Cruise Control Activation

Cruise Control Activation
Cruise control is a passive system. The driver must activate it. Switching on the cruise control master switch located on the instrument panel activates cruise control. An LED in the switch illuminates, indicating cruise control is available. The driver must accelerate the vehicle to the desired speed using the accelerator pedal. When the desired speed is reached, pressing the SET+ switch activates cruise control. Cruise control will only activate if the following conditions are met:
- Vehicle speed is between 28 - 125 mph (45 - 200 km/h).
- The brake pedal is not pressed.
- The clutch pedal is not pressed (manual gearbox only).
- The gearbox is not in park, reverse or neutral (automatic gearbox only).

Function
The cruise control ECU receives the set signal and determines the vehicle speed provided by the SLABS ECU. The cruise control ECU activates the vacuum pump assembly to move the pneumatic actuator and the linkage to the throttle disc to maintain set road speed. It does this by controlling the vacuum to the pneumatic actuator.