Stop Lamp Switch
WARNING: This page is about a different car, the 2004 Ford Focus. However, it is still accessible from the selected car via links, so may be relevant.
If the brake pedal is tapped lightly while the speed control system is active, the actuator receives an input from the stoplamp switch. This causes the speed control actuator to close the throttle at a controlled rate. The system is put in stand-by mode.