Cruise Control: Description and Operation

The speed control system is composed of On-Off, Set-Accelerate, Coast, Resume (if equipped) switches. The system includes vacuum hoses, servo (throttle actuator) assembly, speed sensor, check valve assembly, and depending on model, a clutch switch and stop light switch.

Nissan refers to the system as the Automatic Speed Control Device (ASCD).

To operate speed control system, the engine must be running and vehicle speed must exceed 30 mph. When the On-Off switch is actuated, the system is ready to accept a set speed signal. When vehicle speed stabilizes (exceeds 30 mph), and the On switch is engaged, the operator may depress or release the Set-Accelerate button. This speed will be maintained until a new speed has been set, brake pedal has been depressed, or the system is turned off.