Integrated Control Unit: Removing

-- Disconnect negative (-) battery cable from battery post and isolate.

-- Using a brake pedal holding tool as shown, depress brake pedal past its first inch of travel and hold it in this position. Holding pedal in this position will isolate master cylinder from hydraulic brake system and will not allow brake fluid to drain out of brake fluid reservoir while brake lines are open.

-- Remove the primary (1) and secondary (2) brake tubes (from master cylinder) at the hydraulic control unit.

-- Remove the remaining brake tubes (3, 4, 5, 6) at the hydraulic control unit.

Fig 1: Identifying Primary And Secondary Brake Tubes

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

NOTE:

Use this figure in the following step to release the ABM harness connector cover. It shows the location of the release tabs.

Fig 2: Releasing ABM Harness Connector Cover

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Disconnect the ABM harness connector from the Antilock Brake Module (ABM). To do so:

Fig 3: Identifying ABM Harness Connector

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Depress the tabs on each side of the connector cover, then

-- Pull outward and upward on the lower half of the cover until it locks into position pointing straight outward (2). The connector can then be pulled straight outward off the ABM (1).

-- Remove the mounting nuts (2) securing the ICU (1) to the mounting bracket (3).

Fig 4: Identifying ICU And Bracket

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Remove the ICU from the mounting bracket.

-- If ABM and HCU need to be separated. Refer to INTEGRATED CONTROL UNIT .