Driver Warning System

The Body Function Controller (BFC) is responsible for interpreting all driver warnings sent by control modules on the Class 2 serial data line and sending that information on to the Instrument Cluster in the form of a Serial Peripheral Interface (SPI) serial data bus message. The list of messages sent by the Body Function Controller (BFC) to the Instrument Cluster are as follows:
^ Fuel Gauge Position
^ Temperature Gauge Position
^ Oil Pressure
^ Low Engine Coolant
^ Check Oil
^ Volts
^ ABS
^ High Beam
^ Low Fuel
^ High Temperature
^ Washer Fluid Level Low
^ CRUISE
^ BRAKE
^ SERVICE VEHICLE SOON
^ Door Ajar
^ Seat Belt
^ THEFT SYSTEM
^ PRNDL