Integrated Control Unit: Removing

-- Remove the four screws (1) attaching the ABM (2) to the HCU.

Fig 1: Identifying ABM Mounting Screws

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

CAUTION:

When removing the ABM from the HCU, be sure to completely separate the two components (approximately 38 mm (1.5 inches)) before removing the ABM. Otherwise, damage to the pressure sensor or pump motor connection may result, requiring HCU replacement. Do not to touch the sensor terminals on the HCU side or the contact pads on the ABM side as this may result in contamination and issues in the future.

-- Separate the ABM (1) from the HCU (2).

Fig 2: Identifying ABM, HCU And Solenoid Valve Stems

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.