Principles of Operation (How Does It Work?)

The speed control actuator is electronically controlled by the speed control actuator module and uses a speed control actuator to position the speed control cable. In turn, the position of the speed control cable controls the engine speed.

The speed control system is designed to maintain vehicle speed above 48 km/h (30 mph). After the ON switch is depressed, depressing the COAST/SET switch will activate the speed control actuator servo. To increase a set speed, depress the RES/ACCEL switch and hold for continuous acceleration. To decrease a set speed, depress and hold the COAST/SET switch until the target speed is reached. When the speed control system has been disabled by tapping the brake pedal, the RES/ACCEL switch can be depressed and the vehicle will return to the original set speed if the vehicle is traveling over 48 km/h (30 mph) and the OFF or CANCEL switch has not been depressed or the transmission selector has not been placed in NEUTRAL or PARK.

Deactivator Switch
The deactivator switch is provided as an additional safety feature. Normally, when the brake pedal is depressed, an electrical signal from the stop lamp circuit to the speed control module will deactivate the system. Under brake pedal application, the deactivator switch will open and remove power to the speed control module, releasing the throttle independently of the speed control actuator.

Steering Wheel Clockspring
The steering wheel clockspring provides the electrical interface between the steering column wiring and the speed control switch in the steering wheel.