Integrated Control Unit (ICU): Removal

NOTE: Before proceeding, (Refer to BRAKES - WARNING) and (Refer to BRAKES - CAUTION) .

Remove the air cleaner housing. (Refer to ENGINE/AIR INTAKE SYSTEM/AIR CLEANER HOUSING - REMOVAL) or (Refer to ENGINE/AIR INTAKE SYSTEM/AIR CLEANER HOUSING - REMOVAL)
Remove the battery. (Refer to ELECTRICAL/BATTERY SYSTEM/BATTERY - REMOVAL) .

Fig 1: BRAKE FLUID LEVEL SWITCH
Courtesy of DAIMLERCHRYSLER CORP.
Disconnect the vehicle wiring harness connector (2) at the brake fluid level switch in the master cylinder brake fluid reservoir (1).

Fig 2: PDC With Bracket Mounting - Non-Turbo Engine
Courtesy of DAIMLERCHRYSLER CORP.

1 - MOUNTING BOLTS

2 - PDC AND MOUNTING BRACKET
Non-Turbo Engine - Remove the two bolts (1) fastening the power distribution center and mounting bracket (2) in place.

Fig 3: PDC With Bracket Mounting - Turbo Engine
Courtesy of DAIMLERCHRYSLER CORP.

1 - MOUNTING BOLTS

2 - PDC AND MOUNTING BRACKET
Turbo Engine - Remove the two bolts (1) fastening the power distribution center and mounting bracket (2) in place.
Lift the power distribution center and mounting bracket up and move it to the driver side, out of the way.

Clean the area around where brake tubes attach to the ICU hydraulic control unit (HCU) using a suitable brake cleaner such as Mopar® Brake Parts Cleaner or equivalent.

Fig 4: LHD Master Cylinder & Primary And Secondary Brake Tubes To ICU

Courtesy of DAIMLERCHRYSLER CORP.

1 - MASTER CYLINDER

2 - HCU

3 - LEFT FRONT CHASSIS BRAKE TUBE

4 - SECONDARY BRAKE TUBE

5 - PRIMARY BRAKE TUBE

LHD Vehicle:

Disconnect the primary (5) and secondary (4) brake tubes coming from the master cylinder (1) at the HCU (2).
Disconnect the left front chassis brake tube (3) at the HCU (2).

Fig 5: RHD Master Cylinder & Primary And Secondary Brake Tubes To ICU

Courtesy of DAIMLERCHRYSLER CORP.

1 - MASTER CYLINDER

2 - SECONDARY BRAKE TUBE

3 - PRIMARY BRAKE TUBE

4 - HCU

5 - LEFT FRONT CHASSIS BRAKE TUBE

RHD Vehicle:

Disconnect the primary (3) and secondary (2) brake tubes coming from the master cylinder (1) at the HCU (4).
Disconnect the left front chassis brake tube (3) at the HCU (2).

Fig 6: Chassis Brake Tubes At HCU

Courtesy of DAIMLERCHRYSLER CORP.

1 - RIGHT FRONT CHASSIS BRAKE TUBE

2 - LEFT REAR CHASSIS BRAKE TUBE

3 - RIGHT REAR CHASSIS BRAKE TUBE

4 - HCU

Disconnect the right front (1), left rear (2) and right rear (3) chassis brake tubes at the HCU (4).

Fig 7: ABM Connector Release Tabs
Courtesy of DAIMLERCHRYSLER CORP.

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

Fig 8: Wiring Harness Connector at ABM
Courtesy of DAIMLERCHRYSLER CORP.

1 - ABM (PART OF ICU)

2 - WIRING HARNESS CONNECTOR
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).

Raise and support the vehicle. (Refer to LUBRICATION & MAINTENANCE/HOISTING - STANDARD PROCEDURE) .

Fig 9: ICU Mounting Location

Courtesy of DAIMLERCHRYSLER CORP.

1 - BODY FRAME RAIL

2 - FRONT MOUNTING SCREW

3 - ICU MOUNTING BRACKET

4 - REAR MOUNTING SCREWS

Remove the two rear mounting screws (4) attaching the ICU mounting bracket (3) to the body (1).
Lower the vehicle.
Remove the front mounting screw (2) attaching the ICU mounting bracket (3) to the body (1).
Lift the ICU and mounting bracket from the vehicle.
To separate the ABM from the HCU, (Refer to BRAKES/HYDRAULIC/MECHANICAL/ICU (INTEGRATED CONTROL UNIT) - DISASSEMBLY) .