Brake Indicator
The BRAKE warning indicator (red) will be illuminated when the Ignition Switch is in RUN position and the Park Brake is engaged. The BRAKE indicator will illuminate when the
Electronic Brake Control Module (EBCM) transmits a Class 2 message to the
Body Function Controller (BFC) indicating there has been a Brake Fail Condition. The
Body Function Controller (BFC) will then command the BRAKE indicator ON over the Serial Peripheral Interface
(SPI) data line to the Instrument Cluster. In the event of the Electronic Brake Control Module (EBCM) commanding the BRAKE indicator to illuminate the Cruise function will be canceled. In the event of a Class 2 serial data loss the BRAKE indicator will illuminate. In the event of an Serial Peripheral Interface (SPI) data link failure, the BRAKE indicator will not illuminate unless the indicator was illuminated prior to the Serial Peripheral Interface (SPI) data link failure.