Brake Warning System Description and Operation

Brake Warning System Description and Operation

Brake System Indicators

BRAKE

The IPC illuminates the BRAKE indicator and sends a serial data message in order to activate an audible warning when the following occurs:

* The IPC detects that the park brake is applied-signal circuit is low.
* The IPC detects a low brake fluid condition-signal circuit is low.
* The electronic brake control module (EBCM) detects a malfunction with the antilock brake system. The IPC receives a serial data message from the EBCM requesting illumination.
* The IPC detects a loss of communications with the EBCM and the discrete back-up ABS indicator signal is open.
* The IPC performs the displays test at the start of each ignition cycle. The indicator illuminates for approximately 5 seconds.

CHECK BRAKE FLUID

The IPC illuminates the CHECK BRAKE FLUID indicator in the DIC and sends a serial data message in order to activate an audible warning when the IPC detects a that the brake fluid level is below the normal operating range.