Hydraulic Control Unit (HCU)

Removal

All cars

1.

CAUTION: If brake fluid comes into contact with the paintwork, the affected area must be immediately washed with cold water.

Disconnect the battery ground cable.

2. Disconnect the plug connector on the filler cap.

• 1. Pull back the tongue.
• 2. Press the clamps.
• 3. Disconnect the plug connector.

3.

CAUTION: Avoid allowing dirt to get on the filler cap.

Remove the filler cap from the tank.



4. Loosen the front wheel nuts.

5. Raise and support the vehicle. Refer to Section 100-02 for additional information.

6. Remove the front wheels.

7. Release the air bleed nipple.

• 1.Remove the air bleed nipple cap.
• 2. Release the air bleed nipple.

8.

NOTE: Perform this procedure on both front brake lines.

Remove the brake fluid from the brake fluid reservoir.

• 1.Connect the air bleed tube to the air bleed nipple and immerse it in a suitable container.
• 2. Press the brake pedal until the brake fluid stops leaking.
• 3. Tighten the air bleed screw.

9. Lower the vehicle.

10. Remove the air cleaner. Refer to Section 303-12 for additional information.

11. Remove the air cleaner outlet pipe.

12. Disconnect the plug connector.



13. Remove the screw securing the central electrical distribution box.



14. Disconnect the central electrical distribution box. Move the air filter to the side.




15. Disconnect the hydraulic control unit plug connector.

• 1. Loosen the clamp.
• 2. Disconnect the plug connector.

Vehicles with a course stability control function

16. Disconnect the hydraulic control unit plug connector.

• 1. Loosen the clamp.
• 2. Disconnect the plug connector.

All cars


17.

CAUTION: Plug the brake lines to prevent brake fluid leakage and dirt ingress.

Disconnect the brake lines from the hydraulic control unit.



18. Disconnect the brake lines.



Left-hand drive vehicles

19.

CAUTION: Cap the brake line connections to prevent brake fluid leakage and dirt ingress.

Disconnect the brake lines from the master cylinder.



All cars


20. Disconnect the hydraulic control unit.



21. Disconnect the wiring harness from the suspension strut.



22. Remove the hydraulic control unit.

Installation

1.

NOTE: Bleed the brake system after installation. Refer to Section 206-00 for additional information.

When installing, perform the removal procedure in reverse order.