Opel Vectra A

since 1988-1995 release

Repair and operation of the car

Vektr's Opel And
+ 1. Maintenance instruction
+ 1.1 Maintenance
+ 2. Engine
+ 3. Repair of DOHC engines
+ 4. Repair of the diesel engine
+ 5. Cooling system
+ 6. Fuel system
+ 7. The fuel and exhaust system of models with system of injection of fuel
+ 8. Exhaust system and system of decrease in toxicity of exhaust gases
+ 9. Fuel systems of the diesel engine
+ 10. Engine electrical systems
+ 11. Transmission
+ 12. Mechanical transmission
+ 13. Automatic transmission
+ 14. Power shafts
- 15. Brake system
   15.2. General information
   15.3. Anti-blocking system of brakes (ABS)
   15.4. Pumping of the hydraulic brake system
   + 15.5. Replacement of front brake shoes
   15.6. Replacement of back brake shoes on disk brakes
   + 15.7. Replacement of back brake shoes on drum brakes
   15.8. Replacement of brake shoes of the emergency brake on back disk brakes
   15.9. Support of a forward brake
   15:10. Support of a back disk brake
   15:11. Brake disk
   15:12. Forward brake disk
   15:13. A back brake disk on models with SOHC engines
   15:14. A back brake disk on models with DOHC engines
   15:15. Brake drum
   15:16. Back working brake cylinder
   15:17. Brake board of a back brake
   15:18. Protection cover of a forward brake disk
   15:19. Main brake cylinder
   15:20. Repair of the main brake cylinder (model without ABS)
   15:21. Vacuum amplifier of brakes
   15:22. Hydraulic ABS modulator
   15:23. The ABS sensors installed on wheels
   15:24. ABS control unit
   15:25. ABS relay (only ABS-2E system)
   15:26. Valves of adjustment of pressure
   15:27. Brake pipelines and hoses
   15:28. Adjustment of the emergency brake
   + 15:29. Cable of the emergency brake
   15:30. Lever of the emergency brake
   15:31. Brake pedal
+ 16. Suspension bracket
+ 17. Body
+ 18. Electric equipment
+ 19. Check of malfunctions


15.3. Anti-blocking system of brakes (ABS)


On the cars equipped with anti-blocking system of brakes at inclusion of ignition on a combination of devices the lassie of ABS lights up for a short time.

The anti-blocking system of a predotvr shchat blocking of wheels at sharp braking. Thanks to it the car at full braking remains operated. The system consists of the hydraulic block of the regulator and 4-wheeled sensors. The block of the regulator contains the electronic control device (ECU), hydraulic electromagnetic valves and the pump with the electric drive. Electromagnetic valves are run by the ECU block which receives signals from 4 sensors installed on each wheel of the car which control the speed of rotation of each wheel. Comparing these signals, the ECU block can determine car speed. Due to comparison of speed of separately taken wheel with the average speed of the car the control unit defines a condition of blocking of a wheel. When the wheel approaches blocking, pressure of brake fluid is too high therefore pressure in a support decreases on a control unit signal. It occurs until the wheel does not begin to accelerate again. Then the valve are closed again and pressure created by a brake pedal begins to make impact repeatedly. However value of pressure in a brake contour of this wheel not above the general pressure in system. Work of ABS at sharp braking repeats on each wheel until the effort is made for a pedal or the car does not stop.

At any malfunction in the ABS system there is its shutdown. In this case the control lamp of ABS on the dashboard lights up and the brake system works in the usual mode.