Controller Antilock Brakes

WARNING: This page is about a different car, the 2008 Jeep Commander. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Antilock Brake Module & Hydraulic Control Unit

Courtesy of CHRYSLER LLC

CAUTION: When removing ABM from HCU, be sure to completely separate the two components (approximately 38 mm (1.5 in.) before removing 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.

NOTE: If the ABM is being replaced with a new ABM is must be reprogrammed with the use of a scan tool.

Install new seals between the ABM and HCU.
Install the ABM (1) to the HCU (2).

Fig 2: Antilock Brake Module & Hydraulic Control Unit
Courtesy of CHRYSLER LLC

1 - ABM

2 - HCU
Install the 3 ABM (1) mounting bolts to the HCU (2) if removed tighten mounting bolts to 12 N.m (9 ft. lbs.).

Fig 3: Identifying ABM/HCU Components
Courtesy of CHRYSLER LLC
Install the HCU (3) with bracket (5) to the vehicle and tighten the 2 mounting nuts.

Fig 4: HCU Lines & Components
Courtesy of CHRYSLER LLC
Reconnect the HCU electrical connector (5).
Install the 4 chassis lines (3) at the HCU (4).
Install the secondary brake tube at the HCU (4).
Install the secondary brake tube at the master cylinder.
Install the primary brake tube at the HCU (4).
Install the primary brake tube at the master cylinder.
Install negative battery cable to the battery.
Remove the brake pedal prop rod.
Bleed base and ABS brake systems.
Refer to STANDARD PROCEDURE - BASE SERVICE INFORMATION.

Refer to STANDARD PROCEDURE - ABS SERVICE INFORMATION.
Initialize the ABS module using the scan tool.