Circuit Operation

The Cruise Control Module and the Actuator are the two main components that allow the system to control and maintain the desired vehicle speed. The Cruise Control Module monitors vehicle speed through the Vehicle Speed Sensor and provides the Cruise Control Actuator with the necessary commands to maintain or change vehicle speed in response to inputs from the Cruise Control Mode Switch.

A DC servo motor is located inside the actuator which turns a worm gear, in turn this moves the accelerator cable to adjust throttle angle. The DC servo motor and the worm gear are mechanically connected only when the magnetic clutch is energized by the Cruise Control Module.

Cruise control operation is disengaged when the Cruise Control Module receives a cancel signal from the Stoplamp Switch, the Cruise Control On/Off switch, the Cruise Control Mode Switch, the Transmission Range Switch (Automatic Transmission), or the Clutch Pedal Position (CPP) Interrupt Switch (Manual Transmission). When a cancel signal is received, the Cruise Control Module will de-energize the magnetic clutch inside the Cruise Control Actuator, this will disconnect the DC servo motor from the worm gear and allow the throttle to return to its idle position.