Description & Operation

The cruise control system consists of the following basic components: operator controls, servo assembly (throttle actuator), Vehicle Speed Sensor (VSS), clutch switch (manual transmission), stoplight switch, vacuum dump valve, check valve, amplifier, neutral safety switch and related wires and vacuum hoses. Because of the low vacuum produced by the turbo engine, an electrical motor-driven servo is used to actuate the throttle. Control unit is located under driver side of instrument panel on steering column.

The cruise control is only operational at speeds above 30 MPH. The system is activated when ON/OFF switch is switched on and SET/ACCEL button is pressed for 2 seconds and released. Vehicle will maintain set speed until new speed is set, brake or clutch pedal is pressed, or ON/OFF switch is pressed off. If system has been deactivated by pressing brake or clutch pedal, set speed can be regained by pressing and releasing RESUME button.

When brake or clutch pedal is pressed, a signal from either switch is sent to the amplifier, deactivating system through a vent valve. Deactivation also occurs when brake pedal is pressed, releasing vacuum through a mechanical dump valve.