Anti-lock brakes/traction control (Opel Omega B)

For repairs of the ABS and traction control systems, it is recommended to contact specialists.

To avoid damaging circuits and system components, always disconnect the electronic control unit connector before performing repairs.

Hydraulic modulator, early models with 3-channel ABS system 2-SH or 2-SH/TC

Removal

1. Disconnect the negative battery cable.

2. Remove the brake fluid reservoir cap and cover the neck with plastic wrap.

3. Remove the power steering fluid reservoir. Remove the ABS electronic control unit.

Models with 4-cylinder engine

4. Disconnect the hydraulic tubes from the modulator. Loosen the mounting screws and remove the heat shield.

Models with 6-cylinder engine

5. Disconnect the upper hydraulic lines from the modulator. Remove the mounting screws and remove the heat shield.

Original posted on the website opelbook

6. Disconnect the lower hydraulic lines.

All models

7. Disconnect the ground wire, unscrew the mounting nuts and remove the modulator.

Installation

Installation is carried out in the reverse order of removal.

Hydraulic modulator and electronic control unit for ABS/traction control system, late models with 4-channel ABS system 5.3 or 5.3/TC

Removal

1. Disconnect the negative battery cable.

2. Remove the protective shield from the bottom of the engine compartment.



3. Remove the heat shield from the side of the hydraulic modulator.

4. Remove the power steering fluid reservoir.

5. Loosen the mounting screw and disconnect the ABS electronic control unit connector.

6. Disconnect the brake pipes from the master cylinder.

7. Loosen the union nuts and disconnect the six hydraulic tubes from the modulator.

8. Remove the modulator from the mounting bracket.

Installation

Installation is carried out in the reverse order of removal.

Electronic control unit ABS/traction control system, early models with 3-channel ABS system 2-SH or 2-SH/TC

Removal

Remove the electronic control unit cover, disconnect the connection connector, unscrew the mounting bolts and remove the unit.

Installation

Installation is carried out in the reverse order of removal.

Traction control switch.

Removal

1. Use a small screwdriver to pry the switch out of the instrument panel.

2. Disconnect the switch connection connector.

Installation

Installation is carried out in the reverse order of removal.

Front ABS sensors

Removal

1. Disconnect the connection connector, unscrew the mounting bolt.



2. Remove the sensor from the mounting bracket.

Installation

Installation is carried out in the reverse order of removal.

Rear ABS sensors

Removal

1. Disconnect the connection connector, unscrew the mounting bolt and remove the sensors (indicated by arrows) from the differential.

Installation

Installation is carried out in the reverse order of removal.