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.