Antilock Brake Module (MK25E)

REMOVAL
1. Disconnect negative (-) battery cable from battery post and isolate.
2. Raise and support vehicle.

ABM Mounting Screws - Without Traction Control:

3. If not equipped with traction control, remove three screws attaching the antilock brake module (ABM) to the HCU.

ABM Mounting Screws - With Traction Control:

4. If equipped with traction control, remove four screws attaching antilock brake module (ABM) to HCU.

ABM Assembly To HCU:

5. Slide ABM off HCU.

ABM Connectors Release Tabs:

Wiring Harness Connector At ABM:

6. Disconnect the 47-way connector from the ABM by depressing the tabs on each side of the connector cover, then pulling outward and upward on the lower half of the cover until it locks into position pointing straight outward. The connector can then be pulled straight outward off the ABM.
7. Remove ABM from vehicle.

INSTALLATION
1. Clean any debris off the mating surfaces of the HCU and ABM.

CAUTION:
- Do not reuse internal pump connector O-ring or solenoid valve stem seals. They must be replaced to ensure proper sealing.
- When installing new O-rings or solenoid valve stem seals, do not use any type of lubricant.

Solenoid Valve Seal:

2. Replace solenoid valve stem seals. These seals can be easily removed and installed by hand. Do not use any type of sharp instrument or damage to the components may occur.

Internal Pump Connector O-Ring:

3. Replace pump/motor connector O-ring if not new.
4. With connector cover completely open, install 47-way wiring connector into socket of the ABM and close cover, locking connector in place.
5. Align ABM solenoids and pump/motor wiring connector with HCU valves and connector passage. Slide ABM onto HCU.
6. If not equipped with traction control, install three screws attaching the ABM to the HCU. Tighten mounting screws to 2 N.m (17 in. lbs.) torque.
7. If equipped with traction control, install four screws attaching ABM to HCU. Tighten mounting screws to 2 N.m (17 in. lbs.) torque.
8. Lower vehicle.
9. Connect negative battery cable to battery post.
10. Hook up scan tool to initialize ABM. Check and clear any faults.