DESCRIPTION & OPERATION
Note. The cruise control may also be referred to as speed control in this article.
Major components of the cruise control system are speed control switches, speed control servo, control cable, vehicle speed sensor, horn relay, Clutch Pedal Position (CPP) switch, deactivator switch, Powertrain Control Module (PCM), Transmission Range (TR) sensor and related wiring. This system does not require engine vacuum. An electronic servo/actuator actuates throttle. All electronic control components are contained within the speed control servo/actuator.
The system is operational only at speeds greater than 30 MPH. The system is activated when ON/OFF switch is switched on and SET/ACCEL button is pressed and released. Vehicle will maintain set speed until new speed is set, brake pedal is depressed, or ON/OFF switch is switched off. If system has been deactivated by depressing brake pedal, set speed can be regained by pressing and releasing RESUME button. When brake pedal is depressed, a signal from switch is sent to servo to deactivate the system. A deactivator switch acts as a redundant brake signal.
See also:
• STEERING COLUMN SWITCHES