Body Control Systems: Description and Operation

Data Bus On Board Diagnostic Interface Gateway

Instrument clusters from 06.99 are integrated into the vehicle CAN Data Bus network (may also be known as "CAN-Bus" or "Data-Bus").

The data bus on board diagnostic interface J533 (which is integrated into the instrument cluster) enables data to be exchanged between the vehicle CAN Data-Bus network and the Data Link Connector (DLC) "K-wire".

The data bus on board diagnostic interface J533 has specific On Board Diagnostic (OBD) capabilities and requires a separate address word.

On replacement instrument clusters, the data bus on board diagnostic interface J533 must be coded according to vehicle market version and equipment level variables.