BFC to Cluster Data

Table #11 BFC To Cluster Data:

In this mode of operation the scan tool can command the Instrument Cluster, by Class 2 message to the Body Function Controller (BFC) and via the Serial Peripheral Interface (SPI) serial data bus to override its normal operation and force the Instrument Cluster to enable its outputs (gauges move, light indicators etc). This mode can be used to determine whether the Instrument Cluster is capable of producing a given output. The outputs that can be controlled are listed in TABLE #11 shown in the above figure.