Preliminary Operations
1. Inspect easily accessible components for obvious damage and/or leaks, which may indicate that the vehicle should not be driven until necessary repairs have been completed.
2. Adjust the brake fluid level in the master cylinder reservoir.
3. Adjust tire pressure.
4. Inspect the tire tread patterns, the wear pattern should be the same (or almost the same), especially on the wheels of one axle.
5. Check up uniformity of loading of the car.
Verification procedure
Warning: check on the road in compliance with the rules of the road. Do not make any maneuvers that could cause you to lose control of your vehicle. Failure to follow this warning could result in serious injury or damage to the vehicle.
1. Run the engine to idle.
2. Check to see if the brake fault indicator light is on.
3. If the light is on, diagnose the system and repair as needed.
4. Choose a level road without noticeable slopes and with little traffic.
5. Move the automatic transmission selector to position "R" and lightly depress the brake pedal. Evaluate pedal travel and pedal feel.
6. If the brake pedal "soft" or the pedal travel is excessively large, eliminate the cause of these phenomena.
7. If the brake pedal "hard" and the pedal travel is normal, proceed to check the entire system.
8. Press the brake pedal.
9. Move the automatic transmission selector to position "D", release the brake pedal and observe the operation of the brake system.
10. Set up an outside observer, drive at low speed, and apply the brake lightly as you pass the observer. The observer should be evaluating braking noises while you are evaluating both pedal effort and pedal travel.
11. If the effort on the pedals is excessively large or the pedal travel is unusually large, stop checking until the causes of these phenomena are eliminated.
12. If the effort and course of a pedal in norm, continue check.
13. Perform steps 10 while driving in reverse.
14. Drive the car at low speed and move the automatic transmission selector to the position "N" without pressing the brake pedal. Estimate free run path (if the brakes are stuck, the free run will be short).
15. Choose a dry and level section of the road.
16. Drive at a moderate speed. Watch to see if the vehicle pulls to one side without applying the brakes.
17. While driving at a moderate speed, apply a few light stops. Observe pedal force, pedal travel, pedal feel, and brake noise.
18. If the effort on the pedals is excessively large or the pedal travel is unusually large, stop checking until the causes of these phenomena are eliminated.
19. If pedal force and travel are OK, continue checking.
20. While driving at a moderate speed, apply some moderate braking. Observe pedal effort, pedal travel, pedal feel and brake noise, vehicle roll and/or fore/aft sag (slight forward sagging is normal).
21. If the pedal force is excessive or the pedal travel is unusually large, stop checking until the causes of these phenomena are eliminated.