Pic. 13.58. Location of the main elements of the system for maintaining a constant speed (Cruise control): a - models with a block of switches; b - models without a block of switches; 1 - switch; 2 - switch on the brake pedal; 3 - safety switch (auto); 4 - throttle actuator; 5 - switch on the clutch pedal; 6 - control unit; 7 - main switch
The system maintains a constant vehicle speed regardless of road inclination and other factors, without the driver having to press the accelerator pedal. The main elements of the system are shown in fig. 13.58.
Pic. 13.59. Checking the free play of the control cable for the drive of the system for maintaining a constant speed of movement
If a problem is found in the system, check the appropriate fuse, actuator vacuum hose connection and condition, and actuator control cable adjustment. The free play of the drive control cable in the off position should be 10–30 mm (pic. 13.59).
On vehicles with a manual transmission, the clutch pedal switch disables cruise control when the clutch pedal is depressed. If you need to replace the switch, do not forget that the clutch pedal height depends on it. Turn the switch so that the clutch and brake pedals are at the same level, then fix it with a lock nut.
Any other malfunction in the cruise control system should be repaired by a workshop.