Anti-Lock Brake System (ABS) Module

The ABS module is attached directly to the HCU and is the electronic control unit for all of the ABS and stability control systems. The ABS module monitors all sensor inputs and all CAN messages relating to ABS and stability control, then directly controls the solenoid valves and the hydraulic pump motor in the HCU. The ABS module is available separately for service.

When a new ABS module is installed, it must be programmed with the vehicle configuration information and programmed with the latest level of module software. Refer to: MODULE CONFIGURATION - SYSTEM OPERATION AND COMPONENT DESCRIPTION .

When an ABS or stability control system fault has been corrected or a new component has been installed, the ABS module must be calibrated. The calibration procedure (IVD Initialization) is carried out using a diagnostic scan tool and is required for the stability control sensors to learn the zero-position of the vehicle. The calibration procedure requires the vehicle to be on a level surface and not moving.