Bus messages, Seat belt system

For a detailed description of the car's bus system, see bus and diagnostics communication, detailed description .

The BCM uses the following information

Bus messages	Unit	Transmitter	Description
Seat-belt switch, driver	On/Off	ACM	Detects if the belt is fastened or unfastened
Belt switch, passenger	On/Off	ACM	Detects if the belt is fastened or unfastened

The BCM sends the following information

Bus messages	Unit	Transmitter	Description
Seat-belt warning lamp, passenger	On/Off	MIU	The BCM transmits a warning message for the switch panel
Seat-belt warning lamp	On/Off	MIU	The BCM tranmits a warning message for MIU