicle speed. It allows the vehicle to run at a constant speed without need for the driver to keep the accelerator pedal depressed.
• The cruise control system is controlled by the engine control module (ECM).
• When the driver has activated the system and made a desired speed setting, the engine control module (ECM) compares the actual vehicle speed detected by the speed sensor with the preset speed in the engine control module (ECM) memory, and then generates a signal according to the difference between the two speeds.

This signal is transmitted to the electronic control throttle.

The electronic control throttle operates the throttle valve as necessary to keep the preset vehicle speed.