Malibu V6-191 3.1L VIN M SFI (1997)
Data Link Connector: Description and Operation
Serial Peripheral Interface (SPI)
The Serial Peripheral Interface (SPI) is a three wire interface connecting the Body Function Controller (BFC) to the Instrument Cluster, which allows for
them to exchange information. This interface is a synchronous serial data link where the Body Function Controller (BFC) is the master and the
Instrument Cluster is the slave. Because of the need for modules on the different serial data links to communicate with each other, the Body Function
Controller (BFC) acts as an interpreter, or master, for data communication between the Class 2 and Serial Peripheral Interface (SPI) data lines.
