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Please provide year of your car and drivetrain if you're looking for help.
 

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Hope this helps you out:


Mk25e ICU

Mk25e ICU


1 - ANTILOCK BRAKE MODULE (ABM)
2 - HYDRAULIC CONTROL UNIT (HCU)
3 - PUMP/MOTOR




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 Antilock Brake Module (ABM) is a microprocessor-based device which monitors the antilock brake system (ABS) during normal braking and controls it when the vehicle is in an ABS stop or when in a traction control or Electronic Stability Control (ESC) situation. The ABM utilizes a 47-way electrical connector on the vehicle wiring harness. The power source for the ABM is through the ignition switch in the RUN or ON position.


The ABM (1) is mounted to the HCU (2) as part of the Integrated Control Unit (ICU). The ICU is located in the engine compartment on the inboard side of the right body frame rail behind the strut tower.
 

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2.0L/2.4L ENGINE REMOVAL






  1. Disconnect and isolate battery negative cable from battery post.


    BRAKE PEDAL HOLDING TOOL

    BRAKE PEDAL HOLDING TOOL
  2. Using a brake pedal holding tool as shown, depress the brake pedal past its first 25 mm (1 inch) of travel and hold it in this position. This will isolate the master cylinder from the brake hydraulic system and will not allow the brake fluid to drain out of the master cylinder reservoir while the lines are disconnected.
  3. Remove the engine appearance cover.
  4. Loosen lower and upper mounting nuts, then remove the exhaust heat shield from the dash panel.
  5. Pull the brake tube bundle routing clips (with tubes) loose from studs on the dash panel.


    BRAKE TUBES AT ICU - MK25E

    BRAKE TUBES AT ICU - MK25E
  6. Remove the primary (4) and secondary (1) brake tubes (from master cylinder) at the hydraulic control unit (7).
  7. Remove the remaining brake tubes (2, 3, 5, 6) at the hydraulic control unit (7).


    ABM Connector Release Tabs

    ABM Connector Release Tabs



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




    Wiring Harness Connector At ABM

    Wiring Harness Connector At ABM

    1 - ABM (PART OF ICU)
    2 - WIRING HARNESS CONNECTOR
  8. Disconnect the ABM harness connector from the Antilock Brake Module (ABM). To do so:
    • 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).


  9. ICU MOUNTING

    ICU MOUNTING
  10. Loosen, but do not remove, the two mounting screws (2) attaching the ICU (1) mounting bracket to the body.
  11. Lift the ICU and mounting bracket (1) off the mounting screws (2).
  12. Move the brake tubes around as necessary without bending them and remove the ICU with bracket through the opening between the A/C lines and the exhaust manifold.
 

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DISASSEMBLY


ICU Mounting Bolt

ICU Mounting Bolt


1 - ICU
2 - MOUNTING BOLT
3 - MOUNTING BRACKET




NOTE
For vehicles equipped with Hill Start Assist (HSA), the ICU must be serviced as an assembly. The HCU and ABM are not serviceable separately.







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.




  1. If the mounting bracket (3) needs to be removed from the ICU, remove the single mounting bolt (2), then slide the ICU's mounting pins out of the grommets in the bracket and remove the bracket.


    ICU MOUNTING PINS

    ICU MOUNTING PINS
  2. Remove the mounting pins from the ICU.


    ABM Mounting Screws - Without Traction Control

    ABM Mounting Screws - Without Traction Control

    1 - MOUNTING SCREWS
    2 - ABM
  3. If equipped with ABS-only (non-ESC vehicle), remove the three screws (1) attaching the ABM (2) to the HCU.


    ABM Mounting Screws - With Traction Control

    ABM Mounting Screws - With Traction Control

    1 - MOUNTING SCREWS
    2 - ABM
  4. If equipped with ESC, remove the four screws (1) attaching the ABM (2) to the HCU.


    ABM Assembly To HCU

    ABM Assembly To HCU

    1 - ABM
    2 - HCU
    3 - SOLENOID VALVE STEM
  5. Separate the ABM (1) from the HCU (2).
 

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2.0L/2.4L ENGINE INSTALLATION


ICU MOUNTING

ICU MOUNTING

  1. Install the ICU with bracket (1) through the opening between the A/C lines and the exhaust manifold using the opposite of how it was removed.
  2. Place the mounting bracket for the ICU (1) over the mounting screws (2) and hang the assembly in place. Tighten the two mounting screws (2) to 23 N·m (17 ft. lbs.).


    Wiring Harness Connector At ABM

    Wiring Harness Connector At ABM

    1 - ABM (PART OF ICU)
    2 - WIRING HARNESS CONNECTOR



    CAUTION
    Before installing the ABM harness connector on the ABM, be sure the seal is properly installed in the connector.


  3. Insert the ABM wiring harness connector (2) into the socket of the ABM (1) and close the cover, locking the connector in place.


    BRAKE TUBES AT ICU - MK25E

    BRAKE TUBES AT ICU - MK25E



    CAUTION
    The brake tubes must be routed to the correct ports. Improper routing can lead to degraded or undesirable system performance including external brake fluid leaks.

    • (1) Master Cylinder Secondary
    • (2) Front Left
    • (3) Front Right
    • (4) Master Cylinder Primary
    • (5) Rear Left
    • (6) Rear Right




    BRAKE TUBES AT ICU - MK25E

    BRAKE TUBES AT ICU - MK25E
  4. Install the four chassis brake tubes (2, 3, 5, 6) at the ICU hydraulic control unit (7). Tighten the tube nuts to 17 N·m (150 in. lbs.).
  5. Install the primary (4) and secondary (1) brake tubes at the ICU hydraulic control unit (7). Tighten the tube nuts to 17 N·m (150 in. lbs.).
  6. Push the brake tube bundle routing clips (with tubes) onto the studs on the dash panel.
  7. Install the heat shield on the dash panel and tighten the lower and upper mounting nuts.


    BRAKE PEDAL HOLDING TOOL

    BRAKE PEDAL HOLDING TOOL
  8. Remove the brake pedal holding tool.
  9. Install the engine appearance cover.
  10. Connect the battery negative cable to the battery post. It is important that this be performed properly.


    BLEED HOSE SET UP

    BLEED HOSE SET UP
  11. Hook up the scan tool to initialize the ABM and perform the following:
    • Clear any faults.
    • Fill the master cylinder to the proper fill level and bleed the base and ABS hydraulic systems.
    • Check for leaks.
    • Perform the ABS Verification Test and road test the vehicle
 
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