Anti-Lock Brake System Module - Description

DESCRIPTION






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. The ABM also monitors the Electronic Stability Control (ESC).

The ABM (1) is mounted to the HCU (2) as part of the Integrated Control Unit (ICU). The ABM uses a 47-Way 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 is on the CAN-C bus.

CAUTION: For Adaptive Cruise Control (ACC) equipped vehicles, the ABM and HCU are not separately serviceable. They must be replaced as an assembly.