Installation

PROCEDURE
1. Install the HCU back in its mounting bracket using the reverse sequence of removing it from bracket. Install and securely tighten the 3 HCU mounting isolator to bracket mounting nuts.

Brake Tube Connections At HCU:

Master Cylinder Brake Tube Connections At HCU:

2. Connect the 2 brake fluid supply tubes from the master cylinder onto the inlet ports of the Hydraulic Control Unit HCU. Connect the 4 brake fluid output tubes to the ports on the HCU. Torque all brake tube fitting nuts to 19 Nm (14 ft. lbs.).

CAUTION: Verify that the vehicle's ignition switch is in the off position before connecting the 60 way connector on the Controller Antilock Brake CAB.

Connector Removal From CAB:

3. Connect the wiring harness 60 way connector to the CAB using the following procedure. Install connector onto CAB with the connector pins located in latch first. Then rotate rear of connector down onto CAB until fully seated onto connector pins of CAB. Rotate connector latch down until seated on the top of the CAB connector.

HCU Electrical Connections:

4. Connect the vehicles wiring harness connector on the pump motor connector of the HCU.

CAUTION: Heat shield must be installed when replacing or servicing HCU. Failure to install heat shield can result in a failure of the CAB due to high temperature.

5. Install heat shield back on mounting bracket of HCU.
6. Bleed the air from the brake hydraulic system. Refer to Antilock Brake System Service and Repair for the proper bleeding procedure to be used. When bleeding brake system visually inspect all line fittings previously disconnected for any signs of leakage.