The system a cruise control provides support of speed of the car which is carried out by means of the electric motor connected with an accelerator cable.
The system consists of the electric motor, the control unit, the switch on a pedal of a brake, control switches and the sensor of frequency of rotation.
Due to the features of system for its check special test devices and diagnostic checks are required.
Only the general checks which will help to define location of malfunction are given below:
Check integrity of safety locks.
Press a pedal of a brake and check that at the same time stoplights as the switch of a stoplight deactivates system a cruise control light up.
If stoplights do not light up or burn constantly, then check the switch and a control system a cruise control.
Fig. 15.60. Arrangement of a cable of management of a butterfly valve of system cruise control
Visually examine the cable of management connecting the electric motor and the sector of a butterfly valve on lack of jammings
. If necessary replace a cable.
If the system a control cruise still does not work properly, address on service station.