Door Ajar Indicator

This is a distributed function. The Door Ajar indicator (red) will indicate to the driver that one or more of the vehicle doors are open when the Ignition Switch is turned to the RUN position., This will also cause a chime. The Door Ajar indicator and chime will be turned OFF when all doors are closed. The Body Function Controller (BFC) will read the status of all door inputs, determine the indicator control and then send the control state to the Instrument Cluster in a Serial Peripheral Interface (SPI) message. The Instrument Cluster will read the Door Ajar indicator control bit in the Serial Peripheral Interface (SPI) message and control the indicator directly. In the event of a loss of the Serial Peripheral Interface (SPI) interface with the Body Function Controller (BFC), the Instrument Cluster will turn the Door Ajar indicator OFF.