Integrated Control Unit

1 - Anti lock brake module.
2 - Hydraulic control unit.
3 - Pump/motor.

The hydraulic control unit (2) and the anti-lock brake module (1) used with this anti-lock brake system are combined (integrated) into one unit, which is called the integrated control unit.

Fig 1: Identifying Anti Lock Brake Module, Hydraulic Control Unit And Pump/Motor

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

The ICU (2) is located in the engine compartment, mounted on a bracket attached to the left side of the front suspension crossmember.

The ABS with ESP and all-speed traction control ICU consists of the following components: The ABM, 8 (build/decay) solenoid valves, two traction control solenoid valves, two electronic shuttle valves, valve block, fluid accumulators, a pump, and an electric pump/motor.

Fig 2: Identifying ICU Mounting

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

The replaceable components of the ICU are the HCU and the ABM. No attempt should be made to service any components of the HCU or ABM. The ABM can be serviced without removing the entire assembly from the vehicle.

For additional information on the ABM. Refer to ANTI-LOCK BRAKE SYSTEM WITH ELECTRONIC STABILITY PROGRAM .

NOTE:

The Electronic Stability Control (ESC) may also be referred to as Electronic Stability Program (ESP) depending on the vehicle model year and configuration. Certain components may also reference ESP, ESC, or use the traction control symbol.

The Hydraulic Control Unit (HCU) (2) and the Antilock Brake Module (ABM) (1) used with this antilock brake system are combined (integrated) into one unit, which is called the Integrated Control Unit (ICU).

Fig 1: Identifying Integrated Control Unit (ICU) - Hydraulic Control Unit (HCU) And Anti-lock Brake Module (ABM)

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

The ICU (1) is located in the engine compartment, mounted on a bracket (3) attached to the left side of the front suspension crossmember.

Fig 2: Identifying ICU And Bracket

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

The ABS with ESC and All-Speed Traction Control ICU consists of the following components: the ABM, 8 (build/decay) solenoid valves, two traction control solenoid valves, two electronic shuttle valves, valve block, fluid accumulators, a pump, and an electric pump/motor.

For additional information on the ABM, refer to:ANTI-LOCK BRAKE SYSTEM .

For additional information on the HCU, refer to HYDRAULIC CONTROL UNIT .