Brake Warning System

Brake Warning System Description and Operation

Brake System Indicator(s)
The IPC illuminates the brake indicator when any of the following occur:
^ The IPC detects that the park brake is engaged (signal circuit is low). If the vehicle travels 3 - 15.2 meters (10 - 50 feet) with the park brake engaged, the IPC sends a class 2 message to the BCM in order to activate an audible warning.
^ The IPC detects a low brake fluid condition (signal circuit is low). The IPC sends a class 2 message to the BCM in order to activate an audible warning.
^ The IPC performs the displays test at the start of each ignition cycle. The indicator illuminates for approximately 5 seconds.
^ The IPC detects a loss of class 2 communications with the EBCM and the discrete back-up ABS indicator signal circuit is high.