Check Control to tylko interfejs.
LCM wysyła na niego informacje, więc jeżeli LCM świruje to może również wysyłać błędne informacje o przepalonych żarówkach, podczas kiedy te są sprawne.
Cytat Zamieszczone przez newtis
Check control functions
The task of the check control is to inform the driver. It provides him with information via the text display in the display unit of the IKE (E38/E39 high) or via the LC display field for check control messages in the instrument cluster (E39 basic) regarding failure of important functions as well as notes and warnings.
Common features of both wiring systems
The check control function in the LCM monitors its own sensors and detects when a message is necessary for these sensors. Consequently it sends a data telegram to the IKE/instrument cluster with the request to display the message text in the text display or the message in the display field for check control messages.

The following sensors are monitored:

- Thermal oil level sensor
- Brake fluid level switch
- Coolant level switch
- Wash water level switch
The LCM is additionally connected via a line to the EML and DDE control units.

An ignition lock and belt buckle contact is included in the US version.

In addition, it also receives LCM-internal messages concerning defective lamps.

Added to this, it evaluates messages from other control units which it receives via the I-bus and sends the corresponding request to the IKE/instrument cluster.