Note: Before starting work, see Chapter 28.
Hydraulic modulator
1. Disconnect the battery ground clamp.
2. Remove the modulator control relay by unscrewing the screw and lifting up the plastic cover. The large relay controls the operation of the solenoid valve, the small relay controls the operation of the return pump. Installation is carried out in the reverse order.
3. To remove the modulator block, remove the relay cover, unscrew the cable terminal, disconnect the modulator wiring. Disconnect the ground wiring on the modulator housing.
4. Turn off couplings of the pipeline of a brake, get a pipe and immediately plug its end and an aperture of the modulator.
5. Unscrew the mounting nuts of the modulator and clamps, remove the block. Do not disassemble the modulator, this assembly is in a non-separable case and cannot be repaired.
6. Installation is carried out in the reverse order. Bleed the hydraulic system as described in Chapters 17 And 28.
Electronic control device
7. Disconnect the battery ground clamp.
8. Remove the rear seat. The control unit is located under the seat on the left side.
9. Disconnect the control unit connector.
10. Turn off lock nuts, get the control block.
11. Installation is carried out in the reverse order.
Front wheel speed sensor
12. Jack up the front of the car. Remove the corresponding front wheel.
13. Turn off a bolt of fastening, remove the gauge from a rack of a forward suspension bracket.
14. Release the cable o-rings from the holder brackets on the suspension strut and below the wheel.
15. From inside the engine compartment, release the wiring connector from the holder, separate the connector. The left connector is located behind the radiator expansion tank, the right connector is located behind the windshield washer reservoir.
16. Separate the electrical wiring through the wheel arch, remove the speed sensor assembly.
17. Installation is carried out in the reverse order. When installing, carefully slide the sensor towards the post as far as possible so that the tip touches the CV joint rotor. Clamp the sensor in it.
Rear wheel speed sensor
18. Jack up the rear of the car. Remove the corresponding rear wheel.
19. Pull off the handbrake cable gasket on the rear axle flange to gain access to the sensor.
20. Unscrew the fastening bolt, remove the sensor from the rear axle flange.
21. Turn off bolts of fastening, let out a plait of wires of the gauge from a trailing arm of a suspension bracket.
22. Remove the rear seat.
23. Separate the connectors.
24. Remove the sealing rings, spread the electrical wiring through the floor, remove the sensor from the car.
25. Before installation, check the sensor and, if necessary, adjust the clearance of the hub bearing, as described in Section 10. Use a new sensor O-ring.
26. Installation is carried out in the reverse order. Cover the sensor with paste, install it in place so that the tip touches the rear hub rotor. Clamp the sensor in this position. Properly position all wiring brackets and o-rings on the trailing arm and in the floor.
Wheel speed sensor rotor
27. The wheel speed sensor rotors are part of the outer driveshaft CV joint and cannot be replaced separately. If the rotor is not serviceable, a new CV joint must be installed (see Section 8).
28. To remove the rear rotor of the speed sensor, guided by Section 10, remove the rear hub assembly.
29. Install the hub in a vise and knock out the rotor with a puncher inserted through the hole in the hub.
30. Fit the new rotor, install the hub assembly as described in Section 10.
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