Brake System Indicator
The IPC illuminates the brake indicator when any of the following occur:
| • | The body control module (BCM) detects that the park brake is engaged.
The IPC receives a class 2 message from the BCM requesting illumination.
If the vehicle is shifted out of park with the park brake engaged, the BCM
sends a class 2 message to the radio in order to activate the audible
warning. |
| • | The BCM detects a low brake fluid condition. The IPC receives
a class 2 message from the BCM requesting illumination. |
| • | The EBCM detects a brake failure condition. The IPC receives a
class 2 message from the EBCM requesting illumination. |
| • | The IPC performs the displays test at the start of each ignition
cycle. The indicator illuminates for approximately 3 seconds. |
| • | The IPC detects a loss of class 2 communications with either
the BCM or the EBCM. |
