Cruise Control Indicator Lamp: Description and Operation

The CRUISE indicator (green) will be illuminated when the Powertrain Control Module (PCM) transmits a Class 2 message to the Body Function Controller (BFC) indicating the Cruise is engaged. The Body Function Controller (BFC) will then command the CRUISE indicator ON over the

Serial Peripheral Interface (SPI) serial data bus to the Instrument Cluster. In the event of a Class 2 serial data loss the CRUISE indicator will not be illuminated. In the event of an Serial Peripheral Interface (SPI) data link failure, the CRUISE indicator will not illuminate unless the indicator was illuminated prior to the Serial Peripheral Interface (SPI) data link failure.