Toyota Land Cruiser

FJ60, FJ62 and FJ80 1980-1997 of release

Repair and car operation



Toyota Land Cruiser
+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engines
+ 4. Systems of cooling, heating
+ 5. Fuel and exhaust systems
+ 6. System of decrease in toxicity
+ 7. Transmission
- 8. Brake system
   8.1. Technical characteristics
   - 8.2. ABS system
      8.2.1. ABS system units
      8.2.2. Diagnostics and ABS system repair
   8.3. Blocks of disk brakes (forward or back)
   8.4. Brake support
   8.5. Brake disk
   8.6. Blocks of drum-type brakes
   8.7. Wheel cylinder of brakes
   8.8. Main cylinder of brakes
   8.9. Hoses and hydraulic actuator tubes
   8.10. Air removal from a hydraulic actuator of brakes
   8.11. Vacuum amplifier of brakes
   8.12. Blocks of the hand brake of back disk brakes
   8.13. Adjustment of the hand brake
   8.14. Cable of the hand brake
   8.15. Switch of a signal of braking
   8.16. A regulator of pressure of back brakes (dosing out and perepuskny the valve)
+ 9. Suspension brackets and steering
+ 10. Body
+ 11. Electric equipment
+ 12. Electroschemes




8.2.1. ABS system units

GENERAL INFORMATION

Arrangement of units of ABS system

1. Back sensors of speed
2, 5. Rotors of sensors of speed
3. Switch of a signal of braking
4. Control unit
6. Forward sensors of speed
7. Aktyuator
8. Relay
9. Delay sensor

Aktyuator

The structure of an aktyuator includes the main cylinder, the electrohydraulic pump and 4 solenoidal valves.

The pump is intended for liquid pumping in aktyuator receivers through which pressure in a contour of brakes moves.

Valves operate pressure in a contour of brakes at ABS system operation, it is the share of a wheel on 1 valve.

Sensors of speed of rotation of wheels

Sensors of rotor type, are mounted on each of wheels. Signals from sensors arrive on the control unit.

Forward sensors are mounted on a rotary fist, near gear rings of rotors. Rotors are structurally incorporated with forward semi-axes.

Back sensors are mounted on a bridge beam, rotors are a part of a back nave.

ABS system control unit

The control unit is mounted under a forward partition of a body. On the block signals from the switch of a signal of braking and sensors of speed of each wheel on the basis of which pressure in a hydraulic actuator of this wheel is regulated arrive. The control unit also possesses function of self-diagnostics and storing of refusals.

At refusal of system the control lamp on the dashboard lights up, and in memory the code of refusal which it is possible to consider and define nature of malfunction is brought.