Hydraulic Control Assembly - Antilock Brakes: Service and Repair

Hydraulic Control Unit (HCU)

















Removal and Installation

WARNING: Do not use any fluid other than clean brake fluid meeting manufacturer's specification. Additionally, do not use brake fluid that has been previously drained. Following these instructions will help prevent system contamination, brake component damage and the risk of serious personal injury.

WARNING: Carefully read cautionary information on product label. For EMERGENCY MEDICAL INFORMATION seek medical advice. In the USA or Canada on Ford/Motorcraft products call: 1-800-959-3673. For additional information, consult the product Material Safety Data Sheet (MSDS) if available. Failure to follow these instructions may result in serious personal injury.

NOTICE: Do not spill brake fluid on painted or plastic surfaces or damage to the surface may occur. If brake fluid is spilled onto a painted or plastic surface, immediately wash the surface with water.

NOTICE: Electronic modules are sensitive to electrical charges. The Anti-lock Brake System (ABS) module can be damaged if exposed to these charges.

1. NOTE: This step is only necessary if a new ABS module or a new Hydraulic Control Unit (HCU) is being installed.

Connect the scan tool and upload the module configuration information from the ABS module.

2. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Vehicle Jacking and Lifting.

3. Remove the battery tray. For additional information, refer to Battery.

4. Disconnect the ABS electrical connector.

5. NOTE: Brake tubes must be installed in their original locations and orientations.

Loosen the brake tube-to-HCU fittings and position the brake tubes aside.

- To install,
- tighten the front and rear brake tube-to-HCU fittings to 23 Nm (17 lb-ft).

- tighten the master cylinder brake tube-to-HCU fittings to 25 Nm (18 lb-ft).

6. Loosen the 2 bracket-to-HCU nuts and remove the HCU.
- To install, tighten to 8 Nm (71 lb-in).

7. To install, reverse the removal procedure.
- If a new ABS module or HCU was installed, connect the scan tool and download the module configuration information from the scan tool. For additional information, refer to Information Bus.

- Bleed the brake system. For additional information, refer to Brakes and Traction Control.