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. 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.

1. Remove the Air Cleaner (ACL) assembly.

2. NOTICE: Clean and plug each port of the Hydraulic Control Unit (HCU) to prevent contaminates from entering the HCU or damage to the HCU may occur.
Disconnect the 6 brake tube-to-Hydraulic Control Unit (HCU) fittings.
- To install, tighten to 18 Nm (159 lb-in).

3. Disconnect the ABS module electrical connector.

4. Remove the 2 HCU-to-mounting bracket nuts.
- To install, tighten to 9 Nm (80 lb-in).

5. Remove the HCU.

6. To install, reverse the removal procedure.

7. Bleed the brake system.