Accelerate the vehicle without a load (only the driver in the cabin) in 1st gear to a speed of approximately 15 km/h. Press the brake pedal sharply and do not release it until the vehicle comes to a complete stop.
If the car skids when braking, get out of the car and examine the marks left by the wheels. The brake mark of a working wheel with an anti-lock system is very small and almost invisible, since the wheel does not slip, but rolls on the verge of breaking into a skid.
If any wheel clearly shows a visible brake trace of its locking, contact a car service: the anti-lock system is faulty.
If the brake marks of all wheels are visible but not very noticeable (there are no clear marks left by the sliding tire) and the length of all marks on the left and right is the same, the brake system is in good condition. Otherwise, repair the system.
Fig. 4.4. Checking the efficiency of the braking system
Note: The following relationships must be observed (Fig. 4.4): L left front = L right front = L left rear = L right rear.
(The original source of the publication is on the website Fordbook.ru)